Contributions to Economic Geology, 1906 (Classic Reprint)

Plate I. Map showing location of Snake Rivor gold placers in a portion of Uinta County, Wyo 7fi II. Map showing location of placer claims along Snake River in the vicinity of Minidoka, Idaho 78 III. Geologic map of upper (oal Creek Valley and vicinity, Rio Blan(o County, Colo 112 IV. Map of parts of I daho, Wyoming, and Utah, showing localities of upper Carboniferous rocks containing phosphate beds 450 Fig. 1. Index map showing position of mining camps in Philips})urg quadrangle, Montana 32 2. Sketch plan of the Granite-B imetallic lode, Philipsburg quadrangl( Montana 39 3. Generalized section of Granite vein, Philipsburg quadrangle. Montana.. 42 4. Granite block surrounded and cut by coarsely cr stalline calcit( ,(luart z. pyrite, and chalcopyrite. Cable mine, Philips})urg quadrangle, Montana .48 5. Economic map of the Hartville uplift, liaramie County, Wyo 192 6. Sketch map of Gila River alum deposits 218 7. Map showing distribution of Portland cement raw materials in vicinity of Newcastle, Wyo 233 8. Map showing location of Cheyenne and Newcastle, Wyo., in relation to established Portland cement plants and transcontinental railroads... 240 9. Sketch map showing line of outcrop of gypsum ])ed, northwestern New Mexico 201 10. Map showing exposures of Cretaceous rocks in Georgia 305 11. Map of Cheltenham district and vicinity, St. Louis, Mo 315 12. Map of South Mountain in the vicinity of Mount Holly Springs, Pa., showing clay mines and rock formations 327 13. Map showing areas inN orth Carolina in which mica has been mined 402 14. Section across pegmatite at ThornM ountain mine, Macon County, X. C. 411 15. Pegmatite 2J feet thick near Wayah Bald mine, Macon County, N. C413 16. Section of pegmatite at mica prospect near Chink Knob, Jackson County, N.C 416 17. Section of pegmatite at A dams mine, IJ miles southeast of Webster, Jackson County, N. C417 18. Sket
(Typographical errors above are due to OCR software and don't occur in the book.)