A global carbon isotope excursion (SPICE) during the Late Cambrian: relation to trilobite extinctions, organic-matter burial and sea level

	A global carbon isotope excursion (SPICE) during the Late Cambrian: relation to trilobite extinctions, organic-matter burial and sea level
	Saltzman, MR ; Ripperdan, RL ; Brasier, MD ; Lohmann, KC ; Robison, RA ; Chang, WT ; Peng, SC (彭善池); Ergaliev, EK ; Runnegar, B
	2000-10-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	162 期号:3-4 页码:211-223
摘要	The Steptoean positive carbon isotope excursion (SPICE) marks a global oceanographic event that confirms intercontinental correlations between different biogeographic realms based on agnostids and other blue-water trilobites. The SPICE excursion is documented from sections in Laurentia, Kazakhstan, China, and Australia where it begins with the mass extinction at the base of the Pterocephaliid Biomere (Steptoean Stage) in Laurentia and at coeval extinction horizons in Gondwana and periGondwana terranes. The peak of SPICE (+ 5 parts per thousand) coincided with a time of maximum regression in Laurentia. SPICE is similar in this regard to excursions that coincide with glacio-eustatic falls, such as in the Late Ordovician. A plausible scenario involves the transformation of ocean circulation between two states, which led to enhanced coastal upwelling and benthic extinctions. The lack of evidence for glaciation indicates that the coeval sea level fall (Sauk II-Sauk III event) resulted from tectonic or hydrologic changes that remain poorly understood at this time. (C) 2000 Elsevier Science B.V. All rights reserved.
关键词	Biomere Carbon-isotopes Mass Extinction Upper Cambrian
语种	英语
关键词[WOS]	Late Ordovician ; Atmospheric Pco(2) ; Stratigraphy ; Glaciation ; Evolution ; Oxygen ; Model ; Anomalies ; Climate
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000089654300001
出版者	ELSEVIER SCIENCE BV
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/805
专题	中国科学院南京地质古生物研究所其他
通讯作者	Saltzman, MR
作者单位	1.Ohio State Univ, Dept Geol Sci, Columbus, OH 43210 USA 2.Univ Puerto Rico, Dept Geol, Mayaguez, PR 00681 USA 3.Univ Oxford, Dept Earth Sci, Oxford OX1 3PR, England 4.Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA 5.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA 6.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 7.Inst Geol Sci, Almaty, Kazakhstan 8.Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90095 USA 9.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA
推荐引用方式 GB/T 7714	Saltzman, MR,Ripperdan, RL,Brasier, MD,et al. A global carbon isotope excursion (SPICE) during the Late Cambrian: relation to trilobite extinctions, organic-matter burial and sea level[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2000,162(3-4):211-223.
APA	Saltzman, MR.,Ripperdan, RL.,Brasier, MD.,Lohmann, KC.,Robison, RA.,...&Runnegar, B.(2000).A global carbon isotope excursion (SPICE) during the Late Cambrian: relation to trilobite extinctions, organic-matter burial and sea level.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,162(3-4),211-223.
MLA	Saltzman, MR,et al."A global carbon isotope excursion (SPICE) during the Late Cambrian: relation to trilobite extinctions, organic-matter burial and sea level".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 162.3-4(2000):211-223.