DOI: 10.1002/2015GL066475
论文题名: Triple oxygen isotope signatures in evaporated water bodies from the Sistan Oasis, Iran
作者: Surma J. ; Assonov S. ; Bolourchi M.J. ; Staubwasser M.
刊名: Geophysical Research Letters
ISSN: 0094-9266
EISSN: 1944-8997
出版年: 2015
卷: 42, 期: 20 起始页码: 8456
结束页码: 8462
语种: 英语
英文关键词: 17O-excess
; oxygen triple isotopes
; relative humidity
; Sistan hydrology
; stable isotope hydrology
; water evaporation trends in arid regions
Scopus关键词: Atmospheric humidity
; Evaporation
; Hydrology
; Oxygen
; 17O-excess
; Ambient conditions
; Arid environments
; Evaporation loss
; Semi-arid environments
; Stable isotope hydrologies
; Triple oxygen isotopes
; Water evaporation
; Isotopes
; arid region
; evaporation
; extreme event
; oxygen isotope
; recharge
; relative humidity
; sampling
; stable isotope
; trend analysis
; Iran
; Sistan Basin
英文摘要: Natural samples from water bodies in the arid and semiarid environment of the Sistan Oasis, Iran, demonstrate a systematic evolution of 17O-excess and δ18O as a result of nonequilibrium fractionation during extreme evaporation. Residual water samples exhibit a significant and systematic decrease of 17O-excess with progressive evaporation loss, reaching values of -160 per meg over a 35‰ range of δ18O. Waters from heavily evaporated volume-limited natural bodies with limited or no recharge fall on the theoretically predicted isotopic evolution curve in agreement with ambient relative humidity of 30 to 35%. Recharged water bodies appear to follow a different trend. These new results demonstrate the potential of 17O-excess for the estimation of evaporation loss and ambient conditions in an arid environment. Key Points Triple oxygen isotope evaporation trend demonstrated for the Sistan Oasis, Iran 17O-excess modeled from rH and δ18O of initial water and ambient vapor 17O-excess in naturally evaporated waters reflects mean rH and evaporation loss © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946592787&doi=10.1002%2f2015GL066475&partnerID=40&md5=c8141a60dd7ee26b94d358c60c4be6d6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8882
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute of Geology and Mineralogy, University of Cologne, Cologne, Germany
Recommended Citation:
Surma J.,Assonov S.,Bolourchi M.J.,et al. Triple oxygen isotope signatures in evaporated water bodies from the Sistan Oasis, Iran[J]. Geophysical Research Letters,2015-01-01,42(20).