DOI: 10.1016/j.gloplacha.2015.09.001
论文题名: Large igneous provinces and organic carbon burial: Controls on global temperature and continental weathering during the Early Cretaceous
作者: Bodin S. ; Meissner P. ; Janssen N.M.M. ; Steuber T. ; Mutterlose J.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2015
卷: 133 起始页码: 238
结束页码: 253
语种: 英语
英文关键词: Belemnites
; Late Aptian cold snap
; Oceanic Anoxic Events
; Paleotemperature reconstruction
Scopus关键词: Isotopes
; Organic carbon
; Sea level
; Strontium
; Weathering
; Belemnites
; Carbon isotope excursions
; Large igneous provinces
; Late Aptian cold snap
; Long-term perspective
; Oceanic Anoxic Event
; Paleotemperature reconstruction
; Sea-level fluctuations
; Climate change
; belemnite
; carbon dioxide
; continental crust
; Cretaceous
; episodic event
; global climate
; ice cap
; igneous province
; isotopic analysis
; organic carbon
; paleoclimate
; paleotemperature
; reconstruction
; sea level change
; transient flow
; weathering rate
; France
; Vocontian Trough
; Belemnoidea
英文摘要: There is an abundance of evidence for short intervals of cold climatic conditions during the Early Cretaceous. However, the lack of a high-resolution, long-term Early Cretaceous paleotemperature record hampers a full-scale synthesis of these putative "cold snap" episodes, as well as a more holistic approach to Early Cretaceous climate changes. We present an extended compilation of belemnite-based oxygen, carbon and strontium isotope records covering the Berriasian-middle Albian from the Vocontian Basin (SE France). This dataset clearly demonstrates three intervals of cold climatic conditions during the Early Cretaceous (late Valanginian-earliest Hauterivian, late early Aptian, latest Aptian-earliest Albian). Each of these intervals is associated with rapid and high amplitude sea-level fluctuations, supporting the hypothesis of transient growth of polar ice caps during the Early Cretaceous. As evidenced by positive carbon isotope excursions, each cold episode is associated with enhanced burial of organic matter on a global scale. Moreover, there is a relatively good match between the timing and size of large igneous province eruptions and the amplitude of Early Cretaceous warming episodes. Altogether, these observations confirm the instrumental role of atmospheric CO2 variations in driving Early Cretaceous climate change. From a long-term perspective, the coupling of global paleotemperature and seawater strontium isotopic ratio during the Early Cretaceous is best explained by temperature-controlled changes of continental crust weathering rates. © 2015 Elsevier B.V.. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941652710&doi=10.1016%2fj.gloplacha.2015.09.001&partnerID=40&md5=2a6ad500abdbc0034f7b989e6b835d04
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11489
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Ruhr-Universität Bochum, Institut für Geologie, Mineralogie und Geophysik, Bochum, Germany
Recommended Citation:
Bodin S.,Meissner P.,Janssen N.M.M.,et al. Large igneous provinces and organic carbon burial: Controls on global temperature and continental weathering during the Early Cretaceous[J]. Global and Planetary Change,2015-01-01,133.