proterozoic Definition

early, precambrian, paleozoic, ordovician, archaean, archean, eocene, mesozoic, cenozoic, neogene, paleocene, silurian, devonian, triassic, cretaceous, orogenic, gneiss, pliocene, batholith, oligocene, paleogene, miocene, sedimentary, igneous, amphibolite, stratigraphy, depositional, gabbro, clastic, pluton, diabase, diorite, pleistocene, campanian, metamorphism, granodiorite, andesite, peridotite, palaeozoic, schists, syenite, limestones, hornblende, alkalic, dolomites, basalts, greywacke, graben, huronian, granites, porphyry, argillite, stratiform, unconformity, argillaceous, dacite, pyroxenite, siltstone, monzonite, hornfels, muscovite, haematite, pegmatite, ankerite, anorthosite, breccia, dunite, craton, phyllite, stockwork, rhyolite, sulphides, syncline, ultrabasic, lithology, actinolite, pyrrhotite, terrane, biotite, kaolinite, pyrophyllite, lower carboniferous, norite, evaporite, footwall, argentiferous, anomalism, detrital, sericite, lavas, siderite, palaeocene, alunite, diamondiferous, mineralizing, hydrothermal, pentlandite, greisen, zechstein, autunite,