Morphology of Shatsky Rise oceanic plateau from high resolution bathymetry
文献类型:期刊论文
作者 | Zhang, JC; Sager, WW; Durkin, WJ; jzhang@scsio.ac.cn |
刊名 | MARINE GEOPHYSICAL RESEARCH
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出版日期 | 2017 |
卷号 | 38期号:1-2页码:169-185 |
关键词 | Ridge-ridge-ridge Triple Junction Large Igneous Province Oceanic Plateau Shatsky Rise Multi-beam Sounding High Resolution Bathymetry |
英文摘要 | Newly collected, high resolution multi-beam sonar data are combined with previous bathymetry data to produce an improved bathymetric map of Shatsky Rise oceanic plateau. Bathymetry data show that two massifs within Shatsky Rise are immense central volcanoes with gentle flank slopes declining from a central summit. Tamu Massif is a slightly elongated, dome-like volcanic edifice; Ori Massif is square shaped and smaller in area. Several down-to-basin normal faults are observed on the western flank of the massifs but they do not parallel the magnetic lineations, indicating that these faults are probably not related to spreading ridge faulting. Moreover, the faults are observed only on one side of the massifs, which is contrary to expectations from a mechanism of differential subsidence around the massif center. Multi-beam data show many small secondary cones with different shapes and sizes that are widely-distributed on Shatsky Rise massifs, which imply small late-stage magma sources scattered across the surface of the volcanoes in the form of lava flows or explosive volcanism. Erosional channels occur on the flanks of Shatsky Rise volcanoes due to mass wasting and display evidence of down-slope sediment movement. These channels are likely formed by sediments spalling off the edges of summit sediment cap. |
资助项目 | MSG |
源URL | [http://ir.scsio.ac.cn/handle/344004/16502] ![]() |
专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
通讯作者 | jzhang@scsio.ac.cn |
推荐引用方式 GB/T 7714 | Zhang, JC,Sager, WW,Durkin, WJ,et al. Morphology of Shatsky Rise oceanic plateau from high resolution bathymetry[J]. MARINE GEOPHYSICAL RESEARCH,2017,38(1-2):169-185. |
APA | Zhang, JC,Sager, WW,Durkin, WJ,&jzhang@scsio.ac.cn.(2017).Morphology of Shatsky Rise oceanic plateau from high resolution bathymetry.MARINE GEOPHYSICAL RESEARCH,38(1-2),169-185. |
MLA | Zhang, JC,et al."Morphology of Shatsky Rise oceanic plateau from high resolution bathymetry".MARINE GEOPHYSICAL RESEARCH 38.1-2(2017):169-185. |
入库方式: OAI收割
来源:南海海洋研究所
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