Constraints of magnetostratigraphic and mineralogical data on the provenance of sediments in the Parece Vela Basin of the western Pacific
文献类型：期刊论文
| 作者 | Xiao, Chunhui3,4; Wang, Yonghong3,4; Lin, Jian1,2 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2020 |
| 卷号 | 196页码:104373 |
| 关键词 | Parece Vela Basin Sediment provenance Sedimentary process Paleomagnetic age Environmental magnetism |
| ISSN号 | 1878-5786 |
| DOI | 10.1016/j.jseaes.2020.104373 |
| 英文摘要 | The sediment provenance and sedimentary processes of the Parece Vela Basin in the western Pacific during the last ca. 1 Myr were studied based on the analysis of magnetic properties, mineral features, and paleomagnetic ages of core C-P19. The results show that the sedimentary sequence has a lower limit age younger than 1.072 Ma, and the sedimentation process can be divided into two stages with sedimentation rates of 4.0 mm/kyr during ca. 1-0.78 Ma and 3.6 mm/kyr since 0.78 Ma. These sedimentation rates are higher than those in the surrounding area, where the sedimentation rate is generally less than 2 mm/kyr. Taken together with the mineral features and magnetic parameters, these findings show that volcanic sediments eroded from the nearby ridge were transported by currents to the sampling site. These volcanic sediments represent the main source of sediment in the area, with eolian inputs contributing little and nonbiogenic authigenic magnetite accounting for part of the magnetic fraction. The sedimentary environment and sediment provenance have varied during the last approximately 1 million years. During 997-880 ka, volcanic activity increased, and the input of volcanic clasts was high, whereas during 880-443 ka, the sedimentary environment tended to be stable, and the sediment supply decreased. With the increase in volcanic activity in the western Pacific, the sediment input increased again during ca. 443 ka-present. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18538]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol & Environm, Qingdao 266237, Peoples R China 2.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA 3.Ocean Univ China, MOE, Key Lab Submarine Geosci & Prospecting Tech, Qingdao 266100, Peoples R China 4.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China 5.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Chunhui,Wang, Yonghong,Lin, Jian. Constraints of magnetostratigraphic and mineralogical data on the provenance of sediments in the Parece Vela Basin of the western Pacific[J]. JOURNAL OF ASIAN EARTH SCIENCES,2020,196:104373. |
| APA | Xiao, Chunhui,Wang, Yonghong,&Lin, Jian.(2020).Constraints of magnetostratigraphic and mineralogical data on the provenance of sediments in the Parece Vela Basin of the western Pacific.JOURNAL OF ASIAN EARTH SCIENCES,196,104373. |
| MLA | Xiao, Chunhui,et al."Constraints of magnetostratigraphic and mineralogical data on the provenance of sediments in the Parece Vela Basin of the western Pacific".JOURNAL OF ASIAN EARTH SCIENCES 196(2020):104373. |
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来源：南海海洋研究所
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