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Artículos de revistas sobre el tema "Mineralogic analysis"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 12 de febrero de 2022

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1

Yernault, JC, G. Kuhn, P. Dumortier, P. Rocmans, P. Ketelbant, and P. De Vuyst. ""Solid" mediastinal bronchogenic cyst: mineralogic analysis." American Journal of Roentgenology 146, no. 1 (1986): 73–74. http://dx.doi.org/10.2214/ajr.146.1.73.

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2

Halley, Scott. "Mapping Magmatic and Hydrothermal Processes from Routine Exploration Geochemical Analyses." Economic Geology 115, no. 3 (2020): 489–503. http://dx.doi.org/10.5382/econgeo.4722.

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Abstract Analytical methods used by commercial assay laboratories have improved enormously in recent years. Inductively coupled plasma-atomic emission spectroscopy and inductively coupled plasma-mass spectrometry methods now report analyses for half of the periodic table with exceptional detection limits and precision. It is becoming commonplace for mining companies to use such methods routinely for the analysis of drill samples throughout mineral deposits. Improvements in software and computing power now allow rapid interrogation of upward of 100,000 assay samples. Geochemical analyses are qu

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3

Graham, Shaun, and Nynke Keulen. "Nanoscale Automated Quantitative Mineralogy: A 200-nm Quantitative Mineralogy Assessment of Fault Gouge Using Mineralogic." Minerals 9, no. 11 (2019): 665. http://dx.doi.org/10.3390/min9110665.

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Effective energy-dispersive X-ray spectroscopy analysis (EDX) with a scanning electron microscope of fine-grained materials (submicrometer scale) is hampered by the interaction volume of the primary electron beam, whose diameter usually is larger than the size of the grains to be analyzed. Therefore, mixed signals of the chemistry of individual grains are expected, and EDX is commonly not applied to such fine-grained material. However, by applying a low primary beam acceleration voltage, combined with a large aperture, and a dedicated mineral classification in the mineral library employed by t

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4

Rey, F., C. Boutin, J. R. Viallat, et al. "Environmental Asbestotic Pleural Plaques in Northeast Corsica: Correlations with Airborne and Pleural Mineralogic Analysis." Environmental Health Perspectives 102 (October 1994): 251. http://dx.doi.org/10.2307/3432097.

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5

Rey, F., C. Boutin, J. R. Viallat, et al. "Environmental Asbestotic Pleural Plaques in Northeast Corsica: Correlations with Airborne and Pleural Mineralogic Analysis." Environmental Health Perspectives 102, suppl 5 (1994): 251–52. http://dx.doi.org/10.1289/ehp.94102s5251.

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6

Cui, Tao. "Research Progress of Bauxite in WZD Area, Northern Guizhou, China." Advanced Materials Research 989-994 (July 2014): 1392–95. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.1392.

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This paper has a comprehensive analysis on the bauxite in Wuchuan-Zheng, an-Daozhen (WZD) area, northern Guizhou, China through synthesize former research. The understanding of mineralogic, petrologic and geochemical characteristics is deep, and sedimentary environment, parent rock and mineralization process have been defined. Main questions need further research as follow: minerogenetic epoch; migration mechanism of elements; genesis of rare earth mineral.

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7

Torres-Ceron, Darwin Augusto, Carlos Daniel Acosta-Medina, and Elisabeth Restrepo-Parra. "Geothermal and Mineralogic Analysis of Hot Springs in the Puracé-La Mina Sector in Cauca, Colombia." Geofluids 2019 (February 27, 2019): 1–20. http://dx.doi.org/10.1155/2019/3191454.

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Thermal waters are natural resources of great value to geothermal sciences, the tourism industry, and health. In this work, geochemical classification of physicochemical results of 17 sources at the Puracé-La Mina (Cauca, Colombia) sector was implemented in order to strengthen and determine their potential applications and enhance the continental tourism in Colombia. The analyzed parameters were developed following the Standard Methods 22nd edition, at Universidad Nacional de Colombia-Manizales. According to the results obtained by means of a geochemical classification, it was found that most

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8

Utami, Dwi Amanda, Lars Reuning, Maximillian Hallenberger, and Sri Yudawati Cahyarini. "The mineralogic and isotopic fingerprint of equatorial carbonates: Kepulauan Seribu, Indonesia." International Journal of Earth Sciences 110, no. 2 (2021): 513–34. http://dx.doi.org/10.1007/s00531-020-01968-9.

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AbstractKepulauan Seribu is an isolated patch reef complex situated in the Java Sea (Indonesia) and is a typical example for a humid, equatorial carbonate system. We investigate the mineralogical and isotopic fingerprint of Panggang, one of the reef platforms of Kepulauan Seribu, to evaluate differences to other carbonate systems, using isotope in combination with XRD and SEM analysis. A characteristic property of shallow water (< 20 m) sediments from Kepulauan Seribu is their increased LMC content (~ 10%) derived from some genera of rotaliid foraminifers and bivalves. The relative abundanc

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9

Torres-Ceron, Darwin Augusto, Carlos Daniel Acosta-Medina, and Elisabeth Restrepo-Parra. "Physical-Chemical Characterization and Mineralogic Analysis of Hydrothermal Systems Located in the Coconuco and the San Juan Sectors in Cauca, Colombia." Geofluids 2019 (May 12, 2019): 1–19. http://dx.doi.org/10.1155/2019/9176925.

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Hot springs of the volcanic zones are characterized for having high sulfur content in the form of sulphate and other ions resulting from chemical reactions. Sources with these types of elements are of great interest for the tourism and geothermal industry because of their highlighted properties which include therapeutic treatments, relaxation baths, agricultural applications, and preservation of flora and fauna among others. For these reasons, research oriented to carry out the characterization of these factors is of great importance to determine the availability of places with such characteri

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10

Fortey, N. J. "Image analysis in mineralogy and petrology." Mineralogical Magazine 59, no. 395 (1995): 177–78. http://dx.doi.org/10.1180/minmag.1995.059.395.01.

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“Image analysis” refers to the general family of computational techniques which are concerned with the extracting of quantitative information from images captured in digital form. Such techniques have been in use for several years in areas such as biology and metallurgy, but have been slow to find wide use in the microscopic areas of Earth Sciences. Notable exceptions have included applications in the areas of mineral processing and sedimentary petrography.The impetus for the meeting held jointly by the Applied Mineralogy Group of the Mineralogical Society and the Geological Information Group

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11

Luo, Zeng, Qingda Su, Zhao Wang, et al. "Orbital forcing of Plio-Pleistocene climate variation in a Qaidam Basin lake based on paleomagnetic and evaporite mineralogic analysis." Palaeogeography, Palaeoclimatology, Palaeoecology 510 (December 2018): 31–39. http://dx.doi.org/10.1016/j.palaeo.2017.09.022.

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12

Bishop, Janice L. "Spectroscopic analysis of mars soil analogs-techniques for mineralogic characterization of mars and detection of organic material or carbonates." Origins of Life and Evolution of the Biosphere 26, no. 3-5 (1996): 520–21. http://dx.doi.org/10.1007/bf02459906.

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13

Rowan, Lawrence C., Alexander F. H. Goetz, and Elsa Abbott. "Analysis of Shuttle Multispectral Infrared Radiometer measurements of the western Saudi Arabian shield." GEOPHYSICS 52, no. 7 (1987): 907–23. http://dx.doi.org/10.1190/1.1442361.

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During the November 12–14, 1981, mission of the space shuttle Columbia, the Shuttle Multispectral Infrared Radiometer (SMIRR) recorded radiances in ten channels along a 100 m wide groundtrack across the western Saudi Arabian shield. The ten channels are located in the 0.5 to 2.4 μm region, with five positioned between 2.0 and 2.40 μm for measuring absorption features that are diagnostic of OH‐bearing and [Formula: see text] minerals. This exceptionally well exposed area consists of late Proterozoic metamorphic, intermediate to silicic intrusive, and interlayered clastic sedimentary and interme

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14

Casetou-Gustafson, Sophie, Cecilia Akselsson, Stephen Hillier, and Bengt A. Olsson. "The importance of mineral determinations to PROFILE base cation weathering release rates: a case study." Biogeosciences 16, no. 9 (2019): 1903–20. http://dx.doi.org/10.5194/bg-16-1903-2019.

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Abstract. Accurate estimates of base cation weathering rates in forest soils are crucial for policy decisions on sustainable biomass harvest levels and for calculations of critical loads of acidity. The PROFILE model is one of the most frequently used methods to quantify weathering rates, where the quantitative mineralogical input has often been calculated by the A2M (“Analysis to Mineralogy”) program based solely on geochemical data. The aim of this study was to investigate how uncertainties in quantitative mineralogy, originating from modeled mineral abundance and assumed stoichiometry, infl

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15

Cécile, Chemarin, Sylvie Vuillermoz-Blas, Eric Laennec, et al. "55: Reduction of under-reporting of occupational lung cancer (OLC) or environmental lung cancer (ELC) by lung tissue optical mineralogic analysis (LTOMA)." Bulletin du Cancer 97, no. 1 (2010): S48—S49. http://dx.doi.org/10.1016/s0007-4551(15)31148-6.

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16

Al-Baldawi, Buraq Adnan. "Evaluation of Petrophysical Properties Using Well Logs of Yamama Formation in Abu Amood Oil Field, Southern Iraq." Iraqi Geological Journal 54, no. 1E (2021): 67–77. http://dx.doi.org/10.46717/igj.54.1e.6ms-2021-05-27.

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The petrophysical analysis is very important to understand the factors controlling the reservoir quality and production wells. In the current study, the petrophysical evaluation was accomplished to hydrocarbon assessment based on well log data of four wells of Early Cretaceous carbonate reservoir Yamama Formation in Abu-Amood oil field in the southern part of Iraq. The available well logs such as sonic, density, neutron, gamma ray, SP, and resistivity logs for wells AAm-1, AAm-2, AAm-3, and AAm-5 were used to delineate the reservoir characteristics of the Yamama Formation. Lithologic and miner

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17

Williams, Amy J., Jennifer Eigenbrode, Melissa Floyd, et al. "Recovery of Fatty Acids from Mineralogic Mars Analogs by TMAH Thermochemolysis for the Sample Analysis at Mars Wet Chemistry Experiment on the Curiosity Rover." Astrobiology 19, no. 4 (2019): 522–46. http://dx.doi.org/10.1089/ast.2018.1819.

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18

Kübler, B., and D. Goy-Eggenberger. "La cristallinité de l'illite revisitée: un bilan des connaissances acquises ces trente dernières années." Clay Minerals 36, no. 2 (2001): 143–57. http://dx.doi.org/10.1180/000985501750177898.

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AbstractThe main reason for the initial determinations of illite crystallinity (IC) was to support the exploration for liquid and gaseous hydrocarbons. The application in 1960 of the Weaver Sharpness Ratio to core materials of a borehole from eastern France indicated that it was not a reliable tool for identifying well-crystallized illite. This ratio was later replaced by the Full Width at Half-Maximum (FWHM), the value of which decreases regularly and consistently towards greenschist facies. The use of FWHM allowed a precise definition of the anchimetamorphic zone between the upper diagenesis

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19

Calvin, Wendy M., Nicole Lautze, Joe Moore, Donald Thomas, Eric Haskins, and Brandon P. Rasmussen. "Petrographic and spectral study of hydrothermal mineralization in drill core from Hawaii: A potential analog to alteration in the martian subsurface." American Mineralogist 105, no. 9 (2020): 1297–305. http://dx.doi.org/10.2138/am-2020-7125.

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Abstract Continuous rock core was collected for 1764 m (5786’) on the Pohakuloa Army Training base near the center of the big island of Hawaii. The core traverses basaltic lava flows from the volcano's shield-building phase, and perched aquifers and higher temperature groundwaters were encountered. The collected samples record water-rock interactions of basaltic materials in a setting that may be a model for groundwater interactions on Mars. We collected visible and infrared point spectra of materials in the lowest portion of the core, where alteration was noted to become more prominent. We id

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20

Naumko, І. M. "A THOROUGH EDITION ON THE HISTORY OF MINERALOGY IN UKRAINE." Geological Journal, no. 1 (April 16, 2021): 81–85. http://dx.doi.org/10.30836/igs.1025-6814.2021.1.225295.

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Data on the history of mineralogical research and knowledge in Ukraine from ancient times to the 90s of the XX century are concentrates in the thorough final work and the prehistory, origin, formation and comprehensive development («golden age») of mineralogy in Ukraine are characterized in varying detail. It is shown that mineralogical researches acquire systemicity from the 50s of the XX century, thanks mainly to the activities of the Lviv Geological and Ukrainian Mineralogical Societie, Lviv University and M. P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation оf the NAS of

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21

Bitay, Enikő, Irina Kacsó, Claudiu Tănăselia, et al. "Spectroscopic Characterization of Iron Slags from the Archaeological Sites of Brâncoveneşti, Călugăreni and Vătava Located on the Mureş County (Romania) Sector of the Roman Limes." Applied Sciences 10, no. 15 (2020): 5373. http://dx.doi.org/10.3390/app10155373.

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Iron slag samples unearthed from archaeological sites lying on the Eastern limes sector of Roman Dacia (the Brâncoveneşti and Călugăreni auxiliary forts and the Vătava watchtower) were studied in order to assess the probability of local iron working (smelting and smithing) during the 2nd–3rd centuries CE. Structural-mineralogic aspects revealed by PXRD analysis and FTIR spectroscopy indicate different slag types corresponding to different iron production and processing stages allowing the supposition that refining of the bloom and processing of the refined iron took place on the sites. The FTI

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22

Vincent, M., S. Vuillermoz-Blas, E. Laennec, et al. "9051 Reduction of under-reporting of occupational lung cancer (OLC) by lung tissue optical mineralogic analysis (LTOMA) associated to standardised questionnary(SQ) – about fifty-nine cases." European Journal of Cancer Supplements 7, no. 2 (2009): 520–21. http://dx.doi.org/10.1016/s1359-6349(09)71764-1.

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23

Rossi, Manuela, Rosanna Rizzi, Alessandro Vergara, et al. "Compositional variation of turquoise-group minerals from the historical collection of the Real Museo Mineralogico of the University of Naples." Mineralogical Magazine 81, no. 6 (2017): 1405–29. http://dx.doi.org/10.1180/minmag.2017.081.055.

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AbstractFive turquoise samples, belonging to the XVII century historical collection of the Real Museo Mineralogico (University of Naples Federico II), were investigated by a multi-methodological approach based on powder X-ray diffraction, electron microprobe analysis in wavelength-dispersive spectroscopy mode, backscattered electron images from scanning electron microscopy in energy-dispersive spectroscopy mode, laser ablation inductively coupled plasma mass spectrometry, Fourier transform infrared and Raman spectroscopy.The samples originate from Sinai (Egypt), Santa Fè S. Miguel (New Mexico)

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24

Kokkaliari, Maria, and Ioannis Iliopoulos. "Application of Near-Infrared Spectroscopy for the identification of rock mineralogy from Kos Island, Aegean Sea, Greece." Bulletin of the Geological Society of Greece 55, no. 1 (2020): 290. http://dx.doi.org/10.12681/bgsg.20708.

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Near-Infrared spectroscopy (NIR) is a useful tool for direct and on-site identification of rock mineralogy in spite of the difficulties arising in spectral evaluation, due to limited availability of spectral libraries at the time. Especially in the field, a functional methodology for the identification and evaluation if possible, of the geologic materials, is of interest to many researchers. However, several different parameters (such as grain size, color, mineralogy, texture, water content etc.) can affect the spectroscopic properties of the samples resulting in spectral variability. The subj

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25

Delgado, I. Palomo, M. Ortega Huertas, and P. Fenoll Hach-Ali. "The significance of clay minerals in studies of the evolution of the jurassic deposits of the Betic Cordillera, SE Spain." Clay Minerals 20, no. 1 (1985): 39–52. http://dx.doi.org/10.1180/claymin.1985.020.1.04.

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AbstractA detailed study of the mineralogy of the Jurassic detrital sediments of the Betic Cordillera (SE Spain) was needed to resolve problems relating to the environment of deposition. The choice of the marly limestone and marl facies for such a study was appropriate, because these are well represented throughout the Cordillera and consist of the earliest materials deposited after the break-down of the Liassic carbonate platform. Quantitative mineralogical analyses and crystallochemical studies enabled the source area to be defined, as well as indicating the likely erosion and weathering pro

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26

Watson, Ken. "Remote sensing—A geophysical perspective." GEOPHYSICS 50, no. 12 (1985): 2595–610. http://dx.doi.org/10.1190/1.1441885.

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In this review of developments in the field of remote sensing from a geophysical perspective, the subject is limited to the electromagnetic spectrum from 0.4 μm to 25 cm. Three broad energy categories are covered: solar reflected, thermal infrared, and microwave. The reflected solar region has been the most intensely studied. Photointerpretation of images from individual spectral bands or from color composites remains the most widely used method of analysis. New instrumentation and digital processing, based on analysis of laboratory and field spectra, provide significant advances that are begi

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27

Jiang, Mei Guang, Quan Jun Liu, Hong Xiao, and Jun Long Yang. "The Process Mineralogy Research on Card Cover Type Gold Mine Tailings." Applied Mechanics and Materials 316-317 (April 2013): 819–21. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.819.

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The ore is a card cover type gold mine tailings of guizhou, In order to use this gold mine resources better, The process mineralogical research of carlin trend gold ore, By chemical analysis, X-ray diffraction analysis, Scanning electron microscope and electron probe composition analysis, artificial placer analysis,we have found out the The occurrence state of gold in the sample ore. Keywords: Card cover type gold deposits; tailings; Process mineralogy

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28

Jeong, Gi Young, Stephen Hillier, and Rob A. Kemp. "Changes in mineralogy of loess–paleosol sections across the Chinese Loess Plateau." Quaternary Research 75, no. 1 (2011): 245–55. http://dx.doi.org/10.1016/j.yqres.2010.09.001.

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AbstractQuantitative mineralogical analysis of bulk samples and single particles was carried out on three loess sections of different local climate settings on the Chinese Loess Plateau (CLP). Mineralogy, geochemistry, and single-particle petrography of loess and paleosols are relatively uniform over the CLP. However, in detail, there are mineralogical changes related to eolian process and chemical weathering. Particle-size sorting eastward from western sources led to an eastward increase of the total phyllosilicate contents enriched in fine illitic clay minerals. After deposition, detrital mi

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29

De la Torre, A. G., M. A. G. Aranda, A. H. De Aza, P. Pena, and S. De Aza. "Clínqueres Pórtland Belíticos. Síntesis y Análisis Mineralógico." Boletín de la Sociedad Española de Cerámica y Vidrio 44, no. 3 (2005): 185–91. http://dx.doi.org/10.3989/cyv.2005.v44.i3.433.

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30

Zhang, Qiong, and Jean-Baptist Peyaud. "Development and Validation of a Novel Interpretation Algorithm for Enhanced Resolution of Well Logging Signals." Journal of Sensors 2021 (January 7, 2021): 1–10. http://dx.doi.org/10.1155/2021/6610806.

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This work presents a novel algorithm that achieves enhanced resolution of well logging signals, e.g., from 1 ft of a pulsed neutron mineralogy tool to 0.04 ft of an imaging tool. The algorithm, denoted as “Digital Core,” combines mineralogical and sedimentological information to generate a high-resolution record of the formation mineralogy which can be consequently applied to thin bedded environments. The keystone to the philosophy of this algorithm is that the spectral information recorded by mineralogy tool is a weighted average of the mineralogy of each lithological component in the analyze

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31

Zhang, Qiong, and Jean-Baptist Peyaud. "Development and Validation of a Novel Interpretation Algorithm for Enhanced Resolution of Well Logging Signals." Journal of Sensors 2021 (January 7, 2021): 1–10. http://dx.doi.org/10.1155/2021/6610806.

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This work presents a novel algorithm that achieves enhanced resolution of well logging signals, e.g., from 1 ft of a pulsed neutron mineralogy tool to 0.04 ft of an imaging tool. The algorithm, denoted as “Digital Core,” combines mineralogical and sedimentological information to generate a high-resolution record of the formation mineralogy which can be consequently applied to thin bedded environments. The keystone to the philosophy of this algorithm is that the spectral information recorded by mineralogy tool is a weighted average of the mineralogy of each lithological component in the analyze

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32

Prognon, François, Isabelle Cojan, Pascal Kindler, Médard Thiry, and Michel Demange. "Mineralogical evidence for a local volcanic origin of the parent material of Bermuda Quaternary paleosols." Quaternary Research 75, no. 1 (2011): 256–66. http://dx.doi.org/10.1016/j.yqres.2010.08.002.

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AbstractThe alternation of carbonate deposits and paleosols compose the emerged part of the Bermuda archipelago. The pedological units present a complex and diversified mineralogy. Former studies demonstrated that the paleosols are not primarily a product of the unique dissolution of the surrounding carbonates, but contain a massive input of allochthonous non-carbonate detrital material. Researchers during more than the past three decades have attributed this flux of insoluble residues (IR) to Saharan dusts. We carried out systematic field and mineralogical analyses on the Quaternary paleosols

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33

Paula, Rafaela Teixeira, and Geraldo César Rocha. "Caracterização Física e Mineralógica de Materiais Intempéricos na Área Urbana de Juiz de Fora – MG, através de Análise Macroscópica, Difratrômetro de Raios-X (DRX) e Microscópio Eletrônico de Varredura (MEV)." Revista Brasileira de Geografia Física 14, no. 3 (2021): 1787. http://dx.doi.org/10.26848/rbgf.v14.3.p1787-1804.

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Materiais saprolíticos constituem importantes seções no recorte vertical da paisagem. São materiais ainda pouco conhecidos e demandam maior dedicação. Para caracterização destes materiais pode-se fazer uso de técnicas mineralogia e micromorfologia como a difração de Raios-X (DRX) e o Microscópio Eletrônico de Varredura (MEV). O DRX é uma técnica de caracterização de estruturas cristalinas. O MEV é um tipo de microscópio capaz de produzir imagens de alta resolução da superfície de materiais sólidos. O objetivo é caracterizar amostras de materiais intemperizados de diferentes rochas. Foram selec

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34

Widada, Sugeng, Hanna Afifah, Salatun Said, and Hendaryono Hendaryono. "Jenis Mineral Lempung Endapan Kuarter Pantai Semarang Jawa Tengah dan Potensinya sebagai Lumpur Pemboran." Jurnal Offshore: Oil, Production Facilities and Renewable Energy 3, no. 1 (2019): 1. http://dx.doi.org/10.30588/jo.v3i1.488.

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<p>Penelitian ini bertujuan untuk mengetahui karakteristik litologi endapan Kuater Pantai Semarang yang meliputi komposisi mineralogi, distribusi serta potensinya sebagai bahan lumpur bor. Komposisi mineralogi ditentukan dengan menggunakan scanning electron microscope (SEM). Untuk mengetahui potensi sebagai lumpur bor ditentukan berdasarkan uji <em>rheology</em> dan <em>filtration loss.</em> Dari hasil analisis menunjukkan sedimen Kuater Pantai Semarang didominasi oleh endapan lempung dengan sedikit lanau pasiran yang terbentuk oleh proses pengendapan secara suspe

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35

Hidayat, Muhammad Nurjati. "Studi Material Tanah Longsor Akibat Gempa Lombok 2018." TERAS JURNAL 10, no. 2 (2020): 235. http://dx.doi.org/10.29103/tj.v10i2.330.

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<p align="center"><strong>Abstrak</strong></p><p> </p><p class="11daftarpustaka">Pada umumnya, tanah longsor terjadi dengan skala yang kecil dan dampak yang dihasilkan tidak parah sebagaimana letusan gunung berapi, gempa atau tsunami. Namun, perhatian terhadap bencana ini seringkali diabaikan oleh masyarakat dan perencanaan pembangunan kota. Ada beberapa faktor yang perlu diperhatikan dalam meneliti tanah longor, salah satunya adalah mineral tanah. Dalam studi ini, sampel tanah diambil dari Lombok Utara akibat dari gempa Lombok 2018. Penelitian ini dil

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36

OZHOGINA, Elena, and Olga KOTOVA. "HOW TECHNOLOGICAL MINERALOGY CAN SOLVE PROBLEMS OF INTEGRATED PROCESSING OF MINERAL RAW." Sustainable Development of Mountain Territories 13, no. 2 (2021): 170–78. http://dx.doi.org/10.21177/1998-4502-2021-13-2-170-178.

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The development of mineral resources of solid mineral resources goes mainly together with problems because of natural factors, which determines current position of modern technological mineralogy. We paid particular attention to problems of mineralogical study of refractory ores of natural and technogenic genesis, associated with technical, technological and economic factors. We showed that many provisions of “Strategy for the development of Russian industry for the processing, utilization and disposal of industrial and consumer wastes for the period up to 2030” are related to the field of tec

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37

Regnet, Jean-Baptiste, Jérôme Fortin, Aurélien Nicolas, Matthieu Pellerin, and Yves Guéguen. "Elastic properties of continental carbonates: From controlling factors to an applicable model for acoustic-velocity predictions." GEOPHYSICS 84, no. 1 (2019): MR45—MR59. http://dx.doi.org/10.1190/geo2017-0344.1.

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We have provided new insights into the controlling factors of elastic properties in continental carbonate rocks and introduced an applicable model for acoustic-velocity predictions in such a medium. Petrophysical properties (porosity, permeability, P- and S-wave velocities) from laboratory measurements have been coupled with thin-section observations and characterizations, and X-ray diffraction (XRD) analyses. A major achievement is the establishment of the link between the mineralogical composition and the P- and S-wave velocity dispersion at a given porosity. This reflects the subtle interpl

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Kantiranis, N., M. Stamatakis, A. Filippidis, and C. Squires. "THE UPTAKE ABILITY OF THE CLINOPTILOLITIC TUFFS OF SAMOS ISLAND, GREECE." Bulletin of the Geological Society of Greece 36, no. 1 (2004): 89. http://dx.doi.org/10.12681/bgsg.16583.

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The bulk mineralogy and uptake ability of four samples (SA1 to SA4) of clinoptilolite-bearing tuffs from Samos Island, Greece were investigated. The semi-quantitative mineralogical analyses of the samples were determined by powder-XRD (PXRD). The chemical composition of the samples analysed by Atomic Absorption Spectroscopy (AAS), reflected the bulk mineralogy of the samples. The semi-quantitative mineralogy of the samples was found to be in good agreement with their chemical compositions. The uptake ability was measured using the ammonium saturation method (AMAS). The samples consist of clino

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Marumo, Yoshiteru, Shizuo Nagatsuka, and Yutaka Oba. "Rapid Clay Mineralogical Analysis for Forensic Science Investigation—Clay Mineralogy Over the Short Distances." Journal of Forensic Sciences 33, no. 6 (1988): 12580J. http://dx.doi.org/10.1520/jfs12580j.

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40

Ponce-Antón, Graciela, Luis Ortega, Maria Zuluaga, Ainhoa Alonso-Olazabal, and Jose Solaun. "Hydrotalcite and Hydrocalumite in Mortar Binders from the Medieval Castle of Portilla (Álava, North Spain): Accurate Mineralogical Control to Achieve More Reliable Chronological Ages." Minerals 8, no. 8 (2018): 326. http://dx.doi.org/10.3390/min8080326.

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Mortars from different stratigraphic units at Portilla Castle (Alava, North Spain) have been analyzed for mineralogical characterization before radiocarbon dating. The mortar binder at Portilla Castle is composed not only of neoformation calcite but also of double-layered hydroxide (LDH) minerals such as hydrotalcite and hydrocalumite. The mineralogy of several fractions of the binder has been analyzed to determine the granulometric distribution of minerals in the binder. The continuous monitoring of mineralogy during the extraction of different grain size fractions has been performed by using

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41

Bispo, Fábio Henrique Alves, Alexandre Christofaro Silva, Pablo Vidal Torrado, and Valdomiro Severino de Souza Junior. "Highlands of the upper Jequitinhonha valley, Brazil: II - mineralogy, micromorphology, and landscape evolution¹." Revista Brasileira de Ciência do Solo 35, no. 4 (2011): 1081–91. http://dx.doi.org/10.1590/s0100-06832011000400002.

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Palm swanp formations, the so-called veredas, typically occur in the Brazilian biome known as "Cerrado" (savanna-like vegetation), especially on flattened areas or tablelands (chapadas). The aim of this study was to characterize the mineralogy and micromorphology of soil materials from a representative toposequence of the watershed of the vereda Lagoa do Leandro, located in Minas Novas, state of Minas Gerais, Brazil, on plains in the region of the upper Jequitinhonha valley, emphasizing essential aspects of their genesis and landscape evolution. The toposequence is underlain by rocks of the Ma

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42

Ingunza, Maria P. D., Luis Yermán, and David Williams. "Mineralogy and Microstructural Aspects of Raw and Calcined Sewage Sludge: Considerations for Its Use in Composite Materials." Journal of Solid Waste Technology and Management 46, no. 3 (2020): 384–93. http://dx.doi.org/10.5276/jswtm/2020.384.

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Municipal sludge is being increasing considered as a source of raw material in the modern sustainable model policies. This kind of waste exhibits a complex composition mainly due to the sewage water source and the treatment processes. The aim of this work was to study the mineralogy and microstructural aspects of the raw sludge and its mineralogical transformations with calcination in order to obtain a better understanding of its behavior as a raw material in civil construction. Samples of raw sludge and sludge calcined at 700 °C, 800 °C and 900 °C were studied by X-ray diffraction and scannin

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Li, Zheng Yao, Wei Gang Chi, Jun Liu, Xiao Fan Guo, and Heng Qian Li. "Research on Process Mineralogy of some Pyrite Cinder." Advanced Materials Research 634-638 (January 2013): 3446–49. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.3446.

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The characteristics of process mineralogy of some pyrite cinders were studied with optics microscopes, scanning electron microscope, and x-ray diffraction. The chemical composition and the phase composition of the pyrite cinders were analyzed. The occurrence and chemical phase analysis of molybdenum of iron, copper, and gold were also studied. The behaviors of various minerals and mineralogical factors affecting the separation had been explained clearly. The investigation results were favorable to reasonable selection of technological process.

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44

Nikonow, Wilhelm, and Dieter Rammlmair. "Automated mineralogy based on micro-energy-dispersive X-ray fluorescence microscopy (µ-EDXRF) applied to plutonic rock thin sections in comparison to a mineral liberation analyzer." Geoscientific Instrumentation, Methods and Data Systems 6, no. 2 (2017): 429–37. http://dx.doi.org/10.5194/gi-6-429-2017.

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Abstract. Recent developments in the application of micro-energy-dispersive X-ray fluorescence spectrometry mapping (µ-EDXRF) have opened up new opportunities for fast geoscientific analyses. Acquiring spatially resolved spectral and chemical information non-destructively for large samples of up to 20 cm length provides valuable information for geoscientific interpretation. Using supervised classification of the spectral information, mineral distribution maps can be obtained. In this work, thin sections of plutonic rocks are analyzed by µ-EDXRF and classified using the supervised classificatio

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Tijsseling, Laurens T., Quentin Dehaine, Gavyn K. Rollinson, and Hylke J. Glass. "Mineralogical Prediction of Flotation Performance for a Sediment-Hosted Copper–Cobalt Sulphide Ore." Minerals 10, no. 5 (2020): 474. http://dx.doi.org/10.3390/min10050474.

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As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of nine sulphide ore samples was investigated through laboratory batch kinetics tests and quantitative mineral analyses. Using a range of ore samples from the same deposit the influence of mineralogy on flotation performance was studied. Characterisation of the samples through QEMSCAN showed that bornite, chalcopyrite, chalcocite and carrollite are the main copper-bearing sulphide minerals while carrol

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46

Claret, Francis, Sylvain Grangeon, Annick Loschetter, et al. "Deciphering mineralogical changes and carbonation development during hydration and ageing of a consolidated ternary blended cement paste." IUCrJ 5, no. 2 (2018): 150–57. http://dx.doi.org/10.1107/s205225251701836x.

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To understand the main properties of cement, a ubiquitous material, a sound description of its chemistry and mineralogy, including its reactivity in aggressive environments and its mechanical properties, is vital. In particular, the porosity distribution and associated sample carbonation, both of which affect cement's properties and durability, should be quantified accurately, and their kinetics and mechanisms of formation known both in detail andin situ. However, traditional methods of cement mineralogy analysis (e.g.chemical mapping) involve sample preparation (e.g.slicing) that can be destr

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47

Pallikathekathil, Z. J., and M. Wilson. "APPLICATIONS OF SPECTROLITH MINERALOGY FROM NEUTRON CAPTURE SPECTROSCOPY TOOLS FOR FORMATION EVALUATION." APPEA Journal 43, no. 1 (2003): 555. http://dx.doi.org/10.1071/aj02029.

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When performing a petrophysical analysis, an accurate understanding of the mineralogy of the formations of interest is important for two main reasons. Firstly, the mineralogy of the formations controls the matrix density, which is fundamental in the evaluation of porosity using conventional methods. Secondly, an accurate estimate of the fraction of clay minerals present in the formation is essential in accurately correcting resistivity-based saturation estimates for the effects of excess clay conductivity.Accurately evaluating the mineralogy in formations containing both gas and radioactive mi

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Berrezueta, E., B. Ordóñez-Casado, and L. Quintana. "Qualitative and quantitative changes in detrital reservoir rocks caused by CO<sub>2</sub>-brine-rock interactions during first injection phases (Utrillas sandstones, Northern Spain)." Solid Earth Discussions 7, no. 3 (2015): 2243–82. http://dx.doi.org/10.5194/sed-7-2243-2015.

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Abstract. The aim of this article is to describe and interpret qualitative and quantitative changes at rock matrix scale of Lower-Upper Cretaceous sandstones exposed to supercritical (SC) CO2 and brine. The effects of experimental injection of SC CO2 during the first injection phases were studied at rock matrix scale, in a potential deep sedimentary reservoir in Northern Spain (Utrillas unit, at the base of the Cenozoic Duero Basin). Experimental wet CO2 injection was performed in a reactor chamber under realistic conditions of deep saline formations (P ≈ 78 bar, T ≈ 38 °C and 24 h exposure ti

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Neubeck, Anna, Marek Tulej, Magnus Ivarsson, et al. "Mineralogical determination in situ of a highly heterogeneous material using a miniaturized laser ablation mass spectrometer with high spatial resolution." International Journal of Astrobiology 15, no. 2 (2015): 133–46. http://dx.doi.org/10.1017/s1473550415000269.

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AbstractTechniques enabling in situ elemental and mineralogical analysis on extraterrestrial planets are strongly required for upcoming missions and are being continuously developed. There is ample need for quantitative and high-sensitivity analysis of elemental as well as isotopic composition of heterogeneous materials. Here we present in situ spatial and depth elemental profiles of a heterogeneous rock sample on a depth-scale of nanometres using a miniaturized laser ablation mass spectrometer (LMS) designed for planetary space missions. We show that the LMS spectra alone could provide highly

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Godinho, Jose R. A., Barbara L. D. Grilo, Friedrich Hellmuth, and Asim Siddique. "Mounted Single Particle Characterization for 3D Mineralogical Analysis—MSPaCMAn." Minerals 11, no. 9 (2021): 947. http://dx.doi.org/10.3390/min11090947.

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This paper demonstrates a new method to classify mineral phases in 3D images of particulate materials obtained by X-ray computed micro-tomography (CT), here named mounted single particle characterization for 3D mineralogical analysis (MSPaCMAn). The method allows minimizing the impact of imaging artefacts that make the classification of voxels inaccurate and thus hinder the use of CT to characterize natural particulate materials. MSPaCMAn consists of (1) sample preparation as particle dispersions; (2) image processing optimized towards the labelling of individual particles in the sample; (3) p

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