Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8262
Authors: Italiano, F.* 
Caruso, C.* 
Title: Detection of fresh and thermal waters over an island with extinct volcanism: the island of Salina (Aeolian arc, Italy)
Issue Date: 2011
Series/Report no.: /4 (2011)
DOI: 10.1016/j.proeps.2011.11.005
URI: http://hdl.handle.net/2122/8262
Keywords: geochemistry
thermal fluids
volcanism
Subject Classification03. Hydrosphere::03.04. Chemical and biological::03.04.06. Hydrothermal systems 
Abstract: A geochemical prospection of the fluids circulating over a volcanic island highlighted the existence of reservoirs of both fresh and thermal water although only a few natural manifestation, mainly occurring in submarine environment, provide clues of their existence. Coupling the information provided by the diffuse gas bubbling and the low-salinity waters discharged from the sea floor off the Island with those from the low-salinity and thermal waters collected from in-land wells drilled in recent times we found that a large amount of fresh and thermal waters are continuously discharged at the sea level. The thermal waters, collected at a temperature of 32-36°C, show a typical marine recharge with equilibrium temperatures estimated to be in the range of 120-160°C. As matter of fact, the small island holds relatively large reservoirs of both fresh and thermal waters. The geochemical features of the circulating fluids are driven by water-rock and gas-water interaction processes, while the heat supplied to the geothermal reservoir comes from volcanic rocks that are still cooling down after the end of the last volcanic activity supposed to be not older than 13ky.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
procedia_salina.pdfmain article1.48 MBAdobe PDFView/Open
Show full item record

Page view(s)

112
Last Week
0
Last month
0
checked on Aug 16, 2018

Download(s)

19
checked on Aug 16, 2018

Google ScholarTM

Check

Altmetric