Related by context. Frequent words. (Click for all words.) 57 erosional 56 extensional 55 graben 55 embayment 54 syncline 54 crustal 53 ponded 53 upwellings 53 stratigraphically 53 stockwork veining 53 jasperoid 52 hydrothermal breccia 52 thermocline 52 shallower 52 subcrop 52 previously undrilled 52 temperature gradient 52 foliation 51 brecciation 51 temperature gradients 51 porous limestone 51 diatreme breccia 51 tonalite 50 pyrite mineralization 50 magma chamber 50 andesitic 50 alteration mineralization 50 alluvium 50 stratiform 50 hydrothermal activity 50 Mineralization occurs 50 salinization 50 shallow 50 depositional 50 subglacial 50 gravity anomalies 50 silts 50 mineralized breccia 50 vuggy silica 50 Footwall Zone 50 downdip 50 clastic 50 northerly trending 50 hydrothermally altered 49 ridging 49 NE trending 49 mudstones 49 facies 49 NW trending 49 quartz carbonate veins 49 fluvial 49 porosities 49 quartz stockwork 49 hydrothermal fluids 49 sediment 49 groundwater depletion 49 Upper Jurassic 49 chalcopyrite mineralization 49 epithermal mineralization 49 argillic alteration 48 sedimentation 48 creek mouths 48 quartz veined 48 auriferous 48 freshet 48 weedbeds 48 weedline 48 andesites 48 lithosphere 48 seawaters 48 skarn mineralization 48 gossanous 48 magnetite mineralization 48 volcanic tremor 48 shallow reefs 48 Upper Cretaceous 48 lateral extensions 48 prognosed 48 diatreme 48 disseminated sulphide 48 basin 48 alluvial deposits 48 polar vortex 48 surficial 48 anticline 48 steepens 48 seawater intrusion 48 silica alteration 47 Veta Madre 47 Lava flows 47 clasts 47 mineralizing system 47 shoaling 47 rifting 47 rhyolitic 47 quartz carbonate 47 clay alteration 47 mineralizing 47 hangingwall 47 calcareous 47 glacial till