| Title | The Targeted Geoscience Initiative 4, intrusion-related ore systems |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Geological Survey of Canada |
| Source | Earth Sciences Sector, General Information Product 95E, 2013, 4 pages, https://doi.org/10.4095/292845  Open Access |
| Image |  |
| Year | 2013 |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is a translation of Initiative
géoscientifique ciblée 4, systèmes minéralisés liés à des intrusions |
| File format | pdf |
| Province | British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut; Canada |
| NTS | 1; 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;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Lat/Long WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | economic geology; igneous rocks; intrusive rocks; volcanogenic deposits; sedimentary ore deposits; mineral deposits; mineralization; mineral occurrences; gold; uranium; nickel; copper; platinum;
chromium; antimony; tin; barite; zinc; lead; volcano-sedimentary ore deposits; hydrothermal deposits; hydrothermal alteration; platinum group elements |
| Illustrations | location maps; photographs |
| Program | Targeted Geoscience Initiative (TGI-4) TGI-4 Program Coordination |
| Released | 2013 08 27 |
| Summary | (Plain Language Summary, not published)
Intrusion-related ore systems are formed when molten rock (magma) intrudes into the Earth's crust but solidifies before it can reach the surface. Because
this magma cools very slowly, there is enough time for large mineral crystals to grow, which produces many intrusive rocks that have a coarse-grained, granite-like texture. Some of these rocks may grow crystals that are significantly larger than the
rest and have one or more minerals. These are called 'porphyry' rocks. As porphyry rocks cool and crystallize, they can produce large volumes of hot, salt-rich fluids that carry high concentrations of base metals such as copper, molybdenum, tungsten
and tin. |
| GEOSCAN ID | 292845 |
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