Rapid sea-level change in the Late Guadalupian (Permian) on the Tethyan side of South China: litho- and biostratigraphy of the Chaotian section in Sichuan
スポンサーリンク
概要
- 論文の詳細を見る
The Capitanian (Late Guadalupian) Maokou Formation at Chaotian in northern Sichuan, South China, is composed mainly of shallow marine shelf carbonates deposited on the Tethyan side of South China. By detailed field mapping and scientific drilling, we newly found out unique fossil assemblages and a sharp lithologic change in the upper part of the Maokou Formation. The main part of the Maokou Formation (over 130 m thick) is composed of algal packstone with Wordian-Capitanian large-tested fusulines, rugose corals and other sessile benthos, whereas the Uppermost Member (13 m thick) is composed of black limy mudstone/chert with Capitanian offshore biota (ammonoids, radiolarians, and conodonts). The topmost Capitanian conodont zones are missing; however, the Maokou Formation is disconformably overlain by 260±4 Ma volcanic ash (Wangpo bed) and the Early Lopingian Wujiaping Formation with plant-bearing coaly mudstone and shallow marine carbonates (packstone). The newly identified facies change indicates that northern Sichuan has experienced rapid sea-level changes in the late Guadalupian, i.e., first a transgression in the mid-Capitanian and then a regression across the Guadalupian-Lopingian boundary. As the end-Guadalupian is characterized by a global regression, such a volatile sea-level fluctuation, in particular the sea-level rise, is unique to the Tethyan side of South China. The newly recognized relatively deep-water late Guadalupian sequence adds new paleo-environmental information and further provides a paleotectonic interpretation of the low-latitude eastern Tethyan margin immediately before the end-Guadalupian mass extinction.(Communicated by Ikuo KUSHIRO, M.J.A.)
- 日本学士院の論文
著者
-
Yao Jianxin
Geological Institute, Chinese Academy of Geological Science
-
SAKAI Harutaka
Department of Earth Science, Kyushu University
-
Isozaki Yukio
Department of Earth Science and Astronomy, The University of Tokyo
-
Yao Jianxin
Geological Institute Chinese Academy Of Geological Science
-
Yao Jianxin
Institute Of Geology Chinese Academy Of Geological Sciences
-
Isozaki Yukio
Department Of Earth And Planetary Sciences Tokyo Institute Of Technology
-
JI Zhangshen
Geological Institute, Chinese Academy of Geological Sciences Beijing
-
SAITOH Masafumi
Department of Earth Science and Astronomy, The University of Tokyo
-
KOBAYASHI Noritada
Department of Earth Science and Astronomy, The University of Tokyo
-
YAO Jianxin
Geological Institute, Chinese Academy of Geological Sciences Beijing
-
SAKAI Harutaka
Department of Geology and Mineralogy, Kyoto University
関連論文
- Permian radiolarians from the Gufeng Formation of the Tongling area, Anhui Province, China
- ^Ar-^Ar AGES AND PALEOMAGNETIC DATA FOR METAMORPHIC AND IGNEOUS ROCKS FROM MAHANADI AND GODAVARI GRABENS, EAST INDIA
- GEOROGIC AGE OF THE UNCONFORMITY BETWEEN THE SASEBO AND THE NOJIMA GRPUPS,NORTHWEST KYUSHU AND ITS TECTONIC SIGNIFICANCES
- Guadalupian (Middle Permian) giant bivalve Alatoconchidae from a mid-Panthalassan paleo-atoll complex in Kyushu, Japan: A unique community associated with Tethyan fusulines and corals
- "Late Permian radiolarians and spnge spicules from the Tongtianyan section, Liuzhou, Guangxi, China"
- Overview of a special issue on "geotectonic evolution of the Japanese Islands under new paradigms of the next generation (part 1-3)" (特集号 日本列島形成史と次世代パラダイム(Part 2))
- K-Ar ages of aegirine-augite from the Paleozoic alkaline plutonic complex in southwest China
- GEOLOGIC AGES OF THE TAISHU GROUP AND THE KATSUMOTO FORMATION IN THE TSUSHIMA AND IKI ISLANDS,OFF NORTHWEST KYUSHU ON THE BASIS OF PLANKTONIC FORAMINIFERS
- Rapid sea-level change in the Late Guadalupian (Permian) on the Tethyan side of South China: litho- and biostratigraphy of the Chaotian section in Sichuan
- Stratigraphy of the Middle-Upper Permian and Lowermost Triassic at Chaotian, Sichuan, China : Record of Late Permian double mass extinction event
- "Upper Permian biostratigraphic correlation between conodont and radiolarian zones in the Tamba-Mino Terrane, southwest Japan"
- Geology of the summit limestone of Mount Qomolangma (Everest) and cooling history of the Yellow Band under the Qomolangma detachment
- A discovery of deformed oolite from metemorphic rocks of the Main Central Thrust zone in Western Nepal (特集:ヒマラヤ山脈とインド洋に記録された環境変動)
- Paleogeographic maps of the Japanese Islands : Plate tectonic synthesis from 750Ma to the present
- Middle-Upper Permian (Maokouan-Wuchiapingian) boundary in mid-oceanic paleo-atoll limestone of Kamura and Akasaka, Japan
- Mass extinction events in the Phanerozoic(Coevolution of Earth and Life, International Symposium on Origins of Life and Astrobiology)
- 1-2) Accretionary Growth of Continental Margin Between the Initial Rifting and Final Collision : an Aspect of Miyashiro-type Orogeny in the Wilson Cycle
- P-298 Stratigraphy and depositional environments of the basin-fill sediments in the southern part of the Kathmandu Valley, Central Nepal
- Overview of a special issue on "geotectonic evolution of the Japanese Islands under new paradigms of the next generation (part 1-3)" (特集号 日本列島形成史と次世代パラダイム(Part 2))
- Contrasting two types of orogen in Permo-Triassic Japan : Accretionary versus collisional
- Lower Cretaceous fresh-water stromatolites from northern Kyushu, Japan
- Jurassic accretion tectonics of Japan
- Anatomy and genesis of a subduction-related orogen : A new view of geotectonic subdivision and evolution of the Japanese Islands
- Call for Papers The 100s: Significant Exposures of the World