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Magnetostratigraphic evidence for deep-sea erosion on the Pacific Plate, south of Mariana Trench, since the middle Pleistocene: potential constraints for Antarctic bottom water circulation
Deng, Xiguang1; Yi, Liang2,3; Paterson, Greig A.4; Qin, Huafeng2; Wang, Haifeng1; Yao, Huiqiang1; Ren, Jiangbo1; Ge, Junyi5; Xu, Hongzhou3; Deng, Chenglong2; Zhu, Rixiang2
2016-01-02
Source PublicationINTERNATIONAL GEOLOGY REVIEW
Volume58Issue:1Pages:49-57
AbstractThe Antarctic Bottom Water (AABW) current plays a crucial role in storing and transporting heat, water, and nutrients around the world. However, it is impossible to monitor AABW in the Plio-Pleistocene by direct measurement. Hence, abyssal erosion was usually chosen as an effective indicator of the presence of the AABW in the Indian and Eastern Pacific Oceans during that period. Here, we report a high-resolution magnetostratigraphy of a gravity core, the JL7KGC-01A from the south of the Mariana Trench, northwest Pacific Ocean. The main results are as follows: (1) polarity data suggest that the sequence recorded the late Gauss chron to the early Brunhes chron, including the Jaramillo, Cobb Mountain, and Olduvai normal subchrons; (2) the sedimentary processes in the study area since 2.9Ma show three stages of sedimentation: 83cm/Ma during 2.9-1.2Ma, 183cm/Ma during 1.2-0.7Ma, and no sedimentation since similar to 0.7Ma; (3) the area south of the Mariana Trench experienced a significant change in the deposition rate at 1.2Ma, which could be correlated with the intensified desertification in inland Asia, and experienced a prominent depositional hiatus since the early middle Pleistocene, which likely resulted from the enhanced/expanded AABW. Based on these new polarity data and comparisons with previous studies around the Pacific Ocean, we therefore propose that the AABW experienced a notable change during the early-mid Pleistocene transition.
SubtypeArticle
KeywordMariana Trench Magnetostratigraphy Plio-pleistocene Abyssal Erosion
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1080/00206814.2015.1055597
URL查看原文
Indexed BySCI
Language英语
WOS KeywordISOTHERMAL REMANENT MAGNETIZATION ; MANGANESE-NODULE DEVELOPMENT ; RARE-EARTH-ELEMENTS ; ACQUISITION CURVES ; ROSS-SEA ; MYR AGO ; OCEAN ; SEDIMENTS ; HYSTERESIS ; CONTRASTS
WOS SubjectGeology
WOS IDWOS:000361703200004
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/496
Collection深海科学研究部_深海地球物理与资源研究室
Affiliation1.Guangzhou Marine Geol Survey, Minist Land & Resources, Key Lab Marine Mineral Resources, Guangzhou, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
3.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Vertebrate Palaeontol & Palaeoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Deng, Xiguang,Yi, Liang,Paterson, Greig A.,et al. Magnetostratigraphic evidence for deep-sea erosion on the Pacific Plate, south of Mariana Trench, since the middle Pleistocene: potential constraints for Antarctic bottom water circulation[J]. INTERNATIONAL GEOLOGY REVIEW,2016,58(1):49-57.
APA Deng, Xiguang.,Yi, Liang.,Paterson, Greig A..,Qin, Huafeng.,Wang, Haifeng.,...&Zhu, Rixiang.(2016).Magnetostratigraphic evidence for deep-sea erosion on the Pacific Plate, south of Mariana Trench, since the middle Pleistocene: potential constraints for Antarctic bottom water circulation.INTERNATIONAL GEOLOGY REVIEW,58(1),49-57.
MLA Deng, Xiguang,et al."Magnetostratigraphic evidence for deep-sea erosion on the Pacific Plate, south of Mariana Trench, since the middle Pleistocene: potential constraints for Antarctic bottom water circulation".INTERNATIONAL GEOLOGY REVIEW 58.1(2016):49-57.
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