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  • Fluids
  • Seismology
  • Elsevier  (11)
  • Blackwell  (2)
  • Blackwell Publishing Ltd
  • Nature Publishing Group
  • 2005-2009  (2)
  • 2000-2004  (11)
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  • 1
    Publication Date: 2017-04-04
    Description: The first geochemical data showing the existence of an active degassing activity over a large seismically active sector of the Southern Alps (Friuli Region, NE Italy) are presented. The dissolved gases, helium and carbon isotopic systematics of 46 water samples taken from 13 sites running along E–W and NE–SW faults besides the natural degassing of a 5000 km2 wide area are investigated. The chemical composition of the dissolved gases revealed that a CO2-rich gas phase feeds the local groundwaters. 3He/4He ratios (R) normalized to the atmospheric 3He/4He ratio (Ra=1.39×10−6) and corrected for the atmospheric contamination (R/Rac), range from 0.29 to 1 as a result of a two component (radiogenic and atmospheric) mixing. The δ13C values of total dissolved inorganic carbon (TDIC) ranging from −15.28 to −0.75‰ vs. PDB, show the occurrence of multiple gas–water interactions. The mixing between the atmospheric air and a crustal source and the gas–water interactions occurring at various extents appears to be the main control on the observed He–C systematics. The natural CO2 degassing was evaluated by a soil gas survey carried out by a grid of about 100 measuring sites located over the area that generated destructive seismic sequences (e.g. the Gemona sequence of 1976; main shocks M6.4 of 6th May and M6.1 of 11th and 15th September). The results obtained show that a significant amount of crustal-originated gases are released over the continental area of Eastern Southern Alps. The evidence that carbon dioxide is associated with radiogenic-type helium denotes the lack of the mantle as primary energy and degassing source, highlighting the possibility that CO2 is produced by thermo-mechanical processes occurring at seismogenic depth. The information provided here may be used to start up a long-term geochemical monitoring of this seismically active area and could be able to detect the modifications occurring to the circulating fluids to gain a better insight on the relationships between the fluids' geochemistry and the activity of the local seismogenic faults.
    Description: Published
    Description: 76–85
    Description: 3.2. Tettonica attiva
    Description: JCR Journal
    Description: reserved
    Keywords: Fluids ; Faults ; geochemistry ; isotopes ; 04. Solid Earth::04.02. Exploration geophysics::04.02.01. Geochemical exploration
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Elsevier
    In:  Amsterdam, 528 pp., Elsevier, vol. 32, no. XVI:, pp. 227-235, (ISBN 0231-12739-1 hb, 0231127383 pb)
    Publication Date: 2000
    Keywords: Seismics (controlled source seismology) ; Applied geophysics ; Wave propagation ; Waves ; Acoustics ; Fluids ; Textbook of geophysics
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  • 3
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    Blackwell
    In:  Amsterdam, 2 vols. (Part A and B; 1 + 2 CD-ROMs), Blackwell, vol. 81A and 81B, no. 22, pp. 65-70, (1405101733, 336 p.)
    Publication Date: 2005
    Description: Contents: Preface, Acknowledgments, 1. Planet Earth and Earth systems, 1.1 Comparative planetology, 1.2 Unique Earth, 1.3 Earth systems snapshots, 1.4 Measuring Earth, 1.5 Whole Earth, 1.6 Subtle interactive Earth, Further reading, 2. Matters of state and motion, 2.1 Matters of state, 2.2 Thermal matters, 2.3 Quantity of matter, 2.4 Matter in general motion: kinematics, 2.5 Continuity: mass conservation in fluids, Further reading, 3. Forces and dynamics, 3.1 Quantity of motion: momentum, 3.2 Acceleration, 3.3 Force, work, energy and power, 3.4 Thermal energy and mechanical work, 3.5 Hydrostatic pressure force, 3.6 Buoyancy force, 3.7 Radial force, 3.8 Rotational force, vorticity and coriolis acceleration, 3.9 Viscosity, 3.10 Viscous force, 3.11 Turbulent friction force, 3.12 Overall forces of fluid motion, 3.13 Solid stress, 3.14 Solid strain, 3.15 Rheology, Further reading, 4. Flow, deformation, and transport, 4.1 The origin of large-scale fluid flow, 4.2 Fundamental types of fluid flow, 4.3 Fluid boundary layers, 4.4 Laminar flow, 4.5 Turbulent flow, 4.6 Stratified flows, 4.7 Particle settling, 4.8 Particle transport by flows, 4.9 Waves and liquids, 4.10 Transport by waves, 4.11 Granular gravity flow, 4.12 Turbidity flow, 4.13 Flow through porous solids and granular solids, 4.14 Fractures, 4.15 Solid failure and faults, 4.16 Solid bending, buckling, and folds, 4.17 Seismic waves, 4.18 Molecules in motion: kinetic theory, heat conduction, and diffusion, 4.19 Heat transport by radiation, 4.20 Heat transport by convection, Further reading, 5. Inner Earth processes and systems, 5.1 Melting magmas and volcanoes, 5.2 Plate tectonics, Further reading, 6. Outer Earth processes and systems 6.1 Atmosphere, 6.2 Atmosphere-ocean interface, 6.3 Atmosphere-land interface, 6.4 Deep ocean, 6.5 Shallow ocean, 6.6 Ocean-land interface: coasts, 6.7 Land surface, Further reading, Appendix: brief mathematical refresher or study guide, Cookies, Index
    Keywords: Textbook of geophysics ; Textbook of physics ; GeodesyY ; Stress ; Strain ; Fluids ; Fracture ; Geol. aspects ; Geothermics ; Gravimetry, Gravitation ; Rheology ; Earth rotation ; Perez
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  • 4
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    Blackwell
    In:  Boston, 512 pp., Blackwell, vol. 30, no. Publ. No. 12, pp. 95-104, (ISBN 0-865-42078-5)
    Publication Date: 2003
    Keywords: Textbook of geophysics ; Seismology ; pedagogical ; strength ; and ; breadth ; of ; coverage, ; interesting ; examples ; and ; challenging ; problems ; FORTRAN
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  • 5
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    Elsevier
    In:  Amsterdam, 530 pp., Elsevier, vol. 37, no. XVI:, pp. 227-235, (ISBN 0231-12739-1 hb, 0231127383 pb)
    Publication Date: 2002
    Keywords: Seismics (controlled source seismology) ; Applied geophysics ; Wave propagation ; Waves ; Textbook of geophysics ; Acoustics ; Fluids ; High frequency ... ; Kirchoff ; seismic Migration ; Layers ; Channel waves
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  • 6
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    Elsevier
    In:  Amsterdam, Elsevier, vol. 65, no. ALEX(01)-FR-77-01, AFTAC Contract F08606-76-C-0025, pp. 95-104, (ISBN: 0-08-044051-7)
    Publication Date: 2000
    Keywords: Seismology ; Textbook of geophysics
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  • 7
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    Elsevier
    In:  Amsterdam, 628 pp., Elsevier, vol. 31, no. 1, pp. 1-40, (ISBN 0-691-01019-6)
    Publication Date: 2002
    Keywords: Textbook of geophysics ; Inversion ; instability ; well-posed ; ill-posed ; problems ; Least-squares ; Backus ; Gilbert ; Non-linear effects ; regularization ; potential ; Electromagnetic methods/phenomena ; Seismology ; Gram ; Schmidt ; Singular value decomposition ; Lanczos ; Green's function ; Tikhonov ; potential ; methods ; Seismics (controlled source seismology) ; Gravimetry, Gravitation ; Geomagnetics ; Textbook of mathematics ; seismic Migration
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  • 8
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    Elsevier
    In:  304 pp., Elsevier, vol. 6, no. 1, pp. 1-40, (ISBN: 0-444-51340-X)
    Publication Date: 2003
    Keywords: Seismology ; Volcanology ; Seismicity ; Seismic networks ; explosions ; tremor ; Tectonics ; Textbook of geophysics
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  • 9
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    Elsevier
    In:  Amsterdam, 304 pp., Elsevier, vol. 49, no. 2, pp. 497-504, (ISBN 0-8137-2359-0)
    Publication Date: 2000
    Keywords: Fluids ; Textbook of geophysics ; Textbook of engineering
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  • 10
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    Elsevier
    In:  New York, Elsevier, vol. 15, no. Subvol. b, pp. 220, (ISBN 0-12-305355-2)
    Publication Date: 2004
    Keywords: Rock mechanics ; Fluids ; Stress ; Strength
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