Blar i forfatter "Plaza Faverola, Andreia Aletia"

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    • Detection of gas hydrates in faults using azimuthal seismic velocity analysis,Vestnesa Ridge, W-Svalbard Margin 

      Singhroha, Sunny; Bünz, Stefan; Plaza Faverola, Andreia Aletia; Chand, Shyam (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-24)
      Joint analysis of electrical resistivity and seismic velocity data is primarily used todetect the presence of gas hydrate-filled faultsand fractures. In this study, we present a novel approach to inferthe occurrence of structurally-controlled gas hydrateaccumulations using azimuthal seismic velocity analysis. We perform thisanalysis using ocean-bottom seismic (OBS) data at two sites on Vestnesa ...

    • Local Seismicity and Sediment Deformation in the West Svalbard Margin: Implications of Neotectonics for Seafloor Seepage 

      Domel, Przemyslaw; Plaza Faverola, Andreia Aletia; Schlindwein, Vera; Bünz, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-12)
      In the Fram Strait, mid-ocean ridge spreading is represented by the ultra-slow system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments on oceanic and continental crust are gas charged and there are several locations with documented seafloor seepage. Sedimentary faulting shows recent stress release in the sub-surface, but the drivers of stress change and its influence ...

    • Stress Constraints From Shear-Wave Analysis in Shallow Sediments at an Actively Seeping Pockmark on the W-Svalbard Margin 

      Singhroha, Sunny; Schramm, Bettina; Plaza Faverola, Andreia Aletia; Domel, Przemyslaw; Dannowski, Anke; Cooke, Frances Ann; Bünz, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-28)
      Mechanisms related to sub-seabed fluid flow processes are complex and inadequately understood. Petrophysical properties, availability of gases, topography, stress directions, and various geological parameters determine the location and intensity of leakage which change over time. From tens of seafloor pockmarks mapped along Vestnesa Ridge on the west-Svalbard margin, only six show persistent present-day ...