CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
11 Sweden (Nörrbotten County) 67.22.28 N -- 023.17.37 E Sahavaara Stora; Stora Sahavaara Fe
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-04
   
Deposit name(s): Sahavaara Stora; Stora Sahavaara
Political location(s): Sweden; Province or state: Nörrbotten County; Nearest community: Kaunisvaara (3 km WSW)
Deposit clan (type): Iron Skarn-type
Deposit (sub) types: stratiform sheets and lenses in assemblage of phyllite, marl, graphytic shale and carbonate; iron oxides with skarn minerals; massive and disseminated ore; 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.
stratiform; synsedimentary iron oxide deposition across a wide spectrum of siliceous and carbonate environment, followed by regional metamorphism; regionally grades into skarn-type iron oxide deposits; Reference: Carlon, C. J., 2000: Iron Oxide Systems and Base Metal Mineralisation in Northern Sweden; Section Eurasia and Africa, in Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective, Volume 1, Edited by Porter, T. M., Australian Mineral Foundation, Adelaide, Australia, PGC Publishing, Adelaide, 349 p, p. 283 - 296
Deposit status: significant prospect; Size category: 82 Mt
Geologic province: Svecofennian Orogen
Geologic subprovince: Northern Svecofennian
Geologic district: Kaunisvaara (Ore District)
Commodities: Fe
Mineralization styles: massive; disseminated
Geological ages: Late Paleoproterozoic (mineralization)
Late Paleoproterozoic (host rocks)
Regional tectonic structure: anticline, major (trend N to NE; more than 20 km in length; limbs dip 50 to 65°)
Host rocks: (1) sedimentary; sandstone (sandstone metamorphosed to quartzite); Depositional setting: continental; Metamorphic grade: lower amphibolite
(2) sedimentary; mudstone (interbedded with marl and sandstone); Depositional setting: continental; Metamorphic grade: greenschist-amphibolite
(3) sedimentary; mudstone-carbonate-sandstone (graphitic shale interbedded with marl and sandstone)
Individual lithologies:shale (graphitic)
marl
sandstone
Metallogenic signatures: Fe-Cu
Alteration signatures: skarn: diopside, tremolite; What was altered: calcareous material
phyllitization: biotite; What was altered: mafic silicates
graphitization: graphite; What was altered: carbonaceous matter in shale
serpentinization: serpentine; What was altered: mafic silicates
Mineralogy: (alteration): serpentine
(mineralization): magnetite, pyrite, chalcopyrite, pyrrhotite, phlogopite, diopside, tremolite, actinolite, graphite
Deposit shape: tabular
Deposit dimensions:length: 1.3 kilometres
width: 40 metres
depth: 400 metres
Qualified comments: (Applies to: discovery and development) Discovered in 1918; explored during 1961-1971; resources of 82 Mt of ore to a depth of 400 m; average grade: 41 % Fe, 0.1 % P, 0.08 % Cu and 2.5 % S; no mining; 5 km SSW of 68.5 Mt Tapulivuoma deposit. One of the 6 deposits in a 20x1 km, NNE-trending zone of metasediments; from N to S: Palotieva, Tapulivuoma, Ruutijärvi, Södra Sahavaara, Stora Sahavaara, Suksivuoma and Karhujärvi; dip 50-65° W or NW.
References:
Anonymous, 2000
Swedish Database of Mineral Deposits
Email

Carlon, C. J., 2000
Iron Oxide Systems and Base Metal Mineralisation in Northern Sweden
Section Eurasia and Africa, in Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective, Volume 1, Edited by Porter, T. M., Australian Mineral Foundation, Adelaide, Australia, PGC Publishing, Adelaide, 349 p, p. 283 - 296

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.

82 million metric tons ore; Combined with production?: no; Provisional entry?: yes
Grade-commodity information:Fe: 41 percent
Cu: 0.08 percent
P: 0.07 percent
S: 2.5 percent
Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email
Percent weights allocated to deposit: 100.0%

Generated 2015-03-04 14:16:55 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada