CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
4 Sweden (Nörrbotten County) 67.41.48 N -- 019.09.50 E Tjårrojåkka Cu Cu
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-04
   
Deposit name(s): Tjårrojåkka Cu
Political location(s): Sweden; Province or state: Nörrbotten County; Nearest community: Kiruna (60 km 250°)
Deposit clan (type): Olympic Dam-type
Deposit (sub) types: veins and disseminations mainly in tuffite associated with intermediate to felsic volcanic sequence; Fe oxide-Cu-Au mineralization with potash feldspar and scapolite as alteration minerals; Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email
Deposit status: prospect; Size category: 13 Mt; Status comments: average grade 0.43 % Cu; higher grade tonnage of 3.23 Mt at 087 % Cu; located 400 m WNW of Tjårrojåkka Fe deposit (DEPNO. 22) containing resources of 52.6 Mt averaging 51.5 % Fe and 0.8 % P; no mining
Geologic province: Svecofennian Orogen
Geologic subprovince: Northern Svecofennian
Geologic district: Ekströmsberg (Ore District)
Commodities: Cu
Mineralization styles: disseminated; veinlets
Geological ages: Late Paleoproterozoic (mineralization)
Late Paleoproterozoic (host rocks)
Host rocks: (1) volcanic; unclassified volcanic rocks (tuffite)
Internal host rock structures:tuffite
Individual lithologies:tuffite
Metallogenic signatures: Fe-Cu-Au
Alteration signatures: potassic alteration: potash feldspar; What was altered: feldspar
scapolitization: scapolite ; What was altered: feldspars
Mineralogy: (mineralization): chalcopyrite, magnetite, bornite, pyrite, hematite, chalcocite, covellite, gold
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

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.

3.226 million metric tons ore; Combined with production?: no; Provisional entry?: yes
Grade-commodity information:Cu: 0.87 percent
Reference: Anonymous, 2000: Swedish Database of Mineral Deposits; Email
Percent weights allocated to deposit: 100.0%

Generated 2015-03-04 14:17:01 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada