1. Editors' Preface2. Professor José Manuel Sayago: Obituary3. Gabriella M. Boretto, Marcela Cioccale, José Tello, Eduardo García Aráoz, Sandra GordilloIdentification of knickpoints in littoral basins of Patagonia Argentina: geomorphic markers in a passive margin4. Carla Ginesta and Natalia RíosPreliminary morphometric studies of the Talacasto river basin, San Juan, Argentina5. Silvia C. Grill, Mauro L. Gómez Samus, Ana L. FernándezNeogene continental deposits of Bahía Blanca, Argentina. Palaeoenvironmental and palaeoclimatic inferences6. Juan Pablo Carbonelli and Mirian CollantesEarly occupations in the valleys region of Northwestern Argentina: dating by varnish micro-laminations7. María Yanina Esper Angillieri, Oscar Mario Fernández, Miguel Pereyra, Carla Ginesta Torcivia and Natalia RíosMorphometric analysis of river basins using GIS as a basis for peak discharge calculation. A case of study: PreAndean section of Route 150, Argentina.8. Eduardo García Aráoz, Nicolás Madelón, Micaela Pleitavino, Gabriella Margherita Boretto and Marcela CioccaleGranitic caves from the Achala batholith in the province of Cordoba, Argentina: a study on three particular stories with a common past9. Juan Pablo Velázquez, Elizabeth Mazzoni and Jorge RabassaScenic and geo-touristic potential of volcanic landscapes in Southern Patagonia: necks, buttes and eruption centers, Santa Cruz province, Argentina10. Adriana E. Niz, Gabriel G. Cejas and Erlinda V. OrtizEvolution of the eolian dynamics and its impact in the community of the Valley of Fiambalá, province of Catamarca, Argentina11. Niz, Adriana E., Lamas, Cinthia A., Iramain, Sergio, Oviedo, Jorge A., Cejas, Gabriel G. and Serra, MalvinaGeomorphological characterization and assessment of the geomorphological risks of fluvial origin in the San Jerónimo river basin, Chumbicha, province of Catamarca, Argentina12. Coronato, A., Salemme, M., Oría, J., Mari, F., López, R. Perched dunes in the Fuegian steppe: a great reservoir of archaeological and environmental Holocene information13. Santi Malnis, P., Colombi, C.E., Rothis, L.M.Sedimentary environments in the western piedmont of the La Huerta mountain range, Pampean Ranges, province of San Juan, Argentina14. Rothis, L.M., Haro, F.M., Perucca, L.P.New morphotectonic evidence in the Eastern slopes of the Sierra de la Huerta: the Marayes Fault System, Western Pampean Ranges

About the Author: Jorge Rabassa received his PhD in Geology from the Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Argentina. He was a postdoctoral Fulbright fellow at the State University of New York at Binghamton, U.S.A. He is a researcher with CONICET (the National Research Council of Argentina) since 1986, at CADIC, Ushuaia, Tierra del Fuego (the southernmost research center of the world with permanent staff). He has taught at several Argentine universities, such as La Plata, Comahue, Patagonia-San Juan Bosco and Tierra del Fuego. He has been a visiting scholar in the U.S.A. (Lehigh University, University of Wisconsin-Madison, University of Illinois at Urbana-Champaign), Spain (universities of Barcelona and Santiago de Compostela), South Africa (universities of Witwatersrand and Natal) and Brazil (universities of Sao Paulo and Campinas). He has published more than 200 journal articles and book chapters and was the founder and head editor of the journal "Quaternary of South America & Antarctic Peninsula" (A.A.Balkema Publishers, The Netherlands) from 1982 to 1999. He has a longstanding relationship with CADIC-CONICET, both as director for two periods and presently Senior Investigator. He is a member of both the Argentine Academy of Sciences and the Catalonian Academy of Sciences (IEC). He is presently the President of the Argentine Association of Geomorphology and Quaternary Studies (2015-2018).