. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. EPOSITS AVILLARI) HAYES 435 CONTENTS. Page. Distribution of Ixanxite deposits in the United States 441 Location of tlie Arkansas bauxite region 442 General geologic and physiographic relations 443 Detailed description of the bauxite deposits 446 Bryant district 44t) Igneous rocks 446 Kaolinized syenite, or chimney rock 447 Tertiary and later formations 44S Bauxite 449 Fourche Mountain district 454 Igneous rocks 4o5 Bauxite 45
. Annual Reports of the Department of the Interior for the Fiscal Year Ended June 30, 1900--Twenty-First Annual Report of the United States Geological Society. EPOSITS AVILLARI) HAYES 435 CONTENTS. Page. Distribution of Ixanxite deposits in the United States 441 Location of tlie Arkansas bauxite region 442 General geologic and physiographic relations 443 Detailed description of the bauxite deposits 446 Bryant district 44t) Igneous rocks 446 Kaolinized syenite, or chimney rock 447 Tertiary and later formations 44S Bauxite 449 Fourche Mountain district 454 Igneous rocks 4o5 Bauxite 456 Isolated deposits 459 Mabelvale 459 Alexander 460 Bryant 460 Bearden 460 Origin of the dej^sits 4()1 Economic relations 466 Develo])ment 466 Amount of ore 468 Quality of the ores 470 Mining and i)nparation of ore for market 471 437 ILLUSTRATIONS. Page. Platk LX. General map of the bauxite districts 441 LXI. Map of the Bryant district 44»j LXII. A and 7>, Outcrop of bauxite bed in ^McCirncs Iliilldw, Ilrvaiit dis-trict 44S LXIII. Map of the Fourche Mountain district 454 LXIV. J, Bauxite bed exposed in mining; //,.Method of niiiiimr bauxite. 472 439. TWENTY-FIRST ANNUAL REPORT PART III PL. LX
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1900, bookyear1901
