The Journal of Geology, Volumen8Thomas Chrowder Chamberlin University of Chicago Press, 1900 Vols. for 1893-1923 includes section: "Reviews." |
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Términos y frases comunes
acid andesite appear Archean Arthrodires basalt base basin beds biotite Cambrian carbonate Carboniferous cent character chemical classification Clepsydrops coal color composition conglomerate correlation Creek Cretaceous crushing strength crystals débris deposits depth Devonian district drift earth east Eocene erosion evidence fauna feet feldspar formation fossils gabbro Geological Survey geologists glacial glacier gneisses grains granite hornblende Huronian igneous rocks JOUR Jura Jurassic lakes later Laurentian lavas less limestone Lower Huronian maps marl mass material miles mineral momentum moraine Mountains nebula occur origin orthoclase Peak Plate pores portion pounds per square present probably Professor quartz quartzite region Report represented rhyolite ridges River salt samples sand sandstone sediments shales Silurian slope species square inch stages strata streams surface Surv temperature thickness tion U. S. Geol unconformably upper valley volcanic Wisconsin zone