作者
Elisa Beilinson, Germán Mariano Gasparini, Rodrigo Leandro Tomassini, Marcelo Arístides Zárate, Cecilia Marcela Deschamps, RW Barendregt, J Rabassa
发表日期
2017/7/1
期刊
Journal of South American Earth Sciences
卷号
76
页码范围
362-374
出版商
Pergamon
简介
The Quequén Salado river basin has been the focus of several contributions since the first decades of the XX century, namely dealing with the general geological features of the deposits and with the vertebrate remains. In this paper, the Neogene geological history documented by the Quequén Salado river exposures is reconstructed by means of stratigraphic, sedimentological and paleomagnetic studies along with the paleontological analysis of vertebrate remains. The study area is a crucial setting not only to better understand the evolution of the southern Pampas basin during the late Miocene-early Pliocene interval, but also to test the validity of the biochronologic and biostratigraphic schemes, especially the “Irenense”. A geological model for the Quequén Salado river valley is proposed: a case of downcutting and headward erosion that contributes with a coherent interpretation to explain the spatial distribution …
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E Beilinson, GM Gasparini, RL Tomassini, MA Zárate… - Journal of South American Earth Sciences, 2017