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Neogene Mass Accumulation Rate of Carbonate Sediment Across Northern Zealandia, Tasman Sea, Southwest Pacific

文献类型:期刊论文

作者Sutherland, R.17; Dos Santos, Z.17; Agnini, C.16; Alegret, L.15; Lam, A. R.13,14; Westerhold, T.11,12; Drake, M. K.10; Harper, D. T.9; Dallanave, E.11,12; Newsam, C.8
刊名PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
出版日期2022-02-01
卷号37期号:2页码:22
关键词paleoceanography biogenic bloom Neogene Miocene Pliocene
ISSN号2572-4517
DOI10.1029/2021PA004294
通讯作者Sutherland, R.(rupert.sutherland@vuw.ac.nz)
英文摘要Sediment mass accumulation rate (MAR) is a proxy for paleoceanographic conditions, especially if biological productivity generated most of the sediment. We determine MAR records from pelagic calcareous sediments in Tasman Sea based on analysis of 11 boreholes and >3 million seismic reflection horizon picks. Seismic data from regions of 10,000-30,000 km(2) around each borehole were analyzed using data from International Ocean Discovery Program Expedition 371 and other boreholes. Local MAR was affected by deepwater currents that winnowed, eroded, or deposited seafloor sediment. Therefore, it is necessary to average MARs across regions to test paleoceanographic and productivity models. MARs during the Miocene Climate optimum (18-14 Ma) were slightly lower than Quaternary values but increased on southern Lord Howe Rise at 14-13 Ma, when global climate became colder. Intensification of the Indian and East Asian monsoons at similar to 8 Ma and similar to 3.6 Ma approximately corresponds to the start and end, respectively, of the Biogenic Bloom, which had MARs at least double Quaternary values. On northern Lord Howe Rise, we recognize peak MARs at similar to 7 Ma and similar to 5 Ma. There is no correlation between Neogene MAR and ocean pH or atmospheric CO2 concentration. Neogene MARs are on average higher than Quaternary values. We posit that future long-term productivity in the southwest Pacific could be higher than Quaternary values, but new computer models that can fit our observations are required to test this hypothesis.
资助项目NSF ; DFG[408178503] ; DFG[446583469] ; Spanish Ministry of Science and Innovation and FEDER funds[PID2019-105537RB-I00]
WOS研究方向Geology ; Oceanography ; Paleontology
语种英语
WOS记录号WOS:000763496800013
出版者AMER GEOPHYSICAL UNION
源URL[http://ir.qdio.ac.cn/handle/337002/178155]  
专题中国科学院海洋研究所
通讯作者Sutherland, R.
作者单位1.Univ Southampton, Ocean & Earth Sci, Natl Oceanog Ctr, Southampton, Hants, England
2.Museum Nat Kunde, Leibniz Inst Evolut & Biodiversitatsforsch, Berlin, Germany
3.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
4.Rutgers State Univ, Environm & Amp Biol Sci, New Brunswick, NJ USA
5.GNS Sci, Lower Hutt, New Zealand
6.Geol Survey New Caledonia, DIMENC, Noumea, New Caledonia
7.Trinity Coll Dublin, Dept Geol, Dublin, Ireland
8.UCL, Earth Sci, London, England
9.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA
10.Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 95064 USA
推荐引用方式
GB/T 7714
Sutherland, R.,Dos Santos, Z.,Agnini, C.,et al. Neogene Mass Accumulation Rate of Carbonate Sediment Across Northern Zealandia, Tasman Sea, Southwest Pacific[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2022,37(2):22.
APA Sutherland, R..,Dos Santos, Z..,Agnini, C..,Alegret, L..,Lam, A. R..,...&Asatryan, G..(2022).Neogene Mass Accumulation Rate of Carbonate Sediment Across Northern Zealandia, Tasman Sea, Southwest Pacific.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,37(2),22.
MLA Sutherland, R.,et al."Neogene Mass Accumulation Rate of Carbonate Sediment Across Northern Zealandia, Tasman Sea, Southwest Pacific".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 37.2(2022):22.

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来源:海洋研究所

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