Tectonic and geodynamic pattern of marginal seas on the West Pacific inferred from multi-satellite altewetry geoid

IOCAS-IR > 海洋地质与环境重点实验室

	Tectonic and geodynamic pattern of marginal seas on the West Pacific inferred from multi-satellite altewetry geoid
	Gao, JY ; Jin, XL
	2003-09-01
发表期刊	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN	0001-5733
卷号	46 期号:5 页码:600-+
文章类型	Article
摘要	With the rapid development of satellite observations, we can use the altimetry geoid to study submarine tectonics and geodynamics. On the basis of the 4' x 4' geoid undulation calculated from altimeter data of Geosat, ERS-1/2 and Topex/Poseidon on the West Pacific, located between 0degreesN similar to 45degreesN, 100degreesC similar to 150degreesE, Bouguer, Glenni and isostatic geoid undulation are obtained from correction of gravitational potential of the global topography and isostacy. Moho discontinuity depth is inversed by the Glenni geoid undulation, and the stress field from small-scale mantle convection is reasonably calculated from the isostatic geoid undulation. The results show that within the Philippine Sea and the South China Sea, short-wavelength lineations of the geoid undulation are parallel or cross to magnetic lineations and rifting ridges. The Moho depth of marginal sea basins becomes shallow southward, and its values are similar to that of the Philippine Sea. These facts show that strength of tectonic activities are almost the same on the both sides of the Ryukyu-Taiwan-Philippine are. Various kinds of tectonic features with different driving mechanisms of small-middle and large-scale of mantle convection, however, display a special pattern of tectonics and geodynamics of the continental marginal seas distinguished from oceans and continents.; With the rapid development of satellite observations, we can use the altimetry geoid to study submarine tectonics and geodynamics. On the basis of the 4' x 4' geoid undulation calculated from altimeter data of Geosat, ERS-1/2 and Topex/Poseidon on the West Pacific, located between 0degreesN similar to 45degreesN, 100degreesC similar to 150degreesE, Bouguer, Glenni and isostatic geoid undulation are obtained from correction of gravitational potential of the global topography and isostacy. Moho discontinuity depth is inversed by the Glenni geoid undulation, and the stress field from small-scale mantle convection is reasonably calculated from the isostatic geoid undulation. The results show that within the Philippine Sea and the South China Sea, short-wavelength lineations of the geoid undulation are parallel or cross to magnetic lineations and rifting ridges. The Moho depth of marginal sea basins becomes shallow southward, and its values are similar to that of the Philippine Sea. These facts show that strength of tectonic activities are almost the same on the both sides of the Ryukyu-Taiwan-Philippine are. Various kinds of tectonic features with different driving mechanisms of small-middle and large-scale of mantle convection, however, display a special pattern of tectonics and geodynamics of the continental marginal seas distinguished from oceans and continents.
关键词	Altimetric Geoid Tectonic/geodynamic Pattern Marginal Sea West Pacific
学科领域	Geochemistry & Geophysics
收录类别	SCI
语种	英语
WOS记录号	WOS:000185746500005
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3778
专题	海洋地质与环境重点实验室
作者单位	1.State Ocean Adm, Inst Oceanog 2, Hangzhou 310012, Peoples R China 2.State Ocean Adm, Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Gao, JY,Jin, XL. Tectonic and geodynamic pattern of marginal seas on the West Pacific inferred from multi-satellite altewetry geoid[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2003,46(5):600-+.
APA	Gao, JY,&Jin, XL.(2003).Tectonic and geodynamic pattern of marginal seas on the West Pacific inferred from multi-satellite altewetry geoid.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,46(5),600-+.
MLA	Gao, JY,et al."Tectonic and geodynamic pattern of marginal seas on the West Pacific inferred from multi-satellite altewetry geoid".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 46.5(2003):600-+.

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