Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island
In comparison with the well-known Tethyan domain, Upper Triassic limestones from the Panthalassa Ocean are still poorly known. However, these carbonates represent a unique opportunity to have a more accurate view of the Panthalassa Ocean during the Triassic. Their study will allow comparison and cor...
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ftunivgeneve:oai:unige.ch:aou:unige:93616 2023-10-01T03:59:13+02:00 Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island Peyrotty, Giovan Peybernes, Camille Ueda, Hayato Martini, Rossana 2017 https://archive-ouverte.unige.ch/unige:93616 eng eng https://archive-ouverte.unige.ch/unige:93616 unige:93616 info:eu-repo/semantics/openAccess EGU 2017, (2017) info:eu-repo/classification/ddc/550 Triassic Limestone Japan Hokkaido Panthalassa Sedimentology Diagenesis info:eu-repo/semantics/bookPart Text Chapitre d'actes info:eu-repo/semantics/publishedVersion 2017 ftunivgeneve 2023-09-07T07:37:47Z In comparison with the well-known Tethyan domain, Upper Triassic limestones from the Panthalassa Ocean are still poorly known. However, these carbonates represent a unique opportunity to have a more accurate view of the Panthalassa Ocean during the Triassic. Their study will allow comparison and correlation of biotic assemblages, biostratigraphy, diagenesis, and depositional settings of different Triassic localities from Tethyan and Panthalassic domains. Moreover, investigation of these carbonates will provide data for taxonomic revisions and helps to better constrain palaeobiogeographic models. One of the best targets for the study of these carbonates is Hokkaido Island (north of Japan). Indeed, this island is a part of the South-North continuity of Jurassic to Paleogene accretionary complexes, going from the Philippines to Sakhalin Island (Far East Russia). Jurassic and Cretaceous accretionary complexes of Japan and Philippines contain Triassic mid-oceanic seamount carbonates from the western Panthalassa Ocean (Onoue & Sano, 2007; Kiessling & Flügel, 2000). They have been accreted either as isolated limestone slabs or as clasts and boulders, and are associated with mudstones, cherts, breccias and basaltic rocks. Two major tectonic units forming Hokkaido Island and containing Triassic limestones have been accurately explored and extensively sampled: the Oshima Belt (west Hokkaido) a Jurassic accretionary complex, and the Cretaceous Sorachi-Yezo Belt (central Hokkaido). The Sorachi-Yezo Belt is composed of Cretaceous accretionary complexes in the east and of Cretaceous clastic basin sediments deposited on a Jurassic basement in the west (Ueda, 2016), both containing Triassic limestones. The origin of this belt is still matter of debate especially because of its western part which is not in continuity with any other accretionary complex known in the other islands of Japan and also due to the lack of data in this region. One of the main goals of this study is to investigate and characterise Triassic ... Book Part Sakhalin Université de Genève: Archive ouverte UNIGE |
institution |
Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/550 Triassic Limestone Japan Hokkaido Panthalassa Sedimentology Diagenesis |
spellingShingle |
info:eu-repo/classification/ddc/550 Triassic Limestone Japan Hokkaido Panthalassa Sedimentology Diagenesis Peyrotty, Giovan Peybernes, Camille Ueda, Hayato Martini, Rossana Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island |
topic_facet |
info:eu-repo/classification/ddc/550 Triassic Limestone Japan Hokkaido Panthalassa Sedimentology Diagenesis |
description |
In comparison with the well-known Tethyan domain, Upper Triassic limestones from the Panthalassa Ocean are still poorly known. However, these carbonates represent a unique opportunity to have a more accurate view of the Panthalassa Ocean during the Triassic. Their study will allow comparison and correlation of biotic assemblages, biostratigraphy, diagenesis, and depositional settings of different Triassic localities from Tethyan and Panthalassic domains. Moreover, investigation of these carbonates will provide data for taxonomic revisions and helps to better constrain palaeobiogeographic models. One of the best targets for the study of these carbonates is Hokkaido Island (north of Japan). Indeed, this island is a part of the South-North continuity of Jurassic to Paleogene accretionary complexes, going from the Philippines to Sakhalin Island (Far East Russia). Jurassic and Cretaceous accretionary complexes of Japan and Philippines contain Triassic mid-oceanic seamount carbonates from the western Panthalassa Ocean (Onoue & Sano, 2007; Kiessling & Flügel, 2000). They have been accreted either as isolated limestone slabs or as clasts and boulders, and are associated with mudstones, cherts, breccias and basaltic rocks. Two major tectonic units forming Hokkaido Island and containing Triassic limestones have been accurately explored and extensively sampled: the Oshima Belt (west Hokkaido) a Jurassic accretionary complex, and the Cretaceous Sorachi-Yezo Belt (central Hokkaido). The Sorachi-Yezo Belt is composed of Cretaceous accretionary complexes in the east and of Cretaceous clastic basin sediments deposited on a Jurassic basement in the west (Ueda, 2016), both containing Triassic limestones. The origin of this belt is still matter of debate especially because of its western part which is not in continuity with any other accretionary complex known in the other islands of Japan and also due to the lack of data in this region. One of the main goals of this study is to investigate and characterise Triassic ... |
format |
Book Part |
author |
Peyrotty, Giovan Peybernes, Camille Ueda, Hayato Martini, Rossana |
author_facet |
Peyrotty, Giovan Peybernes, Camille Ueda, Hayato Martini, Rossana |
author_sort |
Peyrotty, Giovan |
title |
Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island |
title_short |
Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island |
title_full |
Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island |
title_fullStr |
Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island |
title_full_unstemmed |
Upper Triassic limestones from the northern part of Japan: new insights on the Panthalassa Ocean and Hokkaido Island |
title_sort |
upper triassic limestones from the northern part of japan: new insights on the panthalassa ocean and hokkaido island |
publishDate |
2017 |
url |
https://archive-ouverte.unige.ch/unige:93616 |
genre |
Sakhalin |
genre_facet |
Sakhalin |
op_source |
EGU 2017, (2017) |
op_relation |
https://archive-ouverte.unige.ch/unige:93616 unige:93616 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1778532877927972864 |