Geo-structural map of the Laguna Blanca basin (Southern Central Andes, Catamarca, Argentina)
Journal
Date Issued
2015
Author(s)
Description
This research has been supported by the Cooperation Initiatives and Outgoing mobility under Bilateral
Agreements between the University of Padova and the Universidad Nacional de Tucuma´n. We thank
10 A. Traforti et al.
Downloaded by [Consiglio Nazionale delle Ricerche] at 00:50 17 September 2015
Adolfo Antonio Gutierrez for his invaluable contributions during field investigations, Dario Visona` for his
help in petrological analysis, Leonardo Tauro for thin section preparation and Sandra Speed, who improved
the English text. We acknowledge U. Riller and P. Mann, for their fruitful reviews that greatly improved the
manuscript, and H. Apps and J. Cron for their helpful comments on the map.
Abstract
The Laguna Blanca basin is a rhomb-shaped basin located at the SE margin of the Puna plateau
in the southern Central Andes (Catamarca, Argentina). An interactive analysis using remote
sensing and field mapping enabled us to produce a geo-structural map at a 1:350,000 scale.
Satellite images from multispectral sensors (ASTER and Landsat 7 ETM+) and medium
resolution Digital Elevation Models (SRTM and ASTER GDEM) were used in order to
recognize the structures and main lithologies, which were validated in the field and through
laboratory tests (e.g. spectral analysis). The final result is a geo-structural map of the
Laguna Blanca basin with a new geological unit subdivision, highlighting its tectonic origin,
which appears to be related to a releasing stepover along N-S sinistral strike-slip master faults.
Volume
12
Issue
3
Start page
431
Issn Identifier
1744-5647
Rights
open.access
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