Advances in research of Asian geology-A summary of 1:5M International;Geological Map of Asia project

doi:10.1016/j.jseaes.2013.02.006

	Advances in research of Asian geology-A summary of 1:5M International;Geological Map of Asia project
	Ren, Jishun 2; Niu, Baogui ; Wang, Jun ; Jin, Xiaochi ; Zhao, Lei ; Liu, Renyan
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2013
卷号	72;SI SI 页码:3-11
关键词	IGMA5000 Volcanics Granite Composite continent Pangea reconstruction Indosinian foldbelt
ISSN号	1367-9120;EI 1878-5786
DOI	10.1016/j.jseaes.2013.02.006
英文摘要	The International Geological Map of Asia at a 1:5,000,000 scale (IGMA5000) is the first digital Asian geological map under the standard of the Commission for the Geological Map of the World (CGMW). Major advances that have been achieved in compiling the map are manifested in the following understandings.;(1) Large amounts of Mesozoic volcanic rocks occurring in the eastern Asian coastal area are mainly Cretaceous instead of Upper Jurassic-Lower Cretaceous. Most of the Carboniferous-Permian volcanic rocks in Central Asia seem not to be arc volcanics, but the product of an extensional stage. The basal boundary of the Meso-Neoproterozoic Jixian section in China is not dated at 1.8 Ga as defined previously, but less than 1.68 Ga.;(2) The most significant Neoarchean tectono-thermal events in the Sino-Korean craton and the Indian craton took place at 2.5 Ga rather than at 2.7 Ga. The basement of the Yangtze craton was finally formed at 0.75-0.8 Ga, which is 0.2-0.3 Ga later than the Greenville orogenic cycle. Geologically, South China is identified to be an Early Paleozoic Caledonian foldbelt. The Qinling belt, where no oceanic basin was developed in Triassic times, is not an Indosinian collisional orogen, but a continental crust subduction one. When Pangea was formed, Indo-Australian Gondwana had been joined to Paleo-Asia and between them there was no oceanic basin, i.e. no Paleo-Tethys which continued from Paleozoic to Mesozoic. A huge Indosinian orogenic belt existed on the southern margin of Paleo-Asia to the north of the Zagros-Himalayas.;(3) Asia is a composite continent consisting of three major cratons-the Siberian, Indian and Arabian and three huge orogenic belts with a number of minor cratons and numerous microcontinents included. The main body of the Asian continent took its shape during the Mesozoic. The orogenic belts belong respectively to three global tectonic domains: the Paleo-Asian, Tethyan and Pacific. The small cratons, such as Sino-Korea, Yangtze, Tarim, and Sibumasu are thought to be affiliated to the tectonic transform zone between Gondwana and Siberia. They had been situated on the northern margin of Gondwana before the disappearance of the Paleo-Asian Ocean, and were lying on the southern margin of Paleo-Asia after the closing of the Paleo-Asian Ocean and then the opening of the Tethys. The fact that ophiolites in Asia appear to get progressively younger in age from north to south throws light on the Phanerozoic evolutionary process of the dispersion of Gondwana and the accretion of Asia accompanied by a southward migration of its orogenic belts. (c) 2013 Elsevier Ltd. All rights reserved.
学科主题	地质普查勘探方法
WOS关键词	CARBONIFEROUS VOLCANIC-ROCKS ; TECTONIC EVOLUTION ; NW CHINA ; CRUSTAL ; STRUCTURE ; WESTERN TIANSHAN ; MAGMATIC ROCKS ; NE CHINA ; MARGIN ; BELT ; IRAN
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000321404900002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40097]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China. 2.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Ren, Jishun,Niu, Baogui,Wang, Jun,et al. Advances in research of Asian geology-A summary of 1:5M International;Geological Map of Asia project[J]. JOURNAL OF ASIAN EARTH SCIENCES,2013,72;SI SI:3-11.
APA	Ren, Jishun,Niu, Baogui,Wang, Jun,Jin, Xiaochi,Zhao, Lei,&Liu, Renyan.(2013).Advances in research of Asian geology-A summary of 1:5M International;Geological Map of Asia project.JOURNAL OF ASIAN EARTH SCIENCES,72;SI SI,3-11.
MLA	Ren, Jishun,et al."Advances in research of Asian geology-A summary of 1:5M International;Geological Map of Asia project".JOURNAL OF ASIAN EARTH SCIENCES 72;SI SI(2013):3-11.