Age and evolution of the deep continental root beneath the central Rae craton, northern Canada
详细信息 查看全文
- 作者：Jingao Liua ; jingao@ualberta.ca" class="auth_mail" title="E-mail the corresponding author ; Amy J.V. Richesa ; 1 ; D. Graham Pearsona ; Yan Luoa ; Bruce Kienlenb ; Bruce A. Kjarsgaardc ; Thomas Stachela ; John P. Armstrongd
- 关键词：Peridotite ; Osmium isotopes ; Platinum group elements (PGE) ; Mantle metasomatism ; Tectonics ; Rae craton
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：272
- 期：Complete
- 页码：168-184
- 全文大小：3088 K
文摘
- •
Three groups of ages are found in the peridotites from the central Rae craton.
- •
New lithospheric mantle was generated in both the Archean and Paleoproterozoic.
- •
The formation of Paleoproterozoic mantle was related to the Kivalliq-Nueltin event.
- •
Geothermal data indicate a thick (∼200 km) lithospheric root beneath the Rae.
- •
The layered lithosphere is consistent with seismic discontinuities.