This section provides an introduction to the geology of metallic and industrial mineral deposits in the conterminous United States. The section is organized into chapters discussing specific commodities or groups of commodities. Authors of these chapters explore some of the important kinds of mineral resources in the United States, including brief descriptions of uses of particular materials, the mining history, and future prospects. The primary focus is on the geology of important deposits, commonly presented in a historical context. Maps included as plates provide information on locations and distributions of deposits and mines, as selected by the authors for emphasis and explanation. Bibliographic citations provide an introduction to additional literature for the interested reader. Discussions of the geology of particular deposits such as presented here provide needed background for writings that synthesize groups of similar deposits into deposit models. The collection of models for metallic deposits edited by Cox and Singer (1986) provides one-page geological summaries for 85 descriptive models, and graphical summaries of grade andtonnage for 60 of these. Although some grouping by deposit type is the logical outcome of the organization of the present section, refer to the Cox and Singer volume for this type of treatment. The publication United States Mineral Resources, (Brobst and Pratt, 1973) can provide an important supplement to this section.
Geologists, economists, and historians have documented the dependence of modern civilization on mineral and energy resources and the changes in needs through time as technology has developed to its present state.Our use of
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Economic Geology, U.S.
This volume includes sections on Mineral Deposits (7 chapters on metals and 4 on industrial minerals); Oil and Gas (3 chapters on principles and 12 synthesizing major oil and gas basins); and Coal (3 chapters on principles and 5 synthesizing major coal provinces, including Alaska). Six large plates summarize distribution resources of all resources discussed in the text, two more plates compare cross-sections of major oil and gas basins at a common horizontal and vertical scale, and another shows a major reconstruction of a Pennsylvanian coal swamp.