| Nota de contenido: |
Introduction and classification. Coal. Coal fields of north America. Petroleum and natural gas. Oil fields, oil shales and asphalts. Origin and classification of mineral deposits. Deformation and enrichment of mineral deposits. Structural features of openings in rocks and epigenetic. Metasomatic processes, mineral associations, and metallogenic. Building materials. Mica feldspar, gems, lithium minerals, monosite, graphite, and quartz. Magnesian minerals. Phosphates. Salines, gypsum, nitrates and iodine. Pyrite, sulphur, barium and strontium minerals fluorite and cryolite. Miscellaneous minerals. Iron. Copper. Gold and silver. Zinc and lead. Miscellaneous metals, |
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General economic geology, a textbook / New York : McGraw-Hill Book Company (1922)