REE and HFSE mineralization in peralkaline granites of the Ambohimirahavavy alkaline complex, Ampasindava peninsula, Madagascar
详细信息 查看全文
- 作者：Guillaume Estradea ; Stefano Salvib ; stefano.salvi@get.obs-mip.fr" class="auth_mail ; stefano.salvi@free.fr" class="auth_mail ; Didier Bé ; ziata ; Soatsitohaina Rakotovaoc ; Raymond Rakotondrazafyd
- 关键词：Peralkaline A-type granite ; Alkaline complex ; REE and HFSE mineralization ; Agpaitic ; Ampasindava peninsula ; Madagascar
- 刊名：Journal of African Earth Sciences
- 出版年：June 2014
- 年：2014
- 卷：94
- 期：Complete
- 页码：141-155
- 全文大小：7817 K
文摘
- •
Rare metals are hosted in granitic dykes emplaced in the rims of the complex.
- •
Granites are ferroan and have a peralkaline affinity.
- •
Mineralization is agpaitic and miaskitic magmatic, and hydrothermal.
- •
The hydrothermal mineralization consists of pseudomorphs after primary minerals.
- •
These granites represent one of very few known occurrence of eudialyte in granite.