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DOI	10.1016/j.earscirev.2021.103503
	Phanerozoic paleotemperatures: The earth's changing climate during the last 540 million years
	Scotese C.R.; Song H.; Mills B.J.W.; van der Meer D.G.
发表日期	2021
ISSN	00128252
卷号	215
英文摘要	This study provides a comprehensive and quantitative estimate of how global temperatures have changed during the last 540 million years. It combines paleotemperature measurements determined from oxygen isotopes with broader insights obtained from the changing distribution of lithologic indicators of climate, such as coals, evaporites, calcretes, reefs, and bauxite deposits. The waxing and waning of the Earth's great polar icecaps have been mapped using the past distribution of tillites, dropstones, and glendonites. The global temperature model presented here includes estimates of global average temperate (GAT), changing tropical temperatures (∆T° tropical), deep ocean temperatures, and polar temperatures. Though similar, in many respects, to the temperature history deduced directly from the study of oxygen isotopes, our model does not predict the extreme high temperatures for the Early Paleozoic required by isotopic investigations. The history of global changes in temperature during the Phanerozoic has been summarized in a “paleotemperature timescale” that subdivides the many past climatic events into 8 major climate modes; each climate mode is made up of 3-4 pairs of warming and cooling episodes (chronotemps). A detailed narrative describes how these past temperature events have been affected by geological processes such as the eruption of Large Igneous Provinces (LIPS) (warming) and bolide impacts (cooling). The paleotemperature model presented here allows for a deeper understanding of the interconnected geologic, tectonic, paleoclimatic, paleoceanographic, and evolutionary events that have shaped our planet, and we make explicit predictions about the Earth's past temperature that can be tested and evaluated. By quantitatively describing the pattern of paleotemperature change through time, we may be able to gain important insights into the history of the Earth System and the fundamental causes of climate change on geological timescales. These insights can help us better understand the problems and challenges that we face as a result of Future Global Warming. © 2021
关键词	climate change climate history End Triassic Extinction Future Global Warming Hirnantian Ice Age hothouse ice age icehouse K/T Extinction K/T Impact Winter paleoclimate paleotemperature Permo-Carboniferous Ice Age PETM Phanerozoic Pleistocene Ice Age ∂13C ∂18O
英文关键词	climate modeling; climate variation; extinction; glaciation; global change; large igneous province; oxygen isotope; paleoceanography; paleoclimate; paleotemperature; Phanerozoic; quantitative analysis; Triassic
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204131
作者单位	Department of Earth and Planetary Sciences, Northwestern University, Evanston, IL 60208, United States; State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan, 430074, United States; School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; CNOOC International, 945 Bunker Hill Road, Houston, TX 77024, United States
推荐引用方式 GB/T 7714	Scotese C.R.,Song H.,Mills B.J.W.,et al. Phanerozoic paleotemperatures: The earth's changing climate during the last 540 million years[J],2021,215.
APA	Scotese C.R.,Song H.,Mills B.J.W.,&van der Meer D.G..(2021).Phanerozoic paleotemperatures: The earth's changing climate during the last 540 million years.Earth Science Reviews,215.
MLA	Scotese C.R.,et al."Phanerozoic paleotemperatures: The earth's changing climate during the last 540 million years".Earth Science Reviews 215(2021).