气候变化领域集成服务门户(CCPortal): Chemostratigraphic Evidence of Deccan Volcanism from the Marine Osmium Isotope Record

CCPortal

DOI	10.1126/science.1089209
	Chemostratigraphic Evidence of Deccan Volcanism from the Marine Osmium Isotope Record
	Ravizza G.; Peucker-Ehrenbrink B.
发表日期	2003
ISSN	0036-8075
起始页码	1392
结束页码	1395
卷号	302 期号:5649
英文摘要	Continental flood basalt (CFB) volcanism is hypothesized to have played a causative rote in global climate change and mass extinctions. Uncertainties associated with radiometric dating preclude a clear chronological assessment of the environmental consequences of CFB volcanism. Our results document a 25% decline in the marine 187Os/188Os record that predates the Cretaceous-Tertiary boundary (KTB) and coincides with late Maastrichtian warming. We argue that this decline provides a chemostratigraphic marker of Deccan volcanism and thus constitutes compelling evidence that the main environmental consequence of Deccan volcanism was a transient global warming event of 3° to 5°C that is fully resolved from the KTB mass extinction.
英文关键词	Climatology; Environmental impact; Global warming; Radiometry; Stratigraphy; Volcanoes; Chemostratigraphy; Mass extinction; Basalt; isotope; osmium; chemostratigraphy; flood basalt; global warming; Maastrichtian; mass extinction; osmium isotope; paleoclimate; volcanism; article; chemostatigraphy; cretaceous; documentation; environmental factor; environmental temperature; greenhouse effect; priority journal; recording; species extinction; stratigraphy; tertiary; volcano; warming; Animals; Climate; Geologic Sediments; Greenhouse Effect; Isotopes; Osmium; Population Density; Seawater; Time; Volcanic Eruption; Staphylococcus phage 187
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245189
作者单位	Department of Geology and Geophysics, University of Hawaii, Honolulu, HI 96822-2225, United States; Dept. of Mar. Chem. and Geochemistry, Woods Hole Oceanogr. Inst. (WHOI), Woods Hole, MA 02543, United States
推荐引用方式 GB/T 7714	Ravizza G.,Peucker-Ehrenbrink B.. Chemostratigraphic Evidence of Deccan Volcanism from the Marine Osmium Isotope Record[J],2003,302(5649).
APA	Ravizza G.,&Peucker-Ehrenbrink B..(2003).Chemostratigraphic Evidence of Deccan Volcanism from the Marine Osmium Isotope Record.Science,302(5649).
MLA	Ravizza G.,et al."Chemostratigraphic Evidence of Deccan Volcanism from the Marine Osmium Isotope Record".Science 302.5649(2003).