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TitleCurrent research part E: Cordillera and Pacific margin / Recherches en cours partie E: Cordillère et marge du Pacifique
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGeological Survey of Canada
SourceGeological Survey of Canada, Paper no. 88-1E, 1988, 297 pages, Open Access logo Open Access
Lang.English; French
Mediapaper; on-line; digital
RelatedThis publication contains the following publications
File formatpdf
Subjectstectonics; metallic minerals; igneous and metamorphic petrology; mineralogy; stratigraphy; structural geology; surficial geology/geomorphology; sedimentology; geophysics; economic geology; geochemistry; paleontology; geochronology; fossil fuels
Released1988 01 01; 2013 10 17
AbstractHadrynian through Mississippian strata of the Gataga area are involved in a northwest-trending fold and thrust belt. Stratiform barite and barite-sulphide mineralization in the black siliciclastics of the Lower part of the Earn Group has been mapped over a stratigraphic inter val of 400 m and over a continu­ous to semicontinuous strike length of 50 km. Five mineralized horizons have been identified, three of which contain significant barite and barite-sulphide accumulations. Intense/y deformed sulphide miner­alization is found at the Bear and Driftpile deposits. The structure is dominated by large northeastward­verging thrust panels along the western margins of the Gataga area and steeply east-dipping, west-verging thrust faults along the eastern margin. The Lower Earn Group siliciclastics are intense/y folded and fault­ed, hence thickness determinations are difficult and correlation of the mineralized intervals is hampered. Structural and stratigraphie analysis indicates that the stratiform barite and barite-sulphide mineraliza­tion was deposited in a Late Devonian half graben system that was inverted during Mesozoic contractional deformation.

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