Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina
The present chapter deals with provenance analysis of a carbonate-siliciclastic Ordovician sedimentary unit of the San Rafael block, named the Ponón Trehué Formation (Darriwilian to Sandbian). This is the only sequence which exhibits a direct contact with the Mesoproterozoic basement through an unco...
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I19-R120-10915-1574942023-09-11T20:08:15Z http://sedici.unlp.edu.ar/handle/10915/157494 Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina Abre, Paulina Cingolani, Carlos Alberto Uriz, Norberto Javier Siccardi, Arón 2017 2023-09-11T18:20:21Z Cingolani, Carlos Alberto Springer en Geología Geochemistry Isotope geochemistry Detrital zircon dating Provenance Ponón Trehué Formation Cuyania terrane The present chapter deals with provenance analysis of a carbonate-siliciclastic Ordovician sedimentary unit of the San Rafael block, named the Ponón Trehué Formation (Darriwilian to Sandbian). This is the only sequence which exhibits a direct contact with the Mesoproterozoic basement through an unconformity, not only within the San Rafael block, but rather for the entire Cuyania terrane. When combining different provenance proxies, such as petrography, whole-rock geochemistry, Sm–Nd data, Pb–Pb analyses, and detrital zircon dating, it can be deduced that the source rocks are characterized by: (i) an upper continental crust composition, (ii) a subordinated influence of a more depleted composition, (iii) a dominantly Mesoproterozoic age, (iv) sedimentary recycling did not conspicuously affected the detrital source, and (v) weathering was relatively strong. All these characteristics point to the Mesoproterozoic Cerro La Ventana Formation basement as a main source of detritus to a restricted basin infilled during the Ordovician. Centro de Investigaciones Geológicas Libro Capitulo de libro http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 59-74 |
institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Geología Geochemistry Isotope geochemistry Detrital zircon dating Provenance Ponón Trehué Formation Cuyania terrane |
spellingShingle |
Geología Geochemistry Isotope geochemistry Detrital zircon dating Provenance Ponón Trehué Formation Cuyania terrane Abre, Paulina Cingolani, Carlos Alberto Uriz, Norberto Javier Siccardi, Arón Cingolani, Carlos Alberto Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina |
topic_facet |
Geología Geochemistry Isotope geochemistry Detrital zircon dating Provenance Ponón Trehué Formation Cuyania terrane |
description |
The present chapter deals with provenance analysis of a carbonate-siliciclastic Ordovician sedimentary unit of the San Rafael block, named the Ponón Trehué Formation (Darriwilian to Sandbian). This is the only sequence which exhibits a direct contact with the Mesoproterozoic basement through an unconformity, not only within the San Rafael block, but rather for the entire Cuyania terrane. When combining different provenance proxies, such as petrography, whole-rock geochemistry, Sm–Nd data, Pb–Pb analyses, and detrital zircon dating, it can be deduced that the source rocks are characterized by: (i) an upper continental crust composition, (ii) a subordinated influence of a more depleted composition, (iii) a dominantly Mesoproterozoic age, (iv) sedimentary recycling did not conspicuously affected the detrital source, and (v) weathering was relatively strong. All these characteristics point to the Mesoproterozoic Cerro La Ventana Formation basement as a main source of detritus to a restricted basin infilled during the Ordovician. |
format |
Libro Capitulo de libro |
author |
Abre, Paulina Cingolani, Carlos Alberto Uriz, Norberto Javier Siccardi, Arón Cingolani, Carlos Alberto |
author_facet |
Abre, Paulina Cingolani, Carlos Alberto Uriz, Norberto Javier Siccardi, Arón Cingolani, Carlos Alberto |
author_sort |
Abre, Paulina |
title |
Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina |
title_short |
Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina |
title_full |
Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina |
title_fullStr |
Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina |
title_full_unstemmed |
Sedimentary Provenance Analysis of the Ordovician Ponón Trehué Formation, San Rafael Block, Mendoza-Argentina |
title_sort |
sedimentary provenance analysis of the ordovician ponón trehué formation, san rafael block, mendoza-argentina |
publisher |
Springer |
publishDate |
2017 |
url |
http://sedici.unlp.edu.ar/handle/10915/157494 |
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