A geologia no plano de manejo do Parque Estadual de Vila Velha, PR

Abstract

As a requirement of the management plan of the Vila Velha State Park (PEVV), Parana State, Southern Brazil, studies included geological and geomorphological mapping, and photointepretation of geological and relief features in several scales (1:70.000 to 1:2.000, with final maps 1:40.000). The field works and data analysis emphasised main aspects related to the conservation unit. The PEVV is situated in the eastern edge of the Parana Basin, in a region strongly affected by faults, fractures and dikes related to Mesozoic activity in the Ponta Grossa Arch. The geological units present are the Furnas and Ponta Grossa formations (Devonian), the Itarare Group (Carboniferous-Permian), Serra Geral diabase dikes (Lower Cretaceous) and Quaternary alluvial and coluvial sediments. Singular landforms in the PEVV are escarpments, inselbergs, ruiniform landscapes, towers, pinnacles, grikes, corridors, labyrinths, ‘furnas’ (sinkholes), humid depressions, ponds, waterfalls, rapids, ‘tafoni’, solution pans, ‘lapies’, alveolus, anastomosed tunnels, corrosion cones, polygonal fractures and termite perforations. The main results of the geological studies concern the indication of specific interest areas or themes for visitation, protection of special areas, recovery of degraded areas, utilization of adequate construction material, indication of hazardous situations, indication of specific equipments, indication of areas for new attractivenesses development, indication of themes for new scientific research, indication of priority areas for the enlargement of the protected perimeter, indication of activities for environmental interpretation, information for the production of printed material and human resources training.