Related by context. Frequent words. (Click for all words.) 68 tuffs 66 hydrothermally altered 66 metasedimentary rocks 66 sulphide bearing 65 dacite 65 schists 64 mafic volcanics 64 intrusive rocks 64 intrusives 64 felsic 64 weakly mineralized 64 pyrite chalcopyrite 63 syenite 63 monzonite 63 volcanics 63 sericite 62 breccia zones 62 felsic volcanic 62 stockworks 62 siltstones 62 pathfinder elements 62 potassic alteration 62 interbedded 61 pyroxenite 61 mafic 61 biotite 61 potassic 61 hydrothermal breccias 61 Mineralization occurs 61 mafic volcanic rocks 61 porphyries 61 metasediments 60 quartz carbonate 60 andesite 60 calcrete 60 Proterozoic 60 clasts 60 banded iron 60 spatially associated 60 stratabound 60 siliceous 60 bornite 60 skarns 60 limestones 59 hydrothermal breccia 59 gossans 59 brecciated 59 silicified 59 argillic alteration 59 granodiorite 59 quartz stockwork 59 stockwork mineralization 59 alteration zones 59 brecciation 59 mineralization occurs 58 carbonatite 58 quartz veinlets 58 structurally controlled 58 gneiss 58 gabbro 58 jasperoid 58 hangingwall 58 NE trending 58 mafic volcanic 58 diatreme 58 breccias 58 diorite 58 bearing quartz veins 57 pyritic 57 ultramafic 57 auriferous 57 basaltic 57 granitic 57 disseminated mineralization 57 Uranium mineralization 57 quartz veining 57 facies 57 chlorite 57 skarn mineralization 57 igneous rocks 57 disseminated sulphides 57 stockwork 56 ultramafic rocks 56 quartz veins 56 calcareous 56 overlain 56 shear zones 56 hydrothermal alteration 56 sedimentary rocks 56 disseminated pyrite 56 carbonate replacement 56 veinlets 56 surficial 56 breccia zone 56 argillite 56 Geological mapping 56 lithological 56 siltstone 56 anomalous copper 56 clay alteration 56 graphitic