干旱区生态环境知识资源中心(Arid): Identification of the expression of earthquake-induced surface flooding by groundwater using detailed regolith mapping at the buried Atlantida Deposit, northern Chile

Arid

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
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.