CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
15 Sweden (Nörrbotten County) 67.27.46 N -- 022.03.11 E Junosuando; Junosuando Södra Fe
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-04
   
Deposit name(s): Junosuando; Junosuando Södra
Political location(s): Sweden; Province or state: Nörrbotten County; Nearest community: Gällivare (70 km NE)
Deposit clan (type): Iron Skarn-type
Deposit (sub) types: Junosuando and Nya Isovaara regarded as metasomatic skarn iron deposits, and the other 4 deposits in the 8 km long zone as metamorphosed banded iron ore deposits; 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 status: closed; Size category: 28 Mt
Geologic province: Svecofennian Orogen
Geologic subprovince: Northern Svecofennian
Geologic district: Masugnsbyn (Ore District)
Commodities: Fe
Mineralization styles: disseminated; massive
Geological ages: Late Paleoproterozoic (mineralization)
Late Paleoproterozoic (host rocks)
Host rocks: (1) metamorphic; metasedimentary schist (graphitic schist on the hanging wall, associated with felsic and mafic volcanics and carbonates); Depositional setting: continental
Individual lithologies:skarn
Host rock stratigraphy:Leptite Formation

(2) intrusive; granite suite (footwall rock; intrusive into graphitic schist); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: continental; Metamorphic grade: none
Host rock stratigraphy:Perthite Granite
Related igneous rocks: (1) intrusive; granite suite (perthitic granite); Initials: granite ; Magma series: calc-alkaline; Depositional setting: continental
Alteration signatures: skarn: diopside, tremolite, actinolite and calcite; What was altered: calcareous metasediments
scapolitization: scapolite ; What was altered: calcareous metasediments
albitization: albite; What was altered: feldspar
biotitization: biotite; What was altered: mafic silicates
serpentinization: serpentine; What was altered: mafic silicates
Mineralogy: (alteration): pyrite, pyrrhotite, tremolite, actinolite, diopside, phlogopite, serpentine
(gangue): calcite
(mineralization): magnetite
Deposit shape: tabular
Deposit dimensions:length: 3 kilometres
width: 100 metres
depth: 300 metres
Qualified comments: (Applies to: discovery and development) Discovered in 1642; among the first known iron deposits in Nörrbotten; production of 0.1 Mt from 1644 to 1700; resources of 27.9 Mt averaging 32.3 % Fe, 1.9 % S and 0.08 % Cu; exploration since 1920.
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.

Estimate date: 1700; 27.9 million metric tons ore; Combined with production?: yes; Provisional entry?: yes
Grade-commodity information:Fe: 32.3 percent
Cu: 0.08 percent
P: 0.024 percent
S: 1.9 percent
Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email
Percent weights allocated to deposit: 100.0%

Generated 2015-03-04 14:16:39 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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