Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/NGEO3032 |
Magmatic pulse driven by sea-level changes associated with the Messinian salinity crisis | |
Sternai, Pietro1; Caricchi, Luca1; Garcia-Castellanos, Daniel2; Jolivet, Laurent3,4; Sheldrake, Tom E.1; Castelltort, Sebastien1 | |
2017-10-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2017 |
卷号 | 10期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Spain; France |
英文摘要 | Between 5 and 6 million years ago, during the so-called Messinian salinity crisis, the Mediterranean basin became a giant salt repository. The possibility of abrupt and kilometre-scale sea-level changes during this extreme event is debated. Messinian evaporites could signify either deep-or shallow-marine deposits, and ubiquitous erosional surfaces could indicate either subaerial or submarine features. Significant and fast reductions in sea level unload the lithosphere, which can increase the production and eruption of magma. Here we calculate variations in surface load associated with the Messinian salinity crisis and compile the available time constraints for pan-Mediterranean magmatism. We show that scenarios involving a kilometre-scale drawdown of sea level imply a phase of net overall lithospheric unloading at a time that appears synchronous with a magmatic pulse from the pan-Mediterranean igneous provinces. We verify the viability of a mechanistic link between unloading and magmatism using numerical modelling of decompression partial mantle melting and dyke formation in response to surface load variations. We conclude that the Mediterranean magmatic record provides an independent validation of the controversial kilometre-scale evaporative drawdown and sheds new light on the sensitivity of magmatic systems to the surface forcing. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412102200017 |
WOS关键词 | MANTLE FLOW ; EXTENSION ; ARC ; SUBDUCTION ; LITHOSPHERE ; CONSTRAINTS ; EVOLUTION ; MIGRATION ; VOLCANISM ; PRESSURE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34814 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Geneva, Dept Earth Sci, CH-1205 Geneva, Switzerland; 2.ICTJA CSIC, Inst Ciencias Tierra Jaume Almera, Barcelona 08028, Spain; 3.Univ Orleans, Intitut Sci Terre Orleans, F-45100 Orleans, France; 4.Univ Pierre & Marie Curie UPMC Paris VI, F-75005 Paris, France |
推荐引用方式 GB/T 7714 | Sternai, Pietro,Caricchi, Luca,Garcia-Castellanos, Daniel,et al. Magmatic pulse driven by sea-level changes associated with the Messinian salinity crisis[J]. NATURE GEOSCIENCE,2017,10(10). |
APA | Sternai, Pietro,Caricchi, Luca,Garcia-Castellanos, Daniel,Jolivet, Laurent,Sheldrake, Tom E.,&Castelltort, Sebastien.(2017).Magmatic pulse driven by sea-level changes associated with the Messinian salinity crisis.NATURE GEOSCIENCE,10(10). |
MLA | Sternai, Pietro,et al."Magmatic pulse driven by sea-level changes associated with the Messinian salinity crisis".NATURE GEOSCIENCE 10.10(2017). |
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