Multi-stage kimberlite evolution tracked in zoned olivine from the Benfontein sill, South Africa
详细信息 查看全文
- 作者：Geoffrey H. Howartha ; ghhowarth@gmail.com" class="auth_mail" title="E-mail the corresponding author ; geoffrey.howarth@uct.ac.za" class="auth_mail" title="E-mail the corresponding author ; Lawrence A. Taylorb
- 关键词：Olivine ; Trace elements ; Metasomatism ; Kimberlite ; Benfontein ; Kaapvaal
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 October 2016
- 年：2016
- 卷：262
- 期：Complete
- 页码：384-397
- 全文大小：3327 K
文摘
- •
Ultra-fresh, complexly zoned olivines from the Benfontein kimberlite.
- •
Two distinct xenocrystic core populations from the base of the SCLM.
- •
Type 1 cores represent metasomatic alteration by early kimberlite melts.
- •
Multiple growth stages from ultramafic to mafic kimberlite compositions.
- •
Late-stage evolution to carbonatitic compositions in the crust.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |