Pleistocene deformation of the Malargüe fold-thrust belt from structural modelling and geochronology of syntectonic sedimentation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F24%3A00585724" target="_blank" >RIV/67985831:_____/24:00585724 - isvavai.cz</a>
Result on the web
<a href="https://pubs.geoscienceworld.org/jgs/article-abstract/181/3/jgs2023-065/633492/Pleistocene-deformation-of-the-Malargue-fold?redirectedFrom=fulltext" target="_blank" >https://pubs.geoscienceworld.org/jgs/article-abstract/181/3/jgs2023-065/633492/Pleistocene-deformation-of-the-Malargue-fold?redirectedFrom=fulltext</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1144/jgs2023-065" target="_blank" >10.1144/jgs2023-065</a>
Alternative languages
Result language
angličtina
Original language name
Pleistocene deformation of the Malargüe fold-thrust belt from structural modelling and geochronology of syntectonic sedimentation
Original language description
We report uplift and shortening rates from a late Neogene–Pleistocene deformation stage of the frontal fold–thrust belt and adjacent wedge-top in the Principal Cordillera of the southern Central Andes (latitude 33–39°S). A structural model is presented based on integration of surface field data and subsurface 2D seismic sections. Shortening, uplift and sedimentation rates were calculated from different steps of kinematic modelling. Our structural interpretations and modelling are integrated with new detrital zircon U–Pb geochronology to define a previously overlooked Pleistocene period of orogenic shortening and syntectonic sedimentation in the Malargüe basin. This task was possible as a result of the dating of three samples yielding ages between ∼12 and 1 Ma obtained from a 900 m deep well located in the foreland. From stratigraphic correlations, our data record an active Plio-Pleistocene wedge-top depozone coeval with retreat of the volcanism, and the emplacement of retroarc basalts. Structural modelling, together with detrital zircon U–Pb provenance data, registers shortening producing a foredeep to wedge-top Plio-Pleistocene transition, adjusting and completing the knowledge of the frontal fold–thrust belt and foreland basin in the southern Central Andes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the Geological Society
ISSN
0016-7649
e-ISSN
2041-479X
Volume of the periodical
181
Issue of the periodical within the volume
3
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
jgs2023-065
UT code for WoS article
001196712000002
EID of the result in the Scopus database
2-s2.0-85193019572