Related by context. Frequent words. (Click for all words.) 73 Eocene 73 Miocene 73 Carboniferous 73 Cretaceous 71 Pliocene 71 Oligocene 71 Paleozoic 71 Lower Cretaceous 70 Ordovician 70 Triassic 67 Late Cretaceous 67 Mesozoic 66 Devonian 64 depositional 64 Jurassic 64 Precambrian 63 Proterozoic 63 Silurian 62 limestones 61 graben 61 low sulphidation epithermal 61 porphyries 61 facies 61 skarn mineralization 60 radiometric anomaly 60 Uranium mineralization 59 epithermal vein 59 hydrothermal alteration 59 mineralizing system 59 sandstones 59 geologically 59 mineralized porphyry 59 Cretaceous Period 58 intrusive rocks 58 jasperoid 58 Burgess Shale 58 sedimentary basin 58 auriferous 58 geologic 58 breccia zones 58 overlies 58 Geological mapping 58 Pleistocene 58 massive sulphide mineralization 57 breccia zone 57 areal extent 57 artisanal workings 57 Quaternary 57 epithermal gold silver 57 updip 57 anticline 57 downdip 57 hydrothermal breccias 57 sedimentary rocks 56 marine sediments 56 tuffs 56 mineralized veins 56 stratigraphy 56 surficial 56 spatially associated 56 sulfide mineralization 56 intersected mineralization 56 VMS deposits 56 intrusives 56 porphyry style 56 mineralized horizons 56 epithermal 56 volcanics 56 lavas 56 gneiss 56 stratigraphic 56 Geologically 56 diamondiferous 56 stromatolites 55 hydrothermal 55 sandstone reservoirs 55 carbonate rocks 55 high sulphidation 55 mineralized lenses 55 basalts 55 uranium occurrences 55 stratabound 55 open pittable 55 banded iron 55 carbonatite 55 mantos 55 lithologies 55 structurally controlled 55 mineralized horizon 55 epithermal gold 55 Mineralisation 55 mineralized corridor 55 San Bartolo 54 Archean 54 radiometric anomalies 54 mafic volcanics 54 geochemical anomaly 54 lithology 54 massive sulfide 54 mineralized vein 54 shallow depths