Lower crust exhumation during Paleoproterozoic (Eburnean) orogeny, NW Ghana, West African Craton: Interplay of coeval contractional deformation and extensional gravitational collapse
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- 作者：Sylvain Blocka ; sylvain.block@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Mark Jessellb ; Laurent Aillè ; resc ; Lenka Baratouxa ; e ; Olivier Bruguierd ; Armin Zehf ; Delphine Boschd ; Renaud Cabyd ; Emmanuel Mensahg
- 关键词：West African craton ; Eburnean orogeny ; Paleoproterozoic ; Anatectic migmatite dome ; Collision ; Archean&ndash ; Proterozoic transition
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：274
- 期：Complete
- 页码：82-109
- 全文大小：15990 K
文摘
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New lithological and tectono-metamorphic maps of northern Ghana.
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Two major contractional phases separated by an episode of extension.
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Gravitational collapse of an over-thickened orogen and anatectic dome.
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Monocyclic Eburnean orogenic evolution during ca. 30 Ma.
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Collision between two distinct continental blocks within the West African Craton.