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TYPES OF GOLD PLACERS OF THE AMYL-SISTIGKHEM PLACER REGION, WEST SAYAN [PDF]
МинералогияNative gold from seven placers of the Amyl-Sistighem ore placer region (the Republic of Tyva, Krasnoyarsk region) is classified on the basis of its structure, morphology and chemical composition, which are studied by optical and electronic microscopy ...
Ch.M. Khertek, A.M. Sazonov
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Effects of human alterations on the hydrodynamics and sediment transport in the Sacramento-San Joaquin Delta, California [PDF]
Proceedings of the International Association of Hydrological Sciences, 2015 The Sacramento-San Joaquin Delta, California, (Delta) has been significantly altered since the mid-nineteenth century. Many existing channels have been widened or deepened and new channels have been created for navigation and water conveyance.
M. D. Marineau, S. A. Wright
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Land subsidence in the San Joaquin Valley, California, USA, 2007–2014 [PDF]
Proceedings of the International Association of Hydrological Sciences, 2015 Rapid land subsidence was recently measured using multiple methods in two areas of the San Joaquin Valley (SJV): between Merced and Fresno (El Nido), and between Fresno and Bakersfield (Pixley).
M. Sneed, J. T. Brandt
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Recovery of total heavy minerals using gravity concentrators on lean and off grade beach sands [PDF]
Journal of Mining and Metallurgy. Section A: Mining, 2023 In the present investigation, an attempt is made to synergize the effects of textural, physical and chemical characteristics of placer deposits. These deposits are associated with lean and off-grade placer heavy minerals, which typically exhibit ...
Singh D., Mishra B., Bhima Rao R.
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International Journal of Applied Earth Observations and Geoinformation, 2021 Placer mining is a mineral extraction method in floodplains that involves the removal of earth material to access mineral-laden sediments, a process that can have significant and long-term impacts on aquatic ecosystems.
Karim Malik +3 more
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Placer y malestar en el trabajo: estudio de caso en futbolistas profesionales de equipos antioqueños
Psicoespacios, 2022 Esta investigación describe las experiencias de placer y malestar en el trabajo de un grupo de futbolistas profesionales de equipos antioqueños. Metodológicamente se clasifica como estudio de caso, de alcance descriptivo, de enfoque cualitativo y de ...
Ricardo Cadavid Suárez +2 more
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Witwatersrand composite paleoplacers
Известия высших учебных заведений: Геология и разведка, 2021 Background. The Witwatersrand gold province located in South Africa is the richest in the world. The Witwatersrand deposits are composite, where osmirids and diamonds are mined along with gold, silver and uranium.
V. A. Stepanov
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La figura del lector popular en Quimantú: placer, trabajo y revolución
Kamchatka: Revista de Análisis Cultural, 2021 A pesar de que Quimantú es una de las políticas culturales más relevantes de la Unidad Popular, la figura del lector popular ha sido poco estudiada. Proponemos indagar en los contornos de esta figura a través del análisis de la producción editorial de ...
Christian Anwandter Donoso
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Geosciences, 2023 The Murcielago gold placer is located in the Lepaguare Valley, Olancho Department (Central Honduras). The placer mineralogy includes silicates (quartz, garnets, amphibole, Ca-pyroxene, micas, epidote, and tourmaline); calcite; and in the heavy fraction ...
Sabrina Nazzareni +6 more
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