Quaternary deposits around Lake Tenno (southwestern Trentino, Italy) document its glacial origin

Monica Ghirotti (a), Vincenzo Picotti (b), Lisa Borgatti (c), Maria Cecilia Spreafico (c) & Simone Dolzan (d)
(a) Department of Physics and Earth Sciences, University of Ferrara, Via Saragat, 1, 44122, Ferrara, Italy. E-mail: monica.ghirotti@unife.it (b) Department of Biological, Geological and Environmental Sciences BiGeA, Alma Mater Studiorum Università di Bologna, Via Zamboni, 67, 40127 Bologna, Italy. (c) Department of Civil, Chemical, Environmental and Materials Engineering DICAM, Alma Mater Studiorum Università di Bologna, Viale del Risorgimento 2, 40136 Bologna, Italy. (d) Danieli Headquarters, Via Nazionale 41, 33042 Buttrio (UD), Italy.

Lake Tenno (north of Lake Garda) is generally considered a landslide-dammed lake, originated by a rock avalanche of Middle Ages whose source area can be easily identified on the northeastern slope of Cima Salti. In this study we present new data to support a Lateglacial age and moraine-dam origin for Lake Tenno.

Cima Salti rock avalanche, Quaternary deposits, Lake Tenno, Trentino, Italy.