Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/444
Authors: | Chiodini, G.* Cardellini, C.* Amato, A.* Boschi, E.* Caliro, S.* Frondini, F.* Ventura, G.* |
Title: | Carbon dioxide Earth degassing and seismogenesis in central and southern Italy | Journal: | Geophysical Research Letters | Series/Report no.: | 31, L07615 | Publisher: | American Geophysical Union | Issue Date: | 2004 | DOI: | 10.1029/2004GL019480 | URL: | http://www.agu.org | Keywords: | Carbon dioxide Central Italy Southern Italy |
Subject Classification: | 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects 03. Hydrosphere::03.04. Chemical and biological::03.04.02. Carbon cycling 04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistry 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics |
Abstract: | We present the first regional map of CO2 Earth degassing from a large area (most of central and south Italy) derived from the carbon of deep provenance dissolved in the main springs of the region. The investigation shows that a globally significant amount of deeply derived CO2 (10% of the estimated global CO2 emitted from subaerial volcanoes) is released by two large areas located in western Italy. The anomalous flux of CO2 suddenly disappears in the Apennine in correspondence to a narrow band where most of seismicity concentrates. Here, at depth, the gas accumulates in crustal traps generating CO2 overpressurized reservoirs which induce seismicity. |
Appears in Collections: | Article published / in press Article published / in press Manuscripts |
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