Related by context. Frequent words. (Click for all words.) 80 sericite 79 biotite 77 siliceous 76 quartz veinlets 75 argillic alteration 75 quartz carbonate 75 potassic alteration 74 chlorite 74 chalcocite 74 brecciation 74 mafic volcanics 73 schists 73 pyroxenite 73 graphitic 73 felsic 73 disseminated pyrite 73 arsenopyrite 72 hydrothermal breccias 72 breccia zones 72 jasperoid 72 metasedimentary rocks 71 bornite 71 brecciated 71 pyrrhotite 71 pyritic 71 siltstones 71 interbedded 71 stockworks 71 sphalerite 71 ultramafic rocks 71 stratabound 71 tuffs 70 Mineralization occurs 70 quartz veining 70 sulphide minerals 70 clasts 70 sulphide bearing 69 mafic volcanic rocks 69 disseminated sulphides 69 syenite 69 dacite 69 stockwork 69 alteration zones 68 hydrothermal alteration 68 clay alteration 68 copper oxides 68 metasediments 68 veinlets 68 intrusives 68 intrusive rocks 68 monzonite 68 carbonate replacement 68 silicification 68 banded iron 68 andesite 67 haematite 67 pathfinder elements 67 mafic 67 galena 67 pegmatites 67 semi massive sulphide 67 silicified 67 limonite 67 spatially associated 67 mineralization occurs 67 calcareous 67 skarn mineralization 67 mineralization grading 67 chalcopyrite 67 gabbro 67 molybdenite 66 weakly mineralized 66 carbonaceous 66 porphyry mineralization 66 lithologies 66 breccias 66 auriferous 66 siltstone 65 sulfide mineralization 65 disseminated mineralization 65 diorite 65 steeply dipping 65 Ni Cu 65 massive sulphide mineralization 65 iron oxides 65 surficial 65 semi massive sulphides 65 quartz veins 65 diatreme 65 breccia 65 anomalous copper 64 bearing quartz veins 64 porphyries 64 calcrete 64 gossan 64 Uranium mineralization 64 argillite 64 disseminations 64 soil geochemical anomaly 64 sulphides 64 sulphide zones