The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China
The Global boundary Stratotype Section and Point (GSSP) for the base of the Guzhangian Stage (Cambrian Series 3) is defined at the base of a limestone (calcisiltite) layer 121.3 in above the base of the Huagiao Formation in the Louyixi section along the Youshui River (Fengtan Reservoir), about 4 km...
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GEOLOGICAL SOC INDIA
2009
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/19508 2023-05-15T14:04:23+02:00 The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China Peng, Shanchi Babcock, Loren E. Zuo, Jingxun Lin, Huanling Zhu, Xuejian Yang, Xianfeng Robison, Richard A. Qi, Yuping Bagnoli, Gabriella Chen, Yong'an 2009-03-01 http://ir.nigpas.ac.cn/handle/332004/19508 英语 eng GEOLOGICAL SOC INDIA EPISODES http://ir.nigpas.ac.cn/handle/332004/19508 SOUTH CHINA SERIES MIDDLE EVOLUTION REVISION SYSTEM TIME SUBDIVISION ANTARCTICA TRILOBITES Geology Geosciences Multidisciplinary 期刊论文 2009 ftchinacscnigpas 2019-08-14T12:44:21Z The Global boundary Stratotype Section and Point (GSSP) for the base of the Guzhangian Stage (Cambrian Series 3) is defined at the base of a limestone (calcisiltite) layer 121.3 in above the base of the Huagiao Formation in the Louyixi section along the Youshui River (Fengtan Reservoir), about 4 km northwest of Luoyixi (4 km southeast of Wangcun), in northwestern Hunan, China. The GSSP is exposed in a road cut at a position of 28 degrees 43.20' N and 109 degrees 57.88' E. The GSSP level contains the lowest occurrence of the cosmopolitan agnostoid trilobite Lejopyge laevigata (base of the L. laevigata Zone). Secondary global markers near the base of the stage include the appearance of either L. calva or L. armata just below the base of the stage, the appearance of conodonts associated with the base of the Laiwugnathus laiwuensis Zone, and the transgressive phase of a small eustatic event. Faunal turnovers close to the base of the Guzhangian Stage are recognized as near the base of the Boomerangian Stage in Australia, the base of the Aldanaspis Zone (polymerid trilobites) in Siberia, and the base of the Paradoxides forchhammeri Zone in western Avalonia. The horizon corresponding to the first appearance of L. laevigata is near the peak of a rather long negative delta C-13 excursion of up to 0.58 parts per thousand. Report Antarc* Antarctica Siberia Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
SOUTH CHINA SERIES MIDDLE EVOLUTION REVISION SYSTEM TIME SUBDIVISION ANTARCTICA TRILOBITES Geology Geosciences Multidisciplinary |
spellingShingle |
SOUTH CHINA SERIES MIDDLE EVOLUTION REVISION SYSTEM TIME SUBDIVISION ANTARCTICA TRILOBITES Geology Geosciences Multidisciplinary Peng, Shanchi Babcock, Loren E. Zuo, Jingxun Lin, Huanling Zhu, Xuejian Yang, Xianfeng Robison, Richard A. Qi, Yuping Bagnoli, Gabriella Chen, Yong'an The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China |
topic_facet |
SOUTH CHINA SERIES MIDDLE EVOLUTION REVISION SYSTEM TIME SUBDIVISION ANTARCTICA TRILOBITES Geology Geosciences Multidisciplinary |
description |
The Global boundary Stratotype Section and Point (GSSP) for the base of the Guzhangian Stage (Cambrian Series 3) is defined at the base of a limestone (calcisiltite) layer 121.3 in above the base of the Huagiao Formation in the Louyixi section along the Youshui River (Fengtan Reservoir), about 4 km northwest of Luoyixi (4 km southeast of Wangcun), in northwestern Hunan, China. The GSSP is exposed in a road cut at a position of 28 degrees 43.20' N and 109 degrees 57.88' E. The GSSP level contains the lowest occurrence of the cosmopolitan agnostoid trilobite Lejopyge laevigata (base of the L. laevigata Zone). Secondary global markers near the base of the stage include the appearance of either L. calva or L. armata just below the base of the stage, the appearance of conodonts associated with the base of the Laiwugnathus laiwuensis Zone, and the transgressive phase of a small eustatic event. Faunal turnovers close to the base of the Guzhangian Stage are recognized as near the base of the Boomerangian Stage in Australia, the base of the Aldanaspis Zone (polymerid trilobites) in Siberia, and the base of the Paradoxides forchhammeri Zone in western Avalonia. The horizon corresponding to the first appearance of L. laevigata is near the peak of a rather long negative delta C-13 excursion of up to 0.58 parts per thousand. |
format |
Report |
author |
Peng, Shanchi Babcock, Loren E. Zuo, Jingxun Lin, Huanling Zhu, Xuejian Yang, Xianfeng Robison, Richard A. Qi, Yuping Bagnoli, Gabriella Chen, Yong'an |
author_facet |
Peng, Shanchi Babcock, Loren E. Zuo, Jingxun Lin, Huanling Zhu, Xuejian Yang, Xianfeng Robison, Richard A. Qi, Yuping Bagnoli, Gabriella Chen, Yong'an |
author_sort |
Peng, Shanchi |
title |
The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China |
title_short |
The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China |
title_full |
The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China |
title_fullStr |
The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China |
title_full_unstemmed |
The Global Boundary Stratotype Section and Point (GSSP) of the Guzhangian Stage (Cambrian) in the Wuling Mountains, Northwestern Hunan, China |
title_sort |
global boundary stratotype section and point (gssp) of the guzhangian stage (cambrian) in the wuling mountains, northwestern hunan, china |
publisher |
GEOLOGICAL SOC INDIA |
publishDate |
2009 |
url |
http://ir.nigpas.ac.cn/handle/332004/19508 |
genre |
Antarc* Antarctica Siberia |
genre_facet |
Antarc* Antarctica Siberia |
op_relation |
EPISODES http://ir.nigpas.ac.cn/handle/332004/19508 |
_version_ |
1766275435876843520 |