Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China
The graptolite and conodont biostratigraphy of the latest Darriwilian, Sandbian and early and middle Katian succession on the Yangtze Platform is reassessed based on numerous new fossil collections and previously published data. At least at some localities, the lowermost Miaopo Formation is of pre-N...
Published in: | Earth and Environmental Science Transactions of the Royal Society of Edinburgh |
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Language: | English |
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CAMBRIDGE UNIV PRESS
2010
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Online Access: | http://ir.nigpas.ac.cn/handle/332004/19548 https://doi.org/10.1017/S1755691010009199 |
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/19548 2023-05-15T17:22:41+02:00 Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China Xu, Chen Bergstroem, Stig M. Zhang Yuandong Goldman, Dan Qing, Chen 2010 http://ir.nigpas.ac.cn/handle/332004/19548 https://doi.org/10.1017/S1755691010009199 英语 eng CAMBRIDGE UNIV PRESS EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH http://ir.nigpas.ac.cn/handle/332004/19548 doi:10.1017/S1755691010009199 biostratigraphy conodonts graptolites Yangtze Platform FORMATION MIDDLE ORDOVICIAN NORTH-CENTRAL NEWFOUNDLAND SOUTHERN SWEDEN EXCURSION GICE NEW-BRUNSWICK STRATIGRAPHY SUCCESSION SCANIA CLASSIFICATION Geology Paleontology Geosciences Multidisciplinary 期刊论文 2010 ftchinacscnigpas https://doi.org/10.1017/S1755691010009199 2019-08-14T12:44:21Z The graptolite and conodont biostratigraphy of the latest Darriwilian, Sandbian and early and middle Katian succession on the Yangtze Platform is reassessed based on numerous new fossil collections and previously published data. At least at some localities, the lowermost Miaopo Formation is of pre-Nemagraptus gracilis Zone age (uppermost Pygodus serra and lowermost P. anserinus conodont zones). The rest of this formation (except for the uppermost part, which lacks diagnostic graptolites) has a diverse graptolite fauna of the N. gracilis Zone. The uppermost part of the Miaopo Formation contains few biostratigraphically diagnostic graptolites but the occurrence of conodonts of the Baltoniodus alobatus Subzone of the Amorphognathus tvaerensis Zone suggests equivalence with part of the Climacograptus bicornis graptolite Zone. The conodont succession of the Datianba Formation is virtually identical with that of the Miaopo Formation, confirming that these units are coeval. The lowermost part of the overlying non-graptolitic Pagoda Formation represents the upper A. tvaerensis Zone, and its upper part represents the A. superbus Zone. The occurrence of Dicellograptus elegans in the overlying Chientsaokou Formation (equivalent to the Linhsiang Formation in Yangtze Gorges region) suggests equivalence with the Pleurograptus linearis Zone in Scotland, which is consistent with the relatively non-diagnostic conodont fauna in these Chinese units. The biostratigraphic data are in good agreement with the delta C-13 chemostratigraphy and permit the establishment of precise correlations with the Baltoscandic and North American successions. Report Newfoundland Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Earth and Environmental Science Transactions of the Royal Society of Edinburgh 101 2 111 134 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
biostratigraphy conodonts graptolites Yangtze Platform FORMATION MIDDLE ORDOVICIAN NORTH-CENTRAL NEWFOUNDLAND SOUTHERN SWEDEN EXCURSION GICE NEW-BRUNSWICK STRATIGRAPHY SUCCESSION SCANIA CLASSIFICATION Geology Paleontology Geosciences Multidisciplinary |
spellingShingle |
biostratigraphy conodonts graptolites Yangtze Platform FORMATION MIDDLE ORDOVICIAN NORTH-CENTRAL NEWFOUNDLAND SOUTHERN SWEDEN EXCURSION GICE NEW-BRUNSWICK STRATIGRAPHY SUCCESSION SCANIA CLASSIFICATION Geology Paleontology Geosciences Multidisciplinary Xu, Chen Bergstroem, Stig M. Zhang Yuandong Goldman, Dan Qing, Chen Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China |
topic_facet |
biostratigraphy conodonts graptolites Yangtze Platform FORMATION MIDDLE ORDOVICIAN NORTH-CENTRAL NEWFOUNDLAND SOUTHERN SWEDEN EXCURSION GICE NEW-BRUNSWICK STRATIGRAPHY SUCCESSION SCANIA CLASSIFICATION Geology Paleontology Geosciences Multidisciplinary |
description |
The graptolite and conodont biostratigraphy of the latest Darriwilian, Sandbian and early and middle Katian succession on the Yangtze Platform is reassessed based on numerous new fossil collections and previously published data. At least at some localities, the lowermost Miaopo Formation is of pre-Nemagraptus gracilis Zone age (uppermost Pygodus serra and lowermost P. anserinus conodont zones). The rest of this formation (except for the uppermost part, which lacks diagnostic graptolites) has a diverse graptolite fauna of the N. gracilis Zone. The uppermost part of the Miaopo Formation contains few biostratigraphically diagnostic graptolites but the occurrence of conodonts of the Baltoniodus alobatus Subzone of the Amorphognathus tvaerensis Zone suggests equivalence with part of the Climacograptus bicornis graptolite Zone. The conodont succession of the Datianba Formation is virtually identical with that of the Miaopo Formation, confirming that these units are coeval. The lowermost part of the overlying non-graptolitic Pagoda Formation represents the upper A. tvaerensis Zone, and its upper part represents the A. superbus Zone. The occurrence of Dicellograptus elegans in the overlying Chientsaokou Formation (equivalent to the Linhsiang Formation in Yangtze Gorges region) suggests equivalence with the Pleurograptus linearis Zone in Scotland, which is consistent with the relatively non-diagnostic conodont fauna in these Chinese units. The biostratigraphic data are in good agreement with the delta C-13 chemostratigraphy and permit the establishment of precise correlations with the Baltoscandic and North American successions. |
format |
Report |
author |
Xu, Chen Bergstroem, Stig M. Zhang Yuandong Goldman, Dan Qing, Chen |
author_facet |
Xu, Chen Bergstroem, Stig M. Zhang Yuandong Goldman, Dan Qing, Chen |
author_sort |
Xu, Chen |
title |
Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China |
title_short |
Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China |
title_full |
Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China |
title_fullStr |
Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China |
title_full_unstemmed |
Upper Ordovician (Sandbian-Katian) graptolite and conodont zonation in the Yangtze region, China |
title_sort |
upper ordovician (sandbian-katian) graptolite and conodont zonation in the yangtze region, china |
publisher |
CAMBRIDGE UNIV PRESS |
publishDate |
2010 |
url |
http://ir.nigpas.ac.cn/handle/332004/19548 https://doi.org/10.1017/S1755691010009199 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH http://ir.nigpas.ac.cn/handle/332004/19548 doi:10.1017/S1755691010009199 |
op_doi |
https://doi.org/10.1017/S1755691010009199 |
container_title |
Earth and Environmental Science Transactions of the Royal Society of Edinburgh |
container_volume |
101 |
container_issue |
2 |
container_start_page |
111 |
op_container_end_page |
134 |
_version_ |
1766109497932120064 |