安徽巢湖地区下三叠统牙形石生物地层分带及其全球对比

赵来时; 童金南; M.J.Orchard; 左景勋

Volume 30 Issue 5

Sep. 2005

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ZHAO Lai-shi, TONG Jin-nan, ZUO Jing-xun, 2005. Lower Triassic Conodont Zonations of Chaohu Area, Anhui Province and Their Global Correlation. Earth Science, 30(5): 623-634.

Citation:

ZHAO Lai-shi, TONG Jin-nan, ZUO Jing-xun, 2005. Lower Triassic Conodont Zonations of Chaohu Area, Anhui Province and Their Global Correlation. Earth Science, 30(5): 623-634.

ZHAO Lai-shi, TONG Jin-nan, ZUO Jing-xun, 2005. Lower Triassic Conodont Zonations of Chaohu Area, Anhui Province and Their Global Correlation. Earth Science, 30(5): 623-634.

Citation:

ZHAO Lai-shi, TONG Jin-nan, ZUO Jing-xun, 2005. Lower Triassic Conodont Zonations of Chaohu Area, Anhui Province and Their Global Correlation. Earth Science, 30(5): 623-634.

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Lower Triassic Conodont Zonations of Chaohu Area, Anhui Province and Their Global Correlation

1.
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
2.
Geological Survey of Canada, 101-605 Robson St., Vancouver V6B5J3, Canada
3.
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210018, China

Received Date: 2005-05-08
Publish Date: 2005-09-25

Abstract

Abstract

The paleogeographical setting of Chaohu during the Early Triassic was in the deep part of the Yangtze platform and the Lower Triassic sequence is complete throughout with rich and various fossils, especially distinct ammonoid and conodont biostratigraphic sequences, and it is one of the most typical sections of Early Triassic chronostratigraphy in the world. Lower Triassic conodont fossils were systematically collected from continuous sections of West Pingdingshan, North Pingdingshan and South Majiashan, Chaohu, Anhui Province on a sample-by-sample basis. Detailed zonations are made in each section. Eight conodont stratigraphic zones have been distinguished. They are, in ascending order, Hindeodus typicalis Zone, Neogondolella krystyni-Neogondolella planata Zone, Neospathodus kummeli Zone, and Neospathodus dieneri Zone, Neospathodus waageni Zone, Neospathodus pingdingshanensis Zone, Neospathodus homeri Zone, and Neospathodus anhuinensis Zone. They may be precisely correlated with contemporaneous ones in North America and other areas. These data are reliable evidence for erecting the global stratotype of the Induan-Olenekian boundary (GSSP).
- biostratigraphy,
- conodont zone,
- Lower Triassic,
- global correlation,
- Chaohu in Anhui Province

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References(59)

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Lower Triassic Conodont Zonations of Chaohu Area, Anhui Province and Their Global Correlation

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