geosciences Article Prospecting Glacial Ages and Paleoclimatic Reconstructions Northeastward of Nevado Coropuna (16◦ S, 73◦ W, 6377 m), Arid Tropical Andes Jose Úbeda 1,2,3,* ID , Martí Bonshoms 2, Joshua Iparraguirre 1, Lucía Sáez 3, Ramón de la Fuente 3, Lila Janssen 3, Ronald Concha 1, Pool Vásquez 1 and Pablo Masías 1 1 Instituto Geológico Minero y Metalúrgico, Av. Canadá 1470, San Borja 15034, Peru;
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[email protected] (P.M.) 2 Grupo de Investigación en Geografía Física de Alta Montaña, Departamento de Geografía, Universidad Complutense de Madrid, 28040 Madrid, Spain;
[email protected] 3 Guías de Espeleología y Montaña (Speleology and Mountain Guides), Casilla del Mortero, Torremocha de Jarama, 28189 Madrid, Spain;
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[email protected] (L.J.) * Correspondence:
[email protected]; Tel.: +34-656408790 Received: 19 July 2018; Accepted: 15 August 2018; Published: 20 August 2018 Abstract: This work investigates the timing, paleoclimatic framework and inter-hemispheric teleconnections inferred from the glaciers last maximum extension and the deglaciation onset in the Arid Tropical Andes. A study area was selected to the northeastward of the Nevado Coropuna, the volcano currently covered by the largest tropical glacier on Earth. The current glacier extent, the moraines deposited in the past and paleoglaciers at their maximum extension have been mapped. The present and past Equilibrium Line Altitudes (ELA and paleoELA) have been reconstructed and the chlorine-36 ages have been calculated, for preliminary absolute dating of glacial and volcanic processes.