Relevant bibliographies by topics / Analytical geochemistry

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Analytical geochemistry'

Author: Grafiati
Published: 4 June 2021
Last updated: 28 July 2024

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Journal articles on the topic "Analytical geochemistry"

1

McCreedy, Tom. "Advances in analytical geochemistry." Analytica Chimica Acta 347, no. 3 (August 1997): 397. http://dx.doi.org/10.1016/s0003-2670(97)81189-0.

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DEMETRIADES, A. "Applied geochemistry in the twenty-first century: mineral exploration and environmental surveys." Bulletin of the Geological Society of Greece 34, no. 3 (January 1, 2001): 1131. http://dx.doi.org/10.12681/bgsg.17173.

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Applied (exploration and environmental) geochemistry in the twentieth century is briefly reviewed, and its future developments in the twenty-first century are envisaged in the light of advances in analytical instruments (laboratory and field) and computer technology. It is concluded that applied geochemical methods must be used by well-trained applied geochemists, and the potential for future developments is limited only by their ingenuity.
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Wiedenbeck, Michael. "Proper Terminology in Analytical Geochemistry." Elements 13, no. 6 (December 1, 2017): 446. http://dx.doi.org/10.2138/gselements.13.6.446.

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Dowey, Patrick J., Mark Osborne, and Herbert Volk. "Application of analytical techniques to petroleum systems: an introduction." Geological Society, London, Special Publications 484, no. 1 (2020): 1–7. http://dx.doi.org/10.1144/sp484-2020-57.

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AbstractCutting-edge techniques have always been utilized in petroleum exploration and production to reduce costs and improve efficiencies. Innovations in analytical methods will continue to play a key role in the industry moving forwards, as society shifts towards lower carbon energy systems. This volume brings together new analytical approaches and describes how they can be applied to the study of petroleum systems. The papers within this volume cover a wide range of topics and case studies, in the fields of fluid and isotope geochemistry, organic geochemistry, imaging and sediment provenance. The work illustrates how the current, state-of-the-art technology can be effectively utilized to address ongoing challenges in petroleum geoscience.
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Doherty, Cathleen L., and Brian T. Buckley. "Translating Analytical Techniques in Geochemistry to Environmental Health." Molecules 26, no. 9 (May 10, 2021): 2821. http://dx.doi.org/10.3390/molecules26092821.

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From human health exposure related to environmental contamination to ancient deep-Earth processes related to differentiation of the Earth’s geochemical reservoirs, the adaptability of inductively coupled plasma mass spectrometry (ICP-MS) has proven to be an indispensable standard technique that transcends disciplines. Continued advancements in ICP-MS, including improved auxiliary applications such as laser ablation (LA), ion/liquid chromatography (IC), automated pre-concentration systems (e.g., seaFAST), and improved desolvating nebulizer systems (e.g., Aridus and Apex) have revolutionized our ability to analyze almost any sample matrix with remarkable precision at exceedingly low elemental abundances. The versatility in ICP-MS applications allows for effective interdisciplinary crossover, opening a world of analytical possibilities. In this communication, we discuss the adaptability of geochemical techniques, including sample preparation and analysis, to environmental and biological systems, using Pb isotopes for source apportionment as a primary example.
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Petrov, L. L., I. E. Vasil'eva, T. N. Gunicheva, A. I. Kuznetsova, V. I. Men'shikov, L. A. Pavlova, S. I. Prokopchuk, et al. "Analytical Department of the Vinogradov Institute of Geochemistry." Journal of Analytical Chemistry 58, no. 12 (December 2003): 1165–73. http://dx.doi.org/10.1023/b:janc.0000008957.71846.ca.

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Willis, J. P. "Instrumental analytical techniques in geochemistry: Requirements and applications." Fresenius' Zeitschrift für analytische Chemie 324, no. 8 (January 1986): 855–64. http://dx.doi.org/10.1007/bf00473181.

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Harmon, Russell, and Riccardo Vannucci. "Frontiers in Analytical Geochemistry – An IGC 2004 perspective." Applied Geochemistry 21, no. 5 (May 2006): 727–29. http://dx.doi.org/10.1016/j.apgeochem.2006.02.002.

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Hunt, John B., and Peter G. Hill. "Tephra geochemistry: a discussion of some persistent analytical problems." Holocene 3, no. 3 (September 1993): 271–78. http://dx.doi.org/10.1177/095968369300300310.

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Dowey, Patrick J., Mark Osborne, and Herbert Volk. "About this title - Application of Analytical Techniques to Petroleum Systems." Geological Society, London, Special Publications 484, no. 1 (2020): NP. http://dx.doi.org/10.1144/sp484.

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Cutting-edge techniques have always been utilized in petroleum exploration and production to reduce costs and improve efficiencies. The demand for petroleum in the form of oil and gas is expected to increase for electricity production, transport and chemical production, largely driven by an increase in energy consumption in the developing world. Innovations in analytical methods will continue to play a key role in the industry moving forwards as society shifts towards lower carbon energy systems and more advantaged oil and gas resources are targeted. This volume brings together new analytical approaches and describes how they can be applied to the study of petroleum systems. The papers within this volume cover a wide range of topics and case studies, in the fields of fluid and isotope geochemistry, organic geochemistry, imaging and sediment provenance. The work illustrates how the current, state-of-the-art technology can be effectively utilised to address ongoing challenges in petroleum geoscience.
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Dissertations / Theses on the topic "Analytical geochemistry"

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McAlister, John J. "Characterisation of basaltic weathering products by modern analytical techniques." Thesis, Queen's University Belfast, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329424.

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Majumder, Santanu. "Pollution assessment of arsenic in groundwater: geochemistry and analytical aspects." Doctoral thesis, Universitat de Girona, 2013. http://hdl.handle.net/10803/125308.

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Apart from the geological controls that can cause As mobilization in groundwater in the Bengal Delta Plain, local anthropogenic factors may also contribute to some extent. Investigations showed that As(III) get enriched in the groundwater after the monsoonal season. This could be due to the enhanced reducing conditions in the aquifer post-monsoonal recharge. The larger inorganic colloids were responsible to scavenge As(III) and the smaller organic/organo-metallic colloids were found to scavenge As(V). A study was carried out to improve the Solar Oxidation and Removal of Arsenic (SORAS) for rural population, using tomatoes instead of lemons, showing that tomato was more efficient and cost-effective than lemon or lime. A novel technique combining hollow fiber liquid phase microextraction (HF-LPME) with Total Reflection X-Ray Fluorescence (TXRF) for the determination and speciation of As in groundwater was developed. The results in the laboratory samples were found encouraging and applied to natural samples successfully
Además de los controles geológicos, los factores antropogénicos contribuyen también a la movilización de arsénico en el agua subterránea del Bengal Delta Plain. La concentración de As(III) aumenta después de la temporada del monzón, debido a las condiciones más reductoras en el acuífero. El As(III) se encuentra asociado a coloides inorgánicos de mayor tamaño mientras que los coloides orgánicos/organometálicos más pequeños contienen As(V). Se llevó a cabo un estudio para mejorar el proceso SORAS (Solar Oxidation and Removal of Arsenic) comparando diferentes fuentes de citrato, y demostrando que el tomate es más eficiente y económico que el limón o la lima. Se ha desarrollado un método novedoso para la determinación y especiación de As basado en microextracción en fase líquida en fibra hueca (HF-LPME) combinados con fluorescencia de rayos X con reflexión total (TXRF), y que ha sido aplicado con éxito en diferentes muestras de aguas naturales
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Marr, Robert A. (Robert Allen) 1965. "An investigation of Zr and Ti-bearing alkali aluminosilicate glasses : solubility experiments, Raman spectroscopy and 23Na NMR analyses." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35011.

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The solubility of Zr-bearing minerals in peralkaline, H2O-saturated alkali aluminosilicate melts with or without added F reaches a maximum of about 4 and 3.5 wt.% ZrO2 respectively at approximately 57 wt.% SiO2. The saturating phase for melts with SiO2 content above this threshold is zircon. In the halogen-free experiments, the saturating phase for melts with lower silica content is wadeite (K2ZrSi 3O9), while ZrO2 crystallizes from melts with 1 wt.% added F. Experiments with Cl-bearing melts indicate no maximum solubility of Zr minerals; the solubility remains at 2 to 2.2 wt.% ZrO2 across a wide compositional range. The saturating phases in the Cl-bearing melts are the same as those of the F-bearing melts and the transition from ZrO 2 to zircon occurs at the same composition. The positive slope of the wadeite saturation curve on XZrO2-XSiO2 plots for the halogen-free melts suggests that increasing SiO2 activity increases the solubility of wadeite.
Peralkaline Ti,Zr-bearing sodium aluminosilicate glasses have been analyzed by Raman spectroscopy to determine the effect of Cl on glass structure. The spectra of the Ti-bearing glasses show a significant difference between the Cl-free and the Cl-bearing composition. The Cl-free glass spectrum contains a strong, asymmetric peak at 900 cm--1 which is associated with Ti in five-fold coordination. This peak is shifted to higher frequency and becomes more symmetric with the addition of 0.3 wt.% Cl. Deconvolution of the high-frequency waveband suggests that differences between spectra result from the contribution of a peak at 945 cm--1. This peak is believed to be the result of Ti-O vibrations in fully-polymerized titanate tetrahedra. It is proposed that the addition of Cl destabilizes [5] Ti in favour of tetrahedral coordination as a result of competition between Cl and titanate groups for alkalis.
23Na NMR MAS analyses of a suite of Na-aluminosilicate glasses with Na/Al = 2 and varying SiO2 content has revealed a trend toward more negative chemical shift (greater shielding of the nucleus) as the glass structure becomes more polymerized, i.e. the average number of non-bridging oxygen atoms per tetrahedron (NBO/T) decreases. This trend is observed only for glasses with NBO/T ≤ 0.3. For more polymerized glasses no change in chemical shift is measured. (Abstract shortened by UMI.)
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Lewin, Kathryn. "I.C.P analytical techniques applied to the hydrogeochemistry of the southern Lincolnshire Limestone aquifer." Thesis, Royal Holloway, University of London, 1988. http://repository.royalholloway.ac.uk/items/67aecf23-a0ad-4e4e-88f9-f5545b85a700/1/.

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The hydrogeochemistry of the southern Lincolnshire Limestone is investigated employing inductively coupled plasma-optical emission spectrometry (ICP-OES) as the primary analytical technique. Two simultaneous, multi-element instruments were used. The principles of the technique and comparisons of the hardware, operating conditions and routine sample preparation methods are outlined and realistic levels of precision and detection limits evaluated. The range of determinations in the groundwaters was extended by the development of novel sample treatment techniques including the determination of dissolved sulphide down to the 1 level using a gas-liquid separator, and the determination of rare earth elements in groundwater evaporation residues. The methods were applied to the analysis of groundwaters and rocks of the Lincolnshire Limestone in southern Lincolnshire. The geology, hydrogeology and hydrochemistry of the aquifer are reviewed and the sample collection methods described, stressing the precautions taken to avoid contamination. The Lincolnshire Limestone is an aquifer of considerable heterogeneity, argillaceous limestones are intercalated with pure oolites and it is confined by predominantly clastic formations. The major element chemistry of the groundwaters follow a down-dip trend between calcium-bicarbonate-sulphate waters near outcrop and saline, non-potable waters in the east. The groundwaters are sub-divided into zones based on the processes of calcite dissolution, ion exchange and the mixing of recharge and saline interstitial waters. Minor and trace element behaviour is controlled by a combination of oxidation-reduction reactions, adsorption on clay minerals and organic matter, mineral solubilities, complex formation andgroundwater pH. Ultimately the low levels of most trace metals are limited by their low abundance in the limestone. Temporal hydrochemical trends are identified, and the influence of man, with reference to the down-gradient migration of agrichemical pollutants (e.g. nitrates) is assessed. Fluctuations in the movement of the potable/saline water interface are noted and theories on the origin of the saline waters reviewed.
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Engström, Emma. "Fractionation of the stable silicon isotopes : analytical method developments and selected applications in geochemistry." Licentiate thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18719.

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During the last few decades, variations in the 'natural' isotopic abundances of stable elements (termed 'fractionation') have received considerable interest from the scientific community. Though analytical methods and techniques for the measurement of isotopic abundances with adequate figures of merit have been available for light elements (e.g. B, C, N and O) for some time, and the wealth of data produced has secured maturity status for such applications, relatively modest progress in fractionation studies devoted to high-mass elements has been made until recently, mainly because of constraints of the available analytical techniques. The situation has changed drastically with the advent of multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS), with the number of reports about natural fractionation of Fe, Cu, Zn, Mo, Cd, Sn increasing exponentially during the recent years. In spite of the high Si abundance in nature and the importance of the element in many areas of the Earth sciences (focusing on e.g. weathering, the global Si cycle, paleoclimate studies, paleoceanography, and biological uptake), the available information on Si isotope fractionation remains rather limited due to the laborious and hazardous chemical purification procedures associated with the analyses. The focus of this thesis was the development of analytical methods for the precise and accurate measurements of Si isotope ratios, which is an absolute requirement for meaningful fractionation studies, in various matrices. This work involved detailed studies on sample preparation (including matrix separation) and refining the measurement protocol by using high resolution MC-ICP-MS. In the former stages, quantitative analyte recovery, thorough control of contamination levels and purification efficiency were the major targets, while severe spectral interferences and the need for adequate instrumental mass bias corrections challenged the latter. The performance of the method was tested in the first inter- laboratory performance assessment study of its kind with good results. As limited examples of applications, studies on Si isotope fractionation in aqueous, plant and humus samples were performed utilizing methods developed. The efficient analyte separation, high-resolution capability of the instrument, quantitative Si recovery and accurate mass bias correction using Mg as internal standard, allowed the determination of the Si isotopic composition of natural waters and biological samples with long-term reproducibility, expressed as twice the standard deviation (2σ), equal to or less than 0.10‰ for δ29Si and 0.25‰ for δ30Si. Furthermore, the presence of a challenging spectral interference on 29Si originating from 28SiH+ was revealed during this study, indicating that instrumental resolution in excess of 3500 is required for interference-free Si isotopic analyses. However, despite complete removal of N-, O-, and C-containing interferences appearing on the high-mass side of the Si isotopes, it was found that exact matching of both the acid matrix and the Si concentration are mandatory due to tailing from the abundant 14N16O+ interference on 30Si. This thesis also includes results from the first study of the Si isotopic homogeneity of major biomass components from a defined area in Northern Sweden covered by boreal forest. Since the potential impact of vegetation on the terrestrial biogeochemical cycle has attracted considerable interest, thorough characterization of the Si isotopic composition of the biomass potentially allows the utilization of this isotope system in the assessment of the relative contributions of biogenic and mineral silica in plants, soil solutions and natural waters (including fresh-, brackish- and marine waters). Isotopic analyses of the biological materials yielded a surprisingly homogenous silicon isotopic composition (relative to the NBS28 Si reference material), expressed as δ29Si (2σ), ranging from (- 0.14 ± 0.05)‰ to (0.13 ± 0.04)‰ Furthermore, elemental and isotopic analysis of local airborne particulate matter suggests that vegetation also accumulates silica via incorporation of exogenous Si containing primary and secondary minerals (in addition to root uptake of non-ionic silicic acid), a fact that has been neglected in previously published studies. This strongly indicates that the presence of potential surface contributions must be considered during in situ silicon uptake studies

Godkänd; 2007; 20071011 (ysko)

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Robson, William. "The separation of the polar constituents of petroleum." Thesis, University of Plymouth, 2018. http://hdl.handle.net/10026.1/12226.

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Identification of the heteroatom (nitrogen, sulphur, and oxygen; NSO)-containing compounds of petroleum is of key importance when considering industrial and environmental issues associated with crude oil production. The inherent molecular complexity of petroleum is such that detailed compositional investigations must ideally be preceded by some form of pre-fractionation. However, the more commonly performed methods of crude oil fractionation are often insufficient in the extent to which they separate oils, not allowing defined “molecular” fractions to be obtained and thus hindering more detailed investigations. The following work therefore focused on the development of chromatographic methods to aid in the characterisation of NSO compounds present within crude oils. A novel solid phase extraction (SPE) procedure was developed utilising both ion exchange and adsorption chromatography. The method enabled fractions broadly defined as ‘saturated’ hydrocarbons; ‘aromatic’ hydrocarbons; basic nitrogen compounds; naphthenic acids; phenols and other oxygen-containing species; carbazoles; sulfoxides; and thiophenes, to be isolated reproducibly and quantitatively from relatively small crude oil samples (~ 0.5 g). Assessment of method selectivity with a suite of ‘model’ compounds showed that the resulting fractions were quite well defined, with classes of ‘model’ compounds being isolated within discrete fractions. Application to five crude oils of widely varying properties and origins, such as API gravity (12.1−38.3°), demonstrated the potential for the wide-ranging use of the method. Sample recoveries were high (77−98%) with simple evaporative losses accounting for the majority of sample loss. Repeatability was also high, demonstrated by triplicate analyses of ‘model’ compound mixtures, oils spiked with ‘model’ compounds and oils alone. Subsequent, more detailed, analysis of the fractions using multidimensional gas chromatography-mass spectrometry (GC×GC-MS) and liquid chromatography-highresolution accurate mass-mass spectrometry (LC-HRAM-MS) showed the advantages of the new isolation method. For example, alkylated series (C1-5) of quinolines, carbazoles, fluorenones, dibenzothiophenes and xanthones were identified within their predicted fractions. Furthermore, comparison of mass spectra obtained from GC×GC-MS analyses with reference spectra resulted in the tentative identification of compounds hitherto not previously reported in crude oils, again illustrating the advantage of the isolation method. Novel series of thioxanthones, tocopherols (E vitamins) and terpenoidal sulfoxides and ketones were assigned within the isolated fractions. Following the successful evaluation of the method, the scheme was subsequently employed to investigate the effects of changing geochemical parameters on the composition of isolated NSO-containing compounds. For example, studies of NSO fractions from series of crude oils at different stages of thermal maturity or of biodegradation, led to the identification of a number of potential new molecular markers within the basic-nitrogen and ketone fractions. This work shows clear potential for the developed NSO isolation method to be used in further compositional studies as a tool to aid in geochemical investigations.
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Sulley, Addo Tahiru. "EFFECT OF SAMPLE MISCUT ON DISSOLUTION KINETICS OF CALCITE (104) CLEAVAGE SURFACES." Wright State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=wright1385390795.

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Saad, Emily M. "Elemental, isotopic, and particle fingerprinting of dust sources in the San Francisco Peaks, Arizona." Thesis, Northern Arizona University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1537808.

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This study examines dust in the San Francisco Peaks located on the Colorado Plateau of northern Arizona, USA. Sample dusts were collected from potholes on Humphreys Peak (35o20'22"N, 111o41'42"W) in order to detect exogenous material and constrain dust sources. Bulk dust and local rock were characterized by Sr and Nd isotope fingerprints as well as elemental composition. Sr and Nd isotope ratios were analyzed by MC-ICP-MS; trace element concentrations were analyzed by Q-ICP-MS. Mineralogical analyses were also performed in an effort to characterize individual particles. Mineral grains were separated from bulk samples by conventional heavy mineral separations. The heavy fraction was imaged and characterized by SEM/EDX.

Both the isotopic and elemental bulk analyses indicated that the dust composition reflected not only a weathered local rock material but also exogenous material of continental crust origin. The dust was characterized by an average 87Sr/86Sr ratio of 0.7095 ± 0.0010 and an average ε Nd of -7.13 ± 0.97. These signatures systematically and significantly deviate from the isotope fingerprints of the local rock, which exhibited an average 87Sr/86Sr ratio of 0.7037 ± 0.0002 and an average εNd of -2.43 ± 0.43. The negative correlation between εNd and 87Sr/86Sr is consistent with two component mixing of rock evolved from a mantle source and continental crust derived material.

Several geologically relevant trace elements were found to have significantly different average concentrations in the dust than in the local rock samples. Furthermore, the elemental abundances of most elements in the dust samples suggested a mixture of local rock and continental crust end members with the exception of Pb, which indicated an anthropogenic influence exhibiting enrichment factors between 1.65 and 7.44.

The mineral analysis provided further evidence of exogenous material and offered the opportunity for further constraint of the sources. Zircons were identified only in the dust and will be analyzed for U-Pb signatures in order to characterize the isotopic fingerprint of individual mineral grains, which will better distinguish external sources. Diatom skeletons were also found exclusively in the dust samples and offer a unique opportunity to more specifically implicate sources through a diatom assemblage.

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Mojzsis, Stephen J. "Ancient sediments of Earth and Mars /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9823711.

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Van, Achterbergh Esmé. "The development of the national accelerator centre proton microprobe as an analytical tool in geochemistry." Master's thesis, University of Cape Town, 1995. http://hdl.handle.net/11427/22046.

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Bibliography: pages 94-99.
This thesis describes work performed to establish and demonstrate a quantitative trace element microanalysis technique for geological material using protons accelerated by the Van de Graaff Accelerator at the National Accelerator Centre (NAC) in Faure near Cape Town. The method relies on the analysis of Proton Induced X-ray Emission (PIXE) spectra, interpreted with the help of the GeoPIXE software package. The use of the Si(Li) energy dispersive detector provides simultaneous multi-element detection at the parts-per-million (ppm) level, and a scanning beam facility permits trace element distributions to be studied at these levels. The calibration of the detector efficiency and the thicknesses of selectable X-ray attenuating filters was performed using pure elemental samples. This involved the accurate determination of the target to detector distance, the thickness of the active volume of the Si(Li) detector crystal, the thicknesses of all the absorbing layers between the sample and the detector crystal, and the assessment of the effects of incomplete charge collection in the detector.
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Books on the topic "Analytical geochemistry"

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W, Rowe Marvin, and Hyman Marian, eds. Advances in analytical geochemistry. Greenwich, Co: Jai Press, 1993.

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1945-, Riddle Chris, ed. Analysis of geological materials. New York: M. Dekker, 1993.

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Detra, D. E. A modification of the U.S. Geological Survey one-sixth order semiquantitative spectrographic method for the analysis of geologic materials that improves limits of determination of some volatile to moderately volatile elements. Denver, CO: U.S. Geological Survey, 1988.

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Detra, D. E. A modification of the U.S. Geological Survey one-sixth order semiquantitative spectrographic method for the analysis of geologic materials that improves limits of determination of some volatile to moderately volatile elements. Washington, DC: U.S. Dept. of the Interior, 1988.

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Ptit︠s︡yn, A. B. Teoreticheskai︠a︡ geokhimii︠a︡. Novosibirsk: Akademicheskoe izdatelʹstvo "Geo", 2006.

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Stanley, Clifford R. Pearce element ratio analysis: Applications in lithogeochemical exploration. Vancouver, B.C: Dept. of Geological Sciences, University of British Columbia, 1993.

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F, Pitard Francis, ed. Applied geochemical analysis. New York: Wiley, 1986.

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Russia?) Vsesoi͡uznyĭ simpozium po kinetike i dinamike geokhimicheskikh prot͡sessov (5th 1989 Chernogolovka. V Vsesoi͡uznyĭ simpozium po kinetike i dinamike geokhimicheskikh prot͡sessov, 23-25 mai͡a 1989 goda: Tezisy dokladov. Chernogolovka: OIKhF AN SSSR, 1989.

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A, Baedecker Philip, ed. Methods for geochemical analysis. [Washington]: U.S. G.P.O., 1987.

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F, Barabanov V., and Leningradskiĭ gosudarstvennyĭ universitet, eds. Sovremennye fizicheskie metody v geokhimii. Leningrad: Izd-vo Leningradskogo universiteta, 1990.

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Book chapters on the topic "Analytical geochemistry"

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Heuser, Alexander, Anne-Désirée Schmitt, Nikolaus Gussone, and Frank Wombacher. "Analytical Methods." In Calcium Stable Isotope Geochemistry, 23–73. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-540-68953-9_2.

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Waples, Douglas W. "Analytical Techniques." In Geochemistry in Petroleum Exploration, 73–91. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5436-6_7.

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Johnson, Clark, Brian Beard, and Stefan Weyer. "Analytical Methods." In Iron Geochemistry: An Isotopic Perspective, 17–38. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-33828-2_2.

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Schwarzbauer, Jan, and Branimir Jovančićević. "Analytical Quality Control." In Introduction to Analytical Methods in Organic Geochemistry, 129–34. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38592-7_6.

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Hanley, Jacob J., and Kenneth T. Koga. "Halogens in Terrestrial and Cosmic Geochemical Systems: Abundances, Geochemical Behaviors, and Analytical Methods." In Springer Geochemistry, 21–121. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-61667-4_2.

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Schwarzbauer, Jan, and Branimir Jovančićević. "Principal Analytical Procedures in Organic Geochemistry." In Introduction to Analytical Methods in Organic Geochemistry, 135–45. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-38592-7_7.

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Tomascak, Paul B., Tomáš Magna, and Ralf Dohmen. "Methodology of Lithium Analytical Chemistry and Isotopic Measurements." In Advances in Lithium Isotope Geochemistry, 5–18. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-01430-2_2.

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Albarède, Francis, and Brian Beard. "4. Analytical Methods for Non-Traditional Isotopes." In Geochemistry of Non-Traditional Stable Isotopes, edited by Clark M. Johnson, Brian L. Beard, and Francis Albarède, 113–52. Berlin, Boston: De Gruyter, 2004. http://dx.doi.org/10.1515/9781501509360-007.

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Dementiev, V. A. "Statistical Methods in Analytical Chemistry." In Advances in Geochemistry, Analytical Chemistry, and Planetary Sciences, 563–72. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-09883-3_37.

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Ostrom, Nathaniel E., and Peggy H. Ostrom. "The Isotopomers of Nitrous Oxide: Analytical Considerations and Application to Resolution of Microbial Production Pathways." In Advances in Isotope Geochemistry, 453–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10637-8_23.

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Conference papers on the topic "Analytical geochemistry"

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Sudnik, M., K. W. R. Taylor, and M. Seed. "Introducing Analytical Result Database (Ardb): Intuitive Databse Management, Data Visualisation and Quality Control." In 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902780.

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Donahoe, Rona J. "ANALYTICAL GEOCHEMISTRY – AN EXPERIENTIAL LEARNING COURSE AHEAD OF ITS TIME?" In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-287778.

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Haeseler, F., B. Colnet, D. Couteyen-Carpaye, T. Chugunova, and E. Tawile. "Total Organic Carbon: from analytical data acquisition to numerical 3D vision." In Second EAGE Workshop on Geochemistry in Petroleum Operations and Production. Netherlands: EAGE Publications BV, 2018. http://dx.doi.org/10.3997/2214-4609.201803100.

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Arias, N. Penalva, J. Villanueva, G. Muñoa, C. Laguna, P. Rivas, M. Raja, and A. Rosell-Melé. "An Optimized Analytical Method to Quantify Pyrogenic Carbon Using Benzene Polycarboxylic Acids in Marine and Lacustrine Samples." In 30th International Meeting on Organic Geochemistry (IMOG 2021). European Association of Geoscientists & Engineers, 2021. http://dx.doi.org/10.3997/2214-4609.202134177.

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Knapp, Jonathan, David McKnight, Andrew Mudford, and Chad Ostrander. "An overview of Hitachi’s new data management and analytical modeling platform for geochemistry and automated mineralogy data." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.12679.

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Vike, Haylee, and Liane Stevens. "COMPARISON OF ANALYTICAL METHODS FOR HXRF GEOCHEMISTRY OF THE PACKSADDLE SCHIST AND TOWN MOUNTAIN GRANITE, LLANO UPLIFT, TEXAS." In South-Central Section - 56th Annual Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022sc-374108.

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Mirzayev, Mammad, Sean McCoy, Joanna Cooper, Don Lawton, and Liangliang Jiang. "Exploring Pressure Interactions Between Geological CO2 Storage Projects in Alberta Using Analytical and Numerical Simulations." In SPE Canadian Energy Technology Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/218038-ms.

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Abstract Deep saline aquifers are considered as attractive hosts for geological CO2 storage (GCS). The Western Canada Sedimentary Basin (WCSB) comprises numerous saline aquifers. Depending on formation geochemistry, in-situ conditions, and petrophysical properties, each formation will have different storage capacity and efficiency. There are currently 25 proposed projects in the province of Alberta that, if they were all approved with pore space tenure, would inject large volumes of CO2 at relatively large rates into the WCSB. The goal of this study is to present characterizations of potential storage formations and examine the potential for interactions between proposed projects in proximity. We use numerical and analytical simulation to assess the evolution and interaction of pressure fields from proposed projects over time in the Wabamun Area CO2 Sequestration Project (WASP) region and infer how this affects cumulative storage capacity in the target formations. We compare the result from simple, relatively easy-to-use analytical tools against numerical simulation results to determine whether existing screening tools could accurately capture potential interactions between proximal projects. The results reveal that with increasing length of injection years, the radial extent of the CO2 pressure distribution increases as well. The analytical solution cannot accurately capture formation compressibility and variation in fluid properties, which leads to deviations from the simulated values. Nonetheless, these tools could serve as a quick method to identify areas of concern, and both can provide useful information about the likely extent of the pressure plume in a GCS project.
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Hekimoglu, Kemal C., Filippo Casali, and Antonio Bonetti. "ADDRESSING RESERVOIR HETEROGENEITY BY INTEGRATION OF GEOCHEMISTRY AND PETROPHYSICAL LOGS IN CARBONATE PROSPECTS." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0004.

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Formation evaluation challenges in highly fractured, stacked reservoirs with multiple source rocks and structural complexities that have complicated charging histories are common in the Middle East. Finding additional pay zones, understanding the contribution of individual oils to the overall production, or evaluating the compartmentalization within the reservoir by resolving the heterogeneity of the reservoir rocks are to name but a few. This work tries to understand the challenges posed by the subsurface complexities and attempts to find answers through physical evidence, using both onsite data acquired during drilling and data gathered through organic and inorganic laboratory measurements. Formation evaluation challenges are mostly attributed to formation heterogeneity, which we have aimed to address through the integration of petrophysical and geochemical data within this work. This project encompasses the integration of petrophysical and geochemical analyses of the reservoir rocks. Geochemical data have provided the ability to make maturity, richness, and other character interpretations and will be combined with important petrophysical properties of the carbonate intervals to predict reservoir heterogeneities. These interpretations could support perforation interval selection on subsequent wells in the field through the understanding of the mobility of the oils and, ultimately, production allocation. Best practices for thermally extracting hydrocarbons from drill cuttings, quality-controlling advanced mud gas data, and interpretive processes together with the entire workflow followed will also be elaborated. The analysis has the objectives of establishing results to support completion decisions through understanding reservoir quality, reservoir fluid communication, and compartmentalization specific to the basin studied. The petrophysical reservoir properties such as hydrocarbons in place, mobility of the oils, porosity, permeability, fracture intensity, geomechanical properties (brittle vs. ductile), and production allocation will be tied in to geochemical analyses to this extent. The focal point of the work is ascertaining and characterizing both the reservoir properties using a number of integrated analytical techniques on DST oil samples of 12 offset wells and rock cuttings, as well as petrophysical logs and advanced mud gas data. The concepts, tools, and methods that have been demonstrated for evaluating crude oils, natural gases, and petrophysical characteristics of the rocks are applicable to many problems in petroleum production and field development as well as exploration efforts.
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Oshaish, Ali, Sami Alnuaim, Amjed Hassan, and Mohamed Mahmoud. "A New Inflow Performance Relationship for Shale Gas Reservoirs Using Well Logs and Geochemistry Data." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/216374-ms.

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Abstract Exploiting the unconventional oil and gas resources has been sparked recently. Evaluating the well productivity in shale formations based on bare test rates is challenging and requires extensive work of simulation and extended periods of well testing. This work introduces a new, simple, and efficient IPR model for estimating the production performance from unconventional shale reservoirs at early stages of drilling and production. The implementation of this IPR model depends mainly on the integration between well logs and geochemical pyrolysis data to estimate the hydrocarbon potential in the reservoir. The proposed IPR model was applied using real data from shale gas reservoirs. In this work, the well logs were initially analyzed to stratify the pay zone and to obtain the gas saturation. Then, an analytical correlation was derived to convert the organic richness indicator of the free and adsorbed gas (S1) to an incremental porosity and gas saturation values. After that, the final porosity and saturation profiles, along with the other petrophysical data were incorporated into a fractured reservoir simulation model using a commercial reservoir simulator (CMG). Then, the production outcomes of the simulation model were collected to be used in generating the IPR model as a function of the petrophysical and the pyrolysis data. The results showed an excellent correlation between well performance, logging, and the pyrolysis data. The developed IPR formula was found in the form of famous Fitkovich’s back pressure model which fitted the simulator generated production data at different reservoir pressures with R2 value of 0.99 for different reservoir pressures. Moreover, the exponent (n) in Fetkovich’s IPR model which ranges from 0.5 to 1 in conventional reservoirs, was found to be greater than 1 in unconventional shale gas reservoirs. This finding was examined in a case study using real production data. On the other hand, the log C value, which is involved in the y-intercept of the logarithmic transformation of Fetkovich IPR, was seen to be dependent on reservoir’s characteristics and geochemical properties such as bed thickness, gas saturation, porosity, and organic production index (PI). Overall, the study aims to develop a simple IPR model to estimate well productivity in shale gas reservoirs based on the available logging and pyrolysis data during the early stages of drilling and completion. Moreover, the proposed model can be integrated with Logging While Drilling (LWD) operation for real-time estimation of well productivity. For the first time, the geochemical properties are integrated with the logging data to provide an IPR model that considers the free and adsorbed gas in the shale formations.
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Perry, Stephanie E., J. Alex Zumberge, and Kai Cheng. "IMPACTS AND LESSONS LEARNED FROM AN APPLIED CASE STUDY IN THE WILLISTON, UINTA AND DJ BASINS UTILIZING OPEN VERSUS CLOSED RETORT QUANTIFICATION." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0031.

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Subsurface characterization of fluid volumes is typically constrained and validated by core analytical fluid saturation measurement techniques (example Dean-Stark or Open Retort methodology). As production in resource plays has progressed over time, it has been noted that many of these methods have a large error when compared to production data. A large source of the error seems to be that water saturations in tight rocks have been consistently underestimated in the traditional laboratory measurement techniques. Operators need improved fluid saturation measurements to better constrain their log-based oil-in-place estimates and forward-looking production trends. The overall goal of this study is to test a new laboratory workflow for fluid saturation quantification. Recent advancements have led to an innovative methodology where a closed retort laboratory technique is applied to samples from lithological rock types in the Williston, Uinta and Denever-Julesburg (DJ) basins. This new technique is specifically designed to better quantify and validate water measurements throughout the tight rock analysis process, as well as improved oil recovery and built-in prediction. A comparison of standard crushed rock analysis employing Dean-Stark saturation methods is compared to the closed retort results and observations discussed. Results will also be compared against additional laboratory methods that validate the results such as geochemistry and nuclear magnetic resonance. Finally, open-hole wireline logs will be utilized to quantify the impact on total water saturation and the oil-in place estimates based on the improved accuracy of the closed retort technique.
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Reports on the topic "Analytical geochemistry"

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Hall, G. E. M. Analytical Methods Used in Exploration Geochemistry. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132396.

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Hall, G. E. M., K. N. De Silva, J. C. Pelchat, and J. E. Vaive. Advances in Analytical Methods Based On Atomic Absorption Spectrometry in the Geochemistry Laboratories of the Geological Survey of Canada. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/122479.

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Beckett-Brown, C. E., and J. A. Kidder. TGI Activity Report: geochemical footprint of the undisturbed Casino porphyry Cu-Mo-Ag-Au deposit, Yukon (NTS 115 J/10 and 115 J/15). Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331831.

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A detailed geochemical sampling survey at the remote Casino porphyry Cu-Mo-Ag-Au deposit in west central Yukon is described. This new sampling follows-up on previous sampling around the deposit by the Geological Survey of Canada (GSC) in 2017. In late August-early September of 2022, a variety of sample media were collected, including bulk stream sediments, fine-grained stream sediment, pebbles, stream and groundwaters, and vegetation at 27 sites. Sampling was conducted to establish a geochemical baseline around an undisturbed, unglaciated porphyry Cu-Mo-Ag-Au deposit and to demonstrate the applicability of multi-media surficial geochemical methods for exploration in terrains with little to no bedrock outcrop. Bulk stream sediment samples will be processed to recover 0.25-2.0 mm indicator minerals, which may be subjected to further analyses (e.g., electron microprobe and LA-ICP-MS). Fine-grained sediment samples will be submitted for routine geochemical analysis to highlight the proximal geochemistry and to better understand the signal decay downstream from the deposit. Water samples will be subjected to a variety of analytical methods including trace and ultra-trace geochemistry, as well as traditional (?18O, ?2H, ?34S(SO4), and ?18O(SO4)) and non-traditional (?98Mo and ?65Cu) stable isotope analyses. The purpose of this open file is to report fieldwork activities conducted by the GSC as part of the targeted geoscience initiative (TGI-6) program. The objective of this study is to further develop research concepts conceived since 2017 and provide critical knowledge advancement for the exploration of porphyry Cu-Mo-Au deposits.
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Bourdeau, J. E., and R. D. Dyer. Regional-scale lake-sediment sampling and analytical protocols with examples from the Geological Survey of Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331911.

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Regional-scale lake sediment surveys have been successfully used since the 1970s as a means for reconnaissance geochemical exploration. Lake sediment sampling is typically performed in areas with a lack of streams and an overabundance of small-sized (=5 km across) lakes. Lake sediments are known to have major, minor and trace element concentrations that reflect the local geology. Overall, lake sediment surveys are planned and conducted following four distinct stages: 1) background research, 2) orientation survey, 3) regional survey, and 4) detailed survey. At the Geological Survey of Canada, samples are usually collected from a helicopter with floats. Sample density ranges from 1 sample per 6 - 13 km2. Samples are collected from the centre of the lake using a gravity torpedo sampler which corresponds to a hollow-pipe, butterfly bottom-valved sampler attached by a rope to the helicopter. Collected sediment samples are then placed in labelled bags and left to air dry. Detailed field notes and additional samples (field duplicates), for the purpose of an adequate quality assurance and quality control program, are also taken. Samples are then milled and sent to analytical laboratories for element determination. Commonly used analytical methods include: X-ray fluorescence (XRF), atomic absorption spectroscopy (AAS), inductively coupled plasma-atomic emission spectrometry (ICP-AES) and -mass spectrometry (ICP-MS), instrumental neutron activation analysis (INAA), and/or determination of volatile compounds and organic carbon using Loss on Ignition (LOI). Analytical data is first evaluated for quality (contamination, accuracy and precision). Numerous options for the analysis of lake sediment data exist, ranging from simple basic element concentration maps and statistical graphical displays together with summary statistics, to employing multivariate methodologies, and, more recently, using machine learning algorithms. By adopting the set of guidelines and examples presented in this manual, scientific researchers, exploration geologists, geochemists and citizen scientists will be able to directly compare lake sediment datasets from anywhere in Canada.
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Interpretation of the regional geochemistry of the Tonopah 1 degree by 2 degrees quadrangle, Nevada, based on analytical results from stream-sediment and nonmagnetic heavy-mineral-concentrate samples. US Geological Survey, 1988. http://dx.doi.org/10.3133/b1849.

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