Database name: |
World Fe-oxide+/-Cu-Au-U (IOCG) deposits |
Compilers: |
Sunil S. Gandhi |
Release date: |
2015-03-04 |
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Deposit name(s): |
Sahavaara Södra; Södra Sahavaara; Södra + Östra Sahavaara |
Political location(s): |
Sweden; Province or state: Nörrbotten County; Nearest community: Pajala (20 km NNW) |
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: 19.6 Mt |
Geologic province: |
Svecofennian Orogen |
Geologic subprovince: |
Northern Svecofennian |
Geologic district: |
Kaunisvaara (Ore District) |
Commodities: |
Fe; S |
Mineralization styles: |
disseminated; massive |
Geological ages: |
Late Paleoproterozoic (mineralization) Late Paleoproterozoic (host rocks) |
Coincident features: |
bedding in host strata |
Regional tectonic structure: |
anticline, major (trend N to NE; more than 20 km in length; limbs dip 50 to 65°) |
Host rocks: |
(1) metasomatic-hydrothermal; unclassified metasomatic rocks (carbonate skarn)Individual lithologies: | skarn |
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Metallogenic signatures: |
Fe |
Alteration signatures: |
skarn: diopside, tremolite; What was altered: calcareous sediments in host sequence serpentinization: serpentine; What was altered: silicates in mafic volcanics |
Mineralogy: |
(mineralization): magnetite, serpentine, phlogopite, diopside, tremolite, actinolite, pyrite, pyrrhotite |
Deposit shape: |
tabularDeposit dimensions: | strike length: 1,000 metres thickness: 15 metres depth: 260 metres |
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Qualified comments: |
(Applies to: discovery and development) Discovered in 1918; explored during 1961-'71; resources of 19.6 Mt to a depth of 260 m; average grade 32.1 % Fe, 0.04 % P, 0.8 % S and 0.05 % Cu; no mining; 2 km NNE of larger Stora Sahavaara 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. |
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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. |
19.6 million metric tons ore; Combined with production?: no; Provisional entry?: yesGrade-commodity information: | Fe: 32.1 percent Cu: 0.05 percent P: 0.04 percent S: 0.8 percent | Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email Percent weights allocated to deposit: 100.0% |