 | Boer, R. H., Meyer, F. M., Robb, L. J., Graney, J. R., Vennemann, T. W., Kesler, S. E. (1995) Mesothermal-type mineralization in the Sabie-Pilgrim's Rest gold field, South Africa. Economic Geology, 90 (4) 860-876 doi:10.2113/gsecongeo.90.4.860 | Journal (article/letter/editorial) | | Mesothermal-Type Mineralization in the Sabie-Pilgrim's RestGoldField,SouthAfrica R. H. BOER, Economic...differentclass of mesothermal golddeposit at Sabie-Pilgrim's Restwhichis probably associated withtheBushveld...estimates indicate that the ore fluidsof the Sabie-Pilgrim's Restgoldfield,whichoccurs withinthe EarlyProterozoic...However, a numberof features distinguish the Sabie-Pilgrim's Restoresfromtypicalmesothermal deposits: (1) thepresence...cleargeneticlink.Characteristic features of the Sabie-Pilgrim's Restgoldfieldthatcorrespond to thosewithintheabovespectrum |  | | Journal (article/letter/editorial) | | architecture of the Early Devonian Ural Volcanics, New South Wales a K. F. Bull & J. McPhie a a Centre for...architecture of the Early Devonian Ural Volcanics, New South Wales, Australian Journal of Earth Sciences: An...architecture of the Early Devonian Ural Volcanics, New South Wales K. F. BULL* AND J. MCPHIE Downloaded by [Tufts...exposed in the western central Lachlan Orogen, New South Wales. The Ural Volcanics and underlying Upper Silurian...sandstone to conglomerate, black mudstone, micaceous quartz sandstone and foliated mudstone. The succession |  | | Journal (article/letter/editorial) | | probably loess deposited during glacial advances by south winds blowing from the glaciated Alaska Range across...disintegration of local country from drill hole near the top of College rock 716 Hill, Fairbanks, Alaska...tpw**^ Summary of eolian hypothesis 722 different hill tops near Fairbanks 719 Age and correlation 722...2. Volcanic ash bed and upland silt 712 College Hill near Fairbanks, Alaska 710 3. Chemical analyses...Physiography and Geology Fairbanks, about 100 miles south of the Arctic Circle, is on the north side of the |  | | Report (volume) | | Geology and Uranium Occurrences in the Miller Hill Area Carbon County Wyoming By JAMES D. VINE and GEORGE...pocket] Page PLATE 14. Geologic map of the Miller Hill area. 15. Basal conglomerate of the North Park(...18. Iso~adioactivity map of a part of the Miller Hill area. 19. Map showing sampled localities, test pits...pits, and uranium content in a part of the Miller Hill area. 20. Photomicrographs of minerals from the...of events during late Tertiary history of Miller Hill area _______________ 12. Map showing sampled lo |  | | Journal (volume) | | Geologist C. A. Logan, District Mining Engineer O. McK. Laizure, District W. Burling Tucker, Reid...Engineer District Sampson, Assistant Mining Engineer Los Angeles Los Angeles District Engineer ... Chas. V. Averell, District Mining Engineer Frank Sanborn, Mineral John F. Bongard, Ore-Buyers' Inspector...Reports of District Mining Engineers 7 Redding Field District 7 Sacramento Field District 7 San Francisco...Francisco Field District 7 Los Angeles Field District 7 Geologic Branch 8 Current Notes 8 Source |  | | Report (issue) | | fault....? Upper member of Truckee Formation west of Hill^4-561 fault...? Conglomerate and gravel unit..................................... 16 Left-lateral Hill-4561 fault.................................................................... 9 6. Photograph of Hill 4561 showing drag fold and left-lateral fault. Dark...Diagram showing correlation of ash-fall tuffs in Hill^4-561 area.......15 8. Diagram showing correlation...11 m.y. ago. A major north-south-striking fault, here referred to as the Hill-4561 fault, cuts across the |  | | Report (volume) | | Branch of Distribution, U.S. Geological Survey, 1200 South Eads Street, Arlington, VA 22202 CONTENTS Page...and used agate, chalcedony, and other forms of quartz for weapons and tools; they used clay for pottery...for decorations, and they cherished crystals of quartz or other minerals as amulets. After the Indians...other minerals, for they surely recognized the quartz sand, brilliant garnets, and magnetic concentrates...galena that had been recently found in the Tenmile district, Summit County. In his booklet, which today would |  | | Report (issue) | | & Water Management FRONT COVER Top: Ryan Lode Mine gold recovery plant and heap leach pads bask in...investigates a silver prospect in the Chulitna mining district during a DGGS mapping project in July 1997, to...Brobst marks ore zone on face in the Greens Creek Mine on Admiralty Island west of Juneau, Alaska. Photo...years. Greens Creek Mine reached full production in 1997, and the giant Red Dog Mine will soon increase...bars poured at the Fort Knox Mine near Fairbanks, December 20, 1996. The mine produces about 1,000 ounces |  | | Report (issue) | | feasibility of mining in the Valdez Creek Mining District, Alaska. [Anchorage, Alaska?] : U.S. Dept. of...dikes of the Hunting Hill serpentine mass, Montgomery County, Maryland : Hunting Hill Quarry, Maryland,...mineral deposits of the Mineral-Iron Mountain District, Washington County, Idaho, and of a metallized...008 W743p 1978 D only AFRICA MAPS. A Bouguer gravity anomaly map of Africa. St. Louis : Defense Mapping...Society, c!990. M (700)585 1990n 910101-910131 Africa Africa GIS GISS Main United States. Central Intelligence |  | | Journal (article/letter/editorial) | | Implications for the Central Gawler Gold Province, South Australia ANTHONY R. BUDD†AND ROGER G. SKIRROW...Australia Abstract The Tarcoola goldfield in central South Australia is hosted by the Paleoproterozoic Paxton...deposit in the Tarcoola goldfield is hosted by quartz veins in both granite and the lower parts of the...Formation. Primary fluid inclusions from mineralized quartz veins at Perseverance are dominated by two-phase...150° and ~340°C. They occur together in single quartz grains, which suggests the coexistence of aqueous |  | | Report (issue) | | LOGS OF HOLES DRILLED IN THE DOTY MOUNTAIN, BROWNS HILL, AND BAGGS QUADRANGLES, CARBON COUNTY, WYOMING...Mountain quadrangle, Carbon County, Wyoming 2. Browns Hill quadrangle, Carbon County, Wyoming 3. Baggs quadrangle...LOGS OF HOLES DRILLED IN THE DOTY MOUNTAIN, BROWNS HILL, AND BAGGS QUADRANGLES, CARBON COUNTY, WYOMING...14, 15, and 16 N., R. 90 W., Doty Mountain, Browns Hill, and Baggs quadrangles, Carbon County, Wyo. (fig...holes drilled by the U.S. Geological Survey in the Browns Kill quadrangle, Carbon County, Wyoming, during |  | | Journal (issue) | | secretary@emgs.org.uk Mercian Geologist is printed by John Browns, and is published by the East Midlands Geological...vertical vein in the Long Rake Mine, near Youlgreave, in the Derbyshire Peak District, has left this large open...Palaeoecology of Portlandian gastropods from the South Midlands 154 155 156 158 159 190 161 173 185...Excursion Reports Marlstone Rock: Keith Ambrose Local churches: Albert Horton Southwell Minster: Ian Thomas...Peak District, and I was intrigued by the minerals and crystals that we collected from lead mine dumps |  | | Report (issue) | | County, California Hupp Mine on Nimshew Ridge Gravel Bank at Australia Mine Gopher Hill Diggings Nelson Creek...County Flume at Morington Mine, Middle Fork, Feather River Derrick at Morington Mine, Middle Fork, iFeather...River Gibraltar Mine, Sierra County Basalt Intrusions at Port Wine, Sierra County Poverty Hill, Sierra County...County Close-up of Poverty Hill Gravels Gravel at Scales, Sierra County Characteristic Glacier on Alaskan...Mining 128 _-Districts 142 Profile of the Tertiary South Yuba and American Rivers Geologic Chart appertaining |  | | Report (issue) | | _______________________ Wyoming. _____------_-________________ South Dakota. __ _______________________ Nebraska. __...________________ 217 Regional offices _---- _-- ---_- _-_217 District offices__-___----___-_-__ ____ 217 Offices in...original silt grains and to a lesser extent in quartz-filled microfractures and in hematitegeothite pseudomorphs...gold-ore bodies presentry exposed in the Carlin mine are in extensively altered shaly limestones. In...Mountains Limestone, below the present exposures in the mine, adds substantially to the potential gold production |  | | Report (issue) | | Bridger Pass 15-minute quadrangle which is located in south-central Wyoming in the west-central portion of...Divide Basin, crosses the quadrangle from north to south, following along Hogback Ridge and crossing to...the spring. Climate and Vegetation The climate of south-central Wyoming is semiarid, characterized by low...characteristic blanket-like form as far south as the Browns Hill quadrangle. The Pine Ridge Sandstone...red, and gray chert pebbles, and pink and white quartz in a matrix of coarseto medium-grained sandstone |  | | Report (issue) | | guide/expert for Tom Patton at the Commonwealth Mine; Stan Keith and Jan Wilt of Phoenix and Tucson,...Minerals, for agreeing to let us visit the Commonwealth Mine; Roger Newell, of Newmont, for coming all the way...Tombstone district. 1 0: 1 5 a.m. to 1 .00 p.m. and Roger Newell. Stop 4. Tour the Tombstone district with...trip to Bisbee Elks Park which is about five miles south of Bisbee. Sunday, October 23, 1988. 8: 1 5 a...Commonwealth Mine. 1 : 1 5 p.m. to 3: 1 5 p.m. guide. Stop 8. Tour the Commonwealth Mine with John Guilbert |  | | Report (issue) | | object shown here actual size. Pho'o by Mary Hill. FOREWORD This bulletin number is is an overall...longer district Hulin, respectively. the principal features of each gold-bearing district are described...S. Commissioner of Mineral prepared reports of mine production and gold-mining Bureau, and later now...John Albers, Josiah S. Diller, H. G. Ferguson, D. Hill, J. J. Geological Survey, especially to the three...Mining Disfricfs of fhe Western United States (Hill, a special source of data. Information on the earlier |  | Stewart, John H., Sarna-Wojcicki, A. M., Meyer, C.E., Wan, Elmira (1999) Stratigraphy, tephrochronology, and structural setting of Miocene sedimentary rocks in the Cobble Cuesta area, west-central Nevada. Open-File Report Vol. 1999 (99-352) US Geological Survey doi:10.3133/ofr99352 | Report (issue) | | Paleocurrent studies indicate transport directions to the south. Apparent unconformities in the Miocene strata suggest...sorted. It is composed of subangular to subrounded quartz, feldspar, pumaceous material, volcanic lithic...from eruptions in the Snake River Plain JS-92-67, local tuff, correlative with rocks in the Aldrich Station...source in Little Walker River Caldera. 2-96-47J, local tuff (probably lower than JS-92-67, but not certain)...chemical correlation to other tephra. 2-96-38J, local tephra layer, about halfway between tephra layer |  | | Report (issue) | | its errors. St. Paul, Minn. : U.S Army Engineer District, 1989. P(200) F18ra rept.JJ Turner, Robert L....K. : British CHAIN 0'LAKES STATE PARK (IND.). Hill, John R. Geologic story of Chain 0'Lakes State Park...estuary. [West Palm Beach, Fla.] : South Florida Water Management District, Resource Planning Dept., Water...Dept. of Research and Evaluation, South Florida Water Management District, [1990] 516(234) T745a 1990 DROUGHTS...mechanisms, and velocity structures in the Morgan Hill/Coyote Lake and Bear Valley/Stone Canyon areas of |  | | Report (issue) | | ------------------Minnesota ------------------------------South Dakota ---------------------------Northern Rocky...------Puerto Rico -----------------------------South Carolina --------------------------Tennessee --...-------Oklahoma -------------------------------South Dakota ---------------------------lJtah -------...cooperators --------------------------State, county, and local cooperators -----------Other cooperators and contributors...gional offices ----------------------Area and District offices -------------Earth Resources Observation |  | | Report (issue) | | Minnesota ---------------------------------- 31 South Dakota ------------------------------ 31 Northern...-----North Dakota -----------------------------South Dakota -----------------------------Utah ------...----------------------------State, county, and local cooperators -------------Other cooperators and contributors...onal offices ------------------------Area and District offices ----------------Earth Resources Observation...------------------Regional offices ------------------------District offices -------------------------Offices in other |  | | Report (issue) | | 1967. 1968. Numerous Federal, State, county, and local agencies and other organizations and countries listed...___-._ Oregon._ ______________________________ South Dakota_____________.____________ Atlantic Coastal...---64 West Virginia________-____-_----------64 South Carolina_--__---__--------------64 Georgia-_---...-------73 North Dakota ____._-_._ ____--_-_ 74 South Dakota___________--------------75 Utah-..-.__-....cooperators________-____________________ State, county, and local cooperators_____________ Other cooperators and contributors |  | | Journal (article/letter/editorial) | | quadrangle. They are nearly completely separated from the rest of the area by the Grantham fault, which is probably...East of the Littleton formation is the Kinsman quartz monzonite. This rock resembles the Bethlehem gneiss...feldspathic gneiss (Bethlehem gneiss and Kinsman quartz monzonite). Recrystallization and reconstitution...introduced to form oligoclase-andesine. In the Kinsman quartz monzonite, recrystallization was so severe that...Undifferentiated Littleton formation 387 Hubbard Hill member 387 General statement 387 Schist 388 Gneiss |  | | Report (issue) | | this chapter. Numerous Federal, State, county, and local agencies and other organizations and countries listed... North Carolina ............................ . South Carolina ......................•...... Georgia ...resources-Continued Rocky Mountain region-continued South Dakota •..•...•......•....•.•........ Utah .•.•............................ . State, county, and local cooperators ................. . Other cooperators...Regional offices ........................... . District offices ......................•...... Offices |  | | Book | | I 5 iiJ DIORITE ANDOVER QUARTZ QU/NCY SHARON GRANITE SYEN/TE DIORiTE ^, ^^^...Each year, then, a different group of hard-working local volunteers organizes a field conference and publishes...Year. In May, 1974, he gathered a small group of local geologists to form a steering committee to initiate...COASTAL GEOLOGY: BEDROCK GEOLOGY NORTH, WEST, & SOUTH OF BOSTON: NORTH OF BOSTON: 10 Trip No. Page...Mahlburg Kay and William M. Chappie B-17 428 SOUTH OF BOSTON: Alleghenian Deformation, Sedimentation |
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