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TitleVolcanic stratigraphy, structural geology, and gold mineralization in the Wolverine-Doris corridor, northern Hope Bay volcanic belt, Nunavut
AuthorSherlock, R L; Carpenter, R L; Quang, C
Source7, 2003, 11 pages, (Open Access)
PublisherNatural Resources Canada
Mediaon-line; digital; CD-ROM
RelatedThis publication is contained in the following publications
File formatpdf
NTS77A/03; 77A/06
AreaHope Bay; 2
Lat/Long WENS-107.0000 -106.5000 68.5000 68.0000
Subjects9; regional geology; economic geology; structural geology; gold; mineralization; mafic volcanic rocks; felsic volcanic rocks; volcanic rocks; igneous rocks; quartz veins; structural features; folds; Archean; greenstone belts; basalts; dykes; mafic intrusive rocks; gabbros; intrusive rocks; deformation; tholeiites; Hope Bay Volcanic Belt; Doris Suite; Wolverine-Doris corridor; timing; 6; Precambrian
Illustrationssketch maps; photographs; cross-sections
Released2003 03 14
AbstractThe northern part of the Hope Bay volcanic belt is a mainly bimodal volcanic assemblage. The mafic suite includes intercalated Mg- and Fe-tholeiitic basalts with textural variations. The felsic suite includes dacitic volcaniclastic rocks and coherent flows or sills, with subvolcanic intrusions. The Windy lake felsic rocks show a gradation to more proximal phases to the north. There is good evidence for a
synvolcanic structure that juxtaposed different volcanic suites and is capped by a sedimentary package without any obvious offset. Gold mineralization in the area is variable in terms of alteration and morphology, but all types originated during a progressiveD2 event. Synvolcanic mineralization is also recognized at lithological contacts, mainly within the felsic volcanic suites.