气候变化领域集成服务门户(CCPortal): The demise of a ‘salt giant’ driven by uplift and thermal dissolution

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DOI	10.1016/j.epsl.2019.115933
	The demise of a ‘salt giant’ driven by uplift and thermal dissolution
	Kirkham C.; Bertoni C.; Cartwright J.; Lensky N.G.; Sirota I.; Rodriguez K.; Hodgson N.
发表日期	2020
ISSN	0012821X
卷号	531
英文摘要	The development of giant salt basins and eventual cessation of rapid salt deposition is founded on a delicate balance of salinity and heat fluxes within the water body governed by tectonic, climatic and eustatic change. The onset of salt deposition in such basins is widely accepted to be initiated by basin restriction. However, the processes that lead to the termination of salt deposition are comparatively unclear. Here we use an array of 2D and 3D seismic surveys to reveal that the truncation surface at the top of a thick salt sequence in the Eastern Mediterranean is far more extensive than previously thought. We show that uplift of the salt driven by deformation and thermal dissolution initiated the demise of the ‘salt giant’, even prior to the final dilution and emplacement of brackish Lago Mare and fluvial deposits. Progressive uplift of the salt through the thermocline and into the under-saturated epilimnion led to dissolution. We argue that dissolved salt was recycled and re-precipitation from the hypolimnion in the deepest sections of the basin contemporaneous with dissolution of halite from the shallower epilimnion. These findings explain how rapid basinwide salt deposition was brought to an end in the Eastern Mediterranean and present a novel process for sculpting the final architecture of a ‘salt giant’. © 2019 Elsevier B.V.
关键词	dissolution Eastern Mediterranean Messinian Salinity Crisis salt basins salt recycling salt tectonics
英文关键词	Deposition; Dissolution; Recycling; Sodium chloride; 3-D seismic survey; Eastern Mediterranean; Fluvial deposits; Messinian salinity crisis; Re-precipitation; Salt deposition; Salt recycling; Thermal dissolution; Salt tectonics
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202699
作者单位	Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3 AN, United Kingdom; Geological Survey of Israel, 32 Yeshayahu Leibowitz Street, Jerusalem, 9692100, Israel; Institute of Earth Sciences, Hebrew University of Jerusalem, Israel; TGS, Dukes Court, Duke Street, Surrey, Woking, GU21 5BH, United Kingdom
推荐引用方式 GB/T 7714	Kirkham C.,Bertoni C.,Cartwright J.,等. The demise of a ‘salt giant’ driven by uplift and thermal dissolution[J],2020,531.
APA	Kirkham C..,Bertoni C..,Cartwright J..,Lensky N.G..,Sirota I..,...&Hodgson N..(2020).The demise of a ‘salt giant’ driven by uplift and thermal dissolution.Earth and Planetary Science Letters,531.
MLA	Kirkham C.,et al."The demise of a ‘salt giant’ driven by uplift and thermal dissolution".Earth and Planetary Science Letters 531(2020).