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DOI	10.1016/j.earscirev.2020.103172
	Secular change and the onset of plate tectonics on Earth
	Palin R.M.; Santosh M.; Cao W.; Li S.-S.; Hernández-Uribe D.; Parsons A.
发表日期	2020
ISSN	0012-8681
卷号	207
英文摘要	The Earth as a planetary system has experienced significant change since its formation c. 4.54 Gyr ago. Some of these changes have been gradual, such as secular cooling of the mantle, and some have been abrupt, such as the rapid increase in free oxygen in the atmosphere at the Archean–Proterozoic transition. Many of these changes have directly affected tectonic processes on Earth and are manifest by temporal trends within the sedimentary, igneous, and metamorphic rock record. Indeed, the timing of global onset of mobile-lid (subduction-driven) plate tectonics on our planet remains one of the fundamental points of debate within the geosciences today, and constraining the age and cause of this transition has profound implications for understanding our own planet's long-term evolution, and that for other rocky bodies in our solar system. Interpretations based on various sources of evidence have led different authors to propose a very wide range of ages for the onset of subduction-driven tectonics, which span almost all of Earth history from the Hadean to the Neoproterozoic, with this uncertainty stemming from the varying reliability of different proxies. Here, we review evidence for paleo-subduction preserved within the geological record, with a focus on metamorphic rocks and the geodynamic information that can be derived from them. First, we describe the different types of tectonic/geodynamic regimes that may occur on Earth or any other silicate body, and then review different models for the thermal evolution of the Earth and the geodynamic conditions necessary for plate tectonics to stabilize on a rocky planet. The community's current understanding of the petrology and structure of Archean and Proterozoic oceanic and continental crust is then discussed in comparison with modern-day equivalents, including how and why they differ. We then summarize evidence for the operation of subduction through time, including petrological (metamorphic), tectonic, and geochemical/isotopic data, and the results of petrological and geodynamical modeling. The styles of metamorphism in the Archean are then examined and we discuss how the secular distribution of metamorphic rock types can inform the type of geodynamic regime that operated at any point in time. In conclusion, we argue that most independent observations from the geological record and results of lithospheric-scale geodynamic modeling support a global-scale initiation of plate tectonics no later than c. 3 Ga, just preceding the Archean–Proterozoic transition. Evidence for subduction in Early Archean terranes is likely accounted for by localized occurrences of plume-induced subduction initiation, although these did not develop into a stable, globally connected network of plate boundaries until later in Earth history. Finally, we provide a discussion of major unresolved questions related to this review's theme and provide suggested directions for future research. © 2020 The Authors
英文关键词	Archean; Geodynamics; Metamorphism; Plate tectonics; Subduction
语种	英语
scopus关键词	Archean; geodynamics; igneous rock; metamorphic rock; plate motion; plate tectonics; Proterozoic; sedimentary rock; transition zone
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/209610
作者单位	Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom; School of Earth Sciences and Resources, China University of Geosciences Beijing, 29 Xueyuan Road, Beijing, 100083, China; Department of Earth Science, University of Adelaide, Adelaide, SA 5005, Australia; Department of Geology & Environmental Sciences, State University of New York at Fredonia, Fredonia, NY 14063, United States; Department of Geology and Geological Engineering, Colorado School of Mines, Golden, CO 80401, United States
推荐引用方式 GB/T 7714	Palin R.M.,Santosh M.,Cao W.,et al. Secular change and the onset of plate tectonics on Earth[J],2020,207.
APA	Palin R.M.,Santosh M.,Cao W.,Li S.-S.,Hernández-Uribe D.,&Parsons A..(2020).Secular change and the onset of plate tectonics on Earth.EARTH-SCIENCE REVIEWS,207.
MLA	Palin R.M.,et al."Secular change and the onset of plate tectonics on Earth".EARTH-SCIENCE REVIEWS 207(2020).