Paleogeographic forcing of the strontium isotopic cycle in the Neoproterozoic

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• 作者：Yves Godd&eacute ; ris^a ; ^{yves.godderis@get.omp.eu} ; Guillaume Le Hir^b ; ^{lehir@ipgp.jussieu.fr} ; M&eacute ; lina Macouin^a ; Yannick Donnadieu^c ; ^{yannick.donnadieu@lsce.ipsl.fr} ; Lucie Hubert-Th&eacute ; ou^d ; Guillaume Dera^a ; Markus Aretz^a ; Fr&eacute ; d&eacute ; ric Fluteau^b ; Z.X. Li^e ; ^{z.li@exchange.curtin.edu.au} ; Galen P. Halverson^d ; ^e ; ^{galen.halverson@mcgill.ca}
• 关键词：Neoproterozoic ; Paleogeography ; Strontium isotopes ; Carbon cycle ; Modeling
• 刊名：Gondwana Research
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：42
• 期：Complete
• 页码：151-162
• 全文大小：1101 K
• 卷排序：42

文摘

The onset and drifting of LIPs modulate the low-radiogenic strontium flux released by their weathering to the oceans. After 635 Ma, release of radiogenic Sr by weathering of the Pan-African orogens forces the seawater 87Sr/86Sr to rise. The tectonic evolution of the 825-540 Ma period acts as an efficient atmospheric CO2 pump