CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
255 Canada (Nunavut) 69.41.32 N -- 076.43.33 W Sample 12 - 2.2 km NE Cake Lake Au
 
Database name: Canadian Iron Formation
Custodial agency: Geological Survey of Canada
Compilers: G. A. Gross and E. M. Hillary
Release date: 2014-10-01
   
Deposit name(s): Sample 12 - 2.2 km NE Cake Lake (occurrence)
Political location(s): Canada; Province or state: Nunavut; Subprovince or locality: Central Baffin Island
NTS map data: 037C09 (Eqe Bay)
Deposit clan (type): iron formation
Deposit (sub) types: Algoma type
Deposit status: anomaly-geochemical
Geologic province: Canadian Shield
Geologic subprovince: Rae craton
Deposit object located: sample location
Commodities: Au
Geological ages: Archean (host rocks)
Host rocks: (1) sedimentary; iron formation; Metamorphic grade: amphibolite - lower; Component: mineralization zone
External host rock forms:tabular sedimentary body
Internal host rock structures:banding
Individual lithologies:iron formation - oxide
Host rock stratigraphy:Mary River group
Related igneous rocks: (1) volcanic; mafic-intermediate volcanic rocks
Individual lithologies:andesite
basalt
Qualified comments: (Applies to: rock analysis and sample assays) 324 ppb Au in oxide facies iron-formation

(Applies to: mineralization) Au mineralization in oxide facies iron-formation.

(Applies to: property geology) The iron-formations are in intermediate-mafic volcanics of Mary River Group of Archean age.

(Applies to: metamorphism) The low grade Archean metamorphism of volcanic rocks and iron-formations was superimposed by Paleoproterozoic low pressure high temperature metamorphism.
Links to other databases: NUMIN; Key value: 037CNE0016
Geophysical-chemical signature: Signature type: Airborne Magnetometer; Response type: positive (strong)
Signature type: Ground Gravity; Response type: positive (strong)
Signature type: Ground Magnetometer; Response type: positive (strong)
Samples data: (1) Source ID: sample location-12; Collector: Bethune and Scammel
Commodities and grades in order of importance:Au: 324 ppb (fire assay)
Ag: 3 ppm (ICP)
As: 970 ppm (ICP)
Reference number: Bethune, K. M.; Scammel, R. J., 1997: Precambrian Geology, Koch Island area, District of Franklin, Northwest Territories, (parts of NTS 37C); Geological Survey of Canada, Open File 3391, Scale 1:50000
References:
Bethune, K. M.; Scammel, R. J., 1997
Precambrian Geology, Koch Island area, District of Franklin, Northwest Territories, (parts of NTS 37C)
Geological Survey of Canada, Open File 3391, Scale 1:50000

de Kemp, E. A.; Scott, D. J., 1998
Digital geoscience compilation of North Baffin Island and North Melville Peninsula, Northwest Territories
Geological Survey of Canada, Open File, CD-ROM


Generated 2014-10-01 11:15:15 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada