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Journal of Applied Sciences
  Year: 2010 | Volume: 10 | Issue: 22 | Page No.: 2754-2772
DOI: 10.3923/jas.2010.2754.2772
 
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Microscale Diagnostic Diagenetic Features in Neoproterozoic and Ordovician Units, Tandilia Basin, Argentina: A Review

Patricia E. Zalba, Martin Morosi, Marcelo Manassero and Maria S. Conconi

Abstract:
This review is the result of many years of research on stratigraphical correlation, sedimentology and mineralogy of one of the oldest sedimentary basins of Argentina that experimented numerous diagenetic changes along the evolution of its geological history: Tandilia. Previous and new data are presented and supported with photographs that illustrate different aspects of microscale diagnostic features of diagenesis recorded in weathered crystalline basement rocks and the overlying sedimentary succession represented by the Neoproterozoic Villa Mónica, Olavarría, Cerro Largo and Las Aguilas formations and the Late Ordovician Balcarce Formation. The study gathers optical and scanning electron microscopy data supported by X-ray diffraction analysis. The finding of Microbially Induced Sedimentary Structures (MISS) in siliciclastic and mixed facies helped to unveil hidden biosignatures, fundamental to understanding the origin of life on Earth.
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How to cite this article:

Patricia E. Zalba, Martin Morosi, Marcelo Manassero and Maria S. Conconi, 2010. Microscale Diagnostic Diagenetic Features in Neoproterozoic and Ordovician Units, Tandilia Basin, Argentina: A Review. Journal of Applied Sciences, 10: 2754-2772.

DOI: 10.3923/jas.2010.2754.2772

URL: https://scialert.net/abstract/?doi=jas.2010.2754.2772

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