Related by context. Frequent words. (Click for all words.) 80 tuffs 80 intrusives 80 intrusive rocks 80 metasediments 79 siliceous 79 felsic 78 volcanics 78 stockworks 77 sulphide bearing 77 silicified 77 mafic 76 gneiss 76 syenite 76 diorite 76 pyritic 76 brecciated 76 stockwork 76 breccias 75 granites 75 limestones 75 porphyries 75 gabbro 75 banded iron 74 ultramafic rocks 74 bornite 74 andesite 74 shear zones 74 granodiorite 73 Uranium mineralization 73 siltstone 73 chlorite 73 potassic alteration 73 disseminated pyrite 73 disseminated sulphides 73 arsenopyrite 73 auriferous 73 lithologies 73 sphalerite 73 quartz veins 73 mineralization occurs 73 veinlets 73 basalts 72 graphitic 72 steeply dipping 72 chalcocite 72 bearing quartz veins 72 structurally controlled 71 pyrrhotite 71 granitic 71 volcanic rocks 71 quartz veining 71 pegmatites 70 hydrothermal alteration 70 skarn mineralization 70 northeast trending 70 mantos 70 ultramafic 70 pegmatite 70 overlies 70 silicification 70 carbonatite 70 alteration zones 70 disseminated mineralization 69 spatially associated 69 galena 69 sulphides 69 schist 69 sedimentary rocks 69 chalcopyrite 69 clay alteration 69 hangingwall 69 veining 68 breccia 68 stratigraphy 68 skarn 68 quartz vein 68 massive sulphide mineralization 68 brecciation 68 northwest trending 67 sandstones 67 peridotite 67 sulfide mineralization 67 shear zone 67 Proterozoic 67 igneous 67 copper mineralization 67 volcanogenic massive sulphide VMS 67 rhyolite 67 massive sulphides 67 massive sulfide 67 underlain 66 epithermal 66 footwall 66 coarse grained 66 mineralized vein 66 porphyry 66 carbonaceous 66 molybdenum mineralization 66 porphyry style 66 outcrops 66 sulphide mineralization