气候变化领域集成服务门户(CCPortal): Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system

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DOI	10.1016/j.palaeo.2019.109283
	Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system
	Lanci L.; Zanella E.; Jovane L.; Galeotti S.; Alonso-García M.; Alvarez-Zarikian C.A.; Bejugam N.N.; Betzler C.; Bialik O.M.; Blättler C.L.; Eberli G.P.; Guo J.A.; Haffen S.; Horozal S.; Inoue M.; Kroon D.; Laya J.C.; Mee A.L.H.; Lüdmann T.; Nakakuni M.; Niino K.; Petruny L.M.; Pratiwi S.D.; Reijmer J.J.G.; Reolid J.; Slagle A.L.; Sloss C.R.; Su X.; Swart P.K.; Wright J.D.; Yao Z.; Young J.R.
发表日期	2019
ISSN	0031-0182
卷号	533
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. © 2019 Elsevier B.V.
英文关键词	Anisotropy of isothermal remanent magnetization; Currents strength; Monsoon; Paleomagnetism; Pliocene magnetic stratigraphy
语种	英语
scopus关键词	biostratigraphy; bottom current; current direction; magnetic property; monsoon; paleomagnetism; Pliocene; remanent magnetization; Indian Ocean; Maldives
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150816
作者单位	Department of Pure and Applied Science, University of Urbino, Via S. Chiara 27, Urbino, 61029, Italy; Alpine Laboratory of Paleomagnetism ALP - CIMaN, Via G.U. Massa 6, Peveragno, 12016, Italy; Department of Earth Sciences, University of Turin, Via Valperga Caluso 35, Turin, 10125, Italy; Instituto Oceanográfico da Universidade de São Paulo, Praça do Oceanográfico, 191, São Paulo, SP 05508-120, Brazil; Divisão de Geologia e Georecursos Marinhos, Instituto Portugues do Mar e da Atmosfera (IPMA), Avenida de Brasilia 6, Lisbon, 1449-006, Portugal; Centro de Ciencias do Mar (CCMAR), Universidade do Algarve, Faro, Portugal; International Ocean Discovery Program, Texas A&M University, 1000 Discovery Drive, College Station, TX 77845, United States; Institute for Geology, CEN, University of Hamburg, Bundesstrasse 55, Hamburg, 20146, Germany; Dr. Moses Strauss Department of Marine Geosciences, The Leon H. Charney School of Marine Sciences, University of Haifa, Carmel, 31905, Israel; Department of the Geophysical...
推荐引用方式 GB/T 7714	Lanci L.,Zanella E.,Jovane L.,et al. Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system[J],2019,533.
APA	Lanci L..,Zanella E..,Jovane L..,Galeotti S..,Alonso-García M..,...&Young J.R..(2019).Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system.Palaeogeography, Palaeoclimatology, Palaeoecology,533.
MLA	Lanci L.,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).