^<40>Ar-^<39>Ar Dating of Terrestrial and Exterrestrial Materials : Basalts from the Japan Sea Floor, Deccan Plateau and Meteorites from Antarctica

Through a series of ^<40>Ar-^<39>Ar dating for terrestrial and exterrestrial samples, the results for basalts from the Japan Sea floor, Deccan Plateau and for meteorites from Antarctica give significant information concerning their formation histories. ^<40>Ar-^<39>Ar ages of...

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Bibliographic Details
Main Authors: Kaneoka Ichiro, Takigami Yutaka
Format: Report
Language:English
Published: Tohoku University 1994
Subjects:
^<40>Ar-^<39>Ar age
Japan Sea
Deccan Plateau
Meteorite
Antarctica
Antarc*
Online Access:http://hdl.handle.net/10097/28522
https://tohoku.repo.nii.ac.jp/?action=repository_uri&item_id=47045
https://tohoku.repo.nii.ac.jp/?action=repository_action_common_download&item_id=47045&item_no=1&attribute_id=18&file_no=1
Description
Summary:Through a series of ^<40>Ar-^<39>Ar dating for terrestrial and exterrestrial samples, the results for basalts from the Japan Sea floor, Deccan Plateau and for meteorites from Antarctica give significant information concerning their formation histories. ^<40>Ar-^<39>Ar ages of basalts from the Japan Sea floor give a constraint that the Japan Sea floor was formed at least 20 Ma. ^<40>Ar-^<39>Ar ages for dyke samples from the Deccan Plateau indicate a possibility for the occurrence of a little younger ages than that of the main plateau formations by a few million years. Meteorites collected from Antarctica show some variable ^<40>Ar-^<39>Ar ages reflecting their different thermal histories.

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