CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
97 United States (Montana) 48.04.30 N -- 115.39 W Rock Lake (U.S.Borax) Cu; Ag
 
Database name: World Sediment-Hosted Cu Deposits
Compilers: R. V. Kirkham, J. J. Carriere, A. Rafer, and P. Born
Release date: 2015-01-27
   
Deposit name(s): Rock Lake (U.S.Borax)
Political location(s): United States; Province or state: Montana; Nearest community: Noxon (8 km E)
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: continental redbed; in lower quartzite member of the Revett formation
Commodities: Cu; Ag
Geological ages: Helikian (host rocks)
Tectonic setting: continental rift-graben; divergent (host rocks)
Host rocks: (1) sedimentary; quartzite-siltstone
Individual lithologies:quartzite
siltite
quartzite (silty)
Host rock stratigraphy:Revett Formation, Ravalli Group, Belt Supergroup
Qualified comments: (Applies to: miscellaneous comments) in lower quartzite member of the Revett formation; mostly as fine dissem on bedding & shear planes & as fracture coatings; host rocks metamorphosed to lower greenschist facies
References:
Banister, D. P.; Weldin, R. D.; Zilka, N. T.; Schmauch, S. W., 1981
Economic Appraisal of the Cabinet Mountains, Wilderness Lincoln and Sanders Counties Montana
United States Geological Survey Bulletin, Volume 1501-, p. 53 - 77

Clark, A. L., 1971
Strata-Bound Copper Sulphides in the Precambrian Belt Supergroup, Northern Idaho and Northwestern Montana
in Papers and Proceedings of the Seventh General IMA-IAGOD Meeting, Tokyo-Kyoto, 27 August-2 September, 1970, Edited by Takeuchi, Y.; Tatsumi, T.; Takenouchi, S.; Miyazawa, T.; Kanehira, K.; Sekine, Y.; Kato, A.; Fuji, T.; Isihara, S., Special Issue, Society of Mining Geologists of Japan, International Association on the Genesis of Ore Deposits (IAGOD), Mining Geology, 3, 500 p, p. 261 - 267

Ryan, P. C.; Buckley, S., 1993
Sedimentation, Stratabound Cu-Ag Mineralization and Syndepositional Tectonics in the Revett Formation, Flathead Indian Reservation, Western Montana
in Belt Symposium III, Edited by Berg, R. B., Special Publication, Montana Bureau of Mines and Geology, 112, 295 p, p. 278 - 289

Trammell, J., 1970
Stratabound Base Metal Sulfides in the Belt Supergroup of Montana
Section Structural Geology and Economic Geology, in Geological Society of America, Rocky Mountain Section, 23rd Annual Meeting, May 1970, Edited by Anonymous, Abstracts With Programs, Geological Society of America, V2, No 5, p. 352 - 352

United States Geological Survey; United States Bureau of Mines Editor(s)), 1981
Mineral Resources of the Cabinet Mountains, Wilderness, Lincoln and Sanders Counties, Montana
Bulletin, United States Geological Survey, 1501, 77 p.

Wells, J. D.; Lindsey, D. A.; Van Loenen, R. E., 1981
Geology of the Cabinet Mountains Wilderness, Lincoln and Sanders Counties, Montana
1501-A, in Mineral Resources of the Cabinet Mountains, Wilderness, Lincoln and Sanders Counties, Montana, Edited by United States Geological Survey; United States Bureau of Mines, Bulletin, United States Geological Survey, 1501, 77 p, p. 9 - 20

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: 1984; 130,416,880 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: geological resource
Grade-commodity information:Cu: 0.68 percent
Reference: Anonymous, 1984: Sanders County Ledger; Sanders County Ledger, June 21 issue, p. 6
Percent weights allocated to deposit: 100.0%


Estimate date: 1984; 130,416,880 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: resource - 12000Ft long, 6000 Ft wide, 27 Ft thick
Grade-commodity information:Cu: 0.68 percent
Reference: Balla, J., 1984: Personal Communication, September 20, 1984
Percent weights allocated to deposit: 100.0%


37,829,604 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: drill indicated resource
Grade-commodity information:Cu: 0.93 percent
Reference: Hendricksen, T., 1987: Personal Communication
Percent weights allocated to deposit: 100.0%


26,580,512 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: drill indicated resource
Grade-commodity information:Cu: 0.49 percent
Reference: Hendricksen, T., 1987: Personal Communication
Percent weights allocated to deposit: 100.0%


Estimate date: 1984; 93,294,880 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: drill indicated resource
Grade-commodity information:Cu: 0.68 percent
Reference: Anonymous, 1984: Sanders County Ledger; Sanders County Ledger, June 21 issue, p. 6
Percent weights allocated to deposit: 100.0%
Associated group(s): U.S. Borax Noxon Project (3)

Generated 2015-01-27 17:18:22 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada