Identification of tectonically active areas using DEM: a quantitative morphometric analysis of Mt. Medvednica, NW Croatia

• DOI: 10.7306/gq.1130
• Publication Date: 2013-11-15T03:16:39Z
• Authors: Bojan MATOŠ; Bruno TOMLJENOVIĆ; Neven TRENC
• Keywords: Neogene

Mt. Medvednica is an inselberg in NW Croatia which tectonically lies at the intersection between Southeastern Alps, Northwestern Dinarides and Tisza Mega-Unit of Pannonian basin. Due to Pliocene-Quaternary N-S directed transpression it experienced a differential uplift 1500-2000 m exposes pre-Neogene Neogene tectonic stratigraphic units surrounded by sediments. This paper evaluates set methods quantitative morphometry, used here for identification active areas within region characterized low-rate folding faulting during times. Analysis employed extraction hypsometric curves, calculation integral, asymmetry factor, statistical parameters normalized longitudinal main stream profiles 36 drainage basins delineated from 25-m resolution DEM area. Despite lithological heterogeneity, obtained morphometric are considered as fairly good indicators discriminating inactive areas. Based on calculated parameters, combination with geological data, most Quaternary found SW corner related segment North Boundary Fault, central part mountain Kašina fault zone subdividing into NE units.