Formation mechanism of the moniliform seamounts outside the West Melanesian Trench

doi:10.1002/gj.2979

	Formation mechanism of the moniliform seamounts outside the West Melanesian Trench
	Zhang, Zhen 1,2,3; Li, Sanzhong 1,2,3; Tian, Jiwei 4; Yang, Pengjin 5; Ding, Dong 1,2; Zang, Yibo 1,2,3; Li, Shaojun 1,2,3; Mu, Dunling 1,2,3
刊名	GEOLOGICAL JOURNAL
	2018-07-01
卷号	53 期号:4 页码:1604-1610
关键词	Caroline Plate seamounts shear faults topography
ISSN号	0072-1050
DOI	10.1002/gj.2979
英文摘要	Our study on the seamounts in the southeast Caroline Plate reveals a formation of a special kind of seamounts in the oceanic basin. These moniliform seamounts link up like the reason of hotspots, but the tectonic factors lead to their formation. The differential motions of the Caroline, North Bismarck, and Pacific plates resulted in the shear stress field by the West Melanesian Trench. The R and R faults can be distinguished obviously by seafloor topography. The evolution history of these seamounts can be subdivided into two stages as follows. (a) The R faults developed firstly as normal faults to generate ridges on these faults as the release of the underlying sediments. (b) The R faults appeared as shear faults and cut off the ridge from the older R faults. These faults can be very deep fractures, which cut through the lithosphere and produced a NW-trending negative anomaly in isostatic gravity anomaly. As the pressure is released by the R faults, the sediments releasing under the R faults accumulated into these seamounts. The other sections of the R faults performed like a valley because of the leakage of sediments along the faults. Sediments would also release along the R faults to generate ridges when no seamount occurs on the faults.
资助项目	Qingdao National Laboratory for Marine Science and Technology[2015ASTP-S10]
WOS关键词	PAPUA-NEW-GUINEA ; RIDGE ACCRETIONARY COMPLEX ; SEDIMENT DEFORMATION ; SUBDUCTION ZONE ; EVOLUTION ; PACIFIC ; TECTONICS ; SEA ; RECONSTRUCTION ; CONVERGENCE
WOS研究方向	Geology
语种	英语
出版者	WILEY
WOS记录号	WOS:000437675500024
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25015]
专题	自然资源部第一海洋研究所
通讯作者	Li, Sanzhong
作者单位	1.Ocean Univ China, Key Lab Seabed Resource & Explorat Tech, Minist Educ, Qingdao, Peoples R China 2.Ocean Univ China, Coll Marine Geosci, Qingdao, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 4.Ocean Univ China, Key Lab Phys Oceanog, Qingdao, Peoples R China 5.State Ocean Adm, North China Sea Environm Monitoring Ctr, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhen,Li, Sanzhong,Tian, Jiwei,et al. Formation mechanism of the moniliform seamounts outside the West Melanesian Trench[J]. GEOLOGICAL JOURNAL,2018,53(4):1604-1610.
APA	Zhang, Zhen.,Li, Sanzhong.,Tian, Jiwei.,Yang, Pengjin.,Ding, Dong.,...&Mu, Dunling.(2018).Formation mechanism of the moniliform seamounts outside the West Melanesian Trench.GEOLOGICAL JOURNAL,53(4),1604-1610.
MLA	Zhang, Zhen,et al."Formation mechanism of the moniliform seamounts outside the West Melanesian Trench".GEOLOGICAL JOURNAL 53.4(2018):1604-1610.