Related by context. Frequent words. (Click for all words.) 77 sericite 75 biotite 75 siliceous 74 chalcocite 74 bornite 72 argillic alteration 72 sulphide bearing 72 potassic alteration 71 mafic volcanics 71 sulfide mineralization 71 graphitic 70 ultramafic rocks 70 pyritic 70 felsic 70 breccia zones 70 intrusives 70 skarn mineralization 70 jasperoid 70 arsenopyrite 70 hydrothermal alteration 69 disseminated sulphides 69 disseminated pyrite 69 stratabound 69 clay alteration 69 mineralization occurs 69 pathfinder elements 69 supergene 69 hydrothermal breccias 69 sulfides 69 glacial till 69 limonite 69 sphalerite 68 sulphide zones 68 molybdenite 68 surficial 68 chlorite 68 lithologies 68 stockworks 68 galena 68 metasedimentary rocks 68 tuffs 68 sulphide 68 brecciation 68 carbonaceous 68 sulphides 67 calcareous 67 breccias 67 intrusive rocks 67 mineralized lenses 67 iron oxides 67 syenite 67 pyrrhotite 67 pegmatites 67 porphyries 67 Uranium mineralization 66 siltstone 66 carbonatite 66 basaltic 66 alteration zones 66 veinlets 66 stockwork 66 mafic 66 saprolite 66 copper oxide 66 brecciated 66 oxide copper 66 gravity anomaly 66 hangingwall 66 overlies 66 limestones 65 epithermal vein 65 pegmatite 65 banded iron 65 structurally controlled 65 spodumene 65 disseminated mineralization 65 iron oxide 65 argillite 65 volcanogenic massive sulphide VMS 65 kimberlitic 65 mineralizing 65 chalcopyrite 65 volcanics 65 massive sulphide mineralization 65 silicification 65 bearing quartz veins 65 metasediments 65 artisanal workings 64 geochemical anomalies 64 sulphide mineralization 64 breccia zone 64 auriferous 64 quartz veining 64 gabbro 64 andesite 64 peridotite 64 mineralizing system 64 magnetic anomalies 64 gneiss 64 granites 64 copper Cu