Antarctic environmental variability since the late Miocene: ODP Site 745, the East Kerguelen sediment drift

Leah H. Joseph; David K. Rea; Ben A. van der Pluijm; James D. Gleason

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Antarctic environmental variability since the late Miocene: ODP Site 745, the East Kerguelen sediment drift

机译：中新世以来的南极环境变化：ODP 745号站点，东克格伦沉积物漂移

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Characterization of sediment from Ocean Drilling Program Site 745, representing the East Kerguelen Ridge sediment drift, addresses important issues surrounding the timing of Miocene to present East Antarctic ice sheet stability and oceanic environmental change. Our results show three periods of greatly enhanced accumulation of Antarctic-derived sediment, at 6.4-5.9 Ma, 4.9-4.4 Ma and 1.1-0.8 Ma, potentially indicative of warmer, less stable ice sheets at these times. Conversely, the accumulation of Antarctic-derived material is comparatively less during the middle of the Pliocene warm epoch (4.8-3.2 Ma). The deep flow forming the Kerguelen drift was stronger during the latest Miocene and earliest Pliocene and has decreased in intensity continuously since then.

机译：来自海洋钻探计划站点745的沉积物的表征，代表了东克格伦岭的沉积物漂移，解决了围绕中新世发生时间的重要问题，以展现东南极冰盖的稳定性和海洋环境的变化。我们的研究结果表明，南极衍生沉积物的蓄积三个时期大大增强，分别为6.4-5.9 Ma，4.9-4.4 Ma和1.1-0.8 Ma，这可能表明这些时期的冰盖温度更高，不稳定。相反，在上新世暖期中期（4.8-3.2 Ma），南极衍生物质的积累相对较少。在最新的中新世和最早的上新世期间，形成Kerguelen漂移的深部流动更强，此后强度不断降低。

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《Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System》 |2002年第1期|共16页
作者
Leah H. Joseph; David K. Rea; Ben A. van der Pluijm; James D. Gleason;
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正文语种 eng
中图分类天文学、地球科学;
关键词
east antarctica; antarctic ice sheet; kerguelen plateau; sediments; pliocene; paleoclimatology; ODP site 745;

机译：南极东部;南极冰原;克格伦高原;沉积物;中新世;古气候学;ODP位点745;

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1. Antarctic environmental variability since the late Miocene: ODP Site 745, the East Kerguelen sediment drift [J] . Leah H. Joseph, David K. Rea, Ben A. van der Pluijm, Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System . 2002,第1期

机译：中新世以来的南极环境变化：ODP 745号站点，东克格伦沉积物漂移
2. Late Quaternary variability of ocean circulation in the southeastern South Atlantic inferred from the terrigenous sediment record of a drift deposit in the southern Cape Basin (ODP Site 1089) [J] . Gerhard Kuhn, Bernhard Diekmann Palaeogeography, Palaeoclimatology, Palaeoecology: An International Journal for the Geo-Sciences . 2002,第3a4期

机译：根据南开普盆地南部（ODP站点1089）的漂移沉积物的陆源沉积记录，推断南大西洋东南部海洋环流的第四纪晚期变化。
3. Orbital-driven environmental changes recorded at ODP Site 959 (eastern equatorial Atlantic) from the Late Miocene to the Early Pleistocene [J] . Valle Francesca, Westerhold Thomas, Dupont Lydie M. International Journal of Earth Sciences . 2017,第3期

机译：从中新世晚期到早更新世，ODP 959号站点（赤道东大西洋）记录了轨道驱动的环境变化
4. Diagenetic zeolite and clay minerals in Miocene Great Bahama Bank carbonate sediments (ODP Leg 166, Site 1007) [C] . A.M.Karpoff, S.M.Bernasconi, C.Destrigneville, Water-Rock Interaction . 2001

机译：中新世大巴哈马河岸碳酸盐沉积物中的成岩沸石和粘土矿物（ODP第166条，站点1007）
5. Stratigraphy and sedimentology of eastern equatorial Pacific ODP site 677: Late Miocene through Pleistocene. [D] . Alexandrovich, Joanne Marie. 1992

机译：赤道东太平洋ODP站点677的地层和沉积学：晚中新世至更新世。
6. Phylogenetic Characterization of Marine Benthic Archaea in Organic-Poor Sediments of the Eastern Equatorial Pacific Ocean (ODP Site 1225) [O] . Antje Lauer, Ketil Bernt Sørensen, Andreas Teske 2016

机译：赤道东太平洋有机贫困沉积物中海洋底栖古生菌的系统发育特征（ODP站点1225）
7. Late Quaternary variability of ocean circulation in the southeastern South Atlantic inferred from the terrigenous sediment record of a drift deposit in the southern Cape Basin (ODP Site 1089) [O] . Kuhn Gerhard, Diekmann Bernhard 2002

机译：南开普敦盆地南部大西洋海洋环流晚第四纪变化由开普敦盆地南部漂流沉积物的陆源沉积记录推断（ODp site 1089）
8. Paleofaunal and Environmental Research on Miocene Fossil Sites TVOR SE and TVOR S on Fort Polk, Louisiana, with Continued Survey, Collection, Processing, and Documentation of other Miocene Localities [R] . Schiebout, J. A. , Ting, S. , Williams, M. , 2004

机译：位于路易斯安那州Fort polk的中新世化石遗址TVOR sE和TVOR s的古地质和环境研究，以及对其他中新世地区的持续调查，收集，处理和文件记录

Antarctic environmental variability since the late Miocene: ODP Site 745, the East Kerguelen sediment drift

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