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Sudbury igneous complex
Suitability of surficial media for Ni–Cu–PGE exploration in an established mining camp: a case study from the South Range of the Sudbury Igneous Complex, Canada
High-Grade Magmatic Platinum Group Element-Cu(-Ni) Sulfide Mineralization Associated with the Rathbun Offset Dike of the Sudbury Igneous Complex (Ontario, Canada)
Cathodoluminescence and trace-element chemistry of quartz from Sudbury offset dikes: Observations, interpretations, and genetic implications
Genetic Relationship Between Postcratering Dynamics and Footwall Deposit Formation at Sudbury, Ontario, Canada: Importance for Sulfide Ore Exploration
Shock metamorphic features in mafic and ultramafic inclusions in the Sudbury Igneous Complex: Implications for their origin and impact excavation
Decoupling of Zr-Hf during contact metamorphic anatexis of metabasalts and timing of zircon growth, Sudbury, Canada
The formation of large neoblasts in shocked zircon and their utility in dating impacts
Mineralogical And Geochemical Characteristics Of Sudbury Breccia Adjacent To Footwall Cu-Ni-PGE Sulfide Veins and Structures In The Creighton and Coleman Deposits
Dendrochronology in mineral exploration: developing tools to see through anthropogenic impacts
Inductive electromagnetic data interpretation using a 3D distribution of 3D magnetic or electric dipoles
New Feldspar Lead Isotope and Trace Element Evidence from the Sudbury Igneous Complex Indicate a Complex Origin of Associated Ni-Cu-PGE Mineralization Involving Underlying Country Rocks
Sulfide-silicate textures in magmatic Ni-Cu-PGE sulfide ore deposits: Disseminated and net-textured ores
Reconstructing the Geochemical Signature of Sudbury Breccia, Ontario, Canada: Implications for Its Formation and Trace Metal Content
Differentiated impact melt sheets may be a potential source of Hadean detrital zircon: COMMENT
Differentiated impact melt sheets may be a potential source of Hadean detrital zircon: REPLY
Differentiated impact melt sheets may be a potential source of Hadean detrital zircon
The nature and origin of the Garson Member of the Onaping Formation, Sudbury impact structure, Canada
The 1.85 Ga Sudbury impact structure is widely accepted to be the erosional remnant of a tectonized 200- to 250-km-diameter multiring basin. The Garson Member of the Onaping Formation in the Whitewater Group immediately overlies the coherent impact melt sheet—the so-called Sudbury igneous complex. It is of particular interest because it is poorly characterized, and its formational history is not well understood. The Garson Member is up to 500 m thick and is restricted locally, occurring along a 25 km strike length over the southeastern lobe of the Sudbury igneous complex. Detailed mapping and sampling of the Garson Member indicate that the dominant clast type is quartzite (>99%), with a few granite and quartz arenite clasts, and with a large range in clast shape and size. Partially annealed, decorated planar deformation features in quartz grains occur within the quartzite clasts, providing evidence for shock metamorphism. This, accompanied by the recrystallized, but equigranular nature of the groundmass, suggests that the Garson Member originated as a clast-rich impact melt rock. Geochemical analysis suggests a close relationship between the Garson Member and the so-called Onaping intrusion. The Garson Member and the Onaping intrusion, which has recently been interpreted as the remnants of the roof rocks of the Sudbury igneous complex, are located within the same stratigraphic context of the impact structure. We suggest, therefore, that the Garson Member and the Onaping intrusion share a similar origin as roof rocks to the Sudbury igneous complex, and they are, therefore, not part of the Whitewater Group but rather the Sudbury igneous complex.