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Studio idrogeologico degli acquiferi profondi del Sinis(Sardegna Centro-Occidentale)

Carboni, Salvatore - Nicolò, C. - Pala, Antonio - Pili, S.L. (2002) Studio idrogeologico degli acquiferi profondi del Sinis(Sardegna Centro-Occidentale). Rendiconti del Seminario della Facoltà di Scienze dell'Università di Cagliari, 72 (1). pp. 52-90. ISSN 0370727X

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Abstract

Sinis area is located in the north western sector of Campidano plain, to the North of the Gulf of Oristano. In that sector of Sardinia underground waters constitute the most important water resource for agriculture. In Sinis area two deep aquifers have been placed. The first, placed in the western part, is constituted by sands and gravels and it is overhung by a very thick clayey marl’s layer. The water yeld of the confined aquifer has been determined by pumping tests from which it results that the pumping rate varies between 6 and 13.5 l/sec. The average Transmissivity is 1.7 x 10-3 m2/s. The other aquifer system, already known and studied for a long time, belongs to the alluvial multilayered aquifer of Campidano. It is constituted by very permeable layers of sands and gravels alternated to impervious or semi confining silty clay layers. The Transmissivity of this aquifer results superior to 10-3 m2/sec. Pumping rates are at least 6-7 l/sec. Chemical analysis showed that some samples of water taken in the southern part of Sinis present some anomalous values and they show thermal waters typical characters. This fact is confirmed by the average temperatures around 23°C. It could be a ground water recharge by deep thermal waters, with which waters coming from Montiferru would be mixed.

Item Type:Article
Date:2002
Institution:Università degli Studi di Cagliari
Divisions:Centri > Seminario Scientifico della Facolta' di Scienze MM.FF.NN.
Subjects:Area 04 - Scienze della terra > GEO/04 Geografia fisica e geomorfologia
Uncontrolled Keywords:Sinis area, underground waters, deep aquifers, water yeld, average Transmissivity
ID Code:249
Deposited On:10 Nov 2008 11:14

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