2024-03-29T00:19:55Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00011860
2022-12-14T04:00:45Z
1169:1170
Modal compositions of representative sandstones from the Japanese Islands and their tectonic implications
日本列島の代表的砂岩のモード組成と造構場
公文, 富士夫
君波, 和雄
足立, 守
別所, 孝範
川端, 清司
楠, 利夫
西村, 年晴
岡田, 博有
大上, 和良
鈴木, 茂之
寺岡, 易司
Sandstone
modal analysis
provenance
magmatic arc representative sandstone
tectonic setting
Japanese Islands
We have selected seven specimens of Jurassic to Paleogene sandstones from the Japanese Islands, which represent different sedimentary basins and different tectonic settings. Firstly, some methodological problems concerning modal composition analysis have been checked by analysing the same specimens by nine of the above authors. As a result, the data show that the compositional variations of sandstones are quite high. Thus, we have to be careful when comparing the modal compositional data of different workers.It is also concluded that, in order to evaluate the provenance factor controlling the sandstone composition, the Gazzi-Dickinson point-counting method is better than the traditional one, although the latter is still useful for the description of sandstone. Secondly, we have examined the relationship between the modal composition of sandstone and its tectonic setting. The following five tectonic settings for magmatic arc provenance have been successfully discriminated: primitive volcanic island arc, evolved and mature magmatic are, dissected magmatic are, deeply dissected magmatic are, and renewed magmatic arc.
Article
地質学論集. 38:385-401 (1992)
journal article
日本地質学会
1992-03-20
application/pdf
地質学論集
38
385
401
0385-8545
AN00141779
https://soar-ir.repo.nii.ac.jp/record/11860/files/chishitsuron_38-2.pdf
eng
http://ci.nii.ac.jp/naid/110003025402/
日本地質学
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