Relevant bibliographies by topics / Placer deposits

Contents

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

Academic literature on the topic 'Placer deposits'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "Placer deposits"

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Stepanov, V. A. "Reference couple gold deposit — placer as a basis for forecasting of the new gold deposits in Amur river basin." Proceedings of higher educational establishments. Geology and Exploration, no. 6 (January 3, 2019): 49–58. http://dx.doi.org/10.32454/0016-7762-2018-6-49-58.

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About 1400 placers and several dozens of ore gold deposits are known in the Amur gold-bearing province. Placers are to a large degree worked out, so the future of the province is seen to be in the discovery of the new gold deposits. The paper shows the dependence of the productivity and composition of the native gold placers on the size and formational affiliation of the placer-forming gold deposit. The reference couples have been identified: the gold deposit and the placer formed due to the erosion of its' upper part. For example, the Tokur gold-quartz deposit is a channel-fill placer in Toku
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Pitty, Alistair F. "Placer deposits symposium." Journal of the Geological Society 142, no. 4 (1985): 709–10. http://dx.doi.org/10.1144/gsjgs.142.4.0709.

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Kedrova, T. V., I. N. Bogush, N. N. Zinchuk, L. D. Bardukhinov, A. N. Lipashova, and V. P. Saltykova. "Diamond Placers of the Nakyn Kimberlite Field." Russian Geology and Geophysics 63, no. 3 (2022): 245–54. http://dx.doi.org/10.2113/rgg20204259.

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Abstract The paper presents the results of studies of diamonds from Early Jurassic sediments making up the Nyurbinskoe buried placer of the Nakyn kimberlite field, unique in diamond reserves. The main task is to identify diamond distribution patterns in the deposits of the Dyakhtar Stratum (lower deposit) and the Ukugut Suite (upper deposit) within the placer. A comparative analysis of the typomorphic features of diamonds from the upper and lower deposits of the placer was carried out. Variations in the contents of crystals with certain properties that form the image of a diamond-bearing geolo
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JAMSRANDORJ, G., and SERGUEI A. DIATCHKOV. "Placer Deposits of Mongolia." SEG Discovery, no. 24 (January 1, 1996): 1–14. http://dx.doi.org/10.5382/segnews.1996-24.fea.

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Editor’s note: Smimov uses the weathering definition of eluvial, meaning “an accumulation of rock debris produced*in-place by decomposition or disintegration of rock; a residue.” Two other terms in Smimov’s classification are not in common usage in North America nor in North American placer classification schemes By Russian definition, diluvium is an accumulation of fragments on the surface of slopes close to the source rock, predominantly moved by gravity. In North America, proluvium is a “complex, friable deltaic sediment accumulated at the fool of a slope as a result of an occasional torren
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Melchiorre, Erik B., Ryan Mathur, George Kamenov, and Jorge Paredes. "Geochemical Overprinting and Secondary Placer Crystal Formation in the La Cholla District, Quartzsite, Arizona, USA: Evidence from Copper Isotopes, Morphology, and Trace Elements." Minerals 13, no. 11 (2023): 1444. http://dx.doi.org/10.3390/min13111444.

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Geochemical overprinting on placer gold deposits produces complex deposits with apparently paradoxical geochemical and morphological attributes. The La Cholla placer gold deposits near Quartzsite, Arizona, USA, contain sharp and often undamaged gold crystals within high-energy gravels as a result of postdepositional recrystallization by localized hot springs. Geothermal fluids emanated from a basin-bounding fault and left a distinct signature that includes recrystallized gold with low Pb and δ65Cu > 1.14‰, secondary uraninite and carnotite, travertine deposits, and mounds of highly silicifi
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Pidvysotskyi, V. T., N. M. Ostafychuk, and S. I. Bashinsky. "PLACER DEPOSITS OF DIAMONDS AND THEIR FORMATION CONDITIONS." Geological Journal, no. 1 (March 29, 2023): 17–38. http://dx.doi.org/10.30836/igs.1025-6814.2023.1.273683.

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This article reviews information from published papers and studies by the authors about placer diamond deposits. Original data were obtained in result of field and laboratory-analytical work carried out in various countries of Africa and South America. The main types of placer diamond deposits – fluvial, fluvioglacial, eolian, and man-made – have been considered and characterized. The main attention is given to fluvial continental placers, which are the most diverse, well-studied and have the greatest industrial importance. Primary, secondary and mixed deposits are distinguished according to t
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Syafrizal, AYA Hakim, and A. Sulastri. "Geochemical Distribution of REE and Grain Size Analysis of Heavy Mineral Associated with Tin Placer-Type Deposit, Bangka." IOP Conference Series: Earth and Environmental Science 1031, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1755-1315/1031/1/012008.

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Abstract Indonesia is included in the East Malaya Block of the Southeast Asian Tin Belt. Two types of tin deposits in Indonesia are primary and secondary tin deposits (placer). Factors that can cause the formation of placer tin deposits include S-type granite, weathering, transportation, and sedimentation. Factors that control the formation of placer tin deposits include the presence of source rock (granite type S), weathering processes, erosion, transportation and sedimentation, and the presence of basins or valleys where weathering materials are deposited. The transportation process has a ma
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RAGHUPATRUNI, BHIMA RAO. "Preconcentration of Placer Critical Minerals from Red Sand Dunes." Journal of Geointerface 3, no. 2 (2024): 50–63. https://doi.org/10.5281/zenodo.14173307.

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In the current research, it is proposed that the Vertical Shaft Kiln (VSK) separator, an innovative air classifier, be implemented   before the introduction of samples into wet processing circuits such as scrubbing and spirals. This measure aims to mitigate environmental pollution in the downstream marine environment. The incorporation of an air classifier allows for the removal of undesirable slimes that contribute to pollution, which constitute 9.8% by weight, including 5.3% Light Heavy Minerals (LHM). These LHM are non-commercial gangue minerals, comprising pyroxenes and amphibole
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Ng-Cutipa, Wai L., Ana Lobato, Francisco Javier González, et al. "Spectral Angle Mapper Application Using Sentinel-2 in Coastal Placer Deposits in Vigo Estuary, Northwest Spain." Remote Sensing 17, no. 11 (2025): 1824. https://doi.org/10.3390/rs17111824.

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Remote sensing applications for marine placer deposit exploration remain limited due to the mineralogical complexity and dynamic coastal processes. This study presents the first medium- to high-level detailed multi-scale remote sensing analysis of placer deposits in the Rías Baixas, NW Spain, focusing on five beaches within the Vigo Estuary. Ten beach samples were analyzed for their heavy mineral (HM) content and spectral signatures, using bromoform separation and FieldSpec 4 spectroradiometer equipment, respectively. The spectral signatures of beach samples with a high HM content were charact
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Alenichev, V. M., and M. V. Alenichev. "Enhancing geopotential of placer deposits." MINING INFORMATIONAL AND ANALYTICAL BULLETIN 8 (2018): 16–25. http://dx.doi.org/10.25018/0236-1493-2018-8-0-16-25.

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Dissertations / Theses on the topic "Placer deposits"

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Mann, P. L. "Surficial placer gold deposits." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1018245.

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This review summarises the factors which control the formation and distribution of surficial gold placer deposits. Regional tectonic and climatic conditions as well as gold source are considered. The characteristics of eluvial, alluvial, marine, glacial and fluvioglacial gold placer deposits are described. Particular attention is paid to the gold grains within these placers. These gold grains have a distinctive morphology and chemical composition which reflect the manner in which they were transported, deposited and concentrated within the placers. The knowledge of the processes which lead to
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Weston, Leyla Halide. "Sedimentology and stratigraphy of placer gold deposits of Haggart Creek, central Yukon Territory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0016/MQ48054.pdf.

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Bond, Jeffrey David. "Late Cenozoic history of McQuesten map area, Yukon Territory, with applications to placer gold research." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq21154.pdf.

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De, Bever Johannes Nicolaas. "An overview of the early-proterozoic, auriferous Black Reef placer in the Transvaal Basin." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005596.

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Van, Eeden Johan. "Basin analysis and sequence stratigraphy a review, with a short account of its applicability and utility for the exploration of auriferous placers in the Witwatersrand Basin." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005546.

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The Witwatersrand basin is unique in terms of its mineral wealth. The gold in the Witwatersrand basin is mainly concentrated in the placers and two types of unconformities are associated with the placer formation. This paper attempts to quantitatively describe the origin and depositional process of placers within the context of basin analysis, geohistory and sequences stratigraphic framework. Several tectonic models have been proposed for the evolution of the Witwater~rand basin and it seems as if a cratonic foreland basin accounts for many of the observed features observed the Central Rand Gr
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Elferink, Lisa. "The cenozoic stratigraphy and associated heavy mineral palaeo-placer deposit on Geelwal Karoo : West Coast, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/21452.

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ENGLISH ABSTRACT: The farm Geelwal Karoo is situated some 16km north of the Olifants River mouth on the West Coast of South Africa and hosts fluvial, marine and aeolian deposits of post-Gondwana age. The oldest basal fluvial succession, unconformably overlies Proterozoic and Palaeozoic basement rocks and is in turn capped by aeolianite and littoral packages representing two transgressive cycles. The fluvial channel clay succession is deposited in shallow bedrock-incised channels, has a wedge-shape and is deposited parallel to the present coastline. The flow direction is along the coast an
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Rau, Grant. "A geological evaluation of marine diamond placer deposits on the central Namibian inner shelf : a case study of the Hottentot Bay area." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1007554.

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This study focusses on the marine diamond placers within Exclusive Prospecting Licence 1950 and Mining Licence 103a, located northwest of the north-facing Hottentot Bay which is 60 km north of Lüderitz, along the central Namibian coastline. The thesis follows the natural geological evolution of the marine placer deposit from primary source, through alluvial and/or glacial transportation, concentration along the coastline by wave, aeolian and alluvial/sheet-wash processes and finally marine diamond placer preservation. All of these processes are reviewed as they are important in understanding o
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Gauntlett, Ernest John Herbert. "A geochemical and morphological investigation of placer gold grains from the southern Seward Peninsula, Alaska : implications for source and transport mechanisms." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1018202.

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[Partial abstract]: This study presents the first detailed geochemical and morphological characterisation of gold grains from the southern Seward Peninsula, Alaska, a region with significant historical and on-going placer gold mining. Quantitative Au, Ag, Hg, and Cu data are presented for gold grains from eleven sites. Additionally, quantitative Te, W, As, and Sb trace element data are presented for gold grains from ten of the eleven sites. Although it is acknowledged that quantitative trace element analysis of gold grains is a relatively new endeavour, the limited trace element data obtained
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Sofield, Clifford M. "Placed deposits in early and middle Anglo-Saxon rural settlements." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:b878e1cd-21a3-449a-8a18-d1ad8d728a26.

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Placed deposits have received increasing attention over the past 30 years, particularly in prehistoric British archaeology. Although disagreement still exists over the definition, identification, and interpretation of placed deposits, significant advances have been made in theoretical and methodological approaches to placed deposits, as researchers have gradually moved away from relatively crude ‘ritual’ interpretations toward more nuanced considerations of how placed deposits may have related to daily lives, social networks, and settlement structure, as well as worldview. With the exception o
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Smith, Kelly C. "Source and occurrence of placer gold in central Ross County, Ohio." Connect to this title online, 1992. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1100622082.

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Books on the topic "Placer deposits"

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1936-, Yeend Warren E., Shawe Daniel R. 1925-, and Wier Kenneth L. 1914-, eds. Gold in placer deposits. Dept. of the Interior, 1990.

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Lampright, Richard L. Gold placer deposits near Anchorage, Alaska. 2nd ed. Iron Fire Publications, 1997.

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J, Nokleberg Warren, ed. Significant metalliferous lode deposits and placer districts of Alaska. U.S. G.P.O., 1987.

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D, Izbekov Ė. Sistema korennoĭ istochnik: Rossypʹ. I͡A︡kutskiĭ nauchnyĭ t͡s︡entr SO RAN, 1995.

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Shilo, N. A. Uchenie o rossypi͡akh: Teorii͡a rossypeobrazui͡ushchikh rudnykh format͡siĭ i rossypeĭ. 2nd ed. Dalʹnauka, 2002.

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D, Morrison Paul, ed. Placer gold deposits of the Sierra Nevada. Gem Guides Book Co., 1997.

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Hiller, John. New England placer gold. 2nd ed. J. Hiller, 1992.

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Silva, Michael A. Placer gold recovery methods. Division of Mines and Geology, 1986.

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Akimov, L. V. Geologo-geomorfologicheskie osnovy poiskov i prognozirovanii͡a rossypeĭ na Urale. Komi nauchnyĭ t͡sentr Uro AN SSSR, 1988.

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National Seminar on Development Planning of Coastal Placer Minerals (2005 Manonmanium Sundaranar University). National Seminar on Development Planning of Coastal Placer Minerals: PLACER--2005. Edited by Loveson V. J. 1962-, Chandrasekar N, Sinha A, Man̲ōn̲maṇiyam Cuntaran̲ār Palkalaikkal̲akam, and Central Mining Research Institute (Dhanbad, India). Allied Publishers, 2005.

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Book chapters on the topic "Placer deposits"

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Kudrass, Hermann. "Placer Deposits." In Encyclopedia of Marine Geosciences. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-6644-0_31-1.

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Komar, Paul D. "Placer Deposits." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-93806-6_246.

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Komar, Paul D. "Placer Deposits." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-48657-4_246-2.

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Roonwal, Ganpat Singh. "Placer Deposits." In The Indian Ocean: Exploitable Mineral and Petroleum Resources. Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-95501-3_4.

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Merlin, Mark D., Patrick D. Nunn, John C. Kraft, et al. "Placer Deposits." In Encyclopedia of Coastal Science. Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-3880-1_246.

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Semeihan, Tankhain, and Uyanga Bold. "Placer Gold Deposits." In Modern Approaches in Solid Earth Sciences. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5943-3_4.

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Minter, W. E. L. "Ancient placer gold deposits." In Gold metallogeny and exploration. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4613-0497-5_9.

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Minter, W. E. L. "Ancient placer gold deposits." In Gold Metallogeny and Exploration. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2128-6_9.

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Yannopoulos, J. C. "Treatment of Placer Deposits." In The Extractive Metallurgy of Gold. Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-8425-0_3.

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Spellman, Frank R. "Placer Rare Earth Elements Deposits." In The Science of Rare Earth Elements. CRC Press, 2022. http://dx.doi.org/10.1201/9781003350811-9.

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Conference papers on the topic "Placer deposits"

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Khoiutanov, Evgenii, Natalia Batugina, Vladislav Fedorov, and Yurii Andreev. "ASSESSMENT AND PROSPECTS FOR DEVELOPMENT OF COAL RESOURCE POTENTIAL OF THE NORTH-EAST ARCTIC ZONE OF THE REPUBLIC OF SAKHA (YAKUTIA)." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s03.29.

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The article analyzes the mineral and raw material base of coal deposits of the Arctic zone of the Republic of Sakha (Yakutia), all of them were explored in the Soviet time in the middle of 40-50 years. The paper presents a comparative characteristic of the geographic and economic, mining and geological and geotechnological conditions of coal deposits in the basins of north rivers Jana and Indigirka. The qualitative characteristics of the coals have been studied, which showed that from the point of view of consumers from the local better are the coals of the Krasnorechenskoe and Tikhonskoe depo
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El-Sharif, M., S. Ma, and C. U. Chisholm. "Studies on the Structure and Corrosion Properties of Chromium Coatings Produced by High Speed Plating." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95595.

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Abstract A high speed electrodeposition process has been developed and employed to deposit hard chromium at high rate of deposition (300 µm/hr) from chromium (III) electrolyte. The deposit's quality, structure, microhardness and corrosion properties has been examined and related to the prevailing, hydrodynamic conditions of deposition. X-ray diffraction show that the as-deposited chromium to be microcrystallin. The microhardness, corrosion properties and the structural changes which takes place during heat treatment are also presented.
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Roberts, Thomas P., and James D. Willis. "Common Deposits and Their Influence on Corrosion in the Pulp and Paper Industry." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95502.

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Abstract Deposits commonly encountered throughout the Pulp and Paper Industry are generally classified as microbial or non-microbial. Both of these categories can be further subdivided into a variety of classes, within which all common deposits can be placed. Despite the variety of deposits encountered, the corrosion problems posed by the presence of the deposits are few. Quite simply, environments beneath deposits promote localized attack, i.e. under-deposit attack. General corrosion can also be promoted by the chemicals and procedures used to remove the deposits from equipment and piping sys
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Kunjapur, M. M., W. H. Hartt, and S. W. Smith. "Influence of Temperature on Calcareous Deposit Deposition upon Cathodically Polarized Steel in Seawater." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85316.

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Abstract Experiments have been performed where cylindrical 1018 steel specimens were polarized to -0.900v. (SCE) in natural seawater at 24 and 3°C and with rotation speeds of 0 and 0.83 Hz. The nature of the calcareous deposits which formed was characterized, first, by monitoring current density during the experiments and, second, by post-test SEM investigation of deposit morphology and thickness and by EDDS analysis of deposit composition. Analysis emphasis was placed upon distinctions between deposits formed at each of the two temperatures, and possible explanations for these have been evalu
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Shamso, Ahmed, Aboubakr Abdullah, Nick Laycock, and Mary Ryan. "Under-deposit Corrosion: Investigating Dissolution Kinetics Using Artificial Pits." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11055.

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Abstract Sour (H2S –containing) environments present a major problem for oil and gas industries: of particular concern is underdeposit corrosion (UDC) which is a type of accelerated localized corrosion observed under deposits (in this case typically iron-sulfides), creating a risk to asset integrity. The mechanism of UDC is not fully understood and there is no consensus on the methods used to evaluate UDC in pipelines. In this work, both planar electrode and 1-dimensional (1D) artificial pit experiments were performed (where the artificial pit acts as an anode in a three-electrode electrochemi
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Samant, A. K., and S. K. Singh. "Role of Microbial Induced Corrosion in Subsea Water Pipe Line Failure." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98280.

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Abstract Premature failure of subsea water injection pipelines due to rupture was observed in Indian offshore facilities. In this connection various contributing factors like metallurgy of pipeline, operating conditions and corrosion related parameters have been examined. Material defects that can lead to premature failure of pipelines like microstructural anomalies, variation in hardness and elemental composition and tensile strength etc. have been found within the specified limits of material specification. Analysis of various operating parameters and water quality data indicated failure due
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Sethi, Vijay K., and William Partanen. "Corrosion and Wear Issues in a Wood-Fired Gas Turbine System." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94172.

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Abstract A wood-fired gas turbine system for specialized cogeneration applications is being developed. The System is based on a patented pressurized, suspension-type combustor. A demonstration of the technical and economic viability of the integrated wood-fired System is being funded by the U.S. Department of Energy through Morgantown Energy Technology Center and the National Renewable Energy Laboratory, and Power Generating Incorporated, and the plans are underway to build and operate an approximately 400 kW prototype system at the Western Research Institute’s facilities in Laramie, Wyoming.
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Patel, Suresh, Patrick J. Sullivan, Frank O’Brien, Mark T. Muldoon, Dale V. Onisk, and James W. Stave. "Is There Enough Polymer in the Tower?" In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00329.

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Summary The concentration of active chemical components that control deposits and corrosion in cooling water systems is often derived from a combination of techniques ranging from mass balance to measuring "traceable" components of the formulation. An example of the latter would be the use of molybdate which can be easily measured in cooling water systems but does not provide any corrosion or deposit inhibiting activity at the dose concentration. As it is a "tag" to the cooling water formulation its concentration does not necessarily directly reflect the concentration of active components in t
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Tzachristas, A., R. E. Malamoudis, D. G. Kanellopoulou, et al. "Scale Formation and Wetting of Surfaces: a Microfluidics Investigation." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16605.

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ABSTRACT Multiphase flow processes taking place in oil production operations, CO2 and/or natural gas storage in underground reservoirs, in geothermal energy production, membrane operations etc., are accompanied with undesirable scale deposits formation either on rocks or on the walls of pores or metallic equipment, rendering the corresponding operations significantly less efficient. Scale formation depends not only on the morphology and structure but also on the wetting properties of the substrates on which scale is deposited or formed through nucleation and crystal growth. In the present work
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Oitseva, Tatyana. "GEOLOGICAL STRUCTURE AND MINERALOGICAL COMPOSITION OF THE KARA-AYAK RARE METAL ORE OCCURRENCE (EAST KAZAKHSTAN)." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s01.10.

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In the development of high technologies, �lightweight� - rare metals - are of great importance. Almost all modern devices: from a player to an electric bus cannot do without them. These metals are used in mechanical and aircraft manufacturing, digital technologies, and medicine; the implementation of a green program without them is generally impossible. According to statistical forecasts, the need for rare metals will only grow every year. During the Soviet period, most of the rare metal deposits were mined; small ore occurrences were not considered due to low contents and reserves. Currently,
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Reports on the topic "Placer deposits"

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Morison, S. R. Placer Deposits in Canada [Chapter 11: Quaternary Resources in Canada]. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/131682.

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Shilts, W. W., and S. L. Smith. Stratigraphy of Placer Gold Deposits: Overburden Drilling in Chaudiere Valley, Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/120442.

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McLemore, Virginia T., John Asafo-Akowuah, and Alanna Robison. Mineral resource assessment of heavy mineral, beach-placer sandstone deposits at Apache Mesa, Jicarilla Apache reservation, Rio Arriba county, New Mexico. New Mexico Bureau of Geology and Mineral Resources, 2016. http://dx.doi.org/10.58799/ofr-587.

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O'Keeffe, Michael, Marieke Dechesne, Matthew L. Morgan, et al. RS-48 Beach Placer Mineral Deposits along Localized Paleoshorelines of the Western Interior Seaway, Upper Cretaceous Fox Hills Sandstone, Eastern Denver Basin, Colorado. Colorado Geological Survey, 2021. http://dx.doi.org/10.58783/cgs.rs48.kzgr9849.

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Pack, David. PR-616-17607-R01 Sulfur Condensation in Pressure Reduction Equipment. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011615.

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In natural gas transmission pipelines systems, there is a growing awareness of contamination due to the presence of sulfur vapor in the gas stream at sub ppm levels. Particularly at pressure reduction facilities, the sulfur vapor can desublimate out as solid elemental sulfur and then combine with other particle matter and trace liquids in the gas stream to form the observed contamination deposits. In order to better control the formation of the elemental sulfur, an improved understanding of the contribution that the design of pressure regulators make to this desublimation process is required.
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Bundtzen, T. K. Prospect examination of a gold-tungsten placer deposit at Alder Creek, Vinasale Mountain area, western Alaska. Alaska Division of Geological & Geophysical Surveys, 1986. http://dx.doi.org/10.14509/1190.

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Anderson, Zachary W., Greg N. McDonald, Elizabeth A. Balgord, and W. Adolph Yonkee. Interim Geologic Map of the Browns Hole Quadrangle, Weber and Cache Counties, Utah. Utah Geological Survey, 2023. http://dx.doi.org/10.34191/ofr-760.

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The Browns Hole quadrangle is in Weber and Cache Counties of northern Utah and covers the eastern part of Ogden Valley, a rapidly developing area of the Wasatch Range. The Middle and South Forks of the Ogden River bisect the quadrangle and are important watersheds and recreational areas to the communities of Ogden Valley and the Wasatch Front. The towns of Huntsville and Eden are just west of the quadrangle, unincorporated communities with year-round residents are present throughout the quadrangle, and numerous summer-cabin communities are present in the eastern part of the quadrangle. A porti
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Chriscoe, Mackenzie, Rowan Lockwood, Justin Tweet, and Vincent Santucci. Colonial National Historical Park: Paleontological resource inventory (public version). National Park Service, 2022. http://dx.doi.org/10.36967/nrr-2291851.

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Colonial National Historical Park (COLO) in eastern Virginia was established for its historical significance, but significant paleontological resources are also found within its boundaries. The bluffs around Yorktown are composed of sedimentary rocks and deposits of the Yorktown Formation, a marine unit deposited approximately 4.9 to 2.8 million years ago. When the Yorktown Formation was being deposited, the shallow seas were populated by many species of invertebrates, vertebrates, and micro-organisms which have left body fossils and trace fossils behind. Corals, bryozoans, bivalves, gastropod
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Pagliacci, Carolina, and Ana María Chirinos-Leañez. Credit Supply in Venezuela: A Non-Conventional Bank Lending Channel? Inter-American Development Bank, 2017. http://dx.doi.org/10.18235/0011796.

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This paper evaluates whether fiscal and foreign exchange policy shocks canexplain both credit and credit supply in Venezuela. Empirical evidence suggests that between 65 and 90 percent of credit growth is linked to the buildup of banks' deposits caused by the monetary effects of fiscal expansions. For these cases, since credit is provided at equal or reduced interest rates, credit supply takes place. Loan supply can occur either endogenously, when fiscal domestic spending increases with expansionary aggregate supply shocks, or exogenously, when fiscal policy shocks emerge. The role of exogenou
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Løvschal, Mette, and Havananda Ombashi. Palynological Sampling in Western Jutland 2021-22: Anthea Work Package #2. Det Kgl. Bibliotek, 2023. http://dx.doi.org/10.7146/aulsps-e.478.

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A palynological sampling programme was carried out in three areas of Western Jutland in 2021-22. Our goal was to collect new sediment samples from archaeological excavations and peat deposits to reconstruct patterns in past heathland use and development. The location of the case areas was determined by the potential of the sites for combination with existing palynological data (Solsø Hede) and/or archaeological data (the Vejen area). At Solsø Hede, a pollen core was obtained near Solsø. At Vejen, two separate sediment collections took place. To the north of Vejen, in Gammelby Mose, peat sedime
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