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Authors: Cotecchia, V.* 
D'Ecclesiis, G.* 
Polemio, M.* 
Title: Studio idrogeologico della sorgente Parrutta in agro di Trecchina (PZ)
Issue Date: 1993
Series/Report no.: 28
Keywords: Idrogeologia
Subject Classification03. Hydrosphere::03.02. Hydrology::03.02.03. Groundwater processes 
Abstract: Parruta Spring (220 m asl) lies at the foot of the eastern slopes of Serra Murazze. The area is characterized by the overthrusting of the Verbicaro Unit on the Liguide Unit (Chaps 1 and 2, Fig. 1). Widespread tectonization,relief energy and structural attitude initiated deep gravity deformation and lateral spreading of the slopes, followed by roto-translational slides and flows (Chaps 2 anbd 3, Figs 2 and 3). Immediately upstream of the spring there are broken carbonate-rock masses resulting from lateral spreading (Chap 3, Fig. 3). These fractured rocks overlie blackish siliceous marls and argillites which are capped by a 10-m thick level of cataclastic limestone sands (Fig. 4). Deformation of the top of the argillaceous formation created basins that favour groundwater flow towards Parrutta Spring. Above these depressions the waters are fresher and colder and the hydrogeological characteristics of the wells are better (Chap. 4, Figs 2.5 and 6). The investigations confirm the working hypotheses adopted. Interpretation of the salinity and temperature logs, in particular, indicates that such investigations are particularly significant in hydrogeological environments of this type.
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