Classification and Key Characteristics of VMS Deposits

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Sturgeon LakeBimodal mafic 1BPyroclasticdominatedCaldron sequence:•base of sequencesubmarineandsubaerial basalt•episodic calderacollapse:heterolithicdebris flow•deposits formed atonset of felsicvolcanism•cryptodome formedafter deposits•Andesitic HW
Mattabi deposit: Five stratiform lenses, banded sphalerite-galena pyrite,minor stringer zone, late cpy-asp-tetrahedrite zone
Page 2 and 3: Contributors (Alphabetical)• D. A
Page 4 and 5: Sources of Information• Studies o
Page 6 and 7: VMS Model• What are the key geolo
Page 8 and 9: HydrothermalEscapePrecipitationSite
Page 11 and 12: Five VMS Lithotectonic Settings•1
Page 13: 2: VMS Deposits: Zinc-Lead-Rich Dep
Page 16 and 17: Excellent Oceanic BackarcPotential
Page 18 and 19: Median Metal Content (Millions of T
Page 20 and 21: Metal Correlation MatrixCu Pb Zn Au
Page 22 and 23: Bimodal mafic: Comparison of Subtyp
Page 24 and 25: Noranda Cross Section
Page 26 and 27: • Snow Lake- two major VMSepisode
Page 28 and 29: Typical Noranda-type Deposit•Sulf
Page 30 and 31: Sturgeon Lake District: Example of
Page 34 and 35: Type 2: Mafic-Backarc (ophiolite)
Page 36: Type 3: Pelitic - Mafic Backarc (Be
Page 39: Type 4: Bimodal felsic-dominated•
Page 43 and 44: Type 5: Felsic siliciclastic hosted
Page 46 and 47: Geologyof theBrunswickDistrict
Page 48: Summary• Cu-rich deposits form in

Classification and Key Characteristics of VMS Deposits

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