The effective elastic thickness of the Caroline plate and its adjacent areas

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	The effective elastic thickness of the Caroline plate and its adjacent areas
	Yang An 1,2; Fu Yong-Tao 1,2; Li An-Chun 1,2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2016-09-01
卷号	59 期号:9 页码:3280-3290
关键词	Effective elastic thickness Flexure Caroline plate Lithosphere Moving window admittance technique
英文摘要	The purpose of this work is to study the effective elastic thickness (T-e) of the Caroline plate and its adjacent areas by using free-air gravity anomaly and bathymetric data, in combination with a moving window admittance technique (MWAT). We use the multitaper spectral estimation method to calculate the power spectral density. Correction is obtained through synthetic tests with actual bathymetric data. Results show that the recovered T-e is about 20% lower than the input T-e. The Caroline plate and adjacent areas have a T-e range of 1 similar to 34 km. The study area includes a wide range of features such as seamounts, plateaux, subduction zones and spreading ridges. The examination of the lithospheric strength for these structures provides important information for the tectonic setting and evolution of the Western Pacific lithosphere. T-e is related to the age of the lithosphere at the time of loading, heat flow and other proxy features. Plots of T-e versus ages of the oceanic crust show that T-e is above the depth of 450 degrees C isotherm based on a cooling plate model. For the Magellan seamounts and Marcus-Wake Guyots (MWG) areas, plots of T-e versus the ages of the lithosphere at the time of loading suggest that T-e is at around the depth of 200 degrees C isotherm based on a cooling plate model. The low isotherm could resulted from the effect of the South Pacific supper plume. Our results also show a negative correlation between heat flow and T-e in the study area.
收录类别	SCI
语种	英语
WOS记录号	WOS:000382903300013
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/135844]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Yang An,Fu Yong-Tao,Li An-Chun. The effective elastic thickness of the Caroline plate and its adjacent areas[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2016,59(9):3280-3290.
APA	Yang An,Fu Yong-Tao,&Li An-Chun.(2016).The effective elastic thickness of the Caroline plate and its adjacent areas.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,59(9),3280-3290.
MLA	Yang An,et al."The effective elastic thickness of the Caroline plate and its adjacent areas".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 59.9(2016):3280-3290.