• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of nannoplankton research: A publication of the International Nannoplankton Association >A new Paleocene-Eocene thermal maximum record from Deep Sea Drilling Project Site 277 (Campbell Plateau): a window into calcareous nannofossil response in the southern high latitudes
【24h】

A new Paleocene-Eocene thermal maximum record from Deep Sea Drilling Project Site 277 (Campbell Plateau): a window into calcareous nannofossil response in the southern high latitudes

机译：深海钻探项目站点277（坎贝尔高原）的新古新世-始新世最高热记录：南部高纬度地区钙质纳米化石反应的窗口

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We recently discovered an intact Paleocene-Eocene boundary and record of the initial onset of the Paleocene-Eocene Thermal Maximum (PETM) in a 34-cm-thick interval of Deep Sea Drilling Project (DSDP) Site 277 (Hollis et al., submitted). This site was drilled on the western margin of the Campbell Plateau in the southwest Pacific Ocean (paleolatitude ~65°S),and together with Ocean Drilling Program Site 1172 (Tasman Plateau), it represents the southernmost record of the PETM in the Pacific Ocean. We conducted high-resolution geochemical and paleontological studies to characterize this interval, which show that the PETM is truncated, with some or all of the main phase missing due to either a hiatus or drilling disturbance. Diagenesis at this site affects the stable isotope records; however, laser ablation Mg/Ca measurements on foraminifers show that sea-surface and intermediate water temperatures rose by ~6°C at the onset of the PETM and then remained relatively stable before declining abruptly across the hiatus.
机译：我们最近发现了一个完整的古新世-始新世边界，并记录了深海钻探项目（DSDP）站点277中34厘米厚的古新世-始新世热最大值（PETM）的初始发作（Hollis等，已提交）。该站点是在西南太平洋坎贝尔高原西缘（古纬度〜65°S）上钻探的，与海洋钻探计划站点1172（塔斯曼高原）一起，代表了太平洋PETM的最南端记录。我们进行了高分辨率的地球化学和古生物学研究，以表征该间隔，这表明PETM被截断，由于裂孔或钻探干扰，部分或全部主相缺失。该位点的成岩作用影响稳定的同位素记录。但是，对有孔虫进行的激光烧蚀Mg / Ca测量表明，在PETM发作时，海面和中间水温上升了约6°C，然后保持相对稳定，然后在整个裂隙处突然下降。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号