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| DESCRIPTIVE MINERALOGY OF PENNSYLVANIA 104 Na 2Al 2 Si3 Oi .2H 2 O; SiO 2 47.4, A1 2 O 3 26.8, Na...Na 2 O 16.3, Lenni, Delaware County. Crystals. Eyerman, 1911, 11. Composition: Analysis: Fe 2 O3 CaO...Sp.gr LOCALITIES: Berks County: Birdsboro, and Gickerville; Delaware County: Leiperville, Lenni (druses...colorless crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...cut east of Reading (probably Birdsboro), Berks County. White, Smith, 1910, 540. silky mass of radiating |
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| PENNSYLVANIA GEOLOGICAL SURVEY FOURTH SERIES Bulletin M 18-C THE MINERALS of PENNSYLVANIA NON-METALLIC... CONTENTS Introduction Asbestos Barite Franklin County Fulton and Bucks Counties Corundum Page 1 1 5...Magnesite Phosphate minerals Cumberland County Juniata County 18 23 25 25 26 Potash 29 Quartz-Mint...Quartz-Mint 32 Rock salt 36 Crawford County Elk County 36 37 Erie and Forest Counties 38 McKean, Potter...inquiries about the occurrence of minerals in Pennsylvania that cannot be answered by referring the inquirer |
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| ....... __ . _............... ____ Moraines in French Gulch .................... ·_ ....... __ ......... . . . . . . . . . . . . . . . . . . . . . . Apatite..................................................northern and central parts of the area-- .... 'I_Tp French Gulch and over Farncomb Hill ............ __ ....Gibson Hill................ Review of the southern mines.............................................. ................. _........... _......... . 137 French Creek tunneL .................................... |
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| Idaho Batholith Near Pierce and Bungalow Clearwater County, Idaho GEOLOGICAL SURVEY PROFESSIONAL PAPER... Idaho Batholith Near Pierce and Bungalow Clearwater County, Idaho By ANNA HIETANEN METAMORPHIC AND IGNEOUS...monzonite and related rocks ___ -------Stock at Beaver Creek _________________ _ Coarse-grained quartz monzonite...Pierce area. 3. Geologic sketch map of the Beaver Creek area. Page FIGURE 1. Index map of northern Idaho...photomicrograph of quartz monzonite along Beaver Creek ________ -----------------------7. Camera Iucida |
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| Metasomatic metamorphism in western Clearwater County, Idaho. (B) Anorthosite and associated rocks in...batholith near Pierce and Bungalow, Clearwater County, Idaho. (E) Belt series in the region around Snow... Metasomatic Metamorphism in Western Clearwater County Idaho By ANNA HIETANEN METAMORPHIC AND IGNEOUS...in garnet amphibolite from the side of Orofino Creek about 13 miles east of Orofino_________________...kyanite-garnet amphibolite exposed along Orofino Creek _ ________________________ Photomicrograph of sheared |
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| --------Miocene structural movements in Thomas County, Ga., by C. VV. Sever__________________________________________...sediments of the Connors Pass quadrangle, White Pine County, Nev., by E. J. Young______ 108 Geophysics General...the Franciscan Formation, Cazadero area, Sonoma County, Calif., by D. E. Lee, R. G. Coleman, Harry Bastron...spectrochemical determination of minor elements in apatite, by C. L. Waring and Nancy Conklin_______ 220...Calif. Work done in cooperation with Los AngeZes County, OaZif. Abstraot.-The central Santa Monica Mountains |
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| ...... 99 West slope from Tensleep Creek to head of No Wood Creek.......................... 100 Region...Buffalo Creek................................................ 102 Central ridge from Otter Creek to Okie's...PLATE I. Cliff of Chugwater red beds on No Wood Creek........................................ II. Map...................... III. A, Falls of Big Goose Creek, on east side of Bighorn Mountains; B, The granite...shales, east side of Bighorn Mountains at Rapid Creek........ IV. View up the lower canyon of Bighorn |
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| TERTIARY ROCKS OLDER THAN INTRUSIVE SUITE OF KIDD CREEK ............... Volcaniclastic rocks ................................... INTRUSIVE SUITE OF KIDD CREEK ......... Dikes ............................. Sills...Hornblende quartz diorite and granodiorite of McCoy Creek .................... Geometry of body ............intrusion and the Kidd Creek intrusive suite ............... Relation of McCoy Creek intrusion to the radial...sill swarm ...... Age of intrusive suite of Kidd Creek ....... STRUCTURE ........................... Folds |
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| v> ^ .v -^^J^ (LuL^^^^ ^n^/Titt- i. C^ Mines#Minerals *<• VOLUME XXXI August, 1911, to July...Ohio Mine Inspectors Appropriations for Bureau of Mines, Recom- mended Air-Compressor Explosion Africa...Colorado Lignite Strike Situation 595 American Gem Mines and Mining American Institute of Mining Engineers...Russia Beard, J. T., Rolling Friction Bell, R. M., Mines in Pioche, Nevada Dis- 243— Pioche, Nevada District...Borneo, 531 Boss Amalgamation Process Bottom Creek Mine Explosion Brackenbury, Cyril, Unwatering 62 |
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| Hannum Creek 4 Cunningham Creek 4 Collins Creek Old Glory Creek4 Nelson Gulch American Creek Pinnell...River Perry Creek Inmachuk River Kiwalik basin 4 Candle Creek Bucklaud River basin 4 Bear Creek Kugruk basin_...basin_ Dixie Creek Alder Beach 4 Source of the gold Summary 4 4 Coal General conditions Trails 4 Mail...distance 1 mile 4 26 VI. A, Lava flow on Cottonwood Creek ; B, Ropy surface of recent lava flow betweep the...of Kiwalik River 4 34 IX. A, Sluicing on Hannum Creek ; B, " Hot Springs " on upper Inmachuk River 4 48 |
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| Washington By U.S. GEOLOGICAL SURVEY and U.S. BUREAU OF MINES STUDIES RELATED TO WILDERNESS-STUDY AREAS U. S...the U.S. Geological Survey and the U.S. Bureau of Mines. Bibliography: p. Contents: Geology of the Alpine...J.L. Gualtieri and George C. Simmons- [etc.] 1. Mines and mineral resources-Washington (State)-Alpine...Geological Survey (U.S.). II. United States. Bureau of Mines. III. Series: IV. Series: Geological Survey bulletin;...the U.S. Geological Survey and the U.S. Bureau of Mines have been making mineral surveys of wilderness and |
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| Mississippian Stratigraphy and Sedimentology, Canyon Creek (Moose Mountain), Alberta . Devonian Stratigraphy...visits to three active mines in southeastern British Columbia: the Byron Creek Collieries Limited mine...thermal-electric generating plants (e.g., Byron Creek Collieries Ltd.) and for coke production in the...many other localities including the three major mines (Stops 9, 10, and 11). The Morrissey Formation can...generally cliff-forming Cadomin Formation or Pocaterra Creek Member of the Blairmore Group above (Fig. 2). The |
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| Gravel-plain placers_________________________ 144 Creek placers____ ^ - * { ! ', 144 River-bar placers___...Reconcentrated gravel-plain placers__________ Bar, creek,' and bench placers of the upland_________ Nome...placers north of Anvil Peak_______ ._ Dry-Dexter Creek divide___________________ General conclusions___________...________ GEOLOGY AND MINERAL RESOURCES OF IRON CREEK, mr PHILIP S. SMITH___% Introduction __________...at low tide, Nome; B, Characteristic creek valley: Thompson Creek, tributary of Stewart Ri,ver_____ 58 |
