Discussion of Paleocene-Eocene Boundary of SanShui Basin

Liang Chen; Yan Shi Xie

doi:10.4028/www.scientific.net/AMR.236-238.2487

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 236-238Discussion of Paleocene-Eocene Boundary of SanShui...

Discussion of Paleocene-Eocene Boundary of SanShui Basin

Abstract:

Core SB-01 , located in SanShui Basin, contained two ostracode assemblages and two charophyte assemblages. Ostracode assemblages included Sinocypris nitela-Cyprois buxinensis-Limnocythere honggangensis assemblages (89.0-73.38m) and Sinocypris nitela-Cyprois buxinensis-Limnocythere honggangensis assemblages (73.38-0m); Charophyte assemblages consisted of Peckichara subspherica-Rhabdochara jiangduensis assemblages (89.0-73.38m) and Gyrogona qianjiangica-Obtusochara brevicylindrica（73.38-53.75m）assemblages. At 73.38 core depth, the abrupt change of microfossil assemblages took place, and δ¹³C and δ¹⁸O values of bulk carbonates also changed rapidly, the former decreased and the latter enhanced respectively. It consisted with the geological records of the Paleocene- Eocene Thermal Maximum ( PETM), hence Paleocene-Eocene boundary of SanShui Basin should be roughly placed at 73.38m core depth.

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Periodical:

Advanced Materials Research (Volumes 236-238)

Pages:

2487-2490

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.236-238.2487

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Online since:

May 2011

Authors:

Liang Chen, Yan Shi Xie

Keywords:

Microfossil, Paleocene-Eocene Boundary, Paleocene-Eocene Thermal Maximum, SanShui Basin

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