Formation History and Physical Properties of Sediments from the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope
Auteur : Sheng Dai
Date de publication : 2011
Éditeur : Elsevier
Nombre de pages : 12
Résumé du livre
Reports findings of synthesis of available geological information and surface temperature evolution in Alaska North Slope region. Biogenic and deeper thermogenic gases migrated through fault networks and preferentially invaded coarse-grained layers with high hydraulic conductivity and low gas entry pressures. Hydrate started forming before beginning of permafrost. Eventually permafrost deepened and any remaining free water froze, so that ice and hydrate may coexist at some elevations.