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المؤلفNeelavannan, Kannaiyan
المؤلفHussain, Shaik Mohammad
المؤلفSangode, Satish J.
المؤلفPrakasam, Muthusamy
المؤلفSen, Indra Sekhar
المؤلفVeerasingam, Subramanian
المؤلفTyagi, Abhishek
المؤلفKumar, Pankaj
المؤلفSingh, Pramod
تاريخ الإتاحة2022-02-20T06:35:16Z
تاريخ النشر2022-04-01
اسم المنشورJournal of Asian Earth Sciences
المعرّفhttp://dx.doi.org/10.1016/j.jseaes.2022.105086
الاقتباسKannaiyan Neelavannan, Shaik Mohammad Hussain, Satish J. Sangode, Muthusamy Prakasam, Indra Sekhar Sen, Subramanian Veerasingam, Abhishek Tyagi, Pankaj Kumar, Pramod Singh, A 51 ka sedimentary sequence in a seamount basin, Eastern Arabian Sea: Records for paleoceanographic and paleoclimate conditions, Journal of Asian Earth Sciences, Volume 226, 2022, 105086, ISSN 1367-9120, https://doi.org/10.1016/j.jseaes.2022.105086
الرقم المعياري الدولي للكتاب13679120
المعرّف105086
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85122536884&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/27287
الملخصA 5.4 m thick sediment core at ∼ 517 m water depth from a seamount basin off the Goa coast in the Eastern Arabian Sea (EAS) is examined for the mineral magnetic, carbonate and organic carbon variability. The 51 ka BP dated record is represented by Marine Isotope Stages (MIS) 3 to 1 under varying rates of sedimentation from 1.9 to 5.2 cm/ka. Comparison with records from adjacent cores for OC, TN, and CaCO3, this study indicates strong coupling of the seamount basin sedimentation with paleo-oceanographic conditions governed by southwest (SW) monsoon. The mineral magnetic parameters assigned three zones of variable paleo-oceanographic-paleoclimatic conditions marked by the interplay of high coercivity (oxidative) and low coercivity (reducing) mineralogy, that can be attributed to various factors including ocean ventilation governed by bottom water inflow of oxygen-depleted Sub-Antarctic Mode Waters and Antarctic Intermediate Water flows (SAMW-AAIW). This study emphasizes the significance of seamount basins as faithful recorders of long-term thermocline changes along with strong coupling to paleoceanographic conditions.
راعي المشروعThe author K.N is grateful to the Department of Science and Tech- nology, Promotion of University Research and Scientific Excellence (DST-PURSE), for providing Junior Research Fellowship (JRF), File No. C.5/JRF-PURSE Phase II/ Geology /2014/655/ DT: 15.12.2014.
اللغةen
الناشرElsevier
الموضوعEastern Arabian Sea
Marine Isotope Stage
Off Goa
Paleoceanographic
Seamount basin
العنوانA 51 ka sedimentary sequence in a seamount basin, Eastern Arabian Sea: Records for paleoceanographic and paleoclimate conditions
النوعArticle
رقم المجلد226
dc.accessType Abstract Only


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