Crustal evolution of the northern Brasília Belt basement, central Brazil: A Rhyacian orogeny coeval with a pre-Rodinia supercontinent assembly
详细信息 查看全文
- 作者：Isabela Moreno Cordeiro de Sousa ; isabelamcds@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Maria Emí ; lia Schutesky Della Giustina ; Claudinei Gouveia de Oliveira
- 关键词：Rhyacian magmatic arc ; Paleoproterozoic supercontinent ; Brasí ; lia Belt
- 刊名：Precambrian Research
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：273
- 期：Complete
- 页码：129-150
- 全文大小：6352 K
文摘
- •
We examine Paleoproterozoic rocks cropping out in the Neoproterozoic Brasília thrust and fold belt.
- •
Rocks were formed in a Rhyacian orogeny and represent the basement of the sediments of the belt.
- •
There are magmatic arc tonalites of 2.16–2.30 Ga and syn-collisional granites of 2.12–2.17 Ga in the basement.
- •
The terrane where these rocks crop out is part of the present-day São Francisco paleoplate.