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| 01971nam 2200301za 4500 |
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| 001 | 9.822846 |
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| 003 | CaOODSP |
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| 005 | 20230131161137 |
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| 007 | cr ||||||||||| |
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| 008 | 160817s2013 oncbo o f000 0 eng d |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 086 | 1 |aM45-95/2013E-PDF |
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| 245 | 04|aThe Targeted Geoscience Initiative 4 - intrusion-related ore systems |h[electronic resource]. |
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| 260 | |a[Ottawa] : |bNatural Resources Canada, |cc2013. |
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| 300 | |a[4] p. (un-numbered pages) : |bcol. ill., col. map. |
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| 490 | 1 |aEarth Science Sector, general information product ; |v95e |
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| 500 | |aIssued also in French under title: Initiative géoscientifique ciblée 4 - systèmes minéralisés liés à des intrusions. |
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| 520 | 3 |aIntrusion-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. |
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| 692 | 07|2gccst|aGeology |
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| 692 | 07|2gccst|aScientific research |
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| 692 | 07|2gccst|aMetals |
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| 692 | 07|2gccst|aMinerals |
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| 710 | 1 |aCanada. |bNatural Resources Canada. |
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| 710 | 2 |aGeological Survey of Canada. |
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| 775 | 08|tInitiative géoscientifique ciblée 4 - systèmes minéralisés liés à des intrusions |w(CaOODSP)9.822849 |
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| 830 | #0|aGeneral information product (Canada. Natural Resources Canada)|v95e|w(CaOODSP)9.822750 |
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| 856 | 40|qPDF|s784 KB|uhttps://publications.gc.ca/collections/collection_2016/rncan-nrcan/M45-95-2013-eng.pdf |
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