有孔虫化石群からみた日本の古第三系
There have been many discussions concerning the Danian, whether it is Cretaceous or Paleogene. The problems are not discussed or documented in this paper, but the modern tendency is to place the Danian at the base of the Paleogene, because of the distinct faunal break-disappearance of Cretaceous Glo...
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東北大學
1962
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fttohokuunivir:oai:tohoku.repo.nii.ac.jp:00013024 2023-05-15T18:01:06+02:00 有孔虫化石群からみた日本の古第三系 Japanese Paleogene from the View-point of Foraminifera with Descriptions of Several New Species 浅野 清 1962-11-26 application/pdf 4116331 bytes http://hdl.handle.net/10097/33151 https://tohoku.repo.nii.ac.jp/?action=repository_uri&item_id=13024 https://tohoku.repo.nii.ac.jp/?action=repository_action_common_download&item_id=13024&item_no=1&attribute_id=18&file_no=1 ja jpn 東北大學 https://tohoku.repo.nii.ac.jp/?action=repository_uri&item_id=13024 http://hdl.handle.net/10097/33151 東北大學理學部地質學古生物學教室研究邦文報告, 57, 1-33(1962-11-26) 00824658 AN00171452 https://tohoku.repo.nii.ac.jp/?action=repository_action_common_download&item_id=13024&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper 紀要類(bulletin) 1962 fttohokuunivir 2022-11-20T21:58:18Z There have been many discussions concerning the Danian, whether it is Cretaceous or Paleogene. The problems are not discussed or documented in this paper, but the modern tendency is to place the Danian at the base of the Paleogene, because of the distinct faunal break-disappearance of Cretaceous Globotruncana and appearance of Tertiary Globigerina-at the base of the Danian. Such Danian planktonic foraminiferal assemblage was first found in the Cretaceous formation of Nemuro, Hokkaido. Asano reported on the occurrence of Globigerinoides sp. (cf. G. trilocauhnoides Plummer), Globigerina pseadobaalloides Plummer, Globigerina daubjergensis Bronnimann, Globigerina corn ressa Plummer associated with many benthonic Foraminifera from the Choboshi formation at Ochiishi, Nemuro which had been considered to he Upper Cretaceous from the megafossils contained in it. (Table 1) On the other hand, Yoshida who studied the Cretaceous Formainifera from Urahoro, Tokachi-gun stated that the foraminiferal assemblage from the so-called Cretaceous formation near the provincial boundary between Tokachi and Kushiro may be correlated with that of the Paleocene of Venezuela. More recently, Iwamoto reported on the occurrence of Globorotalia pseudonsenardii Belli, a typical Paleocene planktonic Foraminifera, from the Chippomanai formation, south of Akkeshi, which was also previously referred to Upper Cretaceous. Another type of Paleocene Globorotalia was found in the limestone of the Setogawa group, Shizuoka Prefecture by Saito. These evidences suggest that Paleocene (including Danian) deposits are distributed in Japan, although they are local at present, and it is desirable that detailed stratigraphical studies of those areas should be carried out. Well-defined Eocene and Oligocene formations are well developed in many coal-fields of Hokkaido, Kyushu and Honshu, but they are rather limited in occurrence, being of nonmarine or coal-bearing facies in most places. There is another type of Paleogene formations in the Outer Zone of Southwest ... Report Planktonic foraminifera Tohoku University Repository (TOUR) |
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Open Polar |
collection |
Tohoku University Repository (TOUR) |
op_collection_id |
fttohokuunivir |
language |
Japanese |
description |
There have been many discussions concerning the Danian, whether it is Cretaceous or Paleogene. The problems are not discussed or documented in this paper, but the modern tendency is to place the Danian at the base of the Paleogene, because of the distinct faunal break-disappearance of Cretaceous Globotruncana and appearance of Tertiary Globigerina-at the base of the Danian. Such Danian planktonic foraminiferal assemblage was first found in the Cretaceous formation of Nemuro, Hokkaido. Asano reported on the occurrence of Globigerinoides sp. (cf. G. trilocauhnoides Plummer), Globigerina pseadobaalloides Plummer, Globigerina daubjergensis Bronnimann, Globigerina corn ressa Plummer associated with many benthonic Foraminifera from the Choboshi formation at Ochiishi, Nemuro which had been considered to he Upper Cretaceous from the megafossils contained in it. (Table 1) On the other hand, Yoshida who studied the Cretaceous Formainifera from Urahoro, Tokachi-gun stated that the foraminiferal assemblage from the so-called Cretaceous formation near the provincial boundary between Tokachi and Kushiro may be correlated with that of the Paleocene of Venezuela. More recently, Iwamoto reported on the occurrence of Globorotalia pseudonsenardii Belli, a typical Paleocene planktonic Foraminifera, from the Chippomanai formation, south of Akkeshi, which was also previously referred to Upper Cretaceous. Another type of Paleocene Globorotalia was found in the limestone of the Setogawa group, Shizuoka Prefecture by Saito. These evidences suggest that Paleocene (including Danian) deposits are distributed in Japan, although they are local at present, and it is desirable that detailed stratigraphical studies of those areas should be carried out. Well-defined Eocene and Oligocene formations are well developed in many coal-fields of Hokkaido, Kyushu and Honshu, but they are rather limited in occurrence, being of nonmarine or coal-bearing facies in most places. There is another type of Paleogene formations in the Outer Zone of Southwest ... |
format |
Report |
author |
浅野 清 |
spellingShingle |
浅野 清 有孔虫化石群からみた日本の古第三系 |
author_facet |
浅野 清 |
author_sort |
浅野 清 |
title |
有孔虫化石群からみた日本の古第三系 |
title_short |
有孔虫化石群からみた日本の古第三系 |
title_full |
有孔虫化石群からみた日本の古第三系 |
title_fullStr |
有孔虫化石群からみた日本の古第三系 |
title_full_unstemmed |
有孔虫化石群からみた日本の古第三系 |
title_sort |
有孔虫化石群からみた日本の古第三系 |
publisher |
東北大學 |
publishDate |
1962 |
url |
http://hdl.handle.net/10097/33151 https://tohoku.repo.nii.ac.jp/?action=repository_uri&item_id=13024 https://tohoku.repo.nii.ac.jp/?action=repository_action_common_download&item_id=13024&item_no=1&attribute_id=18&file_no=1 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://tohoku.repo.nii.ac.jp/?action=repository_uri&item_id=13024 http://hdl.handle.net/10097/33151 東北大學理學部地質學古生物學教室研究邦文報告, 57, 1-33(1962-11-26) 00824658 AN00171452 https://tohoku.repo.nii.ac.jp/?action=repository_action_common_download&item_id=13024&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766170440293679104 |