Quantitative planktonic foraminifers taphonomy and palaeoceanographic implications over the last 1 My from IODP Sites U1436 and U1437
Quantitative planktonic foraminifers taphonomy and palaeoceanographic implications over the last 1 My from IODP Sites U1436 and U1437
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过去 1 My IODP 站点 U1436 和 U1437 的定量浮游有孔虫埋藏学和古海洋学意义
DOI：
10.1080/23312041.2018.1447263
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发表时间：
2018
影响因子：
--
通讯作者：
Mleneck-Vautravers M
中科院分区：
文献类型：
--
作者：
Mleneck-Vautravers M
国际海洋发现计划站点U1437和U1436是位于黑潮附近的两个中等水深站点，研究了浮游生物代用品、贝壳重量、碎片百分比、有孔虫浓度和底栖生物/浮游生物比率。在过去的1年里，有孔虫群落对当地温度的变化做出了反应。这些组合的划分限制了它们作为古气候记录的有效性，但在很大程度上提供了伊豆隆起两侧中间水团变化的定性信息。碳酸盐溶解(Cd)无处不在，而且在间冰期以东最浅的U1436地点总是更强烈。在U1437B(West)0.6 Ma以后，冰期碳酸盐保存有所改善，这可能是冰川南极中间水内部变化的信号，因此，其来源水是海洋同位素第16阶段的冰川北大西洋中间水。当时首次出现非常大的Laurentide冰盖被认为是这次观测的潜在间接原因。从MIS17开始的每一次间冰期碳酸盐溶解的加剧和其后各次冰期的较好保存，分别归因于间冰期北大西洋深水和北大西洋冰川中间水通过南极中间水的影响增强。
International Ocean Discovery Program Sites U1437 and U1436, two intermediate water depth sites located near the Kuroshio Current were studied for planktonic proxies, shell weights, percent fragments, foraminifers concentrations, and benthic/planktonic ratios. Over the last 1 My, the foraminifers assemblages responded to local temperature changes. The taphonomy of these assemblages limits their usefulness as palaeoclimatic records but greatly inform qualitatively of intermediate water mass changes on each side of the Izu Rise. Carbonate dissolution (CD) is pervasive and always more intense during interglacials at the shallowest Site U1436 to the East. Carbonate preservation improved during glacials after 0.6 Ma at U1437B (West) likely signaling changes within the glacial Antarctic Intermediate Water and therefore, its source water the Glacial North Atlantic Intermediate Water from Marine Isotope Stage 16. The first occurrence of a very large Laurentide ice-sheet at the time is proposed as a potential indirect cause for this observation. Both the intensification of carbonate dissolution during each interglacials from MIS17 onwards and the better preservation during succeeding glacials after that are attributed to the increasing influence of the North Atlantic Deep Water and the Glacial North Atlantic Intermediate Water via the Antarctic Intermediate Water during Interglacial and Glacial intervals, respectively.
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影响因子：
3.7
作者：
M. Schmidt;M. Vautravers;H. Spero
通讯作者：
M. Schmidt;M. Vautravers;H. Spero
影响因子：
64.8
作者：
Luethi, Dieter;Le Floch, Martine;Stocker, Thomas F.
通讯作者：
Stocker, Thomas F.
影响因子：
--
作者：
S. Gallagher;G. Villa;R. Drysdale;B. Wade;H. Scher;Qianyu Li;M. Wallace;G. Holdgate
通讯作者：
S. Gallagher;G. Villa;R. Drysdale;B. Wade;H. Scher;Qianyu Li;M. Wallace;G. Holdgate
DOI：
--
发表时间：
2004
期刊：
影响因子：
--
作者：
N. Lawrentschuk;P. Kearns
通讯作者：
P. Kearns
数据报告：更新世浮游有孔虫氧和碳稳定同位素记录及其用于改进在青岛火山东部发现的 U1436C 孔岩心年龄模型的用途
影响因子：
3.5
作者：
M. Vautravers
通讯作者：
M. Vautravers