40Ar-39Ar ages of dolerite dykes from Sri Lanka

Two ^<40>Ar-^<39>Ar ages were obtained for dolerites from Sri Lanka which had been dated by the K-Ar method as 143-152 Ma. ^<40>Ar-^<39>Ar ages, which are more reliable than the K-Ar ages, are 160-170 Ma. These ages are important for constraining the scenario of break-up of G...

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Bibliographic Details
Main Authors: Yutaka Takigami, Masaru Yoshida, Minoru Funaki
Format: Report
Language:English
Published: Kanto Gakuen University 1999
Subjects:
^<40>Ar-^<39>Ar age
Sri Lanka
Gondwana
Polar geoscience
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3050
http://id.nii.ac.jp/1291/00003050/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3050&item_no=1&attribute_id=18&file_no=1
Description
Summary:Two ^<40>Ar-^<39>Ar ages were obtained for dolerites from Sri Lanka which had been dated by the K-Ar method as 143-152 Ma. ^<40>Ar-^<39>Ar ages, which are more reliable than the K-Ar ages, are 160-170 Ma. These ages are important for constraining the scenario of break-up of Gondwana in the early Jurassic period.

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