PLATE TECTONICS BEFORE 2.0 Ga: EVIDENCE FROM PALEOMAGNETISM OF CRATONS WITHIN SUPERCONTINENT NUNA

doi:10.2475/04.2014.03

	PLATE TECTONICS BEFORE 2.0 Ga: EVIDENCE FROM PALEOMAGNETISM OF CRATONS WITHIN SUPERCONTINENT NUNA
	Mitchell, Ross N.1,2; Bleeker, Wouter 3; Van Breemen, Otto 3; Lecheminant, Tony N.3; Peng, Peng 4; Nilsson, Mimmi K. M.5; Evans, David A. D.2
刊名	AMERICAN JOURNAL OF SCIENCE
	2014-04-01
卷号	314 期号:4 页码:878-894
关键词	Slave craton Superior craton Laurentia U-Pb geochronology paleomagnetism plate tectonics
ISSN号	0002-9599
DOI	10.2475/04.2014.03
文献子类	Article
英文摘要	Laurentia, the core of Paleo- to Mesoproterozoic supercontinent Nuna, has remained largely intact since assembly 2.0 to 1.8 billion years ago [Ga]. For earlier times, previous paleomagnetic data on poorly dated Paleoproterozoic mafic intrusions yielded ambiguous estimates of the amount of separation between key cratons within Nuna such as the Slave and Superior. Recent developments in paleomagnetism and U-Pb baddeleyite geochronology, including new results reported herein, yield sufficiently precise data to generate partial apparent polar wander paths for both the Slave and Superior craton from 2.2 to 2.0 Ga. Our new apparent polar wander comparison confirms earlier speculations that processes similar to plate tectonics, with relative motion between the Slave and Superior cratons, were operative leading up to the final assembly of supercontinent Nuna.
WOS关键词	U-PB GEOCHRONOLOGY ; CANADIAN SHIELD ; SLAVE PROVINCE ; WOPMAY OROGEN ; YELLOWKNIFE DOMAIN ; GEOMAGNETIC-FIELD ; SUPERIOR PROVINCE ; SINGLE-DOMAIN ; DIABASE DYKES ; LAURENTIA
WOS研究方向	Geology
语种	英语
出版者	AMER JOURNAL SCIENCE
WOS记录号	WOS:000345105100003
资助机构	Geological Survey of Canada ; Geological Survey of Canada ; NSF ; NSF ; Geological Survey of Canada ; Geological Survey of Canada ; NSF ; NSF ; Geological Survey of Canada ; Geological Survey of Canada ; NSF ; NSF ; Geological Survey of Canada ; Geological Survey of Canada ; NSF ; NSF
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/85096]
专题	中国科学院地质与地球物理研究所
通讯作者	Mitchell, Ross N.
作者单位	1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA 2.Yale Univ, Dept Geol & Geophys, New Haven, CT 06511 USA 3.Geol Survey Canada, Ottawa, ON K1A 0E8, Canada 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.Lund Univ, Dept Earth & Ecosyst Sci, SE-22362 Lund, Sweden
推荐引用方式 GB/T 7714	Mitchell, Ross N.,Bleeker, Wouter,Van Breemen, Otto,et al. PLATE TECTONICS BEFORE 2.0 Ga: EVIDENCE FROM PALEOMAGNETISM OF CRATONS WITHIN SUPERCONTINENT NUNA[J]. AMERICAN JOURNAL OF SCIENCE,2014,314(4):878-894.
APA	Mitchell, Ross N..,Bleeker, Wouter.,Van Breemen, Otto.,Lecheminant, Tony N..,Peng, Peng.,...&Evans, David A. D..(2014).PLATE TECTONICS BEFORE 2.0 Ga: EVIDENCE FROM PALEOMAGNETISM OF CRATONS WITHIN SUPERCONTINENT NUNA.AMERICAN JOURNAL OF SCIENCE,314(4),878-894.
MLA	Mitchell, Ross N.,et al."PLATE TECTONICS BEFORE 2.0 Ga: EVIDENCE FROM PALEOMAGNETISM OF CRATONS WITHIN SUPERCONTINENT NUNA".AMERICAN JOURNAL OF SCIENCE 314.4(2014):878-894.