The Targeted Geoscience Initiative 4 - intrusion-related ore systems . : M45-95/2013E-PDF
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.
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| Ministère/Organisme | Canada. Natural Resources Canada. Geological Survey of Canada. |
|---|---|
| Titre | The Targeted Geoscience Initiative 4 - intrusion-related ore systems . |
| Titre de la série | Earth Science Sector, general information product ; 95e |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Issued also in French under title: Initiative géoscientifique ciblée 4 - systèmes minéralisés liés à des intrusions. |
| Information sur la publication | [Ottawa] : Natural Resources Canada, c2013. |
| Description | [4] p. (un-numbered pages) : col. ill., col. map. |
| Numéro de catalogue |
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| Numéro de catalogue du ministère | 292845 |
| Descripteurs | Geology Scientific research Metals Minerals |
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