Late Cretaceous, Paleogene and Neogene Planktonic Foraminifera
Late Cretaceous, Paleogene and Neogene Planktonic Foraminifera
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晚白垩世、古近纪和新近纪浮游有孔虫
DOI：
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发表时间：
1973
期刊：
影响因子：
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通讯作者：
R. Hoskins
中科院分区：
文献类型：
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作者：
V. Krasheninnikov;R. Hoskins
在加罗林深渊平原边缘附近的 199、200、200A 和 202 号洞中发现了晚白垩世、古近纪和新近纪含有浮游有孔虫的钙质沉积物。这些孔洞的地层剖面相互补充，形成白垩纪和新生代矿床的不连续复合地层序列。对马斯特里赫特阶、古新世晚期、始新世早期和中期的某些区域以及从布尔迪加阶开始的几乎整个新近纪的沉积物进行了采样。尽管地层不完整，但这些剖面还是很有意义，因为太平洋热带地区晚白垩世、古近纪和新近纪的浮游有孔虫生物地层学尚未得到充分研究。站点 200 和 202 的有孔虫组合列于表 1 和表 2，站点 200 中新世至更新世的有孔虫组合如表 3 所示。
Late Cretaceous, Paleogene, and Neogene calcareous deposits containing planktonic foraminifera were recovered in Holes 199, 200, 200A, and 202 near the margin of the Caroline Abyssal Plain. Stratigraphic sections of these holes supplement one another to form a discontinuous composite stratigraphic succession of Cretaceous and Cenozoic deposits. The deposits of the Maastrichtian, late Paleocene, certain zones of the early and middle Eocene, and almost the whole Neogene beginning from the Burdigalian Stage were sampled. Despite stratigraphic incompleteness, these sections are of interest, since the planktonic foraminiferal biostratigraphy of the Late Cretaceous, Paleogene, and Neogene of the tropical area of the Pacific Ocean has been insufficiently studied. Foraminiferal assemblages of Sites 200 and 202 are listed in Tables 1 and 2, and their distribution in the Miocene through Pleistocene at Site 200 is shown in Table 3.