Related by context. Frequent words. (Click for all words.) 75 hydrothermal breccias 74 tuffs 74 breccia zones 74 felsic 74 intrusives 74 andesite 74 metasedimentary rocks 74 stratabound 74 mafic 73 brecciated 73 sulphide bearing 73 breccias 73 stockworks 73 jasperoid 72 ultramafic 72 silicified 72 volcanics 71 intrusive rocks 71 rhyolite 71 pyritic 71 gabbro 71 siltstone 70 siliceous 70 gneiss 69 syenite 69 graphitic 69 stockwork 69 shear zones 69 sericite 68 breccia 68 ultramafic rocks 68 metasediments 68 bearing quartz veins 68 granitic 68 banded iron 68 lithological 67 bornite 67 veinlets 67 hangingwall 67 skarn mineralization 67 diorite 67 potassic alteration 67 biotite 67 overlie 67 structurally controlled 67 disseminated mineralization 67 hydrothermal alteration 67 mantos 67 graben 67 argillite 67 porphyries 67 mineralized porphyry 66 spatially associated 66 granodiorite 66 quartz veins 66 alteration zones 66 sedimentary 66 northeast trending 66 overlies 66 disseminated sulphides 66 pyrrhotite 66 steeply dipping 66 chalcocite 65 sulfide mineralization 65 auriferous 65 carbonatite 65 disseminated pyrite 65 mineralization occurs 65 mudstone 65 basalts 65 calcareous 65 Uranium mineralization 65 mineralizing 65 sulphides 64 silicification 64 arsenopyrite 64 carbonaceous 64 massive sulphide mineralization 64 breccia zone 64 magmatic 64 lithology 64 northwest trending 64 brecciation 64 peridotite 64 limestones 64 quartz vein 64 skarn 64 lithologies 63 epithermal vein 63 alluvium 63 basaltic 63 sphalerite 63 chlorite 62 galena 62 quartz veining 62 mineralized vein 62 disseminations 62 sandstones 62 pegmatites 62 stratigraphy 62 volcanic rocks