Early diagenetic greigite as an indicator of paleosalinity changes in the middle Miocene Paratethys Sea of central Europe

doi:10.1002/2017GC006988

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Early diagenetic greigite as an indicator of paleosalinity changes in the middle Miocene Paratethys Sea of central Europe
	Liu, Suzhen 1,2; Krijgsman, Wout 1; Dekkers, Mark J.1; Palcu, Dan 1
刊名	GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
	2017-07-01
卷号	18 期号:7 页码:2634-2645
关键词	Paratethys greigite Miocene salinity eccentricity
ISSN号	1525-2027
DOI	10.1002/2017GC006988
文献子类	Article
英文摘要	The Miocene epicontinental Paratethys Sea of central Eurasia has experienced multiple restriction and reconnection events to the open ocean. Magnetostratigraphy is an important dating tool to better understand the temporal and spatial paleoenvironmental variations associated with these changes. Magnetostratigraphy in the Paratethys domain, however, is complicated by the presence of greigite (Fe3S4). Here we report rock magnetic and X-ray fluorescence data of the Tisa section (Romania) which was previously magnetostratigraphically dated at the middle Miocene (base at 12.8 Ma and top at 12.2 Ma). This section comprises the Badenian Sarmatian Extinction Event (BSEE), which is marked by a major salinity change from marine to brackish environments, related to the opening of the connection between the Central and the Eastern Paratethys basins. In the marine Badenian sediments below the BSEE, the pyritization process is shown to be complete because of abundant sulfate supply. In the brackish Sarmatian deposits, four intervals with early diagenetic greigite are observed, and linked to insufficient sulfate in the water column. These four greigite intervals appear to correspond to maxima in the approximate to 100 kyr eccentricity cycle. We propose that increased fresh water from the Eastern Paratethys basin during eccentricity maxima restricted the sulfate availability in the Tisa area, leading to a reduced HS- production and enhanced greigite preservation. The early diagenetic formation of greigite enables a quasi syn-depositional recording of the paleomagnetic field, which allows reliable paleomagnetic dating in this section. Our results further suggest greigite as a potential indicator for salinity changes during marine/brackish transitions.
WOS关键词	CARPATHIAN FOREDEEP ; MARINE-SEDIMENTS ; BLACK-SEA ; WIDESPREAD OCCURRENCE ; MAGNETIC-PROPERTIES ; MEDITERRANEAN SEA ; MAGNETOSTRATIGRAPHY ; IDENTIFICATION ; ROMANIA ; REMAGNETIZATION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000407477800014
资助机构	Netherlands Geosciences Foundation (ALW) ; Netherlands Geosciences Foundation (ALW) ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; NSFC(41574061) ; NSFC(41574061) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; Netherlands Geosciences Foundation (ALW) ; Netherlands Geosciences Foundation (ALW) ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; NSFC(41574061) ; NSFC(41574061) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; Netherlands Geosciences Foundation (ALW) ; Netherlands Geosciences Foundation (ALW) ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; NSFC(41574061) ; NSFC(41574061) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; Netherlands Geosciences Foundation (ALW) ; Netherlands Geosciences Foundation (ALW) ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; Netherlands Organization for Scientific Research (NWO) through the VICI grant of Wout Krijgsman ; NSFC(41574061) ; NSFC(41574061) ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows ; CPSF-CAS Joint Foundation for Excellent Postdoctoral Fellows
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61828]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Liu, Suzhen
作者单位	1.Univ Utrecht, Dept Earth Sci, Paleomagnet Lab Ft Hoofddijk, Utrecht, Netherlands 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Suzhen,Krijgsman, Wout,Dekkers, Mark J.,et al. Early diagenetic greigite as an indicator of paleosalinity changes in the middle Miocene Paratethys Sea of central Europe[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2017,18(7):2634-2645.
APA	Liu, Suzhen,Krijgsman, Wout,Dekkers, Mark J.,&Palcu, Dan.(2017).Early diagenetic greigite as an indicator of paleosalinity changes in the middle Miocene Paratethys Sea of central Europe.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,18(7),2634-2645.
MLA	Liu, Suzhen,et al."Early diagenetic greigite as an indicator of paleosalinity changes in the middle Miocene Paratethys Sea of central Europe".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 18.7(2017):2634-2645.