Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1144/geochem2018-064 |
Identification of the expression of earthquake-induced surface flooding by groundwater using detailed regolith mapping at the buried Atlantida Deposit, northern Chile | |
Brown, A. E.1; Winterburn, P. A.1,2; Bissig, T.1,3 | |
通讯作者 | Brown, A. E. |
来源期刊 | GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS
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ISSN | 1467-7873 |
EISSN | 2041-4943 |
出版年 | 2019 |
卷号 | 19期号:4页码:474-486 |
英文摘要 | This paper describes saline pockets (10 cm-3 m in diameter) of fine-grained material distributed on alluvial surfaces. These saline pockets are localized along structural trends at the Atlantida buried porphyry-skarn Cu-Au-(Mo) deposit in the Atacama Region of Chile. The distribution and highly saline nature of the material suggest formation by the pooling and evaporation of groundwater forced through fractures to the surface during seismic activity. These saline pockets are a surface expression of the hydrological effects of seismic activity along faults. Saline pockets with similar distribution and characteristics were also identified at three additional alluvium-covered areas, all located in the Antofagasta Region of Chile. Identification and mapping of these saline pockets relies on the ability to identify the continuation of structures through overlying gravels. Regolith mapping using high-resolution drone imagery and digital elevation modelling identified geomorphic markers of faulting which aided mapping the distribution of saline pockets. Saline pockets provide a unique opportunity to sample the direct expression of transported groundwater reaching the surface from depth and provide a prime target medium for mineral exploration through transported gravels. |
英文关键词 | buried deposits exploration geochemistry geomorphology earthquake-induced surface flooding seismic pumping regolith mapping Chile |
类型 | Article |
语种 | 英语 |
国家 | Canada ; Chile |
收录类别 | SCI-E |
WOS记录号 | WOS:000493981300013 |
WOS关键词 | ATACAMA DESERT ; GEOCHEMICAL ANOMALIES ; COPPER ; MARKERS ; MARGIN ; BASIN ; TOOL |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
EI主题词 | 2019-11-01 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/310405 |
作者单位 | 1.Univ British Columbia, Dept Earth Ocean & Atmospher Sci, Mineral Deposit Res Unit, 2020-2207 Main Mall, Vancouver, BC V6T 1Z4, Canada; 2.Vale Explorac Chile, Rosario Norte 615 1202, Santiago, Chile; 3.Goldcorp Inc, 666 Burrard St 3400, Vancouver, BC V6C 2X8, Canada |
推荐引用方式 GB/T 7714 | Brown, A. E.,Winterburn, P. A.,Bissig, T.. Identification of the expression of earthquake-induced surface flooding by groundwater using detailed regolith mapping at the buried Atlantida Deposit, northern Chile[J],2019,19(4):474-486. |
APA | Brown, A. E.,Winterburn, P. A.,&Bissig, T..(2019).Identification of the expression of earthquake-induced surface flooding by groundwater using detailed regolith mapping at the buried Atlantida Deposit, northern Chile.GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS,19(4),474-486. |
MLA | Brown, A. E.,et al."Identification of the expression of earthquake-induced surface flooding by groundwater using detailed regolith mapping at the buried Atlantida Deposit, northern Chile".GEOCHEMISTRY-EXPLORATION ENVIRONMENT ANALYSIS 19.4(2019):474-486. |
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