The American Journal of Science, Volum 204J.D. & E.S. Dana, 1922 |
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Altres edicions - Mostra-ho tot
Frases i termes més freqüents
ammonium chloride appears aragonite atoms bands barium basalt Bayer's beds biotite bowlders brachiopods calcite canine cent chemical chloride clays colloidal color composition compound cone cone-in-cone Cope crystalline crystals deposits described determined Devonian diameter Dinictis Eocene evidence fanglomerates fault plane fauna feet feldspar formation fossils gabbro genus Geological Glass gneiss granite graptolites Holotype Hyrachyus igneous indices John Day JOUR lake Laue photographs layer length leucite limestone liquid lower Marsh mass material measurements melting method miles minerals Miocene mixture molar Nimravus Nimravus debilis occur orthoclase oxide Payette platycopis Pogonodon Pogonodon davisi posterior premolars present probably quartz lode quartzite Reagan refraction region ridge rocks salt sandstone SCI.-FIFTH SERIES sediments serrulidens shales silicates skull solution space groups sparagmite species specimen stibnite strontium structure surface symmetry temperature thickness tion Triassic trilobites U. S. Geol upper zone