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): |
Lappmalmen |
Political location(s): |
Sweden; Province or state: Nörrbotten County; Nearest community: Kiruna (3 km NNE) |
Deposit clan (type): |
Kiruna-type |
Deposit (sub) types: |
one of the apatite-rich, hematite-magnetite stratabound deposits of 'Per Geiger' group that includes Rektorn, Nukutus, Henry and Haukivaara deposits; massive and banded, associated breccia-fillings; Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email |
Deposit status: |
significant prospect; Size category: 100 Mt; Status comments: discovered in 1960s; blind ore body from 400 to 700 m depth; 2 km long, up tp 200 m thick; trend NNE, dip 70° E; drill indicated resources; ore grade 43 % Fe and 4.5 % P; additional potential at depth |
Geologic province: |
Svecofennian Orogen |
Geologic subprovince: |
Northern Svecofennian |
Geologic district: |
Kiruna (Ore District) |
Commodities: |
Fe; P |
Mineralization styles: |
massive; banded |
Geological ages: |
Late Paleoproterozoic (mineralization) Late Paleoproterozoic (host rocks) |
Coincident features: |
bedding in host sequence (monoclinal sequence; trend N to NNE, dip moderate to steep to the east) |
Host rocks: |
(1) volcanic; felsic volcanic rocks (quartz porphyries; in part subvolcanic); Magma series/sedimentary package/metamorphic group: calc-alkaline; Depositional setting: continental; Metamorphic grade: greenschistHost rock stratigraphy: | Porphyries |
(2) sedimentary; sandstone-conglomerate (underlies the porphyries); Depositional setting: continental; Metamorphic grade: greenschistHost rock stratigraphy: | Hauki Sandstone |
(3) sedimentary; mudstone-carbonate-sandstone (overlies the porphyries); Depositional setting: continental; Metamorphic grade: greenschistIndividual lithologies: | shale (graphitic) marl sandstone | Host rock stratigraphy: | Vakko sediments |
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Mineralogy: |
apatite (alteration): muscovite, albite (gangue): quartz, calcite, tourmaline (mineralization): hematite, magnetite |
Deposit shape: |
tabularDeposit dimensions: | strike length: 2,000 metres thickness: 200 metres length down-dip: 300 metres |
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References: |
Anonymous, 2000 |
Swedish Database of Mineral Deposits |
Email |
Parák, T., 1975 |
The Origin of Kiruna Iron Ores |
Sveriges Geologiska Undersökning, Serie C, Arsbok 69, NR 1, Geological Survey of Sweden, Publication code 709, 209 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. |
100 million metric tons ore; Combined with production?: no; Provisional entry?: yesGrade-commodity information: | Fe: 43 percent | Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email Percent weights allocated to deposit: 100.0% |