U-Pb detrital zircon and 39Ar-40Ar muscovite ages from the eastern parts of the Karagwe-Ankole Belt: Tracking Paleoproterozoic basin formation and Mesoproterozoic crustal amalgamation along the western margin of the Tanzania Craton
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- 作者：C. Koegelenberga ; ckoegelenberg@sun.ac.za" class="auth_mail" title="E-mail the corresponding author ; A.F.M. Kistersa ; akisters@sun.ac.za" class="auth_mail" title="E-mail the corresponding author ; J.D. Kramersb ; 1 ; jkramers@uj.ac.za" class="auth_mail" title="E-mail the corresponding author ; D. Freic ; 2 ; dirkfrei@sun.ac.za" class="auth_mail" title="E-mail the corresponding author
- 关键词：Karagwe-Ankole belt ; Eastern Domain ; Kagera Supergroup ; Basin formation ; Deformation
- 刊名：Precambrian Research
- 出版年：2015
- 出版时间：October 2015
- 年：2015
- 卷：269
- 期：Complete
- 页码：147-161
- 全文大小：6693 K
文摘
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D2 mylonites from the base of the Kagera Supergroup yield 39Ar–40Ar muscovite ages of ca. 1326 ± 10 Ma.
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D2 indicates a fold-and-thrust event in Karagwe-Ankole belt during the mid-Mesoproterozoic.
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Sedimentation of the Kagera Supergroup is recorded from 1780 Ma, but before 1568 Ma.
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The Bukoba Group records reworking of the Muyaga Group and basement into an extensive foreland system.