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Geology, geochemistry and formation ...

Bowell, Robert J.

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Geology, geochemistry and formation of supergene mineral deposits in deeply weathered terrain

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Geology, geochemistry and formation of supergene mineral deposits in deeply weathered terrain/ edited by Robert J. Bowell, Charles R. M. Butt.
其他作者:	Bowell, Robert J.
出版者:	Cham :Springer Nature Switzerland : : 2025.,
面頁冊數:	viii, 420 p. :ill. (some col.), digital ;24 cm.
內容註:	1 Introduction -- 2 Geochemistry of supergene processes -- 3 Geology of supergene deposits -- 4 Formation of supergene deposits -- 5 ulfide oxidation and gossan formation -- 6 Tropical weathering model (lateritic, ferrasol and podsol sub-types) -- 7 Glaciation weathering model and profile denudation -- 8 Caliche weathering model -- 9 Groundwater mobilization and enrichment -- 10 Surface water physical erosion model -- 11 Immature digenesis model.
Contained By:	Springer Nature eBook
標題:	Ore deposits. -
電子資源:	https://doi.org/10.1007/978-3-031-75733-4
ISBN:	9783031757334

Geology, geochemistry and formation of supergene mineral deposits in deeply weathered terrain
Geology, geochemistry and formation of supergene mineral deposits in deeply weathered terrain[electronic resource] /edited by Robert J. Bowell, Charles R. M. Butt. - Cham :Springer Nature Switzerland :2025. - viii, 420 p. :ill. (some col.), digital ;24 cm. - Mineral resource reviews,2365-0567. - Mineral resource reviews..

1 Introduction -- 2 Geochemistry of supergene processes -- 3 Geology of supergene deposits -- 4 Formation of supergene deposits -- 5 ulfide oxidation and gossan formation -- 6 Tropical weathering model (lateritic, ferrasol and podsol sub-types) -- 7 Glaciation weathering model and profile denudation -- 8 Caliche weathering model -- 9 Groundwater mobilization and enrichment -- 10 Surface water physical erosion model -- 11 Immature digenesis model.

This book provides a comprehensive overview of the major supergene mineral deposits formed in intensely weathered lateritic terrains. It discusses both contemporary and pre-existing supergene deposits, describing their geological, mineralogical and geochemical characteristics. Supergene processes of enrichment are those that occur under ambient near-surface conditions, compared to hypogene processes mostly at depth under higher temperatures and pressures. Supergene processes include the predominance of meteoric water circulation with concomitant oxidation and chemical weathering. Descending meteoric waters oxidize the primary (hypogene) minerals and redistribute the chemical elements. Residual supergene enrichment occurs as a physical process when the predominant rock-forming minerals oxidize and dissolve, concentrating ore elements hosted in resistant stable minerals; absolute chemical enrichment occurs when the ore elements themselves are leached and migrate in groundwater and precipitate due changes in the pH, oxidation potential and chemical composition of water. These processes can enrich commercially important elements to produce orebodies formed entirely by supergene processes. These include Al (bauxite), Fe ore, Ni-Co laterites, kaolinite, REE (clay deposits), Nb and REE (on carbonatites), base metals (secondary sulfides and oxidate minerals including gossans), gold and surficial U (in calcretes).

ISBN: 9783031757334

Standard No.: 10.1007/978-3-031-75733-4doiSubjects--Topical Terms:

559372
Ore deposits.

LC Class. No.: QE390

Dewey Class. No.: 553.1

Geology, geochemistry and formation of supergene mineral deposits in deeply weathered terrain
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505 0 $a 1 Introduction -- 2 Geochemistry of supergene processes -- 3 Geology of supergene deposits -- 4 Formation of supergene deposits -- 5 ulfide oxidation and gossan formation -- 6 Tropical weathering model (lateritic, ferrasol and podsol sub-types) -- 7 Glaciation weathering model and profile denudation -- 8 Caliche weathering model -- 9 Groundwater mobilization and enrichment -- 10 Surface water physical erosion model -- 11 Immature digenesis model.
520 $a This book provides a comprehensive overview of the major supergene mineral deposits formed in intensely weathered lateritic terrains. It discusses both contemporary and pre-existing supergene deposits, describing their geological, mineralogical and geochemical characteristics. Supergene processes of enrichment are those that occur under ambient near-surface conditions, compared to hypogene processes mostly at depth under higher temperatures and pressures. Supergene processes include the predominance of meteoric water circulation with concomitant oxidation and chemical weathering. Descending meteoric waters oxidize the primary (hypogene) minerals and redistribute the chemical elements. Residual supergene enrichment occurs as a physical process when the predominant rock-forming minerals oxidize and dissolve, concentrating ore elements hosted in resistant stable minerals; absolute chemical enrichment occurs when the ore elements themselves are leached and migrate in groundwater and precipitate due changes in the pH, oxidation potential and chemical composition of water. These processes can enrich commercially important elements to produce orebodies formed entirely by supergene processes. These include Al (bauxite), Fe ore, Ni-Co laterites, kaolinite, REE (clay deposits), Nb and REE (on carbonatites), base metals (secondary sulfides and oxidate minerals including gossans), gold and surficial U (in calcretes).
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