Zinc and Lead Deposits of the Upper Mississippi Valley, Ausgaben 294-299U.S. Government Printing Office, 1906 - 155 Seiten |
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Alaska anthracite anticline basin beds Birch Creek blende Bull Canyon carbonate cent clay coal field coal group coal seams Coffeyville Colorado Company County crevices deposits depth district dolomite driller drilling Dubuque east Economic geology exposed flat formation Galena Geological Survey glass rock gold Hard water Hazel Green horizon igneous inches Independence quadrangle Iowa iron sulphide Kansas lead limestone located Magnesian Maquoketa marcasite Mesaverde miles mill mineral resources mines Mississippi Mountain Neodesha occurs Oil and Gas oil rock outcrop oxide pitches Platteville portion present production reconnaissance region Rept ridge samples sand sandstone Seward Peninsula shaft shale shaly sheet slope smithsonite soft strata streams structural structural basin sulphur surface thin Trout Creek Twentymile U. S. Geol underground water upper Valley Verdigris River vertical Waldemar Lindgren Wisconsin Yampa field Yampa River zinc
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Seite 4 - Wheua quantity of ore has been gotten out it is carried in baskets by the women to the banks of the Mississippi, and then ferried over in canoes to the island, where it is purchased by the traders at the rate of $2 for 120 pounds, payable in goods.
Seite 4 - ... some crevice in the rock having the appearance of a regular vein. At this stage of the pursuit most of the diggings have been abandoned and frequently with small veins of ore in view. No matrix is found with the ore, which is dug out of the alluvial soil, but it is enveloped by the naked earth, and the lumps of ore are incrusted by an ocherous earth.
Seite 4 - At the close of the Black Hawk war the large tract known as the Black Hawk purchase, including one-third of the present area of Iowa, was ceded to the United States by the Sacs and Foxes. After the completion of the treaty negotiations the miners again crossed over into the coveted region, where they built cabins and commenced to take out much ore. But a second time they were forced to leave because the treaty had not been ratified. In June, 1833, the treaty went into effect and the way was at length...
Seite 46 - WS 164. Underground waters of Tennessee and Kentucky west of Tennessee River and of an adjacent area in Illinois, by LC Glenn.