neogene, palaeozoic, silicic, archean, orogenic, colluvial, lateritic, surficial, cenozoic, alum shale, evaporite, ordovician, anorthosite, paleozoic, amphibolite, haematite, alkalic, porphyritic, phyllosilicate, siliceous, supergene, paleocene, stratiform, depositional, eluvial, dunite, mesozoic, hornblende, noachian, dacitic, chloritic, magmatic, epidote, granitoid, extrusive, basaltic, igneous, calcareous, metallogenic, interbedded, biotite, phanerozoic, basinal, illite, metamorphic rock, dolomitic, argentiferous, cretaceous, auriferous, peridotite, pegmatite, dioritic, detrital, stromatolite, cenozoic era, ferruginous, syenite, rhyolitic, pelitic, muscovite, argillaceous, tertiary period, phlogopite, actinolite, silurian, gneissic, eclogite, carboniferous, palaeo, saprolite, relict, hydrothermal, loess, hematitic, chalcedonic, schistose, huronian, hypogene, olivine, dacite, tetrahedrite, felsite, sedimentary, lacustrine, enargite, fragmental, smectite, hypabyssal, mineralized, deformational, calcic, turonian, carbonaceous, syrtis major, sericite, pyroxene, amphibole, coeval, domal, pyrope, oligocene epoch, lower carboniferous, eocene, aurignacian, cambrian, devonian, jurassic, miocene, neolithic, pleistocene, pliocene, adolescence, elizabethan, mississippian, palaeolithic, pennsylvanian, precambrian, hercynian, laurentian, metamorphic, proterozoic, variscan, cratonic, neoproterozoic

early