Calcareous nannofossil bioevents and microtektite stratigraphy in the Western Philippine Sea during the Quaternary
| Type | Article | ||||||||
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| Date | 2011-09 | ||||||||
| Language | English | ||||||||
| Author(s) | Sun Hanjie1, 2, Li Tiegang1, Sun Rongtao3, Yu Xinke1, Chang Fengming1, Tang Zheng1, 4 | ||||||||
| Affiliation(s) | 1 : Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China. 2 : Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China. 3 : Shandong Univ Technol, Sch Resource & Environm Engn, Zibo 255049, Peoples R China. 4 : Qingdao Inst Marine Geol, China Geol Survey, Qingdao 266007, Peoples R China. |
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| Source | Chinese Science Bulletin (1001-6538) (Science Press), 2011-09 , Vol. 56 , N. 25 , P. 2732-2738 | ||||||||
| DOI | 10.1007/s11434-011-4603-z | ||||||||
| WOS© Times Cited | 14 | ||||||||
| Keyword(s) | Western Philippine Sea, Quaternary Period, calcareous nannofossil biostratigraphy, oxygen isotope stratigraphy, Australasian microtektites | ||||||||
| Abstract | Two sediment cores, MD06-3050 and MD06-3047, were analyzed to study the Quaternary calcareous nannofossil and microtektite records. We dated bioevents and the microtektite impact event by calibrating with oxygen isotope stratigraphy. Seven calcareous nannofossil bioevents were identified over the past 2.36 Ma including the last appearance of data for Discoaster brouweri, Calcidiscus macintyrei, large Gephyrocapsa and Pseudoemiliania lacunosa, the first appearance of data for large Gephyrocapsa and Emiliania huxleyi, and the abrupt increase in the abundance of Gephyrocapsa caribbeanica. In addition, we fortunately observed that Australasian microtektites were distributed in core MD06-3050 from 1340 to 1374 cm. | ||||||||
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