Arid
DOI10.1007/s10482-018-1024-x
Geology and geochemistry of the Atacama Desert
Tapia, J.1; Gonzalez, R.2; Townley, B.3,4; Oliveros, V.5; Alvarez, F.5; Aguilar, G.3; Menzies, A.2; Calderon, M.6
通讯作者Tapia, J.
来源期刊ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
ISSN0003-6072
EISSN1572-9699
出版年2018
卷号111期号:8页码:1273-1291
英文摘要

The Atacama Desert, the driest of its kind on Earth, hosts a number of unique geological and geochemical features that make it unlike any other environment on the planet. Considering its location on the western border of South America, between 17 and 28 A degrees S, its climate has been characterized as arid to hyperarid for at least the past 10 million years. Notably dry climatic conditions of the Atacama Desert have been related to uplift of the Andes and are believed to have played an important role in the development of the most distinctive features of this desert, including: (i) nitrates and iodine deposits in the Central Depression, (ii) secondary enrichment in porphyry copper deposits in the Precordillera, (iii) Li enrichment in salt flats of the Altiplano, and (iv) life in extreme habitats. The geology and physiography of the Atacama Desert have been largely shaped by the convergent margin present since the Mesozoic era. The geochemistry of surface materials is related to rock geochemistry (Co, Cr, Fe, Mn, V, and Zn), salt flats, and evaporite compositions in endorheic basins (As, B, and Li), in addition to anthropogenic activities (Cu, Mo, and Pb). The composition of surface water is highly variable, nonetheless in general it presents a circumneutral pH with higher conductivity and total dissolved solids in brines. Major water constituents, with the exception of HCO3 (-), are generally related to the increase of salinity, and despite the fact that trace elements are not well-documented, surface waters of the Atacama Desert are enriched in As, B, and Li when compared to the average respective concentrations in rivers worldwide.


英文关键词Atacama Desert Geology Geochemistry Mineral deposits
类型Article
语种英语
国家Chile
收录类别SCI-E
WOS记录号WOS:000439732000003
WOS关键词PORPHYRY COPPER-DEPOSIT ; NORTH CHILEAN ANDES ; U-PB GEOCHRONOLOGY ; HYPERARID ATACAMA ; CLIMATE-CHANGE ; CU DEPOSITS ; ENVIRONMENTAL-IMPACT ; NITRATE DEPOSITS ; GRANITIC-ROCKS ; SANDY BEACHES
WOS类目Microbiology
WOS研究方向Microbiology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207579
作者单位1.Univ Austral Chile, Fac Ciencias, Inst Ciencias Tierra, Valdivia, Chile;
2.Univ Catolica Norte, Fac Ingn & Ciencias Geol, Dept Ciencias Geol, Antofagasta, Chile;
3.Univ Chile, Fac Ciencias Fis & Matemat, Adv Min Technol Ctr, Santiago, Chile;
4.Univ Chile, Fac Ciencias Fis & Matemat, Dept Geol, Santiago, Chile;
5.Univ Concepcion, Dept Ciencias Tierra, Concepcion, Chile;
6.Univ Andres Bello, Fac Ingn, Carrera Geol, Sazie 2119, Santiago, Chile
推荐引用方式
GB/T 7714
Tapia, J.,Gonzalez, R.,Townley, B.,et al. Geology and geochemistry of the Atacama Desert[J],2018,111(8):1273-1291.
APA Tapia, J..,Gonzalez, R..,Townley, B..,Oliveros, V..,Alvarez, F..,...&Calderon, M..(2018).Geology and geochemistry of the Atacama Desert.ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY,111(8),1273-1291.
MLA Tapia, J.,et al."Geology and geochemistry of the Atacama Desert".ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY 111.8(2018):1273-1291.
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