The 132 Ma Comei-Bunbury large igneous province: Remnants identified in present-day southeastern Tibet and southwestern Australia | |
Zhu, Di-Cheng1; Chung, Sun-Lin2; Mo, Xuan-Xue1; Zhao, Zhi-Dan1; Niu, Yaoling3; Song, Biao4; Yang, Yue-Heng5 | |
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/132A11/71332] |
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. |
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