作者
Sunil K Das, N Mahanta, B Sahoo, Raj K Singh, Carlos A Alvarez Zarikian, Manish Tiwari, Nishant Vats, Frank Lamy, Gisela Winckler, Jennifer L Middleton, Helge W Arz, Julia Gottschalk, Chandranath Basak, Anieke Brombacher, Oliver M Esper, Jesse R Farmer, Lisa C Herbert, Shinya Iwasaki, Lester Lembke-Jene, Vera J Lawson, Li Lo, Elisa Malinverno, Elisabeth Michel, Simone Moretti, Christopher M Moy, Ana Christina Ravelo, Christina R Riesselman, Mariem Saavedra-Pellitero, Inah Seo, Rebecca A Smith, Alexandre L Souza, Joseph S Stoner, Igor Venancio MP de Oliveira, Sui Wan, Xiangyu Zhao
发表日期
2024/5/7
期刊
Palaeogeography, Palaeoclimatology, Palaeoecology
页码范围
112252
出版商
Elsevier
简介
The bottom water conditions in the Central South Pacific (CSP) and associated changes in the Lower Circumpolar Deep Water (LCDW) and Antarctic Bottom Water (AABW) under warmer-than-present conditions need to be better understood. These water masses transfer their properties to the major ocean basins. We analyzed Late Miocene to Early Pliocene (5.6–3.6 Ma) marine sediment core sections from the CSP for benthic foraminifera, ice rafted debris (IRD), Ostracoda, planktic foraminifera Orbulina universa abundance, and organic geochemical proxies to assess the bottom water characteristics under warmer-than-present day conditions. A significant increase in IRD abundance between 5.3 and 4.9 Ma marks the Early Pliocene warm phase. The benthic foraminiferal assemblage findings indicate shifts in bottom water conditions over time in the CSP region. Between 5.6 and 5.3 Ma, predominantly …
学术搜索中的文章
SK Das, N Mahanta, B Sahoo, RK Singh, CAA Zarikian… - Palaeogeography, Palaeoclimatology, Palaeoecology, 2024