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TitleClassification, distribution and grade-tonnage summaries of Canadian lead-zinc deposits
DownloadDownloads
AuthorSangster, D F
SourceGeological Survey of Canada, Economic Geology Report 37, 1986, 68 pages (3 sheets), https://doi.org/10.4095/121058
Year1986
PublisherNatural Resources Canada
Documentserial
Lang.English
MapsPublication contains 3 maps
Map Info.location, deposit location, 1:5,000,000
Map Info.location, deposit distribution, 1:5,000,000
Map Info.geological, deposit location, 1:5,000,000
Mediapaper; on-line; digital
RelatedThis publication is accompanied by Geological Survey of Canada; (1986). Lead - Zinc Deposits in Canada, Geological Survey of Canada, "A" Series Map no. 1651A
File formatpdf
ProvinceNew Brunswick; Nova Scotia; Prince Edward Island; Quebec; Ontario; Manitoba; Saskatchewan; Alberta; British Columbia; Yukon; Northwest Territories; Northern offshore region; Eastern offshore region; Western offshore region; Canada; Nunavut; Newfoundland and Labrador
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 67; 66; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 85; 84; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114; 115; 116; 117; 120; 340; 560
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Subjectseconomic geology; lead-zinc deposits; mineral deposits; ore grades; vein deposits; exhalative deposits
Released1986 12 01; 2015 08 27
AbstractA summary overview of certain quantifiable characteristics of Canadian lead-zinc deposits and occurrences is presented by means of maps, graphs and explanatory text. A total of 378 lead-zinc deposits, defined as mineral concentrations for which grade and tonnage data are available for these elements, have been assigned to one of six deposit-type categories: (i) sandstone-lead; (ii) contact metasomatic; (iii) Mississippi Valley; (iv) sediment-hosted exhalative; (v) volcanic-associated exhalative; and (vi) vein/replacement. Deposits are plotted on a 1:5 million scale geological map with symbols depicting deposit-type, total (Pb+Zn) content, and Zn/(Zn+Pb) ratio. Crowded areas of deposit-clusters are shown on a series of more detailed geological maps. The 4900 lead-zinc occurrences (no grade-tonnage data available) recorded in CAN MIN DEX, the GSC computer-based mineral deposits file, were simply contoured by a moving average technique and are displayed as a density contour map. The study showed that:
1. A majority of all deposits are decidedly copper-poor relative to lead-zinc;
2. Volcanic-associated deposits, as a group, are largely bimetallic Cu-Zn whereas all other deposit-types are bimetallic Pb-Zn;
3. Volcanic-associated exhalative and vein/replacement deposits are the two most abundant deposit-types, constituting 47% and 37%, respectively, of the total deposit population;
4. Vein/replacement deposits account for the majority of size less than 100 OOO tonnes ore; deposits larger than this are mainly of the exhalative type; 5. The median size of all Canadian lead-zinc deposits is 0.
5 million tonnes ore;
6. A majority of deposits grade less than 18% (Pb+Zn);
7. The average (Pb+Zn) grade of sediment-hosted exhalative deposits (10.07%) is more than double that of volcanic-associated exhalative deposits (4.94%); vein/replacement deposits not subjected to hand-picking of ore material average 8.58%.
8. Contour plots of 4912 lead-zinc occurrences show that most coincide with deposit-clusters.
The report includes three appendices which: (i) list deposits by type with cross-referencing by name and deposit-number including latitude, longitude and National Topographic System (NTS) location data for each deposit; (ii) list deposits !Jlphabetically by deposit-type; and (iii) record selected bibliographic references for each deposit for a total of 748 citations.
GEOSCAN ID121058