Thermal springs, fumaroles and gas vents of continental Yemen: their relation with active tectonics, regional hydrology and country's geothermal potential. (Articolo in rivista)

Type
Label
  • Thermal springs, fumaroles and gas vents of continental Yemen: their relation with active tectonics, regional hydrology and country's geothermal potential. (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Minissale A.(1); Mattash M.A.(2); Vaselli O.(3); Tassi F.(3); Al-Ganad I.N.(4); Selmo E.(5); Shawki M.N.(6); Tedesco D.(7); Poreda R.(8); Ad-Dukhain A.M.(4); Hazzae M.K.(4) (2007)
    Thermal springs, fumaroles and gas vents of continental Yemen: their relation with active tectonics, regional hydrology and country's geothermal potential.
    in Applied geochemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Minissale A.(1); Mattash M.A.(2); Vaselli O.(3); Tassi F.(3); Al-Ganad I.N.(4); Selmo E.(5); Shawki M.N.(6); Tedesco D.(7); Poreda R.(8); Ad-Dukhain A.M.(4); Hazzae M.K.(4) (literal)
Pagina inizio
  • 799 (literal)
Pagina fine
  • 820 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 22 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) CNR - Italian Council for Research, Institute of Geosciences and Earth Resources of Florence, Via La Pira 4 - 50121 Firenze (Italy) 2) Ministry of Oil and Mineral Resources, Geological Survey and Minerals Resources Board, P.O. Box 297, Sana'a (Yemen) 3) Department of Earth Sciences, Via La Pira 4 - 50121 Firenze (Italy) 4) Department of Earth Sciences, Parco Area delle Scienze 157A - 43100 Parma (Italy) 5) Department of Geology, University of Ta'iz, P.O. Box 5679, Ta'iz (Yemen) 6) Department of Environmental Sciences, Second University of Naples, Via Vivaldi 43 - 81100 Caserta (Italy) 7) Department of Earth and Environmental Sciences, 227 Hutchinson Hall, Rochester, NY 14627 (U.S.A.) (literal)
Titolo
  • Thermal springs, fumaroles and gas vents of continental Yemen: their relation with active tectonics, regional hydrology and country's geothermal potential. (literal)
Abstract
  • Most thermal springs of continental Yemen (about 65 emergences at 48 sampling sites) and a couple of fumaroles and boiling water pools have been sampled and analyzed for chemical and isotopic composition in the liquid phase and the associated free-gas phase. Whatever the emergence, all the water discharges have an isotopic signature of meteoric origin. Springs seeping out from high altitudes in the central volcanic plateau show a prevalent Na-HCO3-composition, clearly affected by an anomalous flux of deep CO2 deriving from active hydrothermal systems located in the Jurassic Amran Group limestone sequence and/or the Cretaceous Tawilah Group, likely underlying the 2000-3000 m thick volcanic suite. At lower elevations, CO2 also affects the composition of some springs emerging at the borders of the central volcanic plateau. Although mixing to a limited extent with organic CO2 infiltrating together with the meteoric recharge waters cannot be ruled out, all the CO2-rich gas samples have a delta C-13-CO2 signature that falls in the range of mantle CO2 (-3 < delta C-13 < -7% V-PDB). The relatively high He-3/He-4 (1 < R/R-a < 3.2) ratios measured in all the CO2-rich springs and also some mixed N-2-CO2 gas vents in the far east Hadramaut region support the presence of mantle magmas and related hydrothermal systems residing at the crust level in several areas of Yemen. This well agrees with the presence of Quaternary basaltic magmatic activity along the Gulf of Aden, as well as inside the central Yemen volcanic plateau. (literal)
Prodotto di
Autore CNR

Incoming links:


Autore CNR di
Prodotto
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
data.CNR.it