 | | Journal (article/letter/editorial) | | PLATINUM GROUP ELEMENT DEPOSIT IN THE STILLWATER COMPLEX, MONTANA (USA) Corey J. Wall†and James S. Scoates... BC V6T-1Z4, Canada Abstract The Stillwater Complex, Montana (USA), is one of the world’s largest layered...high-precision crystallization ages for the reef and the Stillwater Complex. All samples are coarse grained to pegmatitic...crystallization of the Lower Banded series of the Stillwater Complex. The recognition that zircon can be successfully...intrusions worldwide. Introduction The Archean Stillwater Complex is a large mafic-ultramafic layered intrusion |  | | Journal (article/letter/editorial) | | terrestrial orthopyroxenites and norites (Stillwater Complex, Montana). We emphasizedthe REE (La, Ce, Nd, Sm...orthopyroxenite sequence(Bronzitite zone of the Stillwater Complex). An important lessonto be learned from...(StillwaterComplagioclaseseparatesfrom the Moore County cumulate plex, Papikeet al. 1995). eucrite. They...studies of cumulus orthopyroxene grains from the Stillwater Complex (Papike et al. 1995) we noted that thin...018 0 008 0.011 0.023 0.150 0.273 0.513 Moore County 0 029 0.211 0.081 0.016 0.019 0.027 0.050 0.150 |  | | Report (issue) | | study area, Custer and Gallatin National Forests, Montana Edited by JANE M. HAMMARSTROM1, MICHAEL L. ZIENTEK2...Study Area, Custer and Gallatin National Forests, Montana U.S. Geological Survey Open-File Report 93-207...700 km2) of National Forest land in southwestern Montana adjacent to the northern part of Yellowstone National...elements. Mines in production in 1992 are the Stillwater mine (platinum, palladium, gold, rhodium, copper...exploration led to the discovery and development of the Stillwater mine and the discovery of gold-copper-silver |  | | Report (issue) | | pyrites deposits (including pyrite, marcasite, or pyrrhotite deposits, that commonly contain some copper and...Lake County - 2, 4 Coso Range deposits, Inyo County - 14 Coyote Mountain deposits, Imperial County - 13...Chance Range) mine, Inyo County - 9, 11, 15, 16, 17 Elgin mine, Colusa County - 6, 12 Full Moon deposit...deposit, Imperial County - 13 The Geysers, Sonoma County - 1, 18 Leviathan mine, Alpine County - 7, 17 Sulphur...Sulphur Bank mine, Lake County - 2, 4, 5, 6, 8, 12, 17; S 7 Supan deposits, Shasta County - 3; S 7 3. Goldman |  | | Book | | 369-390 18. Discovery of the J-M Reef, Stillwater Complex, Montana: the role of soil and silt platinum and...BUSHVELD COMPLEX UG2 Chromitite Merensky Reef STILLWATER COMPLEX GREAT DYKE MUNNI MUNNI INTRUSION SKAERGAARD...FINES AND THE DISCOVERY OF THE J-M REEF, STILLWATER COMPLEX, MONTANA M.L. Zientek, S.R. Corson, R.D. West...the Study Area 391 Igneous Stratigraphy of the Stillwater Complex 392 Discovery of the J-M Reef 394 Soil...Fork of the Stillwater River 398 West Fork Stillwater River to Stillwater River 404 Stillwater River to |  | | Report (issue) | | Stillwater Complex, Montana: Rock Succession, Metamorphism, and Structure of the Complex and Adjacent...GEOLOGICAL SURVEY PROFESSIONAL PAPER 999 Stillwater Complex, Montana: Rock Succession, Metamorphism and Structure...--------Petrology and rock succession of the Stillwater Complex and adjacent rocks------------------...metasedimentary rocks in the contact aureole of the Stillwater Complex -----------------------------------------Areal...---------------------------------------------------Stillwater Complex ------------------------------------ |  | | Journal (article/letter/editorial) | | Occurrence in Carroll County, Georgia" (November/December 1988). Banks County 184 ROCKS & MINERALS...Bentley provided many of the photographs. Baldwin County Milledgeville district—between the State Sanitarium...pit—east of S.R. 243 near the Baldwin-Wilkerson County line: kaolinite (Martin and Stafford, 1972). Cheatham...property—Route 3, Commerce, 4.8 km from the Jackson County line, 8 km east of Commerce on S.R. 59, and 0.8...[University of Calgary] at 09:55 07 August 2017 Barrow County Arnold mine—1.6 km northeast of Statham, near the |  | | Journal (article/letter/editorial) | | for the productionof sulfuricacid,alsocontain pyrrhotite, chalcopyrite,and sphaleritewith trace amountsof...lase Umveter gneiss. Formation i'i.•[]Losl Mountain Amph•bohte - amphibolite, hornblende-andesine...Creek Mafic Complex Pumpkinvine Creek Formation Lost Mountain Amphibolite ß Gaits Ferry Gneiss Tholeiitic...extendingfrom Dallas on the southwest(Fig. 2) to Cherokee County on the northeast.There the Univeter, Canton, and...GNEISS POWERS ANDY contact FERRY FORMATION MOUNTAIN FORMATION 15 [] GRAPHITIC SCHIST -// tu / |  | | Report (issue) | | PLANT OF THE S'I'ANDARD PYRITES COMPANY, CHEROKEE COUNTY. GEOLOGICAL SURVEY OF GEORGIA S. W. McCALLIE...replacements ........................................ . Pyrrhotite veins ............................................................................. . Carroll County belt ........................................................ · · · · · · · · · · · · Pauliling County belt .................................. · · · ·...........•.....................• 31-224 Carroll County .............................................. |  | | Report (issue) | | . . . . . . . . . . . . 35 23. Map showing Lost Mountain Amphibolite type locality ....................and dimension stone from quarries in the Stone Mountain, Panola, Palmetto, and Ben Hill Granites and Lithonia...188189190- Felton Rockmart South Yorkville Dallas Lost Mounta in Marietta Sandy Springs Chamblee Norcross...Mableton Northwest Atlanta Northeast Atlanta Stone Mountain Snellville Loganville Between 230231 2322332...first of two reports on the hydrology of Bartow County in which he indicated that much of the Lower Cambrian |  | | Report (issue) | | IN THE WEST-CENTRAL GEORGIA PIEDMONT The Carroll County gold belt and the southwestern portion of the Dahlonega...Miners and workings at the Yorkville Mine, Paulding County (Circa 1930). Photo courtesy of Georgia Department...IN THE WEST-CENTRAL GEORGIA PIEDMONT The Carroll County gold belt and the southwestern portion of the Dahlonega...Oak Grove Gneiss Unassigned Rocks 0 0 0 Andy Mountain Formation Paleozoic Plutonic Rocks 0 0 0 0.... 26 List of Plates 1. Geology of the Carroll County gold belt and southwestern portion of the Dahlonega |  | | Report (issue) | | COVER PHOTO : Gold nugget from Dukes Creek, White County, weight 5 oz., 12 dwt., approx. 2x. BACK COVER...crystal from Graves Mountain, approx. 1.5x. Lower left - Goethite from Pulaski County, approx. lx. Right.................................... ·. . . . . Pyrrhotite . . . . . . . . . . . . . . . . . . . . . . ............................................. 170 County Index ...........................................from Washington and Bleck ley counties to Irwin county. Some minerals described herein have never been |  | | Journal (issue) | | rocks found in Kansas; detailed 34 minerals, and a county index, general index. Copies may be the Survey...poor old Mastodon found here in Willits, Mendocino County, Calif., twenty-five years ago Being interested...the surface” picture of our un mapped Mendocino county, I contacted Mr Charlie Van Bebber, the old timer...the streams and roaming the hills of Mendocino county for fifty years, “I did find that Mastodon standing...of the book is not of the best, this drawback is lost in the fascination of the subject matter First exploration |  | | Journal (article/letter/editorial) | | Genesisof Gold Depositsof the Dahlonegaand Carroll County Gold Belts, Georgia JERRYM. GERMAN GeorgiaGeologicSurvey...UniveterFormation.Mostgolddepositsof the Dahlonega and Carroll County belts can be groupedinto six districts:the Villa...smallerscale(Yeates called the Dahlonegaand the Carroll County gold et al., 1896). belts.Thesebeltscanbe tracedacross...JERRYM. GERMAN Tennessee oxwl•e Grandfather Mountain nn. ! North Carolina SouthCarohna L_ •Atlanta...Auraria district, 5- Dahlonega district, 6- White County district. all areasof the statewhere goldwasproducedin |  | | Journal (article/letter/editorial) | | i c k f o r d , Norway, M a i n e . B Herkimer County "Diamonds," $ 1 . 0 0 . 6 Golden A p a t i t e...small specimens of M a i n e talc, tourmaline, pyrrhotite, rose quartz, clear and smoky quartz, feldspar...2 — $ 1 . 5 0 postpaid. Satisfaction guaranteed. Lost Cave Mineral Shop, H e l l e r t o w n , Pa. Mineral...M A I N E M I N E R A L S — From famous Oxford County. Fibrous vein calcite, tourmaline, spodumene, lepidolite...Lapidary Journal Lewis, W. Scott Lobel, Robert Lost Mountain Gems 645, 656 632, 642 644 656 631 Marriett |  | | Journal (issue) | | interest. With it of the nodules, in Mr from Bihl Mountain, 20 CEDAR RAPIDS MAN IMPROVED ON ANCIENT MILLSTONES...Grieger’s Kramer, Sam Lapidary Equipment Co. Lost Mountain Gems Luhr Jensen Minerals Unlimited Modoc Rock...along Little Kinshew Creek near Ramsey Bar, Butte County, Cali fornia, will be interested to learn that...southeast informs of me grams Morley Buhl Mountain, collection, and in London. Both masses of...basalt to date reported from Buhl Mountain, Hessen-Nassau, Germany. lost when Regarding and the name |  | | Report (issue) | | onega go.ld belt extending from Canton in Cherokee County Georgia, is a narrqw, ~et;~uence of r-ock units...lithologies generally Maxwell (1901) described the Crown Mountain Mine at marked the transitions between volcanic...resources of White County were described by Hurst and Otwell, and those in Habersham County were described...included a portion of the study area in Cherokee County. Hatcher's (1971, 1974, 1976) works on the geology...(1984) recently described the gold deposits of White County, and McConnell and Abrams (1984) d~scribed part |  | | Report (volume) | | , Fort Knox, Alaska; Dublin Gulch, Yukon; Red Mountain, B.C.) in the northwestern Cordillera offer exciting...alkalic porphyries, the Iron Mask batholith, Copper Mountain camp, Galore Creek area and Mt. Milligan are the...Kennecott, are outlined by Enns et al. The Copper Mountain camp has a production history dating back to 1884...since 1965. Other past producers include Boss Mountain and Kitsault. Molybdenite is generally the only...relations and alteration zoning, observed at the Red Mountain, B.C. gold-silver-telluride porphyry-related deposit |  | | Journal (issue) | | Volume Fourteen, Number Five ARIZONA- V Articles Lost mines of Arizona .................................R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University...than 170 Arizona localities (plus an additional 135 lost mines) from which have come approximately 400 different...YUMA COUNTY NAME CHANGED Is nothing sacred? The famous Red Cloud mine is no longer in Yuma County, Arizona...divide the county in two, the northern half (more or less) being renamed as the new county of La Paz. |  | | Report (issue) | | was discovered on the Reed plantation in Cabarrus county, N. C., in 1799· It was about 8 Yz inches long... A nugget found at the White Path mine, Gilmer county, which was said to have weighed about 4 Yz pounds...594,666 Michigan 12 OCCURRENCE AND HISTORY Montana-- - __ --- _- ·-- . _ - . __ -____ -- _______ -...divisions, viz:- The Pacific division, _the Rocky Mountain division and the Appalachian division. The Pacific...what has been termed the Comstock Lode in Storey county, a few miles northeast of Carson City. TJtis lode |  | | Report (issue) | | was discovered on the Reed plantation in Cabarrus county, N. C., in 1799· It was about 8 Yz inches long... A nugget found at the White Path mine, Gilmer county, which was said to have weighed about 4 Yz pounds...594,666 Michigan 12 OCCURRENCE AND HISTORY Montana-- - __ --- _- ·-- . _ - . __ -____ -- _______ -...divisions, viz:- The Pacific division, _the Rocky Mountain division and the Appalachian division. The Pacific...what has been termed the Comstock Lode in Storey county, a few miles northeast of Carson City. TJtis lode |  | | Book (volume) | | 329 ? t. •S' Cover Photo: San Francisco Area, USA, Petrochemical Refinery at Sunrise - Towers Sillouette...the structure is inher¬ of the proposed Yucca Mountain repository site in ited from the original rock...dries out, the tunnels formed by bur¬ in Yucca Mountain began in 1994, and evaluation of rowing organisms...understand delays necessitated by the need to gather Mountain, Nevada).” Discover 10 (March, 1989): and interpret...but never eliminated. Richard W. Aniseth Yucca Mountain, Nevada, high-level waste reposi¬ tory. Discusses |  | | Book | | dollars at the noted locality of Cowee Valley, Macon County, North Carolina. An enthusiastic family found and...visited the well known old Rutherford mine in Amelia County, Virginia, and found bright spessartine garnets...green gem spodumene, was discovered in Alexander County, North Carolina, in 1880 and named for one of its...Hidden. The rose-pink rhodo lite garnet of Macon County was discovered in the late 19th century and named...the Jackson club with its successful shows. Macon County, North Carolina, has a wide awake Chamber of Commerce |  | | Report (issue) | | the microscope in the early seventies, analyses lost much of their importance. Though they were still...other hand, owing to the same fact, the fine dust lost d1u·ing the operations of crushing, sifting, and...the rock is dependent on two The fact must not be lost sight of by petrographers factors-the accuracy of...presence of a considerable amount of pyrite or pyrrhotite makes the determinatior1 of ferrous oxide v~ry...lesser constitue:p.ts, barium along the Rocky Mountain region than in the but only those essential to |  | | Report (issue) | | ALTITUDES IN VERMONT, /GEOLOGY OF GRAND ISLE COUNTY, THE OLDEST CORAL REEF, P. E. TERRANES OF BETHEL...two-thirds, and as from these maps the altitude, of any mountain, hill, town, etc., which is within the limit of...some further account of the Geology of Grand Isle County. Following this is an inter esting study of an...This map covers most, though not all of Franklin County, of which St. Albans is chief, thus giving the...Enosburg Falls map includes an area wholly in Franklin County, going east through much of Berkshire, Enosburg |
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