Articolo in rivista, 2020, ENG, 10.3390/en13205492

Geological map of the tocomar basin (puna plateau, NW argentina). Implication for the geothermal system investigation

Filipovich, R. and Baez, W. and Groppelli, G. and Ahumada, F. and Aldega, L. and Becchio, R. and Berardi, G. and Bigi, S. and Caricchi, C. and Chiodi, A. and Corrado, S. and De Astis, G. and De Benedetti, A.A. and Invernizzi, C. and Norini, G. and Soligo, M. and Taviani, S. and Viramonte, J.G. and Giordano, G.

Instituto de Bio y Geociencias del NOA (IBIGEO, UNSa-CONICET), Av. 9 de Julio 14, Salta, A4405BBA, Argentina; CNR Istituto di Geologia Ambientale e Geoingegneria, sezione di Milano, Via Mario Bianco 9, Milan, 20131, Italy; Dipartimento di Scienze della Terra, Sapienza Universit? di Roma, Piazzale Aldo Moro, 5, Rome, 00185, Italy; Dipartimento di Scienze, Universit? degli Studi di Roma Tre, Largo S. L. Murialdo 1, Rome, 00146, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Rome, 00143, Italy; Scuola di Scienze e Tecnologia-Sezione di Geologia, Universit? di Camerino, Via Gentile III da Varano, Camerino, 62032, Italy; Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milan, 20126, Italy

This paper presents a detailed geological map at the 1:20,000 scale of the Tocomar basin in the Central Puna (north-western Argentina), which extends over an area of about 80 km2 and displays the spatial distribution of the Quaternary deposits and the structures that cover the Ordovician basement and the Tertiary sedimentary and volcanic units. The new dataset includes litho-facies descriptions, stratigraphic and structural data and new 234U/230Th ages for travertine rocks. The new reconstructed stratigraphic framework, along with the structural analysis, has revealed the complex evolution of a small extensional basin including a period of prolonged volcanic activity with different eruptive centres and styles. The geological map improves the knowledge of the geology of the Tocomar basin and the local interplay between orogen-parallel thrusts and orogen-oblique fault systems. This contribution represents a fundamental support for in depth research and also for encouraging geothermal exploration and exploitation in the Puna Plateau region. ? 2020 by the authors.

Energies (Basel) 13 (20)

Keywords

Central Puna, Geothermal exploration; Southern Central Andes; U/Th dating

CNR authors

Groppelli Gianluca, Norini Gianluca

CNR institutes

IGAG – Istituto di geologia ambientale e geoingegneria

ID: 439385

Year: 2020

Type: Articolo in rivista

Creation: 2020-12-17 09:38:07.000

Last update: 2021-01-21 12:33:24.000

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:439385

DOI: 10.3390/en13205492

Scopus: 2-s2.0-85093961996