Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system
文献类型：期刊论文
| 作者 | Lanci, Luca; Zanella, Elena; Jovane, Luigi; Galeotti, Simone; Alonso-Garcia, Montserrat; Alvarez-Zarikian, Carlos A.; Bejugam, Nagender Nath; Betzler, Christian; Bialik, Or M.; Blattler, Clara L. |
| 刊名 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
 |
| 出版日期 | 2019 |
| 卷号 | 533页码:109283 |
| 关键词 | Paleomagnetism Pliocene magnetic stratigraphy Anisotropy of isothermal remanent magnetization Currents strength Monsoon |
| DOI | 10.1016/j.palaeo.2019.109283 |
| 英文摘要 | We report a study of the magnetic stratigraphy and the anisotropy of isothermal remanent magnetization of Pliocene sediments from International Ocean Discovery Program (IODP) Site U1467 drilled in the Maldives platform (Indian Ocean) during Exp. 359. Magnetic stratigraphy gives a precise record of geomagnetic reversals of the early Pliocene from approximately 5.3 Ma to 3.1 Ma providing a detailed age model in an interval where the biostratigraphic record is scarce. We use the anisotropy of isothermal remanent magnetization (AIRM) to investigate the statistical orientation of fine magnetic particles and provide data on the strength and direction of bottom currents during the early Pliocene. The strength of bottom currents recorded by the AIRM, shows a prominent increase at the top of Chron C3n.1n (about 4.2 Ma), and the current direction (NE - SW) is consistent with that of modern instrumental measurements. Since bottom currents in the Maldives are driven by the monsoon, we speculate that the 4.2 Ma increase of bottom currents could mark the onset of the present-day setting, probably related to the coeval uplift phase of the Himalayan plateau. |
| 资助机构 | IODP-Italia; University of Urbino (DiSPeA) ; IODP-Italia; University of Urbino (DiSPeA) |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18259]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 推荐引用方式 GB/T 7714 | Lanci, Luca,Zanella, Elena,Jovane, Luigi,et al. Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2019,533:109283. |
| APA | Lanci, Luca.,Zanella, Elena.,Jovane, Luigi.,Galeotti, Simone.,Alonso-Garcia, Montserrat.,...&Young, Jeremy R..(2019).Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,533,109283. |
| MLA | Lanci, Luca,et al."Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 533(2019):109283. |
入库方式： OAI收割
来源：南海海洋研究所
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