SCSIO OpenIR  > 中科院边缘海地质重点实验室
Tectonics of the Indo-Australian plate near the Ninetyeast Ridge constrained from marine gravity and magnetic data
Chen, J; Zhang, JC; jzhang@scsio.ac.cn
2017
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
Volume16Issue:3Pages:403-410
AbstractAlthough the Indo-Australian plate near the Ninetyeast Ridge is important for understanding the formation of new plate boundaries, its tectonic problems are complex and most of them are poorly known. This paper made a detailed tectonic analysis based on the data of bathymetry, gravity and magnetics. Bathymetry and gravity maps show morphological features of many folds, which are related to the intraplate deformation of the Indo-Australian plate due to the collision between the Indian and Asian plates. Gravity anomalies show the structure of fracture zones, which are caused by the seafloor spreading and transform faulting. The characteristics of the folds and fracture zones are consistent with the hypothesis that diffuse plate boundaries and redefined plate components would occur within the Indo-Australian plate. In addition, compiled magnetic data demonstrate magnetic lineations, abandoned spreading centers, southward ridge jumps and plate motions. These features provide useful information for rebuilding the tectonic evolution history of the study area. Magnetic anomalies suggest that an additional plate boundary of transform fault type is developing.
Department[Chen, Jie] State Ocean Adm, South China Sea Inst Planning & Environm Res, Guangzhou 510310, Guangdong, Peoples R China; [Chen, Jie] State Ocean Adm, Key Lab Ecol Environm Coastal Areas, Dalian 116023, Peoples R China; [Chen, Jie] State Ocean Adm, Key Lab Integrated Marine Monitoring & Appl Techn, Shanghai 200137, Peoples R China; [Zhang, Jinchang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Zhang, Jinchang] Minist Land & Resouces, Key Lab Marine Mineral Resources, Guangzhou 510075, Guangdong, Peoples R China
KeywordIndian Ocean Ninetyeast Ridge Indo-australian Plate Plate Tectonics Marine Geophysics
Funding ProjectMSG
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/16489
Collection中科院边缘海地质重点实验室
Corresponding Authorjzhang@scsio.ac.cn
Recommended Citation
GB/T 7714
Chen, J,Zhang, JC,jzhang@scsio.ac.cn. Tectonics of the Indo-Australian plate near the Ninetyeast Ridge constrained from marine gravity and magnetic data[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2017,16(3):403-410.
APA Chen, J,Zhang, JC,&jzhang@scsio.ac.cn.(2017).Tectonics of the Indo-Australian plate near the Ninetyeast Ridge constrained from marine gravity and magnetic data.JOURNAL OF OCEAN UNIVERSITY OF CHINA,16(3),403-410.
MLA Chen, J,et al."Tectonics of the Indo-Australian plate near the Ninetyeast Ridge constrained from marine gravity and magnetic data".JOURNAL OF OCEAN UNIVERSITY OF CHINA 16.3(2017):403-410.
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