Análisis de la dinámica y evolución costera en la región de la localidad La Lobería, Río Negro

Abstract

The geological and geomorphological study is developed to understand the coastal dynamics in the seaside resort La Lobería, especially how it affects the retreat of the cliff. The processes that affect the coastal area were determined, encompassing them in marine processes, those that affect the base of the cliff causing basal cavities and caves and in the abrasion platform forming channels and grooves, and in subaerial processes that affect the cliff forming gravitational processes, identifying rock falls, overturns and landslides. In turn, the determining factors involved in the stability and erodability of the cliff were determined, related to the slope, lithology and structure. Through the evolutionary analysis of the cliff from "Coastal Evolutionary Segments" (CES), it proposes a cyclicality model that identifies the most predominant marine and subaerial processes during each stage. The erosion of the cliff tends to rectify its ridge line, being greater in those sectors where there are no means on a beach between these and the abrasion platform. The use of Unmanned Aerial Vehicle (UAV) is proposed for future coastal monitoring, due to its high spatial centrimetric resolution.