Related by context. Frequent words. (Click for all words.) 67 calcareous 65 interbedded 65 alluvial deposits 64 clasts 64 depositional 64 andesitic 63 gabbroic 63 embayment 62 silts 62 stratiform 62 surficial 62 tuffs 62 clastic 62 erosional 62 basalts 61 mudstones 61 Upper Cretaceous 61 sulfide minerals 61 greywacke 60 haematite 60 siliceous 60 scheelite 60 sulphide minerals 60 monazite 60 gossanous 60 goethite 60 placer deposits 60 massive sulphide deposits 60 granitoid 60 quartz carbonate veins 59 siltstones 59 schists 59 facies 59 kaolinite 59 Upper Jurassic 59 basaltic 59 graben 59 igneous rock 59 calcrete 59 quartz monzonite 59 glacial till 59 sulphide deposits 59 gneisses 58 kimberlitic 58 hydrothermally altered 58 magmas 58 alluvium 58 carbonate replacement 58 stockwork veining 58 granitic 58 magmatic 58 inter tidal 58 jasperoid 58 metasedimentary rocks 58 overlies 58 limestones 58 stratabound 57 felsic volcanic 57 hydrothermal activity 57 carbonate alteration 57 jarosite 57 igneous rocks 57 metamorphism 57 quartz veined 57 marine sediments 57 sulphide bearing 57 pyrite pyrrhotite 57 uraniferous 57 iron oxides 57 hydrothermal fluids 57 carbonate minerals 57 fluvial 57 pyrite chalcopyrite 57 Archaean 57 cretaceous 57 subglacial 57 vuggy silica 57 loess 57 skarns 57 carbonaceous 56 mudstone 56 granitic rocks 56 felsic volcanic rocks 56 basalt rock 56 quartz diorite 56 mafic volcanics 56 Ilmenite 56 hornfels 56 copper sulphide 56 gossans 56 gravels 56 mafic volcanic 56 uraninite 56 sedimentary 56 hydrothermal breccia 56 hydrothermal breccias 56 sedimentary rock 56 breccia zones 56 decaying vegetation 56 Uranium mineralization 56 magnetite mineralization