Isotopic And Chemical Assessment Of Geothermal Potential Of The Colli Albani Area, Latium Region, Italy

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Journal Article: Isotopic And Chemical Assessment Of Geothermal Potential Of The Colli Albani Area, Latium Region, Italy

Abstract
The chemical and isotopic compositions of low-temperature mineral waters discharged over the Colli Albani region (south of Rome, Italy) are those of highly immature waters of essentially meteoric origin formed through absorption of gases emanating from greater depth, followed by cation leaching of country rock at shallow levels. The composition of the gases discharged points to the presence, at depth, of a CO2-producing high temperature system in its waning stage. Low H2 and unsaturated hydrocarbon contents, as well as relative He, Ar and N2 contents indicate long residence time for the rising gas phase of the order of 1 Ma. On the basis of these findings, temperatures higher than 120°C appear unlikely to exist at shallow depth.

Authors 
W. F. Giggenbach, A. A. Minissale and G. Scandiffio








Published Journal 
Applied Geochemistry, Date Not Provided





DOI 
10.1016/0883-2927(88)90020-0


 

Citation

W. F. Giggenbach,A. A. Minissale,G. Scandiffio. . Isotopic And Chemical Assessment Of Geothermal Potential Of The Colli Albani Area, Latium Region, Italy. Applied Geochemistry. (!) .