The Early Cretaceous Barents Sea Sill Complex: Distribution, 40Ar/39Ar geochronology, and implications for carbon gas formation
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- 作者：Sté ; phane Polteaua ; stephane@vbpr.no" class="auth_mail" title="E-mail the corresponding author ; Bart W.H. Hendriksb ; 1 ; Sverre Plankea ; c ; Morgan Ganerø ; db ; Fernando Corfuc ; d ; Jan Inge Faleidec ; d ; Ivar Midtkandald ; Henrik S. Svensenc ; Reidun Myklebuste
- 关键词：HALIP ; Large igneous provinces ; Cretaceous paleoclimate ; Barents Sea ; 40Ar/39 Ar chronology ; Anoxic event
- 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
- 出版年：2016
- 出版时间：1 January 2016
- 年：2016
- 卷：441
- 期：part_P1
- 页码：83-95
- 全文大小：5096 K
文摘
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We mapped a 200,000 km3 sill complex in the Barents Sea (BSSC) covering 900,000 km2.
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Up to 20,000 Gt of carbon were potentially mobilized from the BSSC contact aureole.
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Ar/Ar dating indicates a 122–125 Ma age for the BSSC and a 80–90 Ma alteration event.
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Rapid release of aureole greenhouse gas may have started the Oceanic Anoxic Event 1a.