CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit group number Country Location Names Commodities
26 Sweden (Nörrbotten) 67.45.00 N -- 021.25.12 E Kuusi Nunasvaara Fe; Cu; Pb
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-03
   
Deposit group name(s): Kuusi Nunasvaara
Political location(s): Sweden; Province or state: Nörrbotten; Nearest community: Kiruna (60 km ESE)
Deposit clan (type): Iron Skarn-type
Deposit (sub) types: stratiform iron deposits in metasediments (Upper Schists) and greenstones of Vittangi Group; pyrite, pyrrhotite and chalcopyrite with magnetite; skarn-type alteration mineral assemblage; Reference: Zitzmann, A. (Editor(s)), 1978: The Iron Ore Deposits of Europe and Adjacent Areas: Explanatory Notes to the International Map of the Iron Ore Deposits of Europe, 1:2,500,000 (Lists and Tables); International Geological Congress, Commission for the Geological Map of the World, Subcommission for the Metallogenic Map of the World, Bundesanstalt fur Geowissenschaften und Rohstoffe, Postfach 51 01 53, D-3000 Hannover 51, Volume II, 386 p.
host graphitic shale may have inherent sulphides; iron oxides introduced and skarn minerals developed during mineralization; Reference: Zitzmann, A. (Editor(s)), 1978: The Iron Ore Deposits of Europe and Adjacent Areas: Explanatory Notes to the International Map of the Iron Ore Deposits of Europe, 1:2,500,000 (Lists and Tables); International Geological Congress, Commission for the Geological Map of the World, Subcommission for the Metallogenic Map of the World, Bundesanstalt fur Geowissenschaften und Rohstoffe, Postfach 51 01 53, D-3000 Hannover 51, Volume II, 386 p.
Deposit group status: significant prospect; Size category: 23.72 Mt; Status comments: Kuusi Nunasvaara 1, 2, 3 and 4 deposits are along a 3 km long N-trending zone; each deposit is about 500 m long and 20-30 m wide; total resources 23.72 Mt; ore contains 30.5 % Fe, 0.1 % P, 1.6 % S
significant prospect; Status comments: Kuusi Nunasvaara deposits are part of the Vittangi group of 11 deposits located along two belts about 10 km long; hosted by Vittangi Greenstone Group; discovered at turn of 20th century; no minining
Geologic province: Svecofennian Orogen
Geologic subprovince: Northern Svecofennian
Geologic district: Vittangi (Ore District)
Deposit object located: approximate centroid of the gr
Commodities: Fe; Cu; Pb
Geological ages: Late Paleoproterozoic (mineralization)
Late Paleoproterozoic (host rocks)
Coincident features: bedding in host strata (banded and massive ore distributed along the strata, with some disseminations around them); Coincident feature name: Vittangi Greenstone Group
intrusive contact (orebodies at the contact of granodiorite, which is intrusive into the Vittangi Greenstone Group); Coincident feature name: Granodiorite massif
Host rocks: (1) sedimentary; mudstone-carbonate-sandstone-chert (carbonate-graphitic shale associated with greenstones); Depositional setting: carbonate platform; Metamorphic grade: greenschist-amphibolite
Host rock stratigraphy:Vittangi Greenstone Group

(2) volcanic; mafic volcanic rocks (mafic volcanics associated with carbonate-graphitic shale); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: carbonate platform; Metamorphic grade: greenschist-amphibolite
Host rock stratigraphy:Vittangi Greenstone Group

(3) intrusive; granodiorite-tonalite suite (granodiorite pluton; the Vittangi iron deposits are located on two sides of the pluton); Depositional setting: carbonate platform; Metamorphic grade: greenschist
Metallogenic signatures: Fe-Cu
Alteration signatures: skarnification: diopside, tremolite, calcite; What was altered: carbonate-rich sediments
serpentinization: serpentine, talc; What was altered: mafic volcanics and tuffites
chloritization: chlorite; What was altered: mafic silicates
Mineralogy: (alteration): tremolite, actinolite, diopside, calcite, chlorite, serpentine, talc
(mineralization): magnetite, pyrite, pyrrhotite, chalcopyrite, galena
Deposit group shape: tabular
Deposit group dimensions:length: 500 metres
thickness: 30 metres
References:
Anonymous, 2000
Swedish Database of Mineral Deposits
Email

Zitzmann, A. Editor(s)), 1978
The Iron Ore Deposits of Europe and Adjacent Areas: Explanatory Notes to the International Map of the Iron Ore Deposits of Europe, 1:2,500,000 (Lists and Tables)
International Geological Congress, Commission for the Geological Map of the World, Subcommission for the Metallogenic Map of the World, Bundesanstalt fur Geowissenschaften und Rohstoffe, Postfach 51 01 53, D-3000 Hannover 51, Volume II, 386 p.

Resource data:
Disclaimer - Reserves/Resource Data

Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.

Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported.

23.72 million metric tons ore; Combined with production?: no; Provisional entry?: yes
Grade-commodity information:Fe: 30.5 percent
S: 1.56 percent
Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email
Percent weights allocated to camp: 100.0%
Associated deposit(s): Kuusi Nunasvaara 4 (39), Kuusi Nunasvaara 3 (40), Kuusi Nunasvaara 2 (41), Kuusi Nunasvaara 1 (42)

Generated 2015-03-03 11:24:43 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada