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<br />o <br />o PREFACE <br />~ <br />(,Q <br />W <br />~ The data on mineral resources and development, the status of <br />geologic mapping' in the AWR Basins, and the recolDlDendations for pro- <br />grams of mineral resource investigations and geologic mapping presented <br />in this section have been sUlDlDarized mostly by the U. S. Bureau of <br />Mines (chairman agency) and the U. S. Geological Survey ,(vice-chairman <br />agency) of the Minerals and Geology Work Group. Data, guidance, and <br />close cooperation throughout the course of the study were furnished by <br />members of the Work Group representing the states of Arkansas, Colorado, <br />Kansas" Louisiana, Missouri, New Mexico, Oklahoma, and Texas. Members <br />of the Work Group, repxesenting the Corps of Engineers, the Department <br />of Agriculture, the Federal Power CommisSion, and the Department of <br />Health, Education, and Welfare, reviewed the section at various stages <br />during the progress of the study and made valuable suggestions for its <br />improvement. <br /> <br />Most of the material presented in Chapter II, "Mineral <br />Resources and Development,U was prepared by the U. S. Bureau of Mines <br />and the U. S. Geological Survey. The material presented in Chapter III, <br />"The Plan for Mineral Resources Investigation and Research and Geologic <br />Mapping," was prepared by the U. S. Bureau of Mines, the U. S. Geologi- <br />cal Survey, and the participating State Geological Survey organizations. <br /> <br />Mineral production figures and reserve estimates for the many <br />mineral commodities are usually available only on a statewide basis. <br />The reliability, unifOrmity, and detail of this information is widely <br />variable. The aggregate knowledge of the melllbers and associates of the <br />Minerals and Geology Work Group provided the ,basis upon which available <br />data have been evaluated. These reasonable estimates have been used in <br />this section of the AWR Report. <br /> <br />Subject to the concurrence and full approval of the several <br />states concerned, AWRBIAC has accepted the material in this section to <br />be made a part of ' the AWR Basins Report, and has directed the chairman <br />'and vice-chairman agencies to reproduce it for inclusion in ,the report. <br /> <br />I <br />I <br />, <br /> <br />11 <br />