Cambrian-Ordovician magmatic flare-up in NE Gondwana: A silicic large igneous province?
文献类型:期刊论文
作者 | Dan, Wei3,4![]() |
刊名 | GEOLOGICAL SOCIETY OF AMERICA BULLETIN
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出版日期 | 2023-05-01 |
卷号 | 135期号:5-6页码:1618-1632 |
ISSN号 | 0016-7606 |
DOI | 10.1130/B36331.1 |
英文摘要 | The origin of the Cambrian-Ordovician tectono-magmatic events affecting NE Gond-wana and the adjacent peri-Gondwanan terranes (e.g., Himalaya, Lhasa, Southern Qiangtang, Baoshan, Tengchong, Sibumasu, Helmand, and Karakorum) is controversial. Although its volume is poorly constrained, we propose that an extensive belt of granitic rocks that formed in various pulses between ca. 510 Ma and 460 Ma may represent the remains of a potential silicic large igneous province (LIP), which is referred to here as the Pinghe silicic LIP, with an areal extent of -2.5 Mkm(2). The putative Pinghe silicic LIP is composed predominantly of S-type granites with subordinate A-type granites and minor intraplate mafic rocks. The recognition of this belt of granitic rocks aids in the refinement of tectonic reconstructions of Gondwana and of models for the rifting of terranes from its northern margin. The Pinghe silicic LIP broadly coincides with the adjacent 511 Ma Kalkarindji LIP in northern Australia, and the plume or mantle upwelling that triggered the Kalkarindji LIP may have been responsi-ble for driving crustal melting that generated the granitic rocks, in a manner analogous to the Karoo-Chon Aike association. |
WOS研究方向 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000983284900002 |
源URL | [http://ir.gig.ac.cn/handle/344008/74218] ![]() |
专题 | 同位素地球化学国家重点实验室 |
通讯作者 | Dan, Wei |
作者单位 | 1.Curtin Univ, Inst Geosci Res TIGeR, Sch Earth & Planetary Sci, Earth Dynam Res Grp, Perth, WA 6845, Australia 2.St Francis Xavier Univ, Dept Earth Sci, POB 5000, Antigonish, NS B2G 2W5, Canada 3.Chinese Acad Sci, Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 10049, Peoples R China 6.Cornell Univ, Dept Earth & Atmospher Sci, Ithaca, NY 14853 USA |
推荐引用方式 GB/T 7714 | Dan, Wei,Murphy, J. Brendan,Tang, Gong-Jian,et al. Cambrian-Ordovician magmatic flare-up in NE Gondwana: A silicic large igneous province?[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2023,135(5-6):1618-1632. |
APA | Dan, Wei,Murphy, J. Brendan,Tang, Gong-Jian,Zhang, Xiu-Zheng,White, William M.,&Wang, Qiang.(2023).Cambrian-Ordovician magmatic flare-up in NE Gondwana: A silicic large igneous province?.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,135(5-6),1618-1632. |
MLA | Dan, Wei,et al."Cambrian-Ordovician magmatic flare-up in NE Gondwana: A silicic large igneous province?".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 135.5-6(2023):1618-1632. |
入库方式: OAI收割
来源:广州地球化学研究所
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