. 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. «. TWENTY-FIRST ANNUAL REPORT PARTIII LEGEND ALGONKIAN UNCLASSIFIED Aed Diabase ami diorile UPPER HURONIAN UPPER MARQUETTE Clarksbxirg formation IAum IMicltisjamme formation Aui Ishpeiiiing quarlzite LOWER HURONIANLOWER MARQUETTE I AIn I Negauuee iron bearingformation Ajibikquartzite Kona dolomite Me snflrd qiiar zite ARCHEAN NORTHERN AND SOUTHERN COMPLEX i^ Kitclii schists iTff^QUETTE DISTRICT Mona schistsPalmer gneiss Geolo.^ic
. 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. «. TWENTY-FIRST ANNUAL REPORT PARTIII LEGEND ALGONKIAN UNCLASSIFIED Aed Diabase ami diorile UPPER HURONIAN UPPER MARQUETTE Clarksbxirg formation IAum IMicltisjamme formation Aui Ishpeiiiing quarlzite LOWER HURONIANLOWER MARQUETTE I AIn I Negauuee iron bearingformation Ajibikquartzite Kona dolomite Me snflrd qiiar zite ARCHEAN NORTHERN AND SOUTHERN COMPLEX i^ Kitclii schists iTff^QUETTE DISTRICT Mona schistsPalmer gneiss Geolo.^ical sections are shown on Plate LIU MARQUETTE DISTRICT. 371 and limonite are subordinate. The iron content computed from cargoanahses during 1899 varies from to 69 per cent, and averagesabout 63 per cent. The phosphorus content varies from to cent, and averages about percent. The silica content variesfrom to per cent, and averages about -1:.8 per cent. Thewater content varies from to per cent, and averages per cent. (^ATIOX. Tlie ^Marcjuettc district is a comparatively small east-west belt run-n
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1900, bookyear1901
