Conductive heat flow pattern of the central-northern Apennines, Italy
We analyzed thermal data from deep oil exploration and geothermal boreholes in the 1000-7000 m depth range to unravel thermal regime beneath the central-northern Apennines chain and the surrounding sedimentary basins. We particularly selected deepest bottom hole temperatures, all recorded within the permeable carbonate Paleogene-Mesozoic formations, which represent the most widespread tectono-stratigraphic unit of the study area. The available temperatures were corrected for the drilling disturbanceand the thermal conductivity was estimated from detailed litho-stratigraphic information and by taking into account the pressure and temperature effect. The thermal resistance approach, including also the radiogenic heat production, was used to infer the terrestrial heat flow and to highlight possible advective perturbation due to groundwater circulation. Only two boreholes close to recharge areas argue for deep groundwater flow in the permeable carbonate unit, whereas most of the obtained heat-flow data may reflect the deep, undisturbed, conductive thermal regime.
Open Access statement
The International Journal of Terrestrial Heat Flow and Applied Geothermics (IJTHFA) provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Full-text access to scientific articles of the journal is presented on the official website in the Archives section.
The IJTHFA is an open access journal, which means all its content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author as long as they cite the source. The journal is licensed by Creative Commons Attribution International BY-NC-SA 4.0.
Journal metrics and indexing:
International Scientific Indexing (ISI)
Impact Factor: 0.754