The Pliocene-Pleistocene boundary in pelagic oozes off Reunion Island, western Indian Ocean

被引：0
作者：
Duczmal-Czernikiewicz, Agata
Jugowiec-Nazarkiewicz, Malgorzata
Szydlo, Andrzej
机构：
[1] Adam Mickiewicz Univ Poznan, Inst Geol, PL-61686 Poznan, Poland
[2] Polish Geol Inst, Carpathian Branch, PL-31560 Krakow, Poland
来源：
ACTA GEOLOGICA POLONICA | 2006年 / 56卷 / 04期
关键词：
Reunion Island; Indian Ocean; biostratigraphy; calcareous nannoplankton; foraminifers; pelagic ooze;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Nannoplankton and foraminifera from the pelagic oozes from a water depth of 3 684 meters, 150 km southeast of Reunion Island, Indian Ocean, prove the NN18 and NN19 nannoplankton zones, indicating the Pliocene - Pleistocene boundary. The Pliocene - Pleistocene boundary was established at 220 - 230 cm depth. The abundance of Globorotalia truncatulinoides increases from about 50 cm below the sea floor. The microfossil assemblages and clay mineral components of the sediments may be correlated with changes of climatic conditions influenced by glaciations.
引用
收藏
页码：407 / 419
页数：13
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