The 132 Ma Comei-Bunbury large igneous province: Remnants identified in present-day southeastern Tibet and southwestern Australia

doi:10.1130/G30001A.1

	The 132 Ma Comei-Bunbury large igneous province: Remnants identified in present-day southeastern Tibet and southwestern Australia
	Zhu, Di-Cheng 1; Chung, Sun-Lin 2; Mo, Xuan-Xue 1; Zhao, Zhi-Dan 1; Niu, Yaoling 3; Song, Biao 4; Yang, Yue-Heng 5
刊名	GEOLOGY
	2009-07-01
卷号	37 期号:7 页码:583-586
ISSN号	0091-7613
DOI	10.1130/G30001A.1
文献子类	Article
英文摘要	We report 11 new U-Pb zircon ages obtained by sensitive high-resolution ion microprobe (SHRIMP) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) for a large province of Early Cretaceous Comei igneous rocks consisting of basaltic lavas, mafic sills and dikes, and gabbroic intrusions together with subordinate layered ultramafic intrusions and silicic volcanic rocks exposed in the Tethyan Himalaya, southeastern Tibet. Available zircon U-Pb ages obtained from various rocks in this province, which has an areal extent of similar to 40,000 km(2) (similar to 270 km x 150 km), indicate that the magmatism occurred ca. 132 Ma ago, coeval with the Bunbury Basalt in southwestern Australia. Such a striking similarity in emplacement age, in combination with the tectonic reconstruction of eastern Gondwana ca. 132 Ma ago, allows us to propose that the extensive Comei igneous rocks in southeastern Tibet and the Bunbury Basalts in southwestern Australia may represent the erosional and/or deformational remnants of a large igneous province, which we call the Comei-Bunbury LIP. We argue that this newly identified LIP was likely caused by the Kerguelen mantle plume, which started in the Early Cretaceous and may have played a role in the breakup of eastern Gondwana and the development of the 132 Ma old Weissert oceanic anoxic event.
WOS关键词	KERGUELEN PLATEAU ; TETHYAN HIMALAYA ; SANGXIU FORMATION ; CENTRAL SEGMENT ; SOUTHERN TIBET ; FLOOD BASALTS ; PLUME ; PETROGENESIS ; LITHOSPHERE ; ZIRCON
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC AMER, INC
WOS记录号	WOS:000267390100002
资助机构	National Natural Science Foundation of China(40503005) ; National Natural Science Foundation of China(40503005) ; National Key Project for Basic Research of China(2006CB701402 ; National Key Project for Basic Research of China(2006CB701402 ; 2009CB421002 ; 2009CB421002 ; 2002CB412603) ; 2002CB412603) ; National Natural Science Foundation of China(40503005) ; National Natural Science Foundation of China(40503005) ; National Key Project for Basic Research of China(2006CB701402 ; National Key Project for Basic Research of China(2006CB701402 ; 2009CB421002 ; 2009CB421002 ; 2002CB412603) ; 2002CB412603) ; National Natural Science Foundation of China(40503005) ; National Natural Science Foundation of China(40503005) ; National Key Project for Basic Research of China(2006CB701402 ; National Key Project for Basic Research of China(2006CB701402 ; 2009CB421002 ; 2009CB421002 ; 2002CB412603) ; 2002CB412603) ; National Natural Science Foundation of China(40503005) ; National Natural Science Foundation of China(40503005) ; National Key Project for Basic Research of China(2006CB701402 ; National Key Project for Basic Research of China(2006CB701402 ; 2009CB421002 ; 2009CB421002 ; 2002CB412603) ; 2002CB412603)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71330]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhu, Di-Cheng
作者单位	1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 2.Natl Taiwan Univ, Dept Geosci, Taipei 106, Taiwan 3.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England 4.Chinese Acad Geol Sci, Inst Geol, Beijing SHRIMP Ctr 2, Beijing 100037, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Di-Cheng,Chung, Sun-Lin,Mo, Xuan-Xue,et al. The 132 Ma Comei-Bunbury large igneous province: Remnants identified in present-day southeastern Tibet and southwestern Australia[J]. GEOLOGY,2009,37(7):583-586.
APA	Zhu, Di-Cheng.,Chung, Sun-Lin.,Mo, Xuan-Xue.,Zhao, Zhi-Dan.,Niu, Yaoling.,...&Yang, Yue-Heng.(2009).The 132 Ma Comei-Bunbury large igneous province: Remnants identified in present-day southeastern Tibet and southwestern Australia.GEOLOGY,37(7),583-586.
MLA	Zhu, Di-Cheng,et al."The 132 Ma Comei-Bunbury large igneous province: Remnants identified in present-day southeastern Tibet and southwestern Australia".GEOLOGY 37.7(2009):583-586.