Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL082119 |
Defining the Limits of Greater India | |
Meng, Jun1,2; Gilder, Stuart A.3; Wang, Chengshan1; Coe, Robert S.4; Tan, Xiaodong5; Zhao, Xixi6; He, Kuang3,7 | |
2019-04-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:8页码:4182-4191 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany; USA |
英文摘要 | Greater India comprises a part of the Indian plate that subducted under Asia to help form the Tibetan Plateau. Defining the size of the Greater India is thus a key constraint to model the India-Asia collision, growth of the plateau, and the tectonic evolution of the Neo-Tethyan realm. We report Early Cretaceous paleomagnetic data from the central and eastern Tethyan Himalaya that yield paleolatitudes consistent with previous Early Cretaceous paleogeographic reconstructions. These data suggest Greater India extended at least 2,675 +/- 720 and 1,950 +/- 970 km farther north from the present northern margin of India at 83.6 degrees E and 92.4 degrees E, respectively. An area of lithosphere >= 4.7 x 10(6) km(2) was consumed through subduction, thereby placing a strict limit on the minimum amount of Indian lithosphere consumed since the breakup of Gondwanaland. Plain Language summary Greater India is part of the Indian plate, subsequently subducted under Asia, that helped create the Tibetan Plateau. The amount of Greater Indian crust therefore plays a critical role to address key problems in continental geodynamics. To what extent can continental crust be subducted? How much crust was derived from horizontal shortening of existing crust? How much of Tibet was created by subducted buoyant, continental crust? We provide paleomagnetic evidence that defines the minimum size of Greater India. Our data show that a lithospheric area of >= 4.7 x 10(6) km(2) was subducted, which supports the notion that the growth of Tibetan Plateau in the Cenozoic occurred by adding buoyant material to its base. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467949200014 |
WOS关键词 | HIMALAYAN CARBONATE ROCKS ; WAISTED HYSTERESIS LOOPS ; GAMBA AREA IMPLICATIONS ; TETHYAN HIMALAYA ; GEOMAGNETIC-FIELD ; SOUTHERN TIBET ; POLAR WANDER ; LOWER PLATE ; REMAGNETIZATION ; COLLISION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182501 |
专题 | 气候变化 |
作者单位 | 1.China Univ Geosci Beijing, Sch Earth Sci & Resources, State Key Lab Biogeol & Environm Geol, Beijing, Peoples R China; 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing, Jiangsu, Peoples R China; 3.Ludwig Maximilians Univ Munchen, Dept Earth & Environm Sci, Munich, Germany; 4.Univ Calif Santa Cruz, Earth & Planetary Sci Dept, Santa Cruz, CA 95064 USA; 5.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China; 6.Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China; 7.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Paleomagnetism & Geochronol Lab, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Meng, Jun,Gilder, Stuart A.,Wang, Chengshan,et al. Defining the Limits of Greater India[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(8):4182-4191. |
APA | Meng, Jun.,Gilder, Stuart A..,Wang, Chengshan.,Coe, Robert S..,Tan, Xiaodong.,...&He, Kuang.(2019).Defining the Limits of Greater India.GEOPHYSICAL RESEARCH LETTERS,46(8),4182-4191. |
MLA | Meng, Jun,et al."Defining the Limits of Greater India".GEOPHYSICAL RESEARCH LETTERS 46.8(2019):4182-4191. |
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