Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.oregeorev.2015.08.018 |
The development of regolith exploration geochemistry in the tropics and sub-tropics | |
Butt, C. R. M. | |
通讯作者 | Butt, C. R. M. |
来源期刊 | ORE GEOLOGY REVIEWS
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ISSN | 0169-1368 |
EISSN | 1872-7360 |
出版年 | 2016 |
卷号 | 73页码:380-393 |
英文摘要 | This essay traces the development of geochemical exploration from its early beginnings in the modern era during the 1930s, concentrating especially in its application to deeply weathered terrain in the tropics and sub-tropics. Following promising results obtained in temperate regions in North America and Europe, test orientation surveys were conducted to see whether similar procedures were applicable in the tropics, where conventional geological prospecting was largely precluded due to the extensive cover of a deep lateritic regolith and consequent lack of outcrop. After initial work in Sierra Leone and Nigeria, the emphasis transferred to East Africa in the 1950s and 1960s, aimed principally at Cu exploration. Many of the basic principles for exploration in dominantly residual, free-draining terrain were quickly established in this period. Exploration in terrains with more complex weathering histories, however, raised a number of difficulties due to leaching and secondary concentrations of elements, problems in selecting and identifying appropriate sample media, and extensive transported overburden. These were encountered especially in more arid regions in Australia and Africa during exploration for Ni and Au during the 1970s and 1980s. This led to a change in approach, placing weathering and geochemical dispersion in the context of regolith and landscape evolution -a return to the early concept of landscape geochemistry. The 3D expression of mineralization in the landscape is depicted as empirical conceptual models, that account for both relict features and active processes, and portray element associations, dispersion mechanisms and host materials. They also indicate suitable sample media, sampling intervals and procedures for analysis and interpretation. Crown Copyright (C) 2015 Published by Elsevier B.V. All rights reserved. |
英文关键词 | Landscape geochemistry Lateritic terrain Weathering Sampling Analysis |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000366788100002 |
WOS关键词 | SCIENCE-AND-TECHNOLOGY ; WESTERN-AUSTRALIA ; MINERAL EXPLORATION ; IMPERIAL COLLEGE ; YILGARN CRATON ; CONCEPTUAL MODELS ; TRANSPORTED OVERBURDEN ; LATERITE GEOCHEMISTRY ; URANIUM DEPOSITS ; GOLD EXPLORATION |
WOS类目 | Geology ; Mineralogy ; Mining & Mineral Processing |
WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
来源机构 | Commonwealth Scientific and Industrial Research Organisation |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/195265 |
作者单位 | CSIRO Mineral Resources, Bentley, WA 6102, Australia |
推荐引用方式 GB/T 7714 | Butt, C. R. M.. The development of regolith exploration geochemistry in the tropics and sub-tropics[J]. Commonwealth Scientific and Industrial Research Organisation,2016,73:380-393. |
APA | Butt, C. R. M..(2016).The development of regolith exploration geochemistry in the tropics and sub-tropics.ORE GEOLOGY REVIEWS,73,380-393. |
MLA | Butt, C. R. M.."The development of regolith exploration geochemistry in the tropics and sub-tropics".ORE GEOLOGY REVIEWS 73(2016):380-393. |
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