Overview of Results from the Greenstone ... - Geology Ontario

3. The geophysical subproject functioned as an adjunct to the geological subprojects. Custom plots of
aeromagnetic data were used to trace marker units. Potential field inversion techniques were applied
to both magnetic and gravity data to constrain the dip of stratigraphy and major structures to aid in
regional-scale interpretation.
4. The VMS-related projects emphasized volcanological and stratigraphic mapping associated with
VMS mineralization in the Kidd–Munro, Tisdale and Blake River assemblages. Work was conducted
at both the deposit scale and the assemblage scale.
5. The Ni-Cu-PGE-related project emphasized volcanological and stratigraphic mapping associated
with komatiite-associated mineralization within the Tisdale assemblage in the Shaw Dome area. The
major contribution by the Architecture Project in support of this project involved geochronological
data and three-dimensional (3D) geophysical inversions. This subproject, combined with the regional
bedrock mapping carried by the OGS as in-kind contribution to the Greenstone Architecture Project,
has improved knowledge of the stratigraphic, structural and volcanic architecture of Cu-Ni-PGE
mineralization in the Shaw Dome area.
Figure 1. Assemblage map for the Ontario portion of the Abitibi greenstone belt with location of the study area, subproject areas
(Au represents gold subprojects; BM, base metal subprojects and Int, intrusion subprojects) and stratigraphic locations discussed
in the text. Abbreviations: KB, Kenogamissi batholith; RAB, Ramsey–Algoma batholith; RLB, Round Lake batholith.
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