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 |
DOI | 10.1029/2021PA004294 |
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. |
入库方式: OAI收割
来源:海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。