The Student's Elements of GeologyJ. Murray, 1871 - 624 pàgines |
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Altres edicions - Mostra-ho tot
Frases i termes més freqüents
abundant alluded Ammonites ancient argillaceous basalt beds belong bones brachiopoda calcareous called Cambrian Carboniferous character clay coal common conglomerate consist containing corals Crag Cretaceous crystalline denudation deposits Devonian dikes England Eningen Eocene eruptions Europe extinct fauna feet thick felspar fish fissures formations fossil fossiliferous fragments freshwater genera genus Geol geological geologists glacial gneiss granite gravel horizontal hornblende lakes land lava layers Lias limestone living Llandeilo Lower Miocene mammalia marine shells marl mass metamorphic mica miles mineral Miocene mollusca mountain Neocomian newer North nummulitic observed occur Old Red Sandstone older Oolite organic remains origin pebbles period Permian plants Pliocene plutonic rocks portion Post-pliocene Purbeck quadrupeds quartz region reptiles rivers sand sediment seen shale siliceous Silurian slate sometimes species stone strata stratified supposed surface tertiary tion trachyte Trias tuffs Upper Miocene valley veins vertical volcanic rocks white chalk