Revised stratigraphic framework of the Cretaceous in the Bajo Grande area (Argentinean Patagonia) inferred from new U-Pb ages and palynology
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- 作者：Mauro G. Passaliaa ; e ; passaliam@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Magdalena Llorensb ; e ; Silvia N. Cé ; sarid ; e ; Carlos O. Limarinoc ; e ; Valeria S. Perez Loinazed ; e ; Ezequiel I. Verac ; d ; e
- 关键词：Cretaceous ; Aptian ; Palynology ; Geochronology ; Baqueró ; Group ; Chubut Group ; Patagonia
- 刊名：Cretaceous Research
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：60
- 期：Complete
- 页码：152-166
- 全文大小：8563 K
文摘
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Stratigraphy of Cretaceous deposits of Cerro Bayo (Patagonia, Argentina) was revised.
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Three major facies association were recognized and the paleoenvironmental evolution interpreted.
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Palynological record support correlation of lower deposits with Anfiteatro de Ticó Fm.
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A new U–Pb age of 116.85 Ma support correlation of upper deposits with Bajo Tigre Fm.
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Stratigraphic relationships among Baqueró, Chubut and Divisadero Group are discussed.