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

P(論文) 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-u...

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Bibliographic Details
Main Authors: Takigami, Yutaka, Yoshida, Masaru, Funaki, Minoru
Language:English
Published: National Institute of Polar Research 1999
Subjects:
^<40>Ar-^<39>Ar age
Sri Lanka
Gondwana
Polar geoscience
Online Access:https://nipr.repo.nii.ac.jp/record/3050/files/KJ00000044167.pdf
https://doi.org/10.15094/00003050
https://nipr.repo.nii.ac.jp/records/3050
Description
Summary:P(論文) 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. departmental bulletin paper

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