globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2019.116029
论文题名:
Paratethys pacing of the Messinian Salinity Crisis: Low salinity waters contributing to gypsum precipitation?
作者: Grothe A.; Andreetto F.; Reichart G.-J.; Wolthers M.; Van Baak C.G.C.; Vasiliev I.; Stoica M.; Sangiorgi F.; Middelburg J.J.; Davies G.R.; Krijgsman W.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 532
语种: 英语
中文关键词: evaporites ; gypsum ; Mediterranean ; Miocene ; salinity ; strontium
英文关键词: Evaporation ; Gypsum ; Sodium chloride ; Strontium ; Surface waters ; Evaporites ; Gypsum precipitation ; Low-salinity water ; Mediterranean ; Messinian salinity crisis ; Miocene ; salinity ; Surface water layer ; Saline water ; evaporite ; gypsum ; Messinian ; ostracod ; precipitation (chemistry) ; salinity ; strontium isotope ; Tethys ; Mediterranean Sea ; Ostracoda
英文摘要: During the so-called Messinian Salinity Crisis (MSC: 5.97-5.33 Myr ago), reduced exchange with the Atlantic Ocean caused the Mediterranean to develop into a “saline giant” wherein ∼1 million km3 of evaporites (gypsum and halite) were deposited. Despite decades of research it is still poorly understood exactly how and where in the water column these evaporites formed. Gypsum formation commonly requires enhanced dry conditions (evaporation exceeding precipitation), but recent studies also suggested major freshwater inputs into the Mediterranean during MSC-gypsum formation. Here we use strontium isotope ratios of ostracods to show that low-saline water from the Paratethys Seas actually contributed to the precipitation of Mediterranean evaporites. This apparent paradox urges for an alternative mechanism underlying gypsum precipitation. We propose that Paratethys inflow would enhance stratification in the Mediterranean and result in a low-salinity surface-water layer with high Ca/Cl and SO4/Cl ratios. We show that evaporation of this surface water can become saturated in gypsum at a salinity of ∼40, in line with salinities reported from fluid inclusions in MSC evaporites. © 2019 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/164998
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Department of Earth Sciences, Utrecht University, Princetonlaan 8A, Utrecht, 3584 CB, Netherlands; Royal Netherlands Institute for Sea Research (NIOZ), Utrecht University, Den Burg, Texel 1790 AB, Netherlands; CASP, West Building, Madingley Rise, Madingley Road, Cambridge, CB3 0UD, United Kingdom; Senckenberg Biodiversity and Climate Research Centre, Senckenberganlage 25, Frankfurt am Main, 60325, Germany; Department of Geology, University of Bucharest, Bălcescu Bd. 1, Bucharest, 010041, Romania; Geology & Geochemistry, VU University, De Boelelaan 1085, Amsterdam, 1081 HV, Netherlands

Recommended Citation:
Grothe A.,Andreetto F.,Reichart G.-J.,et al. Paratethys pacing of the Messinian Salinity Crisis: Low salinity waters contributing to gypsum precipitation?[J]. Earth and Planetary Science Letters,2020-01-01,532
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Grothe A.]'s Articles
[Andreetto F.]'s Articles
[Reichart G.-J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Grothe A.]'s Articles
[Andreetto F.]'s Articles
[Reichart G.-J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Grothe A.]‘s Articles
[Andreetto F.]‘s Articles
[Reichart G.-J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.