Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.gexplo.2015.06.007 |
Three-dimensional geochemical patterns of regolith over a concealed gold deposit revealed by overburden drilling in desert terrains of northwestern China | |
Zhang, Bimin1,2,3; Wang, Xueqiu2,3; Chi, Qinghua2,3; Yao, Wensheng2,3; Liu, Hanliang2,3; Lin, Xin2,3 | |
通讯作者 | Zhang, Bimin |
来源期刊 | JOURNAL OF GEOCHEMICAL EXPLORATION
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ISSN | 0375-6742 |
EISSN | 1879-1689 |
出版年 | 2016 |
卷号 | 164页码:122-135 |
英文摘要 | Desert terrains are widespread in northwestern and northern China, and these areas present particular challenges for exploration. In recent years, partial extraction techniques have been proven to be effective in the search for concealed deposits in arid desert terrains in some cases. However, we still lack an understanding of the dispersion patterns of ore-forming elements in regolith. In this study, air reverse circulation drillings were used to create three-dimensional (3D) distribution patterns of elements in regolith over the Jinwozi gold deposit in China, which is covered by tens of metres of regolith, in order to trace the migration of elements and to understand the dispersion mechanisms. The 3D distribution maps of elements show that (1) coherent anomalies occur at different depths of transported cover over the ore body, (2) Au tends to be enriched in the top and bottom horizons and depleted in the middle horizon in the vertical direction, (3) the anomalous distribution of Au at the bottom is restricted to places at the interface of sediments and bedrock, and (4) the anomaly in the bottom sediments is confined to a width of tens of metres, whereas that in top soils is much wider and can extend up to several kilometres. In addition, close positive correlations were found between the As, Hg, and Au distributions. (C) 2015 Elsevier B.V. All rights reserved. |
英文关键词 | Geochemical patterns Concealed deposit Overburden drilling Desert terrains |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000373549200013 |
WOS关键词 | THICK GLACIAL OVERBURDEN ; ENZYME LEACH ; EXPLORATION ; ANOMALIES ; MINERALIZATION ; EXTRACTIONS ; PROPERTY ; VARNISH ; REDOX ; PH |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194431 |
作者单位 | 1.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China; 2.CAGS, Inst Geophys & Geochem Explorat, Langfang 065000, Peoples R China; 3.MLR, Key Lab Geochem Explorat Technol, Langfang 065000, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Bimin,Wang, Xueqiu,Chi, Qinghua,et al. Three-dimensional geochemical patterns of regolith over a concealed gold deposit revealed by overburden drilling in desert terrains of northwestern China[J],2016,164:122-135. |
APA | Zhang, Bimin,Wang, Xueqiu,Chi, Qinghua,Yao, Wensheng,Liu, Hanliang,&Lin, Xin.(2016).Three-dimensional geochemical patterns of regolith over a concealed gold deposit revealed by overburden drilling in desert terrains of northwestern China.JOURNAL OF GEOCHEMICAL EXPLORATION,164,122-135. |
MLA | Zhang, Bimin,et al."Three-dimensional geochemical patterns of regolith over a concealed gold deposit revealed by overburden drilling in desert terrains of northwestern China".JOURNAL OF GEOCHEMICAL EXPLORATION 164(2016):122-135. |
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