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THE MATERIALS OF STRATIGRAPHY
STRATIGRAPHY AND THE WORLD TECTONIC MODEL
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accumulations activity alluvial ammonoids Appalachian areas assemblages Australia base basins belts biostratigraphic black shales Boucot boundary brachiopods carbonate Carboniferous changes China clastic climatic conodonts continental margins continents corals correlation cratonic crust deposits Devonian period Devonian rocks Devonian System distribution diversity Early Devonian earth eastern Eifelian Emsian erosion Europe evaporites evolution facies Famennian faunas figure formations Frasnian genera Geol geological geologists geosynclinal Givetian groups Hercynian invertebrate lacustrine lagoonal Late Devonian limestones Lower Devonian major marine Middle Devonian miogeosynclinal mudstones non-marine North America northern occur oceanic Old Red Sandstone orogenic outcrops palaeogeography Palaeozoic pelagic Petrol Phanerozoic plate-tectonic provinces realm recognised red beds reef region regression relatively sea level sediments sequences shales shallow shallow-water shelf Silurian South southern Spec species spores strata stratigraphic stromatoporoids subsidence tectonic terrigenous thick tidal tinental Trace fossils transgression unconformities uplift Upper Devonian Urals vertebrates volcanic vonian western widespread Ziegler zone