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The abrupt onset of the modern South Asian Monsoon winds
Betzler, Christian; Eberli, Gregor P.; Kroon, Dick; Wright, James D.; Swart, Peter K.; Nath, Bejugam Nagender; Alvarez-Zarikian, Carlos A.; Alonso-Garcia, Montserrat; Bialik, Or M.; Blattler, Clara L.; Guo, Junhua Adam; Haffen, Sebastien; Horozal, Senay; Inoue, Mayuri; Jovane, Luigi; Lanci, Luca; Laya, Juan Carlos; Mee, Anna Ling Hui; Luedmann, Thomas; Nakakuni, Masatoshi; Niino, Kaoru; Petruny, Loren M.; Pratiwi, Santi D.; Reijmer, John J. G.; Reolid, Jesus; Slagle, Angela L.; Sloss, Craig R.; Su, Xiang; Yao, Zhengquan; Young, Jeremy R.; Betzler, C (reprint author), Univ Hamburg, CEN, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany.
AbstractThe South Asian Monson (SAM) is one of the most intense climatic elements yet its initiation and variations are not well established. Dating the deposits of SAM wind-driven currents in IODP cores from the Maldives yields an age of 12.9 Ma indicating an abrupt SAM onset, over a short period of 300 kyrs. This coincided with the Indian Ocean Oxygen Minimum Zone expansion as revealed by geochemical tracers and the onset of upwelling reflected by the sediment's content of particulate organic matter. A weaker 'proto-monsoon' existed between 12.9 and 25 Ma, as mirrored by the sedimentary signature of dust influx. Abrupt SAM initiation favors a strong influence of climate in addition to the tectonic control, and we propose that the post Miocene Climate Optimum cooling, together with increased continentalization and establishment of the bipolar ocean circulation, i.e. the beginning of the modern world, shifted the monsoon over a threshold towards the modern system.
Department[Betzler, Christian; Luedmann, Thomas; Reolid, Jesus] Univ Hamburg, CEN, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany; [Eberli, Gregor P.; Swart, Peter K.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Dept Marine Geosci, 4600 Rickenbacker Causeway, Miami, FL 33149 USA; [Kroon, Dick] Univ Edinburgh, Dept Geol & Geophys, Grant Inst, Kings Bldg,West Mains Rd, Edinburgh EH9 3JW, Midlothian, Scotland; [Wright, James D.] Rutgers State Univ, Dept Geol Sci, 610 Taylor Rd, Piscataway, NJ 08854 USA; [Nath, Bejugam Nagender] CSIR Natl Inst Oceanog, Geol Oceanog Div, Panaji 403004, Goa, India; [Alvarez-Zarikian, Carlos A.] Texas A&M Univ, Int Ocean Discovery Program, Discovery Dr, College Stn, TX 77845 USA; [Alonso-Garcia, Montserrat] IPMA, Div Geol & Georecursos Marinhos, Ave Brasilia 6, P-1449006 Lisbon, Portugal; [Alonso-Garcia, Montserrat] Univ Algarve, CCMAR, Faro, Portugal; [Bialik, Or M.] Univ Haifa, Leon H Charney Sch Marine Sci, Dr Moses Strauss Dept Marine Geosci, IL-31905 Carmel, Israel; [Blattler, Clara L.] Princeton Univ, Dept Geosci, Guyot Hall, Princeton, NJ 08544 USA; [Guo, Junhua Adam] Calif State Univ Bakersfield, Dept Geol Sci, 9001 Stockdale Highway, Bakersfield, CA 93311 USA; [Haffen, Sebastien] Univ Lorraine, Ecole Natl Super Geol, 2 Rue Doyen Marcel Roubault, F-54501 Vandoeuvre Les Nancy, France; [Horozal, Senay] Korea Inst Geosci & Mineral Resources KIGAM, Petr & Marine Res Div, Gwahang No 124, Daejeon 305350, South Korea; [Inoue, Mayuri] Okayama Univ, Grad Sch Nat Sci & Technol, 3-1-1 Tsushima Naka, Okayama 7008530, Japan; [Jovane, Luigi] Univ Sao Paulo, Inst Oceanog, Praca Oceanog 191, BR-05508120 Sao Paulo, SP, Brazil; [Lanci, Luca] Univ Urbino, Ist Sci Terra, Via S Chiara 27, I-61029 Urbino, Italy; [Laya, Juan Carlos] Texas A&M Univ, Dept Geol & Geophys, Mail Stop 3115, College Stn, TX 77843 USA; [Nakakuni, Masatoshi] Soka Univ, Dept Environm Engn Symbiosis, 1-236 Tangi Cyo, Hachioji, Tokyo 1920003, Japan; [Niino, Kaoru] Yamagata Univ, Grad Sch Sci & Engn, 1-4-12 Kojirakawa Machi, Yamagata 9908560, Japan; [Petruny, Loren M.] George Mason Univ, Environm Sci & Policy Dept, David King Hall Rm 3005,MSN 5F2,Univ Dr, Fairfax, VA 22030 USA; [Pratiwi, Santi D.] Akita Univ, Dept Geosci Geotechnol & Mat Engn Resources, 1-1 Teagata Gakuencho, Akita 0108502, Japan; [Reijmer, John J. G.] Vrije Univ Amsterdam, Dept Earth & Life Sci, De Boelelaan 1085, NL-1085 HV Amsterdam, Netherlands; [Slagle, Angela L.] Columbia Univ, Lamont Doherty Geol Observ, Borehole Bldg 61 Route 9W, Palisades, NY 10964 USA; [Sloss, Craig R.] Queensland Univ Technol, Earth & Environm Sci, R Block 317,2 George St, Brisbane, Qld 4001, Australia; [Su, Xiang] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China; [Yao, Zhengquan] SOA, FIO, Dept Marine Geol, 6 Xian Xia Ling Rd, Qingdao 266061, Shandong, Peoples R China; [Yao, Zhengquan] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China; [Young, Jeremy R.] UCL, Dept Earth Sci, Gower St, London WC1E 6BT, England ; 边缘海地质
Subject AreaScience & Technology - Other Topics
Document Type期刊论文
Corresponding AuthorBetzler, C (reprint author), Univ Hamburg, CEN, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany.
Recommended Citation
GB/T 7714
Betzler, Christian,Eberli, Gregor P.,Kroon, Dick,et al. The abrupt onset of the modern South Asian Monsoon winds[J]. SCIENTIFIC REPORTS,2016,6:29838.
APA Betzler, Christian.,Eberli, Gregor P..,Kroon, Dick.,Wright, James D..,Swart, Peter K..,...&Betzler, C .(2016).The abrupt onset of the modern South Asian Monsoon winds.SCIENTIFIC REPORTS,6,29838.
MLA Betzler, Christian,et al."The abrupt onset of the modern South Asian Monsoon winds".SCIENTIFIC REPORTS 6(2016):29838.
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