Database name: |
World Sediment-Hosted Cu Deposits |
Compilers: |
R. V. Kirkham, J. J. Carriere, A. Rafer, and P. Born |
Release date: |
2015-01-27 |
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Deposit name(s): |
Kona Dolomite; Marquette Area |
Political location(s): |
United States; Province or state: Michigan; Subprovince or locality: Marquette Trough - eastern end |
Deposit clan (type): |
sediment-hosted copper |
Deposit (sub) types: |
paralic marine; low grade in argillite and very fine grained qtzite |
Commodities: |
Cu |
Geological ages: |
Aphebian (host rocks) |
Host rocks: |
(1) sedimentary; quartziteIndividual lithologies: | quartzite (dolomitic - pink) | Host rock stratigraphy: | Lower Quartzite Member, Wewe Formation |
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Qualified comments: |
(Applies to: miscellaneous comments) low grade in argillite & very fine grained qtzite; near base of Kona dolomite; quartzite is bounded top & bottom by green argillite |
References: |
Clark, J. L., 1974 |
Distribution and Mode of Occurrence of Copper Sulfides in the Kona Dolomite, Marquette County, Michigan |
in Institute on Superior Geology, 20th Annual Meeting Sault Ste Marie (May 1-5), Edited by Giblin, P. E.; Bennett, G.; Leahy, E. J., Report, Institute on Superior Geology, 149 p, p. 9 - 9 |
Taylor, G. L., 1972 |
Stratigraphy, Sedimentology and Sulphide Mineralization of the Kona Dolomite |
Ph.D. Thesis, Michigan Technological University, 112 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: 1986; 100,000,000 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: estimated minimum resourceGrade-commodity information: | Cu: 0.5 percent | Reference: Anonymous, 1986: Personal Communication, March 1986 Percent weights allocated to deposit: 100.0%
Estimate date: 1978; 907,184,768 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: drill indicated resourceGrade-commodity information: | Cu: 0.3 percent | Reference: Anonymous, 1978: Copper Resources of Northern Michigan; Report Percent weights allocated to deposit: 100.0% |