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): |
Leveäniemi |
Political location(s): |
Sweden; Province or state: Nörrbotten County; Nearest community: Svappavaara (3 km SW) |
Deposit clan (type): |
Kiruna-type |
Deposit (sub) types: |
stratiform ore body in volcano-sedimentary sequence, with some ore dykes; preserved in a synform within granite; 4 ore types: main magnetite-rich, minor calcite-rich, hematitized ore and ore breccia; 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. ore breccia zone surrounds massive ore of 3 other ore types; it is up to 100 m thick and averages 35 % Fe; ore occurs as schlieren forming an irregular net-work with fragments of host volcanics ; Reference: Frietsch, R., 1977: The Iron Ore Deposits in Sweden; in 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 (Text and Figures), Edited by Walther, H. W.; Zitzmann, A., 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 I, 418 p, p. 279 - 293 |
Deposit status: |
past producer; Size category: 420 Mt; Status comments: discovered in 1897; exploration 1957 to 1963; 18 m overburden; open pit started in 1964, pellet plant in 1969; mine closed in 1982; pit 1250 x 950 x 300 m; produced 57 Mt ore grading 63 % Fe, 0.4 % P |
Geologic province: |
Svecofennian Orogen |
Geologic subprovince: |
Northern Svecofennian |
Geologic district: |
Svappavaara (Ore District) |
Commodities: |
Fe; P |
Mineralization styles: |
massive; breccia; replacement |
Geological ages: |
Late Paleoproterozoic (mineralization) Late Paleoproterozoic (host rocks) |
Tectonic setting: |
continental platform-foreland; convergent; Formal name: late Svecofennian arc (host rocks) |
Coincident features: |
stratification in host sequence (host volcanic sequence similarto the Kiruna Mine Series); Coincident feature name: Kiruna Porphyries |
Regional tectonic structure: |
a synformal structure open to the north (within the Lina-type granite pluton; orebody folded with the host strata) |
Host rocks: |
(1) volcanic; felsic volcanic rocks (red leptite, albite porphyrite and sericite schist); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: continental arc; Metamorphic grade: greenschist-amphiboliteExternal host rock forms: | intercalated flows and volcaniclastic sediments | Host rock protoliths: | rhyolitic volcanics (equivalents of Kiruna Porphyries; texture mostly porphyritic); Host rock protolith name: Porphyry-Leptite Formation | Internal host rock structures: | porphyritic, fine grained granular and gneissic | Individual lithologies: | rhyolite (variably deformed and metamorphosed; referred to as 'leptite' in older literature) | Host rock stratigraphy: | Porphyry-Leptite Formation |
(2) sedimentary; conglomerate (part of the host volcanic sequence); Depositional setting: continental arc; Metamorphic grade: greenschist-amphiboliteHost rock stratigraphy: | Conglomerate |
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Country rocks: |
(1) diabase; (post-mineralization dykes); Country rock name: Metabasites; Metamorphic grade: greenschist-amphibolite (2) granite; (post-mineralization intrusive); Country rock name: Lina Granite; Metamorphic grade: none |
Metallogenic signatures: |
Fe-P |
Alteration signatures: |
skarn: diopside; What was altered: calcareous beds and feldspar in volcanics albitization: albite; What was altered: feldspars in host volcanic rocks hematization: hematite; What was altered: magnetite |
Mineralogy: |
(alteration): tremolite, diopside, biotite, muscovite (gangue): calcite, dolomite, quartz (mineralization): magnetite, apatite, actinolite |
Deposit shape: |
tabularDeposit dimensions: | strike length: 1,500 metres width: 600 metres length down-dip: 550 metres |
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References: |
Anonymous, 2000 |
Swedish Database of Mineral Deposits |
Email |
Frietsch, R., 1977 |
The Iron Ore Deposits in Sweden |
in 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 (Text and Figures), Edited by Walther, H. W.; Zitzmann, A., 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 I, 418 p, p. 279 - 293 |
Walther, H. W.; Zitzmann, A. Editor(s)), 1977 |
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 (Text and Figures) |
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 I, 418 p. |
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. |
Estimate date: 1982; 364.651 million metric tons ore; Combined with production?: yes; Provisional entry?: yesGrade-commodity information: | Fe: 63 percent S: 0.1 percent | Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email Percent weights allocated to deposit: 100.0% |