%0 Journal Article
%T Scientific results from the deepened Lopra-1 borehole, Faroe Islands: A reconnaissance study of fluid inclusions in fracture-filling quartz and calcite from the Lopra-1/1A well, Faroe Islands
%A Konnerup-Madsen
%A Jens
%J Geological Survey of Denmark and Greenland Bulletin
%D 2006
%I Geological Survey of Denmark and Greenland
%X Fracture-filling calcite and quartz from the Lopra-1/1A well (at 2380 m and 3543 m depth) contains both aqueous low-salinity fluid inclusions and hydrocarbon-dominated fluid inclusions. Microthermometry indicates that the aqueous fluids contain 0.2 to 1.4 equivalent weight% NaCl and occasionally contain traces of hydrocarbons. Homogenisation to liquid occurred between 90¡ãC and 150¡ãC. Modelling based on these fluid inclusion observations indicates that during burial the basaltic section was subjected to temperatures of 160¡ãC and 170¡ãC, occasional pressures of 600¨C700 bars and the simultaneous percolation of aqueous and hydrocarbon fluids. These fluid conditions may also be relevant to the formation of zeolite observed in the Lopra-1/1A well.
%K Basalts
%K Faroe Islands
%K fluid inclusions
%K hydrocarbons
%K veins
%K zeolites
%U http://www.geus.dk/publications/bull/nr9/nr9_p119-122.pdf