Along-strike island-arc crustal growth rate estimation: case study of the Izu-Bonin-Mariana subduction system

doi:10.1093/gji/ggac423

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海地球物理与资源研究室

	Along-strike island-arc crustal growth rate estimation: case study of the Izu-Bonin-Mariana subduction system
	Bai, Yongliang 2; Mu, Xuan 2; Zhang, Wenzhao 2; Li, Sanzhong 1,4; Zhang, Diya 2; Wu, Shiguo 3
刊名	Geophysical Journal International
	2023-03-01
卷号	232 期号:3 页码:1886-1897
ISSN号	0956540X
DOI	10.1093/gji/ggac423
文献子类	期刊论文
英文摘要	The island-arc crustal growth rate (IACGR) is the island-arc magma production volume per 1 km width along the arc strike within one million years, and its variations are highly related to slab dehydration and mantle wedge melting. A novel method that includes Earth density modelling, gravity forward and inversion, and arc crustal growth thickness integration is designed to estimate the IACGR. This method can not only estimate the IACGR along the entire arc length but also assess the crustal growth of both remnant and active arcs. Therefore, the estimation result has high coverage and low uncertainty. Here, the Izu-Bonin-Mariana (IBM) subduction zone is taken as a case study region. The estimated time-averaged IACGR along the IBM arc changes between 16 and 59 km3 km-1 Myr-1, with a mean value of 40 km3 km-1 Myr-1, and this result matches the findings of previous studies well. The uncertainties due to crustal thickness inversion are relatively larger than those from flow line reconstruction. The rate results of the Mariana part have lower uncertainties than those of the Izu-Bonin parts since the arc boundaries can be delineated more accurately. The IACGR of the region where a plateau approaches the trench tends to be overestimated because the collision of the plateau with the island arc thickens the island arc crust and bias the uniform pre-existing crustal thickness assumption. © 2022 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society.
语种	英语
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.idsse.ac.cn/handle/183446/10146]
专题	深海科学研究部_深海地球物理与资源研究室
作者单位	1.Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, College of Marine Geosciences, Ocean University of China, Qingdao; 266100, China; 2.College of Oceanography and Space Informatics, China University of Petroleum, Qingdao; 266580, China; 3.Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya; 572000, China 4.Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao; 266237, China;
推荐引用方式 GB/T 7714	Bai, Yongliang,Mu, Xuan,Zhang, Wenzhao,et al. Along-strike island-arc crustal growth rate estimation: case study of the Izu-Bonin-Mariana subduction system[J]. Geophysical Journal International,2023,232(3):1886-1897.
APA	Bai, Yongliang,Mu, Xuan,Zhang, Wenzhao,Li, Sanzhong,Zhang, Diya,&Wu, Shiguo.(2023).Along-strike island-arc crustal growth rate estimation: case study of the Izu-Bonin-Mariana subduction system.Geophysical Journal International,232(3),1886-1897.
MLA	Bai, Yongliang,et al."Along-strike island-arc crustal growth rate estimation: case study of the Izu-Bonin-Mariana subduction system".Geophysical Journal International 232.3(2023):1886-1897.