Relevant bibliographies by topics / Gravel deposit

Contents

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

Academic literature on the topic 'Gravel deposit'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Gravel deposit"

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DOS SANTOS, MANOEL LUIZ, and JOSÉ CANDIDO STEVAUX. "Fáceis e associações dos depósitos rudáceos na rudáceos na Bacia do Rio Paraná em seu curso superior: uma tentativa de classificação." Pesquisas em Geociências 28, no. 2 (2001): 171. http://dx.doi.org/10.22456/1807-9806.20284.

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This paper proposes a classification of gravel deposits in the upper Paraná River Basin based on their genesis, sedimentary facies and depositional processes. They were classified in four types: a) Upper slope oligomictic gravel (Fine and coarse-sand associations) – this deposit is associated with the origin of hydrographic basin during the Tertiary; b) Middle slope oligomictic gravel – It constitutes colluvial deposits related to present topography; c) Lower slope oligomictic gravel – this deposit is associated with present river valley; d) Polymictic gravel – deposited during the Pleistocene
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Boguslavskiy, M. A., and S. O. Khudyakov. "Characteristics of native gold at Kosumnerskoe placer gold deposit (the Nether-Polar Urals)." Proceedings of higher educational establishments. Geology and Exploration, no. 5 (November 2, 2018): 24–30. http://dx.doi.org/10.32454/0016-7762-2018-5-24-30.

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The paper presents the results of a study of heavy mineral concentrates of Kosumnerskoe gold deposit as well as the native gold from them. This gold deposit includes two gravel deposits. The granulometric composition, morphology, roundness, flatness, presence of intergrowths of gold with other minerals, as well as the character of the surface, the chemical composition and internal structure of gold, have been investigated. Based on these results, the placer gold of rivers Narta-Yu and Nester-Shor has been concluded to be similar in morphology, chemical composition and internal structure so it
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Sekisov, Artur, Anna Rasskazova, Alexandr Lavrov, and Roman Bogomyakov. "Substantiation of field of application of combined (traditional and physicaland-chemical) geotechnologies for the development of gravel and secondary gold deposits." E3S Web of Conferences 56 (2018): 03011. http://dx.doi.org/10.1051/e3sconf/20185603011.

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Problems of accumulation of technogenic tailings dumps and as a result of sluicing of gold sands of gravel deposits are considered in article. Additional recovery of fine and dispersed gold from a mineral mass of such technogenic formations can be carried out with use of physical and chemical geotechnologies. The factors influencing on the choice of a way of development of the gold gravel deposit are listed. The mathematical model of a gravel deposit is developed for the solution of the problem of multifactorial assessment of technological options of processing of gold sands. The scheme of the
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Maurenbrecher, P. M., and R. Kronieger. "Mass Classification of Quaternary gravel deposits." Geological Society, London, Engineering Geology Special Publications 7, no. 1 (1991): 549–54. http://dx.doi.org/10.1144/gsl.eng.1991.007.01.53.

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AbstractA mass Classification index was devised to determine the variability of highly variable Quaternary gravel deposits in the Netherlands. To classify the “mass” properties trials have been carried out using the “scanline” concept. The scanline concept was verified in Spain to classify river gravel and glacial deposit mass properties such as grading, particle shape and rock type. Using a mass Classification system called the Scanline Quantification of Uniformity for Aggregate Designation or SQUAD, the scanline concept was adapted to determine representativeness of a sample with respect to
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Raji, W. O., and R. B. Bale. "THE GEOLOGY AND GEOPHYSICAL STUDIES OF A GRAVEL DEPOSIT IN UNIVERSITY OF ILORIN, SOUTHWESTERN NIGERIA." Continental J. Earth Sciences 3 (July 7, 2008): 40–46. https://doi.org/10.5281/zenodo.824302.

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Vertical electrical drilling and horizontal profiling methods of electrical resistivity have been employed to study the occurrence of gravel deposit in an area of 3.36sqkm within the University of Ilorin permanent site, Southwestern Nigeria. The petrological characteristics of the deposit were also investigated for assessing it suitability as construction aggregate materials. The gravel deposit varies from conglomeratic sandstone to sand- supported conglomerates. They are unsorted to poorly sorted and dominated by angular to sub-angular pebble clast. Results from the analysis of the geophysica
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Bai, Hongkui, Tong Pan, Guang Han, Qishun Fan, Qing Miao, and Haiyi Bu. "Hydrochemical Characteristics and Genesis of Sand–Gravel Brine Deposits in the Mahai Basin of the Northern Qinghai–Tibetan Plateau." Water 16, no. 24 (2024): 3562. https://doi.org/10.3390/w16243562.

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The sand–gravel brine deposit in the Mahai Basin is a newly discovered large-scale potassium–bearing brine deposit. The potassium–bearing brine is primarily found at depths exceeding 150 m within the porous alluvial and fluvial sand–gravel reservoir of the Middle to Lower Pleistocene. This deposit is characterized by a relatively shallow water table, moderate–to–strong aquifer productivity, high salinity, and a KCl content that meets the conditions for exploitation, with the advantage of reduced salt crystallization during well mining, making it a potential reserve base for potash development.
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Sarker, Md Nuruddin. "Gravel Deposits Of Dauki-Piyain River Bed And Surrounding Flood Plains: A Case Study." Journal of the Asiatic Society of Bangladesh, Science 41, no. 2 (2015): 225–32. http://dx.doi.org/10.3329/jasbs.v41i2.46206.

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The Dauki-Piyain river is the major source of gravels in Jaflong area which is located on the alluvial plain south of the Khasi-Jainta Hills. Jaflong gravels comprise quartzite, granite, gneiss, amphibolite, basalt, sandstone and conglomerate. The gravels are mostly fresh and hard and can be used as good construction materials. The deposition of gravels is controlled by the frequency and intensity of water-flow in the Dauki-Piyain river forming the Jaflong quarry. The Dauki river is constantly changing its course. Controlling the river course and keeping its tract clear from debris will make t
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Feng, Jin-Liang, Jian-Ting Ju, Feng Chen, Zhao-Guo Hu, Xiang Zhao, and Shao-Peng Gao. "Identification of a late Quaternary alluvial–aeolian sedimentary sequence in the Sichuan Basin, China." Quaternary Research 85, no. 2 (2016): 279–89. http://dx.doi.org/10.1016/j.yqres.2016.01.006.

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The late Quaternary sedimentary sequence in the northwestern part of the Sichuan Basin consists of five lithological units and with increasing depth include the: Chengdu Clay; Brown Clay; Red Clay; Sandy Silt; and basal Muddy Gravel. The genesis, provenance and age of the sediments, as well as the possible presence of hiatuses within this sequence are debated. Measurements of grain-size, magnetic susceptibility, quartz content, quartz δ18O values, element composition, and Sr–Nd isotopic concentrations of samples from a typical sedimentary sequence in the area provides new insights into the gen
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Martinez-Carvajal, German Dario, Laurent Oxarango, Jérôme Adrien, Pascal Molle, and Nicolas Forquet. "Structural Changes in French VF Treatment Wetland Porous Media during the Rest Period: An Ex Situ Study Using X-ray Tomography." Water 13, no. 3 (2021): 389. http://dx.doi.org/10.3390/w13030389.

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Clogging constitutes a major operational issue for treatment wetlands. The rest period is a key feature of French Vertical Flow (VF) treatment wetlands and serves to mitigate clogging. An ex-situ drying experiment was performed to mimic the rest period and record structural changes in the porous media using X-ray Computed Tomography (CT). Samples containing the deposit and gravel layers of a first stage French VF treatment wetland were extracted and left to dry in a control environment. Based on CT scans, three phases were identified (voids, biosolids, and gravels). The impact of the rest peri
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Osborn, Gerald, Richard Thomas, William McCoy, Barry Miller, and Alison Smith. "Significance of a molluscan fauna to the physiographic history of the Calgary area, Alberta." Canadian Journal of Earth Sciences 28, no. 12 (1991): 1948–55. http://dx.doi.org/10.1139/e91-176.

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A newly discovered molluscan fauna provides an approximate age for a previously undated gravel sequence capping Nose Hill, a relict plateau adjacent to the Bow River in Calgary, Alberta, and constrains the age of the physiographic relief in the area. The fauna consists of a mixed terrestrial–aquatic assemblage whose composition indicates a paleoclimatic regime similar to that of the area today. The fossiliferous sediment, interpreted as a pond deposit, is a pebbly mud within a thick braid-plain gravel sequence. Isoleucine epimerization in the molluscs is not inconsistent with an Early Pleistoc
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Dissertations / Theses on the topic "Gravel deposit"

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Boreland, K. N. "The Quaternary gravel deposits in the Lower Bristol Avon." Thesis, University of Bristol, 1985. http://hdl.handle.net/1983/d3ed400b-5fed-43ee-b642-ebd415482991.

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Skalak, Katherine Joanne. "Fine-grained channel margin deposits in a typical gravel bed river spatial and temporal controls on the distribution, quantity, and residence time and implications for centennial-scale sediment and mercury cycling /." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 437 p, 2009. http://proquest.umi.com/pqdweb?did=1885693201&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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Lindell, Sofia. "Meningsbärande skräp. : Spår av rituella handlingar vid yngre järnåldersgravar i Mälardalen." Thesis, Stockholms universitet, Institutionen för arkeologi och antikens kultur, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-162352.

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The main purpose of this dissertation is to investigate the range of small finds and other materials often found deposited in the fills and stone settings above later Iron Age graves in the Mälar region of central Sweden. This study investigates how this material, especially potsherds, burnt clay, burnt and unburnt bones and teeth, flint, ice crampons, nails, rivets and knives, were distributed in eight different grave fields in the Mälar valley. The results shows that most of this material was indeed deliberately placed on or in the graves, with different object types added to particular area
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Danna, James G. "Experimental study of clast orientation in gravels deposited by unidirectional flow." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/57919.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1985.<br>Microfiche copy available in Archives and Science.<br>Bibliography: leaves 83-84.<br>by James G. Danna.<br>M.S.
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Spaggiari, Renato Igino. "Sedimentology of plio-pleistocene gravel barrier deposits in the palaeo-Orange River mouth, Namibia : depositional history and diamond mineralisation." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1004636.

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The largest known marine diamond placer, the Namibian mega-placer, lies along the Atlantic coast of south-western Africa from the Orange River mouth 1,000 km northwards to the Namibian-Angolan border. The most economically viable portion of the Namibian mega-placer (>75 million carats recovered at >95% gem quality) comprises onshore and offshore marine deposits that are developed within ∼100km of the Orange River outfall. For much of the Cainozoic, this long-lived fluvial system has been the main conduit transporting diamonds from kimberlitic and secondary sources in the cratonic hinterland of
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Williams, Jason Ryan. "SEDIMENTOLOGY, MINERALOGY, AND ASTROBIOLOGICAL IMPLICATIONS OF SPRING DEPOSITS IN TEN MILE GRABEN, UTAH." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2270.

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Hot and cold springs on Earth represent environments with diverse environmental conditions and microbial communities. Identifying ancient springs preserved in the rock record remains a challenge for scientists interpreting deposits on Earth and Mars. The purpose of this research is to characterize a Jurassic hot spring deposit and Quaternary tufa terraces with the goal of identifying parameters which will aid researchers in the classification of spring deposits. Ten Mile Graben in east-central Utah contains over 40 tufa terraces which range in age from 0-400ka. There are also Jurassic Brushy B
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Thomas, Jonova. "Microstructural Phase Evolution In Laser Deposited Compositionally Graded Titanium Chromium Alloys." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849610/.

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A compositionally graded Ti-xCr (10≤x≤30 wt%) alloy has been fabricated using Laser Engineered Net Shaping (LENSTM) to study the microstructural phase evolution along a compositional gradient in both as-deposited and heat treated conditions (1000°C followed by furnace cooling or air cooling). The alloys were characterized by SEM BSE imaging, XRD, EBSD, TEM and micro-hardness measurements to determine processing-structure-property relations. For the as-deposited alloy, α-Ti, β-Ti, and TiCr2 (C15 Laves) phases exist in varying phase fractions, which were influential in determining hardness value
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South, John V. "Investigating the margins of Pleistocene lake deposits with high-resolution seismic reflection in Pilot Valley, Utah." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2648.pdf.

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Lodewyks, Therisia. "Siesmic Stratigraphy of Upper Pleistocene gravel and holocene mudbelt deposits between wreck point and the kamma river on the western shelf of South Africa." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/4208.

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This project aims to provide a better understanding of the deposition of Quaternary and Holocene sediments along the west coast of Southern Africa between Wreck Point at approximately 28º50.00′S and the Kamma River at approximately 29º20.00′S, based primarily on seismic stratigraphy. The high resolution airgun seismic survey performed by De Beers Marine during 1998 was interpreted based on seismic stratigraphic principles and the chronology of the seismic profiles was based on correlation to radiocarbon-dated gravity cores from offshore the Holgat River determined by Herbert (2009). Seismic pr
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Savory, Philip John. "Geostatistical methods for estimating iron, silica and alumina grades within the hardcap of the section seven iron deposit, Tom Price." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2012. https://ro.ecu.edu.au/theses/515.

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Many iron ore deposits have a weathered zone (Hardcap) near the surface which is highly variable in grades. Estimating the amount of ore grade material (HG) in this zone is difficult as a result of this variability. The Section Seven Deposit at Tom Price is largely mined out and has production data available in the form of grade blocks that were marked out during mining as HG and non- HG. Hardcap domains and a block model representing them were created and estimates were made from original exploration data using Ordinary Kriging, Global Change of Support, Indicator Kriging and Median Indicator
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Books on the topic "Gravel deposit"

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Lindsey, David A. An introduction to sand and gravel deposit models, Front Range urban corridor. U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

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Lindsey, David A. Slide show on gravel deposit models and measuring aggregate quality, Front Range urban corridor, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Lindsey, David A. Slide show on gravel deposit models and measuring aggregate quality, Front Range urban corridor, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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Lindsey, David A. Slide show on gravel deposit models and measuring aggregate quality, Front Range urban corridor, Colorado. U.S. Dept. of the Interior, U.S. Geological Survey, 1998.

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A, Lindsey David, and Geological Survey (U.S.), eds. Preliminary report on deposit models for sand and gravel in the Cache la Poudre River valley. U.S. Dept. of the Interior, U.S. Geological Survey, 1999.

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Kaschnitz, Marie Luise. Grave deposits. Brighton Press, 2010.

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Marshall, T. R. The diamondiferous gravel deposits of the Bamboesspruit, southwestern Transvaal. University of the Witwatersrand, 1987.

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Ellefsen, Karl. An evaluation of several geophysical methods for characterizing sand and gravel deposits. U.S. Department of the Interior, U.S. Geological Survey, 1998.

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Ellefsen, Karl. An evaluation of several geophysical methods for characterizing sand and gravel deposits. U.S. Department of the Interior, U.S. Geological Survey, 1998.

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Lucius, Jeffrey E. An introduction to using surface geophysics to characterize sand and gravel deposits. U.S. Geological Survey, 2007.

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Book chapters on the topic "Gravel deposit"

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Grömer, Karina. "Theoretical Approaches to the Functions of Textiles in Graves." In Interdisciplinary Contributions to Archaeology. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-69461-5_2.

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Abstract The interpretation of textiles from prehistoric graves is sometimes complex, as there are different reasons as to why textiles can be found within the archaeological context of graves. Textiles can have a ritual/sacred meaning in graves, referring to the rites of passage between the time of death and the time of burial, or they can have a meaning during the burial itself. Inhumation graves can provide essential information about the clothing of the deceased, although whether this represents a special dress for the dead or clothing that was also worn by the living must be discussed. He
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Watabe, M., K. Muroi, and K. Fukutake. "Dynamic Characteristics of Quaternary Sand-Gravel Deposits." In Developments in Dynamic Soil-Structure Interaction. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1755-5_14.

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Bobrowsky, Peter T., and Gavin K. Manson. "Modeling sand and gravel deposits and aggregate resource potential." In Aggregate Resources. CRC Press, 2021. http://dx.doi.org/10.1201/9781003077954-16.

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Stauffer, Fritz, and Peter Jussel. "Spatial Variability of Unsaturated Flow Parameters in Fluvial Gravel Deposits." In Field-Scale Water and Solute Flux in Soils. Birkhäuser Basel, 1990. http://dx.doi.org/10.1007/978-3-0348-9264-3_14.

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Rondon, Oscar, and Hassan Talebi. "Artifacts in Localised Multivariate Uniform Conditioning: A Case Study." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-19845-8_12.

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AbstractLocalised Multivariate Uniform Conditioning (LMUC) is a technique designed for spatially locating Selective Mining Unit (SMU) grades derived using Multivariate Uniform Conditioning (MUC) for the assessment of recoverable resources. LMUC has the advantage of producing SMU estimates conforming to the MUC panel-specific grade-tonnage curves while preserving the spatial grade distribution at the selective mining level. However, LMUC results have two severe artifacts. This paper documents both artifacts using four grades from a large nickel–cobalt laterite deposit in Western Australia.
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Movchan, Boris A., and Kostyantyn Yu Yakovchuk. "Advanced Graded Protective Coatings, Deposited by EB-PVD." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-432-4.1681.

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Menzie, W. D., B. L. Reed, and D. A. Singer. "Models of Grades and Tonnages of Some Lode Tin Deposits." In Geology of Tin Deposits in Asia and the Pacific. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-72765-8_4.

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Edwards, W. A. Dixon. "The geology, exploration characteristics, and resource potential of sand and gravel deposits in Alberta, Canada." In Aggregate Resources. CRC Press, 2021. http://dx.doi.org/10.1201/9781003077954-7.

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Chauvet, Pierre. "The Comparison between the Gamma Logs and the Grades in the Estimation of a Uranium Deposit." In Quantitative Geology and Geostatistics. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3383-5_2.

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Ball, Adrian, John Zigman, Arman Melkumyan, Anna Chlingaryan, Katherine Silversides, and Raymond Leung. "Addressing Application Challenges with Large-Scale Geological Boundary Modelling." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-19845-8_17.

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AbstractFor banded iron formation-hosted deposits accurate boundary modelling is critical to ore-grade estimation. Key to estimation fidelity is the accurate separation of the different domains within the ore body, requiring modelling of the boundaries between domains. This yields both theoretical and application challenges. We present a series of solutions for application challenges that arise when modelling large-scale boundaries employing a composition of Gaussian Process models on exploration and production hole data. We demonstrate these in the banded iron formation-hosted iron ore deposi
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Conference papers on the topic "Gravel deposit"

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Prosek, T., A. Iversen, and C. Taxén. "Low Temperature Stress Corrosion Cracking of Stainless Steels in the Atmosphere in Presence of Chloride Deposits." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08484.

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Abstract Several cases of ceiling collapses and other failed elements have been reported in indoor swimming pool halls in the last two decades. The collapses were caused by stress corrosion cracking (SCC) of stainless steel fastening elements made of grades UNS S30400, S31600, or similar. It was shown that this phenomenon can occur under specific conditions beneath chloride deposits at temperatures as low as the room temperature. The aim of this study was to assess the application limits of different austenitic and duplex stainless steel grades subject to tensile stress and contaminated with c
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Johansson, E., and T. Prosek. "Stress Corrosion Cracking Properties of UNS S32101 – a New Duplex Stainless Steel with Low Nickel Content." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07475.

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Abstract UNS S32101 is a general-purpose lean duplex stainless steel with low nickel content. The stress corrosion cracking properties of UNS S32101 were investigated under constant strain conditions. Both evaporative and immersion test methods were used. The results for UNS S32101 were compared with those of a standard austenitic stainless steel and other duplex grades. Immersed in concentrated chloride solutions, UNS S32101 exhibited similar resistance to stress corrosion cracking as other duplex grades. In the wick test UNS S32101 was not susceptible to stress corrosion cracking and was com
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Livanov, Oliver, Alexandru Banescu, Adrian Burada, Paula Pindic, and Ciprian Anore. "THE PARTICLE SIZE OF THE BOTTOM SEDIMENTS IN SOME CANALS OF THE FLUVIAL-MARINE DANUBE DELTA." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s01.17.

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In deltaic environments like the Danube Delta, sedimentary particles can range from clay and silt to sand and gravel. The proximity to the Black Sea introduces marine processes into the deltaic system that can be translated as a mixture of fine-grained sediments derived from the fluvial delta along with marine sediments from the Black Sea. This region is of particular importance for the ecology and hydrology of the Danube Delta due to the presence of sandy deposits that cause a major change in both natural and anthropogenic habitats. The emergence of artificial canals dug in sandy deposits had
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Frantsen, J. E., T. Mathiesen, J. Rau, J. Terävä, P. Björnstedt, and B. Henkel. "Effects of Gas Atmosphere and Surface Quality on Rouging of Three Stainless Steels in WFI." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03074.

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Abstract The pharmaceutical industry has for a long time been troubled by red-brown to dark violet deposits in distillation columns, storage vessels and distribution systems for water for injection (WFI), hot purified water, and clean steam. This phenomenon is known as rouging due to the visual appearance of the deposits that basically are stainless steel corrosion products. The affected installations are mostly fabricated from the austenitic stainless steel grade AISI 316L. The exact mechanism for rouge formation is not fully understood. However, it is widely reported that the phenomenon is c
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Senatore, Marcelo, and Jonas Höwing. "Application of Twisted Hyper Stainless Steel Duplex on Crude Unit Overhead Condenser." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10357.

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Abstract Twisted duplex 22% Cr tubes installed in a Crude Unit overhead condenser have failed prematurely due to corrosion; the service lifetime was only 18 months. The failure mechanism has been chloride induced under deposit corrosion, exacerbated by the presence of elemental sulfur. Since the 22% Cr duplex grade was not corrosion resistant enough hyper duplex UNS S32707 has been chosen as the replacement grade. Qualification of UNS S32707 shows that it is possible to twist the tubes in the same way as the lower alloyed 22% Cr grade. Thus the design of the heat exchanger and the fabrication
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Maitra, Debajyoti, Jim Crum, and Lewis Shoemaker. "An Explanation of Accelerated Crevice Corrosion of Stainless Steels in Wet Limestone FGD Environments." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01557.

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Abstract Many steels and alloys have been used in the construction of wet limestone flue gas desulfurization (FGD) air pollution control systems ranging from duplex and austenitic stainless steels to highly alloyed grades of nickel-base corrosion-resistant alloys. The quest for cost control in power production has driven designers to the lower end of this range of materials. Some FGD absorber vessels recently constructed of duplex stainless steel have experienced severe corrosion after less than one year of operation. This attack was explored and both laboratory and field tests were conducted.
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Pillot, Sylvain, Stéphanie Corre, Lionel Coudreuse, Cédric Chauvy, Andrew Gingell, and Patrick Toussaint. "Comparison of Hydrogen Solubility and Diffusivity in 2.25Cr-1Mo and 2.25Cr-1Mo-V Steels: Consequence on Hydrogen Induced Disbonding Phenomenon." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01291.

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Abstract Over the last few years, conventional 2,25Cr1Mo grade has been increasingly replaced by 2,25Cr1MoV grade for the fabrication of heavy refining reactors, offering better mechanical properties at high temperatures. This change also improves Hydrogen Induced Disbonding (HID) resistance due to large differences in hydrogen solubility and diffusion behavior between the two grades. The hydrogen trapping ability of 2,25Cr1MoV is also an important parameter to take into consideration. This paper proposes to explain the differences between the two previously cited grades when facing gaseous hy
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Chambers, J. E., P. B. Wilkinson, A. L. Weller, et al. "Sand and Gravel Deposit Evaluation Using Electrical Resistivity Tomography." In Near Surface 2009 - 15th EAGE European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609.20147079.

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Harris, James B., David E. Smolkin, David T. Butler, and Stan J. Galicki. "Shallow Shear‐Wave Seismic Characterization of a Pleistocene Gravel Deposit, Yazoo County, Mississippi." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2009. Environment and Engineering Geophysical Society, 2009. http://dx.doi.org/10.4133/1.3176743.

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Harris, J., D. Smolkin, D. Butler, and S. Galicki. "Shallow Shear-Wave Seismic Characterization of a Pleistocene Gravel Deposit, Yazoo County, Mississippi." In 22nd EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2009. http://dx.doi.org/10.3997/2214-4609-pdb.157.sageep064.

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Reports on the topic "Gravel deposit"

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Boulianne-Verschelden, N., V. De Bronac de Vazelhes, I. McMartin, and G. Beaudoin. Surficial geology, Amaruq deposit area, Kivalliq Region, Nunavut, NTS 66-H southeast. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329418.

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The Amaruq deposit map area is a glacial landscape dominated by till deposits (72% of map area) forming transverse ridges, hummocky moraine, or plains of varying thickness, occasionally streamlined. Glacial lake sediments cover about 18% of the map area and form thick to thin deposits covering the till. They occur predominantly in lowlands and below approximately 140 m a.s.l., which is the elevation of the highest raised beaches located in the western part of the map area. Some of the glacial lake sediments could have been deposited in a marine environment during high sea levels following degl
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Biedenharn, David S., and Maureen K. Corcoran. A Literature Review of Processes for Gravel Deposit Identification in the Lower Mississippi River. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada526307.

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Marr, Alexander. OF-23-04 Geologic Map of the Milton Reservoir Quadrangle, Weld County, Colorado. Colorado Geological Survey, 2024. https://doi.org/10.58783/cgs.of2304.mcgn8961.

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The Milton Reservoir 7.5-minute quadrangle is located in Weld County within the northern part of the Colorado Piedmont. The subdued landscape consists of gentle sloping uplands and the shallow valley of Beebe Draw, a north-south trending alluvial paleovalley where the ancestral South Platte River once flowed. The dominant surficial sediments in the quadrangle are Upper Pleistocene to Holocene eolian deposits where the sandier units form longitudinal and parabolic dune landforms, and the fine clay to silt rich units occur in interdunal valleys. Multiple alluvial deposits of different ages are s
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Houck, Karen, Jay Temple, Kassandra Lindsey, Lauren Broes, and Daniel Miggins. OF-20-02 Geologic Map of the Agate Mountain Quadrangle, Park County, Colorado. Colorado Geological Survey, 2024. https://doi.org/10.58783/cgs.of2002.gfnp2602.

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The Agate Mountain quadrangle contains Proterozoic igneous and metamorphic rocks, Paleozoic sedimentary rocks, and Cenozoic volcanic and volcaniclastic rocks. Proterozoic rocks include granite, granitic gneiss, gabbro porphyry, pegmatite, mylonite, and microbreccia. Paleozoic sedimentary rocks include the Manitou Formation, Harding Sandstone, Fremont Formation, Dyer Dolomite, Leadville Limestone, Belden Formation, Minturn Formation, and Maroon Formation. Cenozoic volcanic and volcaniclastic rocks include Wall Mountain Tuff, Thirtynine Mile Andesite, volcanic breccias, trachybasalt, Tallahassee
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Kidder, J. A., M. B. McClenaghan, M I Leybourne, et al. Geochemical data for stream and groundwaters around the Casino Cu-Au-Mo porphyry deposit, Yukon (NTS 115 J/10 and 115 J/15). Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328862.

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This open file reports geochemical data for stream and groundwater samples collected around the Casino porphyry Cu-Au-Mo deposit, one of the largest and highest-grade deposits of its kind in Canada. The calc-alkaline porphyry is hosted in a Late Cretaceous quartz monzonite and associated breccias in the unglaciated region of west central Yukon. Water chemistry around the deposit was investigated because: (i) the deposit has not yet been disturbed by mining; (ii) the deposit was known to have metal-rich waters in local streams; and (iii) the deposit has atypically preserved ore zones. Stream wa
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Jackson, G. D. Bedrock geology, northwest part of Nuluujaak Mountain, Baffin Island, Nunavut, part of NTS 37-G/5. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/314670.

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The map area lies about 40 km northwest of Baffinland's iron mine. Dykes of unit mAnA3 within unit mAnA2 suggest that unit mAnA2 predates unit mAnA3. Unit nAMqf, basal Mary River Group unit, includes regolith material from units mAnA2 and mAnA3. Unit mAnAm may include some dykes of unit nAMb. The Mary River Group was deposited in a volcanic-arc environment, yielding zircon U-Pb ages mostly in the range of 2.88 to 2.72 Ga. Iron-formation (unit nAMi) is approximately 276 m thick locally, with oxide facies (unit nAMio) being most abundant. The quartzite triangle west of 'Iron lake' (unofficial na
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Jefferson, C. W., S. Pehrsson, V. Tschirhart, et al. Geology and metallogeny of the northeast Thelon Basin region, Nunavut, and comparison with the Athabasca Basin, Saskatchewan. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332499.

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Based on extensive remapping of the northeast Thelon Basin region in Nunavut, uranium exploration criteria are adapted from those of the Athabasca Basin in Saskatchewan, as basin-specific paradigms. The Athabasca Basin straddles the Rae and Hearne cratons and the Taltson magmatic zone, whereas the Thelon Basin rests entirely within the Rae Craton. In the Athabasca Basin, four unconformity-bounded siliciclastic sequences with different paleocurrents record a complex depositional history, whereas the Thelon Formation is a single, albeit cyclic siliciclastic unit with uni-modal paleocurrents. Ben
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Kerr, D. E. Reconnaissance surficial geology, Bebensee Lake, Northwest Territories-Nunavut, NTS 86-M. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329456.

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Preliminary surficial geology, based on airphoto interpretation and limited legacy field data of the Bebensee Lake map area, records a complex glacial landscape. Highly streamlined till, till blanket, hummocky till, moraine complex, and ridged till are dominant units. Glaciofluvial sand and gravel form eskers, subglacial meltwater corridors, ice-contact deposits, and outwash plains. Fine-grained glaciolacustrine sediments in the south occur predominantly in lowlands below 250 m elevation, relating to glacial Lake McConnell. Multiple lobes of Laurentide ice glaciated the area. Relict glacial la
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Keller, Stephen, and Alexander Marr. OF-22-08 Geologic Map of the Windsor Quadrangle, Larimer and Weld Counties, Colorado. Colorado Geological Survey, 2024. https://doi.org/10.58783/cgs.of2208.lfhf7370.

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The Windsor quadrangle, situated in the northern part of the Colorado Piedmont, features relatively low topographic relief with a 94-meter variance between its highest and lowest points. Notable elongated outcrop areas of weathered bedrock are observed along the dissected southwest side of the Cache la Poudre River valley. While fresh bedrock is mainly found in lower gravel pit faces in the Big Thompson River valley, unconsolidated Quaternary deposits cover most of the quadrangle with few natural exposures along river cut banks. The landscape is primarily characterized by a broad upland swath
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Sprinkel, Douglas A. Geologic Map of the Duchesne 30' x 60' Quadrangle, Duchesne and Wasatch Counties, Utah. Utah Geological Survey, 2024. https://doi.org/10.34191/m-300dm.

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This geologic map of the Duchesne 30' x 60' quadrangle is the result of five years of new mapping aided by previous mapping. Approximately centered on the town of Duchesne, Utah, the Duchesne County seat, the quadrangle covers most of the western Uinta Basin. Tertiary rocks of the Green River, Uinta, and Duchesne River Formations dominate the bedrock units in the quadrangle. Members of the formations are recognized and mapped throughout the Duchesne quadrangle despite the coarsening of these members in the western half. In the northwestern corner of the map area, Cambrian and Mississippian thr
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