DOI: 10.1002/2016GL070076
论文题名: Regional groundwater flow and accumulation of a massive evaporite deposit at the margin of the Chilean Altiplano
作者: Corenthal L.G. ; Boutt D.F. ; Hynek S.A. ; Munk L.A.
刊名: Geophysical Research Letters
ISSN: 0094-8788
EISSN: 1944-8519
出版年: 2016
卷: 43, 期: 15 起始页码: 8017
结束页码: 8025
语种: 英语
英文关键词: evaporite
; regional groundwater flow
; Salar de Atacama
Scopus关键词: Budget control
; Chloride minerals
; Groundwater flow
; Surface waters
; Watersheds
; Atacama
; Contributing areas
; Evaporites
; Ground water discharge
; Long residence time
; Plateau uplift
; Regional groundwater flow
; Water discharges
; Groundwater
英文摘要: Focused groundwater discharge in closed basins provides opportunities to investigate mechanisms for closing hydrologic and solute budgets in arid regions. The Salar de Atacama (SdA), adjacent to the Central Andean Plateau in the hyperarid Atacama Desert, provides an extreme example of halite (>1800 km3) and lithium brine (~5000 ppm) accumulation spanning late Miocene to present. Minimum long-term water discharge needed to sustain halite accumulation over this timescale at SdA is 9–20 times greater than modern recharge (and double wet-climate paleorecharge) within the topographic watershed. Closing this imbalance requires sourcing water from recharge on the orogenic plateau in an area over 4 times larger than the topographic watershed. Prolonged water discharge at SdA requires long residence times, deep water tables in recharge zones coupled with persistent near-surface water tables in discharge areas, and large contributing areas characterized by strong gradients in landscape and climate resulting from plateau uplift. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982871896&doi=10.1002%2f2016GL070076&partnerID=40&md5=c69fd051ee0af971832901e6cf4b8ccb
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9751
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Department of Geosciences, University of Massachusetts Amherst, Amherst, MA, United States
Recommended Citation:
Corenthal L.G.,Boutt D.F.,Hynek S.A.,et al. Regional groundwater flow and accumulation of a massive evaporite deposit at the margin of the Chilean Altiplano[J]. Geophysical Research Letters,2016-01-01,43(15).