Related by context. Frequent words. (Click for all words.) 76 Cretaceous 75 Triassic 74 Paleozoic 74 Eocene 72 Proterozoic 72 Miocene 72 Devonian 69 Oligocene 68 Pliocene 67 Precambrian 65 sedimentary rocks 64 basalts 64 Late Cretaceous 63 Mesozoic 63 limestones 60 Jurassic 60 sedimentary 60 volcanics 59 Archean 59 stratigraphy 59 intrusive rocks 59 geologically 59 Pleistocene 59 magmatic 58 glaciation 58 sedimentary basin 58 Geologically 58 sandstones 58 gneiss 58 Quaternary 58 stratigraphic 57 gabbro 57 andesite 57 volcanism 57 hydrothermal alteration 57 granitic 57 banded iron 57 carbonatite 57 peridotite 56 overlies 56 shales 56 massive sulphide mineralization 56 sediments 56 intrusives 56 volcanic rocks 55 massive sulfide 55 mafic 55 geologic 55 sedimentary rock 55 metasediments 55 diorite 54 siltstone 54 granodiorite 54 shallow depths 54 carbonate 54 shear zones 54 ultramafic 54 unconformity 54 granites 54 crustal 53 mineralizing 53 hydrothermal 53 ultramafic rocks 53 clay alteration 53 lithological 53 chargeability anomaly 53 downdip 53 undrilled 53 lithologies 53 breccia 52 disseminated mineralization 52 mineralized corridor 52 Holocene 52 stockwork 52 sulfide mineralization 52 footwall 52 mineralized horizon 52 anticline 52 Utica Shale 52 carbonates 52 geochemical anomaly 51 porphyry 51 epithermal 51 lithology 51 diamondiferous 51 geophysical anomaly 51 sulphides 51 uranium mineralization 51 radiometric anomalies 51 molybdenum mineralization 51 underlain 51 structurally controlled 51 shear zone 51 bearing quartz veins 51 calcite 51 Fault Zone 51 Tertiary 51 silicification 51 felsic 51 greenstone belt 50 REE mineralization