 | | Journal (article/letter/editorial) | | Amcnnpijiite: In the Emery Mining district (Powell County) the mineral is found in wellformed crystals in...Crevasse Mountain Mining district near Jardine (Park County). At the Kennebec mine in the Crevasse Mountain...the Crevasse Mountain district near Jardine (Park County) on the Vindicator claim, one-half inch tabular...cummingtonite. In the Hog Heaven Mining district (Flathead County) at the Flathead Mine, pale yellowish to colorless...property, accessible by county road. MINERALS Andakisite: Near Dillon (Beaverhead County) in Axes Canyon, |  | | Report (issue) | | University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Conservation and Survey...Gemstones of Nebraska: A Handbook for Students and Collectors Roger K. Pabian University of Nebraska - Lincoln...Lincoln, rpabian1@unl.edu Allan Cook University of Nebraska - Lincoln Follow this and additional works at:...K. and Cook, Allan, "Minerals and Gemstones of Nebraska: A Handbook for Students and Collectors" (1976)...Resources, School of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion |  | | Report (volume) | | Geology of the , Dry Mountain Quadrangle , Jefferson County, Montana By HAROLD J. PROSTKA -/ , CONTRIBUTIONS...GEOLOGY OF THE DRY MOUNTAIN QUADRANGLE, JEFFERSON COUNTY, MONTANA By HAROLD J. PROSTKA ABSTRACT This report...Dry Mountain quadrangle (fig. 1) is in Jefferson County northwest of the town of Whitehall and about 25...euhedral to subhedral phenocrysts of calcic labradorite zoned outward to oligoclase, accompaned by clinopyroxene...about 50 percent plagioclase zoned from calcic labradorite to oligoclase, 15 percent potassium feldspar |  | | Journal (article/letter/editorial) | | now been confirmed by KAr methods: biotite and labradorite phenocrysts are both 74 + 4 m.y. Glass groundmass...altered. The feldspar is plagioclase, zoned from labradorite cores to mid-andesine rims; locally, it is embayed...rhyodacite (col. 6). A rock with abundant modal labradorite, however, cannot be called "average rhyodacite...more mafic: the feldspar phenocrysts are wholly labradorite, and the dark phenocrysts are augite, hornblende...(2 per cent) and phenocrysts (3 per cent) of labradorite, biotite, augite, and hypersthene, in order of |  | Klepper, Montis Ruhl, Ruppel, E.T., Freeman, V.L., Weeks, R.A. (1971) Geology and mineral deposits, east flank of the Elkhorn Mountains, Broadwater County, Montana. Professional Paper 665. US Geological Survey doi:10.3133/pp665 | Report (issue) | | Deposits, East Flank of the Elkhorn Mountains, Broadwater County, Montana GEOLOGICAL SURVEY PROFESSIONAL ...Deposits, East Flank of the Elkhorn Mountains, Broadwater County, Montana By M. R. KLEPPER, E. T. RUPPEL, V...DEPOSITS, EAST FLANK OF THE ELKHORN MOUNTAINS, BROADWATER;COUNTY, MONTANA By M. R. KLEPPER, E. T. RUPPEL...corner of the area. Townsend, the seat of Broadwater County, is on the highway and railroad about 6 miles...~and otJhers, ing :production data for mines in Broadwater CounJty. 1957). Those in rthe eastern outcrop |  | | Book (volume) | | Idaho, lowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, — ; Oregon, South Dakota, Washington...Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oregon, South Dakota, Washington...Idaho, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, Oregon, South Dakota, Washington...Idaho lowa Kansas Minnesota Missouri Montana Nebraska North Dakota Oregon South Dakota Washington ...volumes, through very precise directions and accurate county maps, to get you to the best and most accessible |  | | Report (volume) | | » Geology of Part of the Townsend Valley Broadwater and Jefferson Counties,x Montana GEOLOGICAL SURVEY...GEOLOGY GEOLOGY OF PART OF THE TOWNSEND VALLEY BROADWATER AND JEFFERSON COUNTIES, MONTANA By V. L. FREEMAN...miles in Broadwater County and about 15 square miles in, Jefferson County. Townsend, the county seat of...of Broadwater County with a population of'about 1,300, is situated along the Missouri River near the east...road extends westward to Radersburg. Maintained county roads are present along Indian Creek, in the Limestone |  | | Report (volume) | | Resources of the Elkhorn Wilderness Study Area, Broadwater and jefferson Counties, Montana U.S. GEOLOGICAL...Resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana By WILLIAM R...resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana. (Studies related...the Helena and Deerlodge National Forests in Broadwater and Jefferson Counties. CONTENTS Summary 1...Resources of the Elkhorn Wilderness Study Area, Broadwater and Jefferson Counties, Montana By William R |  | | Report (issue) | | Northern Elkhorn Mountains I I Jefferson and Broadwater Counties, Montana GEOLOGICAt ' SURVEY PROFESSIONAL...the Northern Ell(horn Mountains Jefferson. and Broadwater CountieS, Montana By HARRY w. SMEDES GEOLOGICAL...THE NORTHERN ELKHORN MOUNTAINS JEFFERSON AND BROADWATER COUNTIES, MONTANA BY HARRY ABSTRACT The northern...East Helena 15-minute quadrangle, Jefferson and Broadwater Counties, Mont. (fig. 1), a total of about 132...is bounded on the north by the Lewis and Clark County line and on the west by long. Ill 0 52'30". The |  | | Journal (article/letter/editorial) | | Silver, Wolverine mine, Kearsarge lode, Keweenaw County, Michigan. William Severance specimen, Jeff Scovil...(Hallelujah Junction), Petersen Mountain, Washoe County, Nevada. Paul Geffner specimen, Jeff Scovil photo...November/December: Millerite, Sterling mine, Antwerp, Jefferson County, New York. National Museum of Natural History (Smithsonian...Minerals from the Huron River Uranium Prospect, Baraga County, Michigan, 298–308 Bornite, Michigan, 302 Brachiopods...Plant Fossils from the Cahaba Coal Field, Jefferson County, Alabama, 227–29 Beraunite, Alabama, 235 Beryl |  | | Report (issue) | | Elkhorn wilderness study area, Jefferson and Broadwater Counties, Montana Aeromagnetic anomaly map for...the Helena and Deerlodge National Forests in Broadwater and Jefferson Counties. SUMMARY The mineral...producing ore during the study. Jefferson and Broadwater County records show that 1,106 lode and 275 placer...Forest Service (pi. 1). The area is in parts of Broadwater and Jefferson Counties, western Montana, and...lithophysal. It contains sparse phenocrysts of labradorite, pyroxene, and an opaque mineral, probably magnetite |  | | Journal (issue) | | -high specimen is from the DeMaria mine in Placer County, California. (Jeff Scovil Photo/Brett Keller collection)...Wholesale and retail show; Gem Faire Inc.; Lane County Events Center; 796 W. 13th Ave.; Fri. 12-6, Sat...4-6—FARMINGTON, NEW MEXICO: Annual show; San Juan County Gem & Mineral Society; Civic Center; 200 W. Arrington;...ONTARIO, CANADA: 3rd Annual Show; Prince Edward County Rock, Gem & Mineral Club; Crystal Palace; Picton...(rules on Web site); contact John Zandarin, 537 County Road 35, RR2, Picton, ON, Canada K0K 2T0, (613) |  | | Report (volume) | | Maudlow is restricted to the Maudlow area in Gallatin County, just west of the Sedan outcrops. The Sedan Formation...in sees. 6,7,17, and 18, T. 4 N., R. 8 E., Park County. The age of the formation is Late Cretaceous, Campanian...mi2) near Maudlow, Mont., in northeastern Gallatin County. The formation has been Bl B2 CONTRIBUTIONS...quadrangle and southern Sixteen NE quadrangle, Park County. The Sedan Formation is subdivided into four informal...in sees. 6, 7,17, and 18, T. 4 N., R. 8 E., Park County, Mont., in the southeastern corner of the Sixteen |  | | Report (issue) | | phenocrysts, with a maximum length of 2 mm., of labradorite, biotite, and an opaque mineral, probably magnetite...Mines and mineral deposits (except fuels) Broadwater County, Montana: Bureau of Mines Information Circular... (1950), Geology of the Limestone Hills, Broadwater County, Montana: In open files of the U. S. Geological |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Report (volume) | | ....................................... 180 Nebraska.................................................Nebraska____.Prof. E. H. Barbour, University of Nebraska, Lincoln. Nevada_____Dr. W. S. Tangier Smith,...See Bauxite and Halloysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities : Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20 S., R. 7 E.; |  | | Report (volume) | | Bisbee Group, Empire Mountains quadrangle, Pima County, Arizona, by Tommy L. Finnell-_______________________...olivine and plagioclase (labradorite) in an intergranular groundmass of labradorite microlites, olivine,...BISBEE GROUP, EMPIRE MOUNTAINS QUADRANGLE, PIMA COUNTY, ARIZONA By TOMMY L. FINNELL A thick sequence...of Bardstown, Nelson County, Ky. The type section (fig. 3) is in Nelson County, Ky., in the southwest...35 miles northwest of Fredericktown, Washington County, Ky., and 0.95 mile from the west border of the |  | | Report (issue) | | mines, particularly in the northern portion of the county. Large bodies of gravel of lower grade yet remain...particularly to Mr. H. L. Lowden, formerly county surveyor of Trinity County, who through many years by maps and...the whole of Trinity County except the south end and also the part of Humboldt County about the Hoopa Reservation...conglomerate of the Cottonwood mining district of Siskiyou County, Cal.," and recently G. F. Kay 3 and others have...Salt office. Paskenta, Lassen Creek. Tehama County. County. BlOt....... ............................ |  | | Report (volume) | | Lewis and Clark Co. 2. Geology Montana Cascade County. 3. Mines and mineral resources Montana Lewis and...4. Mines and mineral resources Montana Cascade County. I. Title. II. Series: United States. Geological...of the area is in Cascade County; the remainder is in Lewis and Clark County. The town of Wolf Creek,...porphyritic and consist of small phenocrysts of labradorite and augite in a microcrystalline groundmass of...augite, quartz, magnetite, and apatite. The labradorite phenocrysts are 1 to 4 mm long, weakly zoned |  | | Book | | interesting one, is the rocks and minerals of your county or state. It’s amazing how many people are ignorant...Falls, Valley, Washington. Montana: Beaverhead, Broadwater, Deer Lodge, Fer- gus, Granite, Jefferson...become involved with various federal, state, and county laws and regulations regarding mining. For serious...petrified wood, and geodes can be found in Jackson County and at other locations. KANSAS is basically high...gravel pits elsewhere. Garnets are found in Elliott County. LOUISIANA is largely an area of flood plains made |  | | Journal (article/letter/editorial) | | containing numerous boulders of Potsdam sandstone, labradorite, gneiss, hypersthene-rock, &c.,from the Laurentine...beds of the same age extended to Shoreham and Broadwater, near Worthing; whilst Mr. Godwin-Austen + has |  | | Report (volume) | | percent euhedral to subhedral plagioclase, mostly labradorite, and about 30 percent subhedral to anhedral augite;...the formation is widely distributed in Meagher County which includes most of the area of the Little Belt...indentification below is by Prof. T. M. Stout, of the Nebraska University Geology Department and State Museum...upper part of the Hemingford group (Lugn, 1938) of Nebraska. The stratigraphic position within the Hemingford...the southern Elkhorn Mountains Jefferson and Broadwater Counties, Montana: U.S. Geol. Survey Prof. Paper |  | | Report (volume) | | A. Buehler, Rolla. Nebraska.........Prof. E. H. Barbour, University of Nebraska, Lincoln. Nevada......See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson...Jefferson County, at Elyton; Lee County, at Chewacla lime works; St. Clair County, at Gfeensport; Shelby |  | | Report (issue) | | Geology of the Yankton Area South Dakota and Nebraska GEOLOGICAL SURVEY PROFESSIONAL Prepared as part... Geology of the Yankton Area South Dakota and Nebraska By HOWARD E. SIMPSON GEOLOGICAL SURVEY PROFESSIONAL...GEOLOGY OF THE YANKTON AREA, SOUTH DAKOTA AND NEBRASKA Page Stratigraphy Continued Recent deposits Continued...Geologic map of the Yankton area, South Dakota annd Nebraska. Migration of the principal channel of the Missouri...Index map of the Yankton area, South Dakota and Nebraska..Diagram showing direction of wind, in percent |
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