Geological Map of the Tocomar Basin (Puna Plateau, NW Argentina). Implication for the Geothermal System Investigation

Energies

Guido Giordano¹  Gianluca Norini¹  Gianluca Groppelli¹  Sara Taviani²  Luca Aldega³  Sabina Bigi³  Sveva Corrado⁴  ArnaldoA.De Benedetti⁴  Michele Soligo⁴  Gabriele Berardi⁴  Walter Báez⁵  Rubén Filipovich⁵  Raúl Becchio⁵  Agostina Chiodi⁵  JoséG. Viramonte⁵  Florencia Ahumada⁵  Gianfilippo De Astis⁶  Chiara Caricchi⁶  Chiara Invernizzi⁷ 

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

关键词: geothermal exploration;    U/Th dating;    Southern Central Andes;    central Puna;   

DOI  :  10.3390/en13205492

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown