Database name: |
World Mississippi Valley-type deposits |
Custodial agency: |
Geological Survey of Canada |
Compilers: |
D. F. Sangster |
Release date: |
2015-02-06 |
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Deposit name(s): |
Southwest Sardinia District; Iglesias District |
Political location(s): |
Italy; Province or state: Sardinia |
Deposit clan (type): |
Mississippi Valley-type |
Deposit status: |
past producer |
Deposit object located: |
centroid of district |
Commodities: |
Zn; Pb; Ag |
Mineralization styles: |
discordant collapse breccia cement; concordant collapse breccia cement; fissure fill; disseminated |
Geological ages: |
Early Cambrian (host rocks) |
Tectonic setting: |
continental platform (host rocks) |
Host rocks: |
(1) sedimentary; carbonate; Depositional setting: Shallow-water carbonatesIndividual lithologies: | limestone dolostone |
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Mineralogy: |
sphalerite, galena, pyrite, barite, chalcopyrite, calcite |
References: |
Boni, M., 1985 |
Les Gisements de Type Mississippi Valley du Sud-Ouest de la Sardaigne (Italie): Une Synthese (Mississippi Valley Type Ore Deposits in Southwest Sardinia (Italy): A Synthesis) |
Chronique de la Recherche Miniere, p. 7 - 34 |
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Production data: |
750,000 metric ton lead metal; Provisional entry?: yes; Yearly or summary?: SGrade-commodity information: | Pb: 1.2 percent | Reference: Laznicka, P.; Wolf, K. H., 1981: Bibliography and Ore Occurrence Data, and Indexes Volumes 8 - 10; Volume 10, Chapter 2, Section Data on the Worldwide Distribution of Stratiform and Strata-Bound Ore Deposits, in Handbook of Strata-Bound and Stratiform Ore Deposits , Edited by Wolf, K. H., Elsevier Scientific Publishing Company, p. 79 - 390 Percent weights allocated to deposit: 100.0%
2.5 million metric tons zinc metal; Provisional entry?: yes; Yearly or summary?: SGrade-commodity information: | Zn: 4 percent | Reference: Laznicka, P.; Wolf, K. H., 1981: Bibliography and Ore Occurrence Data, and Indexes Volumes 8 - 10; Volume 10, Chapter 2, Section Data on the Worldwide Distribution of Stratiform and Strata-Bound Ore Deposits, in Handbook of Strata-Bound and Stratiform Ore Deposits , Edited by Wolf, K. H., Elsevier Scientific Publishing Company, p. 79 - 390 Percent weights allocated to deposit: 100.0% |
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: 1994; 20 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: unstatedGrade-commodity information: | Zn+Pb: 6.5 percent | Reference: Bechstadt (ed.), T.; Boni (ed.), M., 1994: Sedimentological, Stratigraphical and Ore Deposits Field Guide of the Autochthonous Cambro-Ordovician of Southwestern Sardina (Parte 1); Memorie Descrittive della Carta Geologica d'Italia , Servizio Geologico Nazionale, Istituto Poligrafico e Zecca dello Stato, Publication code 48, 272 p., 6 maps. Percent weights allocated to deposit: 100.0% |