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Origin of allochthonous limestone bodies of the miocene Megami formation, Kakegawa district, Shizuoka prefecture. Shizuokaken Kakegawa chiiki no chushinto megamiso ni fukumareru ichisei sekkaigan gantai no kigen

Journal Article:

Abstract

The Tertiary limestone bodies represented by Megami Hill and Ogami Hill are distributed in the Kakegawa district in the central portion of Shizuoka Prefecture, these limestone bodies are those originated from coral reefs and are contained in the Megami formation composed of sandstone, mudstone and tuff. However, concerning the limestone bodies of the Megami formation, there are, inter alia, the opinion that they are coral reef sediments on the spot and the opinion that they are foreign rocks, but neither has any firm concrete supporting evidence. In this paper, the sedimentation ages and the sedimentary locations of limestone and sandstone {center dot} mudstone composing the Megami formation were classified and the process, through which limestone was transformed up to its state now observed, was studied. The above study was done by a detailed survey of local rock facies, comparison of age of each rock facies through detection of reference fossils and other measures. A part of the conclusion is shown below: The limestone bodies of the Megami formation is discontinuous with the surrounding sandstone {center dot} mudstone and their strike dip is not harmonious. These limestone bodies are allochthonous rock blocks which collapsed after their sedimentation and mixed with the  More>>
Authors:
Nakamori, T; Iryu, Y; Mori, K; [1]  Sasazawa, K [2] 
  1. Tohoku Univ., Sendai (Japan). Faculty of Science
  2. The Yomiuri Shimbun, Sendai (Japan). Tohoku General Bureau
Publication Date:
Dec 15, 1991
Product Type:
Journal Article
Reference Number:
NEDO-92-910453; EDB-92-111589
Resource Relation:
Journal Name: Chishitsugaku Zasshi (Journal of the Geological Society of Japan); (Japan); Journal Volume: 97:12
Subject:
58 GEOSCIENCES; GEOLOGIC FORMATIONS; JAPAN; LIMESTONE; DISTRIBUTION; SEDIMENTARY ROCKS; ALGAE; CORALS; GEOLOGIC DEPOSITS; MIOCENE EPOCH; REEFS; ANIMALS; ASIA; CARBONATE ROCKS; CENOZOIC ERA; CNIDARIA; COELENTERATA; DEVELOPED COUNTRIES; GEOLOGIC AGES; GEOLOGIC STRUCTURES; INVERTEBRATES; PLANTS; ROCKS; TERTIARY PERIOD; 580000* - Geosciences
OSTI ID:
5201485
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0016-7630; CODEN: CHTZA
Submitting Site:
NEDO
Size:
Pages: 987-1000
Announcement Date:
Aug 01, 1992

Journal Article:

Citation Formats

Nakamori, T, Iryu, Y, Mori, K, and Sasazawa, K. Origin of allochthonous limestone bodies of the miocene Megami formation, Kakegawa district, Shizuoka prefecture. Shizuokaken Kakegawa chiiki no chushinto megamiso ni fukumareru ichisei sekkaigan gantai no kigen. Japan: N. p., 1991. Web.
Nakamori, T, Iryu, Y, Mori, K, & Sasazawa, K. Origin of allochthonous limestone bodies of the miocene Megami formation, Kakegawa district, Shizuoka prefecture. Shizuokaken Kakegawa chiiki no chushinto megamiso ni fukumareru ichisei sekkaigan gantai no kigen. Japan.
Nakamori, T, Iryu, Y, Mori, K, and Sasazawa, K. 1991. "Origin of allochthonous limestone bodies of the miocene Megami formation, Kakegawa district, Shizuoka prefecture. Shizuokaken Kakegawa chiiki no chushinto megamiso ni fukumareru ichisei sekkaigan gantai no kigen." Japan.
@misc{etde_5201485,
title = {Origin of allochthonous limestone bodies of the miocene Megami formation, Kakegawa district, Shizuoka prefecture. Shizuokaken Kakegawa chiiki no chushinto megamiso ni fukumareru ichisei sekkaigan gantai no kigen}
author = {Nakamori, T, Iryu, Y, Mori, K, and Sasazawa, K}
abstractNote = {The Tertiary limestone bodies represented by Megami Hill and Ogami Hill are distributed in the Kakegawa district in the central portion of Shizuoka Prefecture, these limestone bodies are those originated from coral reefs and are contained in the Megami formation composed of sandstone, mudstone and tuff. However, concerning the limestone bodies of the Megami formation, there are, inter alia, the opinion that they are coral reef sediments on the spot and the opinion that they are foreign rocks, but neither has any firm concrete supporting evidence. In this paper, the sedimentation ages and the sedimentary locations of limestone and sandstone {center dot} mudstone composing the Megami formation were classified and the process, through which limestone was transformed up to its state now observed, was studied. The above study was done by a detailed survey of local rock facies, comparison of age of each rock facies through detection of reference fossils and other measures. A part of the conclusion is shown below: The limestone bodies of the Megami formation is discontinuous with the surrounding sandstone {center dot} mudstone and their strike dip is not harmonious. These limestone bodies are allochthonous rock blocks which collapsed after their sedimentation and mixed with the deep sea sediments (sandstone and mudstone). 37 refs., 4 figs., 4 tabs.}
journal = {Chishitsugaku Zasshi (Journal of the Geological Society of Japan); (Japan)}
volume = {97:12}
journal type = {AC}
place = {Japan}
year = {1991}
month = {Dec}
}