Bulletin, Ausgaben 960-961U.S. Government Printing Office, 1948 |
Inhalt
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| 28 | |
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| 51 | |
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| 94 | |
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| 82 | |
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
andesite anticlinal antimony Arenitos arkosic Arroyo del Infierno Artillery formation Artillery Mountains average barite barite bed basalt basin Boleo formation breccia calcite centimeters Chapin Wash formation Cía cinnabar clay Cobwebb basalt Comondú Comondú volcanics consists contains copper drill east fault fine-grained folds footwall formation Formación fractures Geologic map Geological Survey grade grams granitic gravel Guadalcázar holes horizon Huahuaxtla Ilha Grande Ilha Pequena Kcgl kilometers limestone Lucifer Lucifer manganese manganese deposits manganese oxides manganiferous María de Miera massive material mercury metacinnabar metal meters thick metric Mexico middle formation minerals NACIONAL northeast northwest occur outcrops overlain Papas fan percent plate Pliocene primary gravel probably quartz Raizal Rawhide Mountains Realejo replaced by manganese rocks sample sandstone Sandtrap conglomerate Santa María Santa Rosalía Santo Niño scheelite shale southwest stibnite stopes stratigraphic structure surface syncline tons tourmaline tuff tuffaceous tungsten tunnel unconformity upper formation zone