Characteristics of element dispersion and geochemical exploration for concealed ore deposits overlain by loess and red soil in eastern Gansu Province, China

Ren, Tianxiang; Yang, Shan; Liu, Yinghan

doi:10.1016/0375-6742(95)00022-4

Cited by 10 publications

(1 citation statement)

References 1 publication

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“…The migration mechanism of transportation by geogas has been proposed and studied for decades [3,9,12,18,[56][57][58]. Nano-scale metal-bearing particles can be adsorbed onto the surfaces of gas bubbles and migrate with the bubbles upwards.…”

Section: Migration Mechanism Of Metallic Nanoparticles From Mineralizmentioning

confidence: 99%

Metal-Bearing Nanoparticles Observed in Soils and Fault Gouges over the Shenjiayao Gold Deposit and Their Significance

Zhang¹,

Han²,

Wang³

et al. 2019

Minerals

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Mineral deposits concealed by thick cover sequences present special problems for geochemical exploration. A variety of penetrating geochemical methods have been developed in the last few decades to explore for buried deposits. The theoretical basis of the mechanism by which metals migrate upward from buried deposits through the cover to the surface is still not fully understood. One hypothesis is that metal particles or metal elements could be carried onto bubbles or micro-flow of geogas and migrate upward to the surface. After years of study, nano-scale metal-bearing particles have been widely observed in geogas samples from different kinds of concealed deposits. However, the occurrence of these metal-bearing particles carried by geogases in near-surface media, such as soil, has not been studied in detail. In this study, metal-bearing nanoparticles were observed in samples from soils and fault gouges over the Shenjiayao gold deposit. The results indicate that (1) the ore-forming elements in soils can only come from deep-seated ore bodies and they occur in nanoparticles in the study area; (2) there is an obvious relationship between metal nanoparticles in fault gouges and soils; (3) the metallic nanoparticles in fault gouges represent a transitional phase along the whole vertical migration process. In addition, the observation results show that the metal-bearing nanoparticles tend to be adsorbed on the surface of clay minerals, which provide theoretical support for using fine fraction soils as sampling media to carry out geochemical exploration in sediment-covered terrains. Based on the results and discussion, a simple migration model was built in this paper.

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Section: Migration Mechanism Of Metallic Nanoparticles From Mineralizmentioning

confidence: 99%

Metal-Bearing Nanoparticles Observed in Soils and Fault Gouges over the Shenjiayao Gold Deposit and Their Significance

Zhang¹,

Han²,

Wang³

et al. 2019

Minerals

View full text Add to dashboard Cite

show abstract

Application of the fine-grained soil prospecting method in a loess-covered area of central China

Lu¹,

Zhang²,

Wang³

et al. 2022

Applied Geochemistry

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Pilot study of partial extraction geochemistry for base metal exploration in a thick loess-covered region

Wang

He²,

Yan

et al. 2015

Journal of Geochemical Exploration

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Characteristics of element dispersion and geochemical exploration for concealed ore deposits overlain by loess and red soil in eastern Gansu Province, China

Cited by 10 publications

References 1 publication

Metal-Bearing Nanoparticles Observed in Soils and Fault Gouges over the Shenjiayao Gold Deposit and Their Significance

Metal-Bearing Nanoparticles Observed in Soils and Fault Gouges over the Shenjiayao Gold Deposit and Their Significance

Application of the fine-grained soil prospecting method in a loess-covered area of central China

Pilot study of partial extraction geochemistry for base metal exploration in a thick loess-covered region

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