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): |
Tervaskoski N |
Political location(s): |
Sweden; Province or state: Nörrbotten County; Nearest community: Kiruna |
Deposit clan (type): |
Iron Skarn-type |
Deposit (sub) types: |
Tervaskoski E, N and S deposits are stratiform iron deposits similar to 8 others in the Vittangi Greenstone Group at the margin of a granodiorite intrusion; alteration typical of iron skarns; 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: |
significant prospect; Size category: 30 Mt; Status comments: Tervaskoski E, N and S deposits contain estimated 30 Mt, which is nearly 50 % of the known iron resources in the Vittangi ore district; average ore grade: 48 % Fe, 0.1 % P, 0.1 % Cu and 3 % S |
Geologic province: |
Svecofennian Orogen |
Geologic subprovince: |
Northern Svecofennian |
Geologic district: |
Vittangi (Ore District) |
Commodities: |
Fe; Cu |
Mineralization styles: |
stratiform massive magnetite layers; banded |
Geological ages: |
Late Paleoproterozoic (mineralization) Late Paleoproterozoic (host rocks) |
Coincident features: |
bedding in host strata (Stratiform massive and banded deposit); Coincident feature name: Marble-graphitic schists |
Host rocks: |
(1) metamorphic; metavolcanic gneiss (intermediate to felsic volcanics); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: continental; Metamorphic grade: amphibolite; Component: foot wallHost rock protoliths: | intermediate-felsic volcanic rocks | Individual lithologies: | skarn |
(2) sedimentary; mudstone-carbonate-sandstone-chert (Upper Schist: metasedimentary); Depositional setting: continental; Metamorphic grade: greenschist-amphiboliteIndividual lithologies: | carbonate sandstone chert sandstone | Host rock stratigraphy: | Vittangi Greenstone Group |
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Metallogenic signatures: |
Fe-Cu |
Alteration signatures: |
skarn: diopside, tremolite, actinolite and calcite; What was altered: calcareous sediments, volcanics serpentinization: serpentine, talc |
Mineralogy: |
(alteration): tremolite, actinolite, diopside, calcite, chlorite, serpentine, talc (gangue): pyrite, pyrrhotite (mineralization): magnetite |
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. |
30 million metric tons ore; Combined with production?: no; Provisional entry?: yesGrade-commodity information: | Fe: 48 percent Cu: 0.1 percent P: 0.05 percent S: 3 percent | Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email Percent weights allocated to deposit: 100.0% |