 | | Report (issue) | | Bedded Iron Deposits of the Southwestern Ruby Range, Montana , , 'A " U,S. GEOLOGICAL SURVEY PROFESSIONAL...Bedded Iron Deposits of the Southwestern Ruby Range, Montana By HAROLD L. JAMES With a section on THE...THE KELLY IRON DEPOSIT OF THE NORTHEASTERN RUBY RANGE U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1495...and mineral deposits of the southwestern Ruby Range, Montana UNITED STATES GOVERNMENT PRINTING OFFICE...bedded iron deposits of the southwestern Ruby Range, Montana. (U.S. Geological Survey professional paper |  | | Journal (article/letter/editorial) | | the Kelly and Carter Creek areasof the Ruby Range,southwestern Mineral assemblages Montana, indicate o...orthopyroxene-zoneand sillimanite-K feldspar-zonemetamorphism,respectively.Becausethe two areasare small...consensuspeak temperature estimateof 745+50"C. For the Carter Creek area, garnet-clinopyroxene,garnethornblende...ind mineral assemblagesin two areas within the Ruby Range, southwesternMontana. These two areas,designatedin...designatedin Figure I as the Kelly and Carter Creek areas,are particularly well-suited to the proposedstudy |  | | Journal (article/letter/editorial) | | metamorphic lithologies from two small areas in the Ruby Range, southwesternMontana, has been studied by electron...Saxena(1979) yield anomalously high timperatures for the Ruby Range. If this result is observedin other upperamphibolite...pairs in natural assemblages from the Ruby Range, southwestern Montana (Fig. l). Potentially the most useful...considerations in mind, two small areas in the Ruby Range were chosen for study. These areas, designated...designated in Figure I as the Kelly and Carter Creek areas, ate I km2 and 9 km', respectively. Coexisting garnets |  | | Journal (article/letter/editorial) | | somemetamorphic Precambrian iron-formations in southwestern Montana INon P. Itr.fir,Igce eNo CoRtrlgt-IsKLEIN, JR....iron-formations from the Tobacco Root and Ruby Mountains and the Gravelly Range of southwesternMontana were studied...o f t h e R u b y Mountains, though still of sillimanite grade, are inferred to have been metamorphosedat...associatedwith the iron-formation in the Ruby Creek area of the Gravelly Range are of chlorite grade. The high...feldspar. Similar assemblages from the Carter Creek area of the Ruby Mountains are relatively amphibole-rich |  | | Report (issue) | | Deposits of the Tobacco Root Mountains, Southwestern Montana GEOLOGICAL SURVEY PROFESSIONAL PAPER 1187...Deposits of the Tobacco Root Mountains, Southwestern Montana By HAROLD L. JAMES GEOLOGICAL SURVEY PROFESSIONAL...deposits of the Tobacco Root Mountains, southwestern Montana. (Geological Survey professional paper ; 1187)...Supt. of Docs. no.: I 19.16:1187 1. Iron ores--Montana--Tobacco Root Mountains. 2. Geology, stratigraphic-Pre-Cambrian...__________________________________ 12 Carmichael Creek (2) ____________________________________ 13 Boulder |  | | Report (volume) | | /Reconnaissance of . Parts of Beaverhead 4 and Madison Counties Montana GEOLOGICAL SURVEY BULLETIN 969-C A...RECONNAISSANCE OF PARTS OF BEAVERHEAD AND MADISON COUNTIES, MONTANA BY M. R. Klepper ABSTRACT This report...miles in parts of Beaverheacl and Madison Counties, southwestern Montana. The area lies between parallels...of the Snowcrest Range, the southern part of the Ruby Range, the upper part of Ruby River Valley, and...Cherry Creek group and in part to the Pony series of Tansley, underlie the southern part of the Ruby Range |  | | Report (issue) | | Virginia City mining district), Madison and Beaverhead Counties, southwest Montana: Mineral-resource and mineral-environmental...mining district Blacktail mining district Cherry Creek mining district Chinatown mining district Horse...Red Bluff mining district Revenue mining district Ruby Mountains mining district Sheridan mining district...Resource Area. Figure 2. Mineral localities in Madison and Beaverhead Counties plotted by mining district...McDonough, 1989). A. Copper Mountain and Carter Creek deposits. B. Ruby (Johnny Gulch Iron) and Black Butte |  | | Journal (article/letter/editorial) | | with 49 natural high-Mn granulites from Ruby Range, Montana, USA, and Karnataka, India, yields the P–T...content of the co-existing clinopyroxene in the range XCpx=0–0.51. Comparisons between the new and former...their application to the Mn-rich samples from Ruby Range (Dahl, 1980) still show a regular decrease in...Data from Mn-rich natural assemblages Ruby Range, Montana, USA Dahl (1980) presented data for 10 garnet–clinopyroxene...from Kelly and three from Carter Creek, both in the Ruby Range, Montana, USA. Variations of garnet compositions |  | | Journal (article/letter/editorial) | | PEGMATITES OF E. WM. MONTANA. • HEINRICH. CONTENTS. PAGE Abstract .......................................................................... Montana pegmatite................................................................................ Stone Creek pegmatite................................................. Horse Creek quartz-dioritepegmatites............................. Mica Creek peridotitepegmatite............................................ Gird Creek pegmatites..................................... |  | | Journal (article/letter/editorial) | | Petrogenesisand Timing of Talc Formation in the Ruby Range, SouthwesternMontana DALE L. ANDERSON,*DAVID...Abstract Talc depositsin the RubyRange,southwestern Montana,haveformedin Archeandolomitic marblesthat were...sixtalc prospectsin the RubyRange,southwestern Montana,havebeenstudied in detail to developa modelfor...TobaccoRootMountains, Highland Mountains, Gravelly Range, and GreenhornRangeacrosssouthwesternMontana (Fig...(Fig. 1; Berg, 1979; and referencestherein). In the Ruby Rangetwo talc minesare currentlyin production:the |  | | Report (issue) | | Assessment of the Dillon 1 ox 2° Quadrangle, Idaho and Montana AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL...of the Dillon 1 o x 2° Quadrangle, Idaho and Montana By ROBERT C. PEARSON, CHARLES M. TRAUTWEIN, EDWARD...assessment of the Dillon 1Montana I by Robert C. Pearson ... [et al.]. p. em.- (U...Assessment of the Dillon 1o x 2° Quadrangle, Idaho and Montana By Robert C. Pearson, Charles M. Trautwein, Edward...ABSTRACT The Dillon 1"x2° quadrangle in southwestern Montana and east-central Idaho was investigated as part |  | | Report (volume) | | Mountain Wilderness Study Area and Extension, Buncombe County, North Carolina By F. G. LESURE and A. E. GROSZ...Mountain Wilderness Study Area and Extension, Bunc1m County, North Carolina. (Geological Survey bulletin ;...studied is in the Pisgah National Forest in Buncombe County. CONTENTS Page Summary -------------------...Mountain Wilderness Study Area and Extension, Buncombe County, N.C _____________ In pocket FIGURE 1. Index map...--------------------------------3. Upper falls of Waterfall Creek, Craggy Mountain study area__ 4. Irregular granitic |  | | Journal (article/letter/editorial) | | Colorlesssapphirine(2.40wtVoFeO) with overgrowthsof sillimanite is associatedwith orthopyroxene,q\aftt, biotite...representthe univariant reaction sapphirine+ quartz : sillimanite + orthopyroxenein the iron-free systemand may...granulites, quartzites,and gneisses.Garnet, sillimanite, biotite, cordierite, spinel (and rare corundum)...sapphirine-quartz is not true, converse found in some sillimanite-orthopyroxene terrains ite, rutile, and minor...sampled at locality 2064. Quartzite containing sillimanite and biotite from locality 459, Reference Peak |  | | Journal (article/letter/editorial) | | applied to metabasites and the garnetplagioclase-sillimanite-quartz geobarometer is applied to a metapelite...orthopyroxene plagioclase PY PYroPe quartz qtz sillimanite sill spess spessartine alm an CPX fs gross gt...and the metabasites. They are migmatized, and sillimanite is the stable aluminosilicate throughout. Amphibolite...pelitic and psammitic metasediments, which are sillimanite-free. In Bamble. the largest and best known granulite...in Table 1. The chosen samples span the entire range of variation in the Arendal metabasite suite in |  | | Report (volume) | | Rolla, Mo. Mont. Bur. Mines and Geology Inf. Circ.-Montana Bureau of Mines and Geology Information Circular...Adcock, Floyd Jones. P. W. C[urrey] field, Runnels County, Texas, in Abilene Geol. Soc., Geological contributions...Joseph Victor). X-ray crystallography of mullite, sillimanite and praguite [abs.] : Acta Crystallographica...Akmal, M. Gawid. The White (Multi-Pay) pool, Taylor County, Texas., in Abilene Geol. Soc., Geological contributions...2. Geology of Walnut Wells quadrangle, Hidalgo County, New Mexico [abs.]: Geol. Soc. America Bull., v |  | | Report (volume) | | Mayr, E., 2. Davis, M. J., 1. Boulder batholith, Montana: Knopf, Various species: Link, T. A., A., 9. 13...Hershey, H. G. , 2. scale: Spieker, E. M., 3. Iron-range rocks, origin: Tanton, Distribution in geologic...described. Div. Mines, 1; Jenkins, O. P., Choctaw County, Highway 17 area: 3. Toulmin, L. D., Jr., 3. Minor:...analysis: KelH. D., 5. ler, W. D., 3. Talladega County, hematiteOklahoma, potash agstone, granite magnetite...ground water: Powham, C. E. ell, W. J., 4. Marengo County: Newton, J. G., 1. Core-drilling program, ChattanooMica: |  | | Report (issue) | | ________________ Montana iron deposits.__-__________-_-Chromite deposits of the Stillwater complex, Montana-______________________...Manganese and zinc deposits near Philipsburg, Montana.______________________ Studies in Colorado. ____________________...Beryllium in the Mount Wheeler area, White Pine County, Nevada-__________ Beryllium in the Lake George...Coastal plain, Texas. ___________________ Front Range, Colorado,__-_-----____---_ Powderhorn district...Development of the Fredonia anticline in Wilson County, Kansas._________________________ 22 Austin chalk |  | | Report (issue) | | Wilderness study area, Montana, and Blue Joint Roadless Area, Idaho See Montana 17 Boulder-Pioneer Wilderness...Centennial Mountains Wilderness study area, Montana and Idaho See Montana 6 Hells Canyon Study Area, Oregon and...Italian Peak Middle Roadless Areas, Idaho and Montana 19 Mount Naomi Roadless Area, Utah and Idaho See...Scotchman Peak Wilderness study area, Montana and Idaho See Montana 3 Selkirk Roadless Area 5 Selway-Bitterroot...Selway-Bitterroot Wilderness, Idaho and Montana 9 Special Mining Management Zone Clear Creek 13 2 18 15 Ten Mile West |  | | Report (volume) | | 6. Thickness--In meters at the type section; a range is given if known. 1. Texture, structure, distinctive...phyllitic and pyritic quartzite intervals 5. Gray 6. Range 1500-2100 m 9. Overlies Heflin Phyllite (Talladega...Cleburne County. Absaroka Supergroup/Volcanic Supergroup U ABRK03 1. Eocene 2. Wyoming (NW), Montana 3. Smedes...m 8. Washburn Group, Sunlight Group, Thorofare Creek Group g. Unconformably underlies Junction Butte...volcanic field, Yellowstone National Park, Park County, Wyo. Academy Church Shale Member (Springer Formation) |  | | Report (volume) | | 74, Ph miles east of Dutchtown, Cape Girardeau County, Mo. Type section cut by northtrending fault with...stream in NEIA sec. 33, T. 16 N., R. 14 E, Wayne County. Named after village of Abington, about 3 miles...Wildman, Smith, and Darrah Farm sections. Abrahams Creek Member (of Pocono Formation) Mississippian: Central...body of calcareous sandstone designated Abrahams Creek Member. Achiote Conglomerate Achiote Member (of...Mountains, Humboldt County. Occupies belt about 21f2 miles long on western slope of range west of Adam Peak |  | | Report (issue) | | financially in part by, the numerous Federal, State, County and City agencies listed on pages A133 to A136...Michigan.___________________ Iron deposits in Montana....____________ Iron deposits in Nevada_________________...___________________ Mineral deposits near Philipsburg, Montana. _______________________________ Copper-zinc deposits...deposits in Florida.___________ Phosphate nodules in Montana.___________ Potash deposits in the Carlsbad district...--------------Migration of uranium in the Hulett Creek area, Wyoming._---.-_--------------Mount Spokane |  | | Book | | 155 Axinite Topaz Sillimanite Group 156 157 159 General Andalusite Sillimanite Mullite Kyanite 159...general range for translucent minerals is n = 1.31-2.7, but most have refractive indices in the range 1.45-2...45-2.0. The minerals in the lower part of this range have various types of nonmetallic lusters; toward...combination of ideal properties throughout the index range of the common nonopaque minerals. Formerly, different...are listed in Tables 2.1 and 2.2 for the lower range of indices. ; GENERAL INFORMATION 6 TABLE |  | | Journal (article/letter/editorial) | | model (Guggenheim,1967)within the compositional range of an isothermal-isobaric suite of samples, and...Iron Formation along with those from adjacent Carter Creek Area. However, as the inferred equilibration...models,respectively. These values are within the range of 4176" values derived from the Fe-Mg fractionation...Ca)-garnetsolid solution for the compositional range encountered in the natural assemblages.We have,...symbols: kyanite bearing assemblages;open symbols: sillimanite bearing assemblages.The data for the assemblageswithin |  | | Book (volume) | | 01225 442836) Distributors USA AAPG Bookstore PO Box 979 Tulsa OK 74101-0979 USA (Orders: Tel. (918) 584-2555...analyses representative, wherever possible, of the range of chemical and paragenetic variation. From most...The M4 sites however can be octupied by a wider range of cations and their sizes determine the way in...anthophyllite and cummingtonite near Chester, Vermont, USA, and which have regularly repeating sequences of...minerals of the group exhibit an extremely wide range of chemical composition. The composition of the |  | | Report (volume) | | Underlies Church limestone member; overlies Bachelor Creek limestone member. M. R. Mudge, C. P. Walters, and...Bull. 1060-D, p. 193, 252-253, pl. 7. In Nemaha County, Kans., member is basal unit of Howard limestone...Aarde farm, sec. 4, T. 26 S., R. 11 E., Greenwood County. Aaron Slatet Precambrian or Paleozoic: Central...Precambrian. Well exposed at many places along Aaron's Creek, Person and Granville Counties, N.C. Abbott Formation...Babylon sandstone, Manley coal, Tarter coal, Pope Creek coal, and Bernadotte sandstone. Report presents |
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