Altered volcanic ash layers of the Late Cretaceous San Felipe Formation, Sierra Madre Oriental (Northeastern Mexico): UPb geochronology, provenance and tectonic setting
详细信息 查看全文
- 作者：Fernando Velasco-Tapiaa ; fernando.velascotp@uanl.edu.mx" class="auth_mail" title="E-mail the corresponding author ; Margarita Martí ; nez-Pacoa ; mtz_mago@hotmail.com" class="auth_mail" title="E-mail the corresponding author ; Alexander Iriondob ; iriondo@geociencias.unam.mx" class="auth_mail" title="E-mail the corresponding author ; Yam Zul Ernesto Ocampo-Dí ; azc ; yamzul.ocampo@uaslp.mx" class="auth_mail" title="E-mail the corresponding author ; Esther Marí ; a Cruz-Gá ; meza ; esther.cruzgm@uanl.edu.mx" class="auth_mail" title="E-mail the corresponding author ; André ; s Ramos-Ledezmaa ; andresramosledezma@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Jorge Alberto Andaverded ; jandaverde@uv.mx" class="auth_mail" title="E-mail the corresponding author ; Mikhail Ostrooumove ; ostroum@umich.mx" class="auth_mail" title="E-mail the corresponding author ; Dirk Masucha ; geologo.aleman@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Altered ash-beds ; Immobile element geochemistry ; Santonian-Campanian ; Cretaceous Western Interior Sea
- 刊名：Journal of South American Earth Sciences
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：70
- 期：Complete
- 页码：18-35
- 全文大小：7950 K
文摘
- •
Upper Cretaceous altered ash-beds from Northeastern Mexico have been studied.
- •
According to U
Pb dating in zircon, the deposit occurred between 84.6 and 73.7 Ma.- •
Geochemistry data indicate a rhyodacitic to rhyolitic composition.
- •
Ash-beds have an affinity to continental arc in transition to extension setting.
- •
The origin of the San Felipe ash beds is probably linked to Laramide Magmatic Arc.