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TitleMaquereau Group lavas, southern Gaspésie, Quebec Appalachians
DownloadDownload (whole publication)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorBédard, J H; Wilson, C
SourceEastern Canada and national and general programs/Est du Canada et programmes nationaux et généraux; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1994-D, 1994 p. 143-154, Open Access logo Open Access
Alt SeriesQuebec Department of Energy and Natural Resources, Contribution 93-5110-24
PublisherNatural Resources Canada
Mediapaper; on-line; digital
RelatedThis publication is contained in Geological Survey of Canada; (1994). Eastern Canada and national and general programs, Geological Survey of Canada, Current Research no. 1994-D
File formatpdf
AreaGaspésie; Appalachians
Lat/Long WENS-65.0000 -64.5000 48.5000 48.2500
Subjectsigneous and metamorphic petrology; geochemistry; volcanic rocks; basalts; tholeiites; andesites; igneous rocks; depositional environment; field relations; metamorphic facies; greenschist facies; major element analyses; trace element analyses; analyses; geochemical analyses; tectonic environments; lithology; metamorphism; deformation; Maquereau Group; Cambrian
Illustrationssketch maps; analyses
Released1994 02 01
AbstractMost Maquereau Group lavas are tholeiitic basalts to ferro-andesites that exhibit an Fe-Ti-enrichment trend. Subordinate alkaline basalts are generally enriched in TiO2, P2O5, Nb and light rare-earth elements. Most major and trace element paleotectonic discriminants do not favour an arc-related environment. An intra-continental rift, or an incipient spreading ridge environment are most consistent with the geochemical data and field relationships. Many Maquereau lavas contain pyrite+chalcopyrite and have high Cu-contents; they thus represent a plausible source rock for the Cu-sulphide veins in the area.

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