Magnetic mineral tracing of sediment provenance in the central Bengal Fan
文献类型：期刊论文
| 作者 | Xuea, Pengfei1; Chang, Liao1,2; Wang, Shishun1; Liu, Shengfa2,3; Li, Jinhua2,4; Shi, Xuefa2,3; Khokiattiwong, Somkiat5; Kornkanitnan, Narumol5 |
| 刊名 | MARINE GEOLOGY
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 415页码:11 |
| ISSN号 | 0025-3227 |
| DOI | 10.1016/j.margeo.2019.05.014 |
| 英文摘要 | We present a comprehensive magnetic mineral analysis of surface sediments from 110 sites in the central Bengal Fan to trace sediment provenance. Multiple magnetic parameters, including magnetic mineralogy, concentration, and grain size were generated. Rock magnetic measurements indicate that the dominant magnetic minerals within the studied sediments are detrital magnetite and titanomagnetite, which is further confirmed directly by scanning electron microscope (SEM) and transmission electron microscope (TEM) observations on magnetic extracts. Fuzzy c-means clustering analysis of magnetic parameters indicates that the study area can be divided into three clusters. Considering the position of 'active valley', we further divide cluster 1 into clusters 1A and 1B. Cluster 1A primarily covers the west side of the 'active valley' with relatively high magnetic concentrations and dominantly coarse-grained magnetic minerals, which likely correspond to basaltic materials derived from the Deccan Plateau. From the Godavari river mouth to the inner Bay of Bengal, magnetic concentration gradually decreases with a fining trend of magnetic grain size. Clusters 1B, 2, and 3 are on the east side of the 'active valley', where magnetic concentration and magnetic grain size decrease with increasing distance to the 'active valley'. Combined with published data in the Indian region and the upper Bengal Fan, we suggest that the main provenances are the Himalayan and the Deccan Plateau, whose contributions to sediment distribution are quantitatively assessed. Our analysis suggests that the position of 'active valley' plays a key role in sediment distribution in the central Bengal Fan, while the effect of ocean currents is negligible. |
| WOS关键词 | CHANNEL-LEVEE SYSTEM ; ENVIRONMENTAL MAGNETISM ; SURFACE SEDIMENTS ; PARTICLE-SYSTEMS ; REMANENCE CURVES ; GRAIN-SIZE ; BAY ; COMPONENTS ; SEA ; STRATIGRAPHY |
| 资助项目 | Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology[MGQNLM201701] ; National Programme on Global Change and Air Sea Interaction[GASI-02-IND-CJ01] ; National Programme on Global Change and Air Sea Interaction[GASI-GEOGE-06-03] ; National Natural Science Foundation of China[41574060] ; National Natural Science Foundation of China[41722402] ; National Natural Science Foundation of China[41676054] ; National Natural Science Foundation of China[U1606401] ; "1000 Talents Plan" program of China ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" |
| WOS研究方向 | Geology ; Oceanography |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000481723500006 |
| 资助机构 | Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Programme on Global Change and Air Sea Interaction ; National Programme on Global Change and Air Sea Interaction ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "1000 Talents Plan" program of China ; "1000 Talents Plan" program of China ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Programme on Global Change and Air Sea Interaction ; National Programme on Global Change and Air Sea Interaction ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "1000 Talents Plan" program of China ; "1000 Talents Plan" program of China ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Programme on Global Change and Air Sea Interaction ; National Programme on Global Change and Air Sea Interaction ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "1000 Talents Plan" program of China ; "1000 Talents Plan" program of China ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Programme on Global Change and Air Sea Interaction ; National Programme on Global Change and Air Sea Interaction ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "1000 Talents Plan" program of China ; "1000 Talents Plan" program of China ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" ; China-Thailand cooperation project "Research on Vulnerability of Coastal Zones" |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/93366]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Chang, Liao; Shi, Xuefa |
| 作者单位 | 1.Peking Univ, Sch Earth & Space Sci, Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Shandong, Peoples R China 3.Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Shandong, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 5.Marine & Coastal Resources Res & Dev Inst, Dept Marine & Coastal Resources, Bangkok 10210, Thailand |
| 推荐引用方式 GB/T 7714 | Xuea, Pengfei,Chang, Liao,Wang, Shishun,et al. Magnetic mineral tracing of sediment provenance in the central Bengal Fan[J]. MARINE GEOLOGY,2019,415:11. |
| APA | Xuea, Pengfei.,Chang, Liao.,Wang, Shishun.,Liu, Shengfa.,Li, Jinhua.,...&Kornkanitnan, Narumol.(2019).Magnetic mineral tracing of sediment provenance in the central Bengal Fan.MARINE GEOLOGY,415,11. |
| MLA | Xuea, Pengfei,et al."Magnetic mineral tracing of sediment provenance in the central Bengal Fan".MARINE GEOLOGY 415(2019):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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