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  • Borehole geophys.  (11)
  • 05.09. Miscellaneous  (4)
  • Fracture
  • Plate tectonics
  • Elsevier  (14)
  • Applied Science Publishers  (7)
  • American Association of Petroleum Geologists (AAPG)
  • Springer Science + Business Media
  • 2020-2022  (5)
  • 1985-1989  (8)
  • 1980-1984  (8)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Newly discovered orichalcum ingots from Mediterranean sea: Further investigation (2021)
    Elsevier
    Details
    Publication Date: 2021-04-14
    Description: In February 2016, 47 ingots were found in the seabed of Contrada Bulala (Gela, CL, Italy) near the site where 40 ingots had previously been recovered. The ingots composition was determined to be a Cu - Zn alloy, dated by the archaeologist to the VI century B.C. This specific alloy was then known as Orichalcum. From an archaeological point of view, the first question raised about the new discovery was whether the ingots of the first and the second excavations belonged to the same shipwreck. Following the previous study, an elemental analysis was performed on the ingots from the second finding by using ICP-OS and ICP-MS techniques. The chemometric treatment of the analytical results obtained on both sets, i.e. ingots from first and second discovery, confirms their similarity. Therefore, the two findings can be considered to belong to the same naval load. The lead isotopic ratios were determined on selected/representative ingots to improve the knowledge about this treasure. Results can provide information about probable location of the lead sources, that could be very useful for the reconstruction of the ancient trade routes in the Mediterranean Sea.
    Description: Published
    Description: 102901
    Description: 2IT. Laboratori analitici e sperimentali
    Description: JCR Journal
    Keywords: Orichalcum ingots ; Lead Isotopic ratio ; ICP-OES ICP-MS ; Chemometric approach ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Tidal modulation of plate motions (2020)
    Elsevier
    Details
    Publication Date: 2020-09-07
    Description: While mantle convection is a fundamental ingredient of geodynamics, the driving mechanism of plate tectonics remains elusive. Are plates driven only from the thermal cooling of the mantle or are there further astronomical forces acting on them? GPS measurements are now accurate enough that, on long baselines, both secular plate motions and periodic tidal displacements are visible. The now 〉20 year-long space geodesy record of plate motions allows a more accurate analysis of the contribution of the horizontal component of the body tide in shifting the lithosphere. We review the data and show that lithospheric plates retain a non-zero horizontal component of the solid Earth tidal waves and their speed correlates with tidal harmonics. High-frequency semidiurnal Earth's tides are likely contributing to plate motions, but their residuals are still within the error of the present accuracy of GNSS data. The low-frequency body tides rather show horizontal residuals equal to the relative motion among plates, proving the astronomical input on plate dynamics. Plates move faster with nu- tation cyclicities of 8.8 and 18.6 years that correlate to lunar apsides migration and nodal precession. The high- frequency body tides are mostly buffered by the high viscosity of the lithosphere and the underlying mantle, whereas low-frequency horizontal tidal oscillations are compatible with the relaxation time of the low-velocity zone and can westerly drag the lithosphere over the asthenospheric mantle. Variable angular velocities among plates are controlled by the viscosity anisotropies in the decoupling layer within the low-velocity zone. Tidal oscillations also correlate with the seismic release.
    Description: Published
    Description: 103179
    Description: 1T. Struttura della Terra
    Description: JCR Journal
    Keywords: Body tide ; Plate tectonics ; Geeodynamics ; 04.07. Tectonophysics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    Fuzzy cellular systems for a new computational paradigm (2020)
    Elsevier
    Details
    Publication Date: 2020-11-25
    Description: In this paper a new approach for processing arrays of data is proposed. It is based on fuzzy logic and the concepts of cellular computation. Arrays of simple, identical processing elements (called fuzzy cells) are defined by using fuzzy rules. Moreover, each fuzzy cell interacts with its local neighbors. The overall behavior of these locally interacting fuzzy systems is used to process arrays of data. Some examples of practical applications are proposed. Among these, the new approach is applied to image-processing problems, and to the simulation of heat diffusion phenomena.
    Description: This work was partially supported by the Italian National Research Council (C.N.R.) under the special project "Reti neurali per i sistemi di controllo".
    Description: Published
    Description: 47-52
    Description: 3IT. Calcolo scientifico
    Description: JCR Journal
    Keywords: fuzzy logic ; partial differential equations ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    Methanotrophy in geothermal soils, an overlooked process: The example of Nisyros island (Greece) (2020)
    Elsevier
    Details
    Publication Date: 2020-07-13
    Description: A multidisciplinary field campaign was carried out at Nisyros Island (Greece). Hydrothermal gases were sampled and analysed, and CH4 and CO2 fluxes from the soils were measured with the accumulation chamber method. The sampling area (Lakki plain) covers an area of about 0.08 km2, and includes the main fumarolic areas of Kaminakia, Stefanos, Ramos, Lofos and Phlegeton. Flux values measured at 130 sites range from −3.4 to 1420 mg m−2 d−1 for CH4 and from 0.1 to 383 g m−2 d−1 for CO2. The fumarolic areas show very different CH4 degassing patterns, Kaminakia showing the highest CH4 output values (about 0.8 t a−1 from an area of about 30,000 m2) and Phlegeton the lowest (about 0.01 t a−1 from an area of about 2500 m2). The total output from the entire geothermal system of Nisyros should not exceed 2 t a−1. Previous indirect estimates of the CH4 output at Nisyros, based on soil CO2 output and CH4/CO2 ratios in fumarolic gases, were more than one order of magnitude higher. The present work further underscores the utmost importance of direct CH4 flux data because indirect methods totally disregard methanotrophic activity within the soil. Ten soil samples were collected for CH4 consumption experiments and for metagenomic analysis. Seven of the soil samples showed small but significant CH4 consumption (up to 39.7 ng g−1 h−1) and were positive for the methanotrophs-specific gene (pmoA) confirming microbial CH4 oxidation in the soil, notwithstanding the harsh environmental conditions (high temperature and H2S concentrations and low pH).
    Description: Published
    Description: 119546
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: JCR Journal
    Keywords: Methanotrophy ; Soil degassing ; Hydrothermal systems ; Methane output ; Greenhouse gases ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    CO2 release to the atmosphere from thermal springs of Sperchios Basin and northern Euboea (Greece): The contribution of “hidden” degassing (2020)
    Elsevier
    Details
    Publication Date: 2020-07-13
    Description: Greece is a region characterised by intense geodynamic activity that favours the circulation of hydrothermal fluids in the crust transporting volatiles from either the deep crust or the mantle to the surface. Elevated heat flow values are detectable at Sperchios Basin and North Euboea (central Greece), two areas defined by a system of deeply rooted extensional faults and Quaternary volcanic activity. This setting contributed to the formation of numerous hydrothermal systems, which are mostly expressed as CO2-rich thermal springs with intense bubbling. The CO2 output from six bubbling pools has been determined by flux measurements with the use of the floating chamber method. The highest bubbling CO2 output has been found at Thermopyles and Psoroneria (0.6 and 0.84 t/d, respectively), where the outgoing channels have an elevated flow (〉250 l/s) of gas-charged water (〉15 mmol/l of CO2). Although no bubbling is noticed along the stream, the CO2 content decreases by an order of magnitude after few hundreds of metres, indicating an intense degassing from the water. Taking into account the water flow and the amount of CO2 lost to the atmosphere, the CO2 output of the outgoing channels is quantified in 12.5 t/d for Thermopyles and 9.23 t/d for Psoroneria. Output estimation has also been made for the other springs of the area. The diffuse CO2 release from the outgoing channels has always been higher respect to that of the visible bubbling, suggesting that most of the degassing is “hidden”. Furthermore, the loss of CO2 from the water has determined a shift in dissolved carbonate species as demonstrated by the pH increase along the channel that led eventually to an oversaturation in carbonate minerals and therefore travertine deposition. The total CO2 output to the atmosphere of the study area is estimated at ~27 t/d, with the major contribution deriving from the degassing along the outflow channels of the thermal springs. Such output is comparable to that of the single active volcanic systems along the South Aegean Active Volcanic Arc and highlights the importance of “hidden” degassing along CO2-oversaturated streams.
    Description: Published
    Description: 104660
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: JCR Journal
    Keywords: C-cycle ; degassing sources ; stream outgassing ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
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    Induction Logging (1989)
    Elsevier
    In:  Amsterdam, 652 pp., Elsevier, vol. 39, no. XVI:, pp. 227-235, (0-444-51955-6)
    Details
    Publication Date: 1989
    Keywords: Borehole geophys. ; Textbook of geophysics ; Dual Induction Latero log
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    BIBLIOGRAPHY SEISMOLOGY
  • 7
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    Application of Fracture Mechanics to Composite Materials (1989)
    Elsevier
    In:  Amsterdam, Elsevier, vol. 6, no. 16, pp. 220, (ISBN: 3540148477)
    Details
    Publication Date: 1989
    Keywords: Fracture ; Rock mechanics ; Elasticity
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    BIBLIOGRAPHY SEISMOLOGY
  • 8
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    Mechanics of Tectonic Faulting (1988)
    Elsevier
    In:  Amsterdam, Elsevier, vol. 16, no. 1, pp. 662-664, (ISBN 0-470-87000-1 (HB), ISBN 0-470-87001-X (PB))
    Details
    Publication Date: 1988
    Keywords: Textbook of geology ; Tectonics ; Fault zone ; Stress ; Fracture ; Engineering geophys.
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    BIBLIOGRAPHY SEISMOLOGY
  • 9
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    Well Logging for Earth Scientists (1987)
    Elsevier
    In:  New York, Elsevier, vol. 138, no. 2, pp. 125-169, (ISBN 0-7923-5034-0)
    Details
    Publication Date: 1987
    Keywords: Borehole geophys. ; Textbook of geophysics
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    BIBLIOGRAPHY SEISMOLOGY
  • 10
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    Fundamentals of Well-log Interpretation - 2. The Interpretation of Logging Data (1986)
    Elsevier
    In:  Amsterdam, Elsevier, vol. Developments in Petroleum Science vol. 15B, no. Publ. No. 12, pp. 9, (ISBN: 0-12-636380-3)
    Details
    Publication Date: 1986
    Keywords: Borehole geophys. ; Textbook of geophysics ; Tectonics ; Geol. aspects ; GFZ ; RUB ; GMG ; 3.45.8 ; UniL ; IfGuG ; in ; Französisch
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  • 11
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    Regularities in the pattern of major fault zones of the earth and the origin of arcs (1986)
    Elsevier
    In:  Bull., Open-File Rept., The Origin of Arcs, Amsterdam, Elsevier, vol. 65, no. 1, pp. 63-78, (ISBN 0080419208)
    Details
    Publication Date: 1986
    Keywords: Tectonics ; Geol. aspects ; Fault zone ; Plate tectonics
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    BIBLIOGRAPHY SEISMOLOGY
  • 12
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    The fractal nature of fracture (1986)
    Elsevier
    In:  Bull., Polar Proj. OP-O3A4, Fractals in Physics, Amsterdam, Elsevier, vol. 24, no. 4, pp. 177-180, (ISBN 0080419208)
    Details
    Publication Date: 1986
    Keywords: Fracture ; FractureT
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    BIBLIOGRAPHY SEISMOLOGY
  • 13
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    Evidence of a deep-reaching lithospheric root under the Alpine arc (1986)
    Elsevier
    In:  Bull., Polar Proj. OP-O3A4, The Origin of Arcs, Amsterdam, Elsevier, vol. 13, no. Subvol. a, pp. 93-113, (ISBN 0080419208)
    Details
    Publication Date: 1986
    Keywords: CRUST ; earth mantle ; Plate tectonics ; Muller
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    BIBLIOGRAPHY SEISMOLOGY
  • 14
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    Fundamentals of Well-log Interpretation - 1. The Acquisition of Logging Data (1984)
    Elsevier
    In:  Amsterdam, Elsevier, vol. Developments in Petroleum Science vol. 15A, no. Publ. No. 12, pp. 9, (ISBN: 0-12-636380-3)
    Details
    Publication Date: 1984
    Keywords: Borehole geophys. ; Textbook of geophysics ; GFZ ; RUB ; GMG ; 3.45.8 ; UniL ; IfGuG ; in ; Französisch
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    BIBLIOGRAPHY SEISMOLOGY
  • 15
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    Focused resistivity logs (1982)
    Applied Science Publishers
    In:  Bull., Open-File Rept., Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. 16, pp. 61-94, (ISBN 0080419208)
    Details
    Publication Date: 1982
    Keywords: Borehole geophys. ; Geoelectrics ; Micro Spherically Focused Log
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    BIBLIOGRAPHY SEISMOLOGY
  • 16
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    Measurement and analysis of gravity in boreholes (1982)
    Applied Science Publishers
    In:  Bull., Polar Proj. OP-O3A4, Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. XVI:, pp. 269-303, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1982
    Keywords: Gravimetry, Gravitation ; Borehole geophys.
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    BIBLIOGRAPHY SEISMOLOGY
  • 17
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    Borehole geophysics in geothermal exploration (1982)
    Applied Science Publishers
    In:  Bull., Polar Proj. OP-O3A4, Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. 1, pp. 239-268, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1982
    Keywords: Borehole geophys. ; Geothermics
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    BIBLIOGRAPHY SEISMOLOGY
  • 18
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    Gamma-ray logging and interpretation (1982)
    Applied Science Publishers
    In:  Bull., Polar Proj. OP-O3A4, Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. 1, pp. 95-150, (ISBN: 3-540-23712-7)
    Details
    Publication Date: 1982
    Keywords: Borehole geophys. ; Gamma-Ray log ; density
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    BIBLIOGRAPHY SEISMOLOGY
  • 19
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    Electrical anisotropy: Its effect on well logs (1982)
    Applied Science Publishers
    In:  Bull., Polar Proj. OP-O3A4, Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. Subvol. b, pp. 195-238, (ISBN 0080419208)
    Details
    Publication Date: 1982
    Keywords: Borehole geophys. ; Anisotropy ; Geoelectrics
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    BIBLIOGRAPHY SEISMOLOGY
  • 20
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    Acoustic logging: The complete waveform and its interpretation (1982)
    Applied Science Publishers
    In:  Bull., Open-File Rept., Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. 1, pp. 151-193, (ISBN 0080419208)
    Details
    Publication Date: 1982
    Keywords: Borehole geophys. ; Borehole Compensated Sonic log ; Acoustics
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    BIBLIOGRAPHY SEISMOLOGY
  • 21
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    Interrelationship of resistivity and velocity logs (1982)
    Applied Science Publishers
    In:  Bull., Open-File Rept., Developments in Geophysical Exploration Methods, London, Applied Science Publishers, vol. 3, no. 16, pp. 33-59, (ISBN 0080419208)
    Details
    Publication Date: 1982
    Keywords: Borehole geophys. ; Geoelectrics ; Seismics (controlled source seismology) ; Dual Induction Latero log ; Borehole Compensated Sonic log
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    BIBLIOGRAPHY SEISMOLOGY
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