A small Archaean belt — diverse age ensemble: A U-Pb study of the Tipasjärvi greenstone belt, Karelia Province, central Fennoscandian Shield, Finland
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- 作者：Elina Lehtonena ; elina.lehtonen@helsinki.fi" class="auth_mail" title="E-mail the corresponding author ; Asko Kä ; pyahob ; asko.kapyaho@gtk.fi" class="auth_mail" title="E-mail the corresponding author
- 关键词：Absolute age ; Archaean ; Chronostratigraphy ; Karelia ; Greenstone belt ; U&ndash ; Pb
- 刊名：Lithos
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：246-247
- 期：Complete
- 页码：31-47
- 全文大小：2708 K
文摘
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The volcanism in the belt occurred ca. 2840–2800 Ma.
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Three distinct volcanic episodes are evident.
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Surrounding plutonic rocks are contemporaneous or younger than local volcanism.
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Deposition of the youngest sedimentary material occurred < 2.75 Ga.
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During the sedimentation period a source component > 3.0 Ga was present.
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