@article{93b9bd101fcd468c9a65a898df674f57,
title = "Magnetic properties of early Pliocene sediments from IODP Site U1467 (Maldives platform) reveal changes in the monsoon system",
abstract = "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.",
keywords = "Anisotropy of isothermal remanent magnetization, Currents strength, Monsoon, Paleomagnetism, Pliocene magnetic stratigraphy",
author = "Luca Lanci and E. Zanella and L. Jovane and Simone Galeotti and Montserrat Alonso-Garc{\'i}a and Alvarez-Zarikian, {Carlos A.} and Bejugam, {Nagender Nath} and Christian Betzler and Bialik, {Or M.} and Bl{\"a}ttler, {Clara L.} and Eberli, {Gregor P.} and Guo, {Junhua Adam} and S{\'e}bastien Haffen and S. Horozal and Mayuri Inoue and Dick Kroon and Laya, {Juan Carlos} and Mee, {Anna Ling Hui} and Thomas L{\"u}dmann and Masatoshi Nakakuni and K. Niino and Petruny, {Loren M.} and Pratiwi, {Santi D.} and Reijmer, {John J.G.} and Jes{\'u}s Reolid and Slagle, {Angela L.} and Sloss, {Craig R.} and X. Su and Swart, {Peter K.} and Wright, {James D.} and Zhengquan Yao and Young, {Jeremy R.}",
note = "Funding Information: The authors thank the crew of the JOIDES Resolution. Financial support for this research was provided by IODP-Italia and University of Urbino (DiSPeA). Laboratory analyses were performed thanks to “Consorzio Interuniversitario di Magnetismo Naturale (CIMaN)”. Two anonymous reviewers contributed to improve the manuscript. Funding Information: The authors thank the crew of the JOIDES Resolution. Financial support for this research was provided by IODP-Italia and University of Urbino (DiSPeA). Laboratory analyses were performed thanks to ?Consorzio Interuniversitario di Magnetismo Naturale (CIMaN)?. Two anonymous reviewers contributed to improve the manuscript. Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",
year = "2019",
month = nov,
day = "1",
doi = "10.1016/j.palaeo.2019.109283",
language = "English",
volume = "533",
journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",
issn = "0031-0182",
publisher = "Elsevier",
}