Related by context. Frequent words. (Click for all words.) 69 Proterozoic 65 Precambrian 61 intrusive rocks 61 metasediments 61 limestones 60 granitic 60 sedimentary rocks 59 volcanics 59 Ordovician 59 Paleozoic 58 mafic 58 sedimentary 58 banded iron 57 granodiorite 57 Eocene 57 intrusives 56 gneiss 56 felsic 56 Geologically 56 epithermal 56 hydrothermal alteration 56 gabbro 56 Mesozoic 56 diorite 56 ultramafic rocks 56 Devonian 56 Cretaceous 55 overlies 55 volcanic rocks 55 ultramafic 55 lithologies 54 porphyry 54 peridotite 54 andesite 54 geologically 54 unconformity 54 stratigraphy 54 granites 54 mineralizing 53 Triassic 53 Miocene 53 carbonaceous 53 mineralization occurs 53 carbonatite 53 Tertiary 53 sulphide mineralization 53 massive sulfide 53 lithology 52 greenstone belt 52 massive sulphide mineralization 52 sulphides 52 stratigraphic 52 shear zones 52 copper mineralization 52 magmatic 52 sedimentary rock 51 nickel sulphide 51 sandstones 51 polymetallic 51 Porphyry 51 breccias 51 clay alteration 51 epithermal gold 51 gold mineralization 51 pegmatite 50 diamondiferous 50 skarn 50 massive sulphide 50 sulphide 50 copper porphyry 50 geological 50 silicified 50 Pliocene 50 dolomite 50 sulfide mineralization 50 footwall 49 structurally controlled 49 mineralization 49 radiometric anomalies 49 breccia 49 VMS deposits 49 uranium mineralization 49 porphyry copper 49 stockwork 49 rhyolite 49 Cu Au 49 brecciated 49 underlain 49 Hemlo 49 bearing quartz veins 49 Late Cretaceous 48 carbonate 48 schist 48 mineralized horizon 48 hydrothermal 48 intersected mineralization 48 pegmatites 48 Mineralisation 48 IOCG 48 mineralized 48 quartz vein