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Umberta Tinivella, Michela Giustiniani and Héctor Marín-Moreno
Many studies demonstrated the coexistence of subaqueous permafrost and gas hydrate. Subaqueous permafrost could be a factor affecting the formation/dissociation of gas hydrate. Here, we propose a simple empirical approach that allows estimating the stead...
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Giulia Alessandrini, Umberta Tinivella, Michela Giustiniani, Iván de la Cruz Vargas-Cordero and Silvia Castellaro
In the last few years, interest in the offshore Chilean margin has increased rapidly due to the presence of gas hydrates. We have modelled the gas hydrate stability zone off Chilean shores (from 33° S to 46° S) using a steady state approach to evaluate t...
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Umberta Tinivella, Michela Giustiniani, Ivan de la Cruz Vargas Cordero and Atanas Vasilev
This Special Issue reports research spanning from the analysis of indirect data, modelling, laboratory and geological data confirming the intrinsic multidisciplinarity of the gas hydrate studies. The study areas are (1) Arctic, (2) Brazil, (3) Chile and ...
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Lucía Villar-Muñoz, Iván Vargas-Cordero, Joaquim P. Bento, Umberta Tinivella, Francisco Fernandoy, Michela Giustiniani, Jan H. Behrmann and Sergio Calderón-Díaz
Large amounts of gas hydrate are present in marine sediments offshore Taitao Peninsula, near the Chile Triple Junction. Here, marine sediments on the forearc contain carbon that is converted to methane in a regime of very high heat flow and intense rock ...
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Michela Giustiniani, Umberta Tinivella, Chiara Sauli, Bruno Della Vedova
Pág. 78 - 86
The theoretical gas hydrates stability zone (GHSZ) in the Ross Sea area was evaluated by mean of a
steady state simple approach by using bathymetric data, sea bottom temperature, a variable geothermal gradient and
assuming that the natural gas is methane...
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Iván de la Cruz Vargas Cordero, Umberta Tinivella, Lucía Villar Muñoz, Michela Giustiniani
Pág. 263 - 274
In this study one seismic section offshore Chiloé Island was analyzed to better define the seismic character
of the hydrate-bearing sediments. The velocity analysis was used to estimate the gas-phase concentration and relate it to
the geological features...
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Maria Filomena Loreto, Umberta Tinivella, Flavio Accaino and Michela Giustiniani
A gas hydrate reservoir, identified by the presence of the bottom simulating reflector, is located offshore of the Antarctic Peninsula. The analysis of geophysical dataset acquired during three geophysical cruises allowed us to characterize this reservoi...
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