 | | Report (issue) | | and Ore Deposits of the Iron River-Crystal Falls District, Iron County Michigan GEOLOGICAL SURVEY PROFESSIONAL...of the Michigan Department of Conservation PAPER 570 Geology and Ore Deposits of the Iron River-Crystal...River-Crystal Falls District, Iron County Michigan By H. L. JAMES, C. E. BUTTON, F. J. PETTIJOHN, and K. L...cooperation with the Geological Survey Division of the Michigan Department of Conservation UNITED STATES GOVERNMENT...formations. _______________________________ Baraga Group._____________________________ Hemlock Formation___________________ |  | | Report (issue) | | AND SOUTHEASTERN PARTS OF THE IRON RIVER DISTRICT IRON COUNTY, MICHIGAN By Harold L. James and Kenneth...cooperation of the Geological Survey Division, Michigan Department of Conservation WASHINGTON, D. C....AND SOUTHEASTERN PARTS OF THE IRON RIVER DISTRICT. ffiON ·COUNTY, MICHIGAN By Harold L. James and Kenneth...• • • • • • Footwall strata..................... Iron-f'orma tion. • • • • • • • • • • • • • • • • • •...w••••••• Section 24, T. 43 N., R. 35 w....... Spies mine area ( EisEt) •••••• ·• • • .Swt· sec. 24.. • • |  | | Journal (article/letter/editorial) | | Photographs JanuaryFebruary: Rhodochrosite, N’Chwaning mine, Hotazel, South Africa. Martin Zinn specimens, Erica...photo. May/June: Tourmaline on quartz, Cryo-Genie mine, San Diego County, California. Natural History Museum...Museum of Los Angeles County specimen, Harold and EricaVan Pelt photo. July/August: Amethyst and calcite...Ground Hog mine, Gilman, Eagle County, Colorado. Natural History Museum of Los Angeles County specimen...Erica Van Pelt photo. November/December: Elbaite on quartz, Barra de Salinas, Minas Gerais, Brazil. Hyman |  | | Journal (article/letter/editorial) | | photo March/April: Fluorite, Dow Scar vein, Hilton mine, Scordale, Cumbria, England; Jesse Fisher specimen...May/June: Uvite, Powers farm, Pierrepont, St. Lawrence County, New York; Steven C. Chamberlain specimen, Michael...July/August: Microcline, quartz, and albite, Kestral Pocket, Smoky Hawk mine, Teller County, Colorado; Martin...September/October: Gold and quartz, Colorado Quartz mine, Mariposa County, California; Scott Rudolph specimen... 423 Actinolite, New York, 221, 454 Adularia, Michigan, 39 Agate, 160–65 Albert Laws Kidwell (1919–2008) |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Journal (article/letter/editorial) | | Tewksbury, Great Britain; and Dr. George W. Robinson, Michigan Technological University. INVESTIGATION OF OXIDE...Ambatofotsikely was indeed a member of the columbite group. This sample was a manganese-rich ferrocolumbite...major constituents consist of fresh muscovite and quartz. Rare gahnite occurs as small aggregates to approximately...ranges from 1.5 to 2.9 wt. %. Columbite-tantalite group minerals are sparse and form prismatic crystals...the area, which postdates the deposition of the quartz-rich sediments that formed the quartzite country |  | | Report (volume) | | Clay County. Macon County. Jackson County. Transylvania County. Swain County. Haywood County. Buncombe...Buncombe County . Madison County. Yancey County. Mitchell County . Watauga County . Wilkes County. Ashe County...County . Alleghany County . Physiography and ecology of the peridotites. 28 28 29 32 34 35 36 38 42 46...mag¬ nesian rocks. Shooting Creek region, Clay County, North Carolina. Elf dunite. Elf amphibole-peridotite...—Continued. paoe Buck Creek area. Buck Creek dunite. Buck Creek amphibole-peridotite. Buck Creek troctolite |  | | Report (issue) | | (CaBSiO4OH) vesicle filling from a basaltic Houghton County lava flow. Small specks of native copper occur...the surface and between the nodular masses. The Michigan Bicentennial symbol (back cover) incorporates...Survey Division BULLETIN 6 THE MINERALOGY OF MICHIGAN by E. Wm. Heinrich Professor of Mineralogy and...University of Michigan Ann Arhor, Michigan Lansing, Michigan 1976 STATE OF MICHIGAN WILLIAM G. Mrr...State of Michigan CL '48 s.321.6. Printed by Speaker-Hines and Thomas, Inc., Lansing, Michigan. Available |  | | Journal (article/letter/editorial) | | pegmatite was mined at Barringer Hill in Llano County in the early 1900s but was flooded by Lake Buchanan...from 1900 to the middle 1940s; but the Mariposa mine, which produced most of the rare minerals, ceased...& Minerals on "The Weeks Pegmatite Mine, Wakefield, Carroll County, New Hampshire" (March/April 1991)...66, May/June 1991 197 LOCALITIES BY COUNTY Bastrop County KEY mm T * ? — — — — best occurrence..."specimen quality" questionable occurrence Angelina County Lufkin, 1 mile N of Lufkin in railroad cuts, in |  | Saunders, James A., Mathur, Ryan, Kamenov, George D., Shimizu, Toru, Brueseke, Matthew E. (2016) New isotopic evidence bearing on bonanza (Au-Ag) epithermal ore-forming processes. Mineralium Deposita, 51 (1) 1-11 doi:10.1007/s00126-015-0623-y | Journal (article/letter/editorial) | | 36849, USA 2 Department of Geology, Juniata College, 1700 Moore Street, Huntingdon, PA 16652, USA 3 ...112120, Gainesville, FL 32611, USA 4 Magma-hydrothermal deposits Research Group, Geological Survey of Japan...Geology, Kansas State University, Manhattan, KS 66506, USA consistent with ore textures that indicate physical...map showing deposits or districts in the western USA and Japan where we recognize colloid aggregation...Cu isotope data from epithermal ores from western USA and Japan, along with well-constrained new Pb and |  | | Journal (issue) | | Newsletter $3.00 The Rock Dam Gold Prospect A New Quartz Locality, Dickinson Co., Mich~g_an Shawn M. Carlson...Elder, Audrey E. Smith P.O. Box 234 Crystal Falls, Michigan 49920 shawncarlson@hotmail.com markelder@juno...gold prospect is located in central Dickinson County, Michigan, approximately ten kilometers north of the...the dominant exposed bedrock in this part of the county. Excavated near the tum of the 20th century, the...themselves are thoroughly unglamorous, yielding neither quartz crystals nor any noteworthy accessory minerals |  | | Report (volume) | | (E) Tungsten deposits of Vance County, N. C., and Mecklenburg County, Va., by G. H. Espenshade (published...deposits near Seiad and McGuffy Creeks, Siskiyou County, Calif., by F. G. Wells, C. T. Smith, G. H. Rynearson...Chromite deposits of Boulder River area, Sweetgrass County, Mont., by A. L. Howland, E. M. Garrels, and W...report on corundum deposits in the Buck Creek peridotite, Clay County, N. C., by J. B. Hadley (published...the tungsten deposits of Vance County, N. c., and Mecklenburg County, Va •••.•••••...••••. Geologic map |  | | Report (issue) | | stratigraphic relations............49 Glen Canyon Group................................51 Definition and....................................58 San Rafael group...................................... 58 Definition...Mountains................... 126 South Mountain group...................................... 126 South...stock of South Mountain........ 128 Middle Mountain group..................................... 128 Mount Tukuhnikivatz...prospect.............................146 Big Buck (Cutler) mine..........................147 History.... |  | | Report (volume) | | REPORT ON CORUNDUM DEPOSITS IN THE BUCK CREEl( PERIDOTITE CLAY COUNTY, NORTH CAROLINA BY JARVIS B. HADLEY...Shaft mine. . . . . • . . . . . . • . . . . . . . • . . . • . . . . . . . . . • . . . • Herbert mine......Geologic map and sections of the Buck Creek peridotite body, Clay County, N. C. . . . • . . . . . . . ....sections of the Corundum Knob area, Buck Creek corund~m district, Clay County, N.c ........ Geology and topography...topography of the eastern part of the Buck Creek area, Clay County, N. C •••....••........•.••...... Geology |  | | Journal (issue) | | oil here." What if Minnesota and Michigan had said "Don' t dig for iron here." What if Pennsy lvania, Kentucky...collection and selected a brilliant cluster of quartz crystals which had just recently been collected...Pennsylvania State flower, to be joined with the quartz crystal cluster to form the outstanding creation...therefore, surplus. These are still excellent for group or classroom instruction in map reading and profile...17125. SABULA-PENFIELD QUADRANGLES, CLEARFIELD COUNTY An area with major coal and gas resources is described |  | | Journal (issue) | | fossil plants of the John Day Formation, Wheeler County, Oregon by Steven R. Manchester, Florida Museum...Formation on the southern slope of Iron Mountain east of Clarno, Wheeler County, Oregon. The Whitecap Knoll...northwesterly aerial view of the south slope of Iron Mountain, showing (1) position of the lacustrine...the lacustrine shales of the Slanting Leaf Beds (Iron Mountain assemblage) of the Bridge Creek flora of...Day Formation in the Gray Butte area of Jefferson County, but the precise ages are difficult to determine |  | | Journal (article/letter/editorial) | | About 40 miles northeast of Montgomery in Coosa County there is an outcrop that carries considerable tin...magnetite, microcline, muscovite, olivine, pyrite, quartz, sillimanite, topaz, tourmaline, zircon, zoisite...encrusted by colorless drusy quartz; the locality is the Aurora Quicksilver Mine in San Benito Co., Calif...might find interesting. It is scheelite from Marin County, California. It is of primary interest as it is...Andreas fault, extending from Marin County to San Luis Obispo County. Included in the Sur Series are limestone |  | | Journal (article/letter/editorial) | | Main-stage quartz and dolomite veins, and late- to post-ore quartz from the Buck Quartz Fault in the...Cl, 36Ar, OH−, K and age. The main-stage quartz and Buck Quartz Fault samples host fluid inclusions with...and some fluid inclusions in samples from the Buck Quartz Fault have 36 Ar concentrations of greater than...distinguish it from all other sample groups in the mine area. Silica–dolomite alteration (and Cu mineralization)...deeply derived metamorphic fluid, best preserved in quartz fluid inclusions, and a surface-derived bittern |  | | Report (volume) | | ........................................ 54 In quartz-schist...__.._..___.__..__..____.._..-..________...and syenite-pegmatite _....-..-.-.-.---.--... In quartz-porphyry ........................................-...----...------.-.---.--..-.-..._.. Origin in quartz-schist....--...............----..--.-.-.......... ....... II. Outcrop of peridotite at Buck Creek, Clay County, N. C........ III. A, Corundum in chlorite...Carolina; B, Corundum in gneiss, Muskrat Fork, Clay County, N. C... J... IV. A, Bed of ruby-bearing gravel |  | | Report (issue) | | RESOURCES PUBLICATION 89 MINERALS OF ALBEMARLE COUNTY, VIRGINIA Richard S. Mitchell and William F. Giannini...RESOURCES PUBLICATION 89 MINERALS OF ALBEMARLE COUNTY, VIRGINIA Richard S. Mitchell and William F. Giannini...RESOURCES PUBLICATION 89 MINERALS OF ALBEMARLE COUNTY, VIRGINIA Richard S. Mitchell and William F. Giannini...through temolite-acti 15 15 l5 l6 l6 Teolite group throug References cited ILLUSTRATIONS Figure 1...talc l0 PUBLICATION 89 MINERALS OI' ALBEMARLE COUNTY. VIRGINIA Richard S. Mitchell* and William F. |  | | Journal (issue) | | early Mesozoic basins.~/,.~ .... , .......... 10 County topographic map series:n9w complete .............critical and strategic such minerals as the platinum group of metals, chromium, manganese, vanadium, and rutile...photographing , sampling, and describing ephemeral strip-mine highwalls in the bituminous coal fields (Project...strip mine near Eckley Miners' Village in the Eastern Middle Anthracite field, Luzerne County. This paper...located in an abandoned and partially backfilled strip mine on the southwest side of SR 2051 , 1.5 miles southeast |  | | Report (volume) | | Southern Half of the Tremont Quadrangle Schuylkill County, Pennsylvania GEOLOGICAL SURVEY BULLETIN 1112-F...Southern Half of the Tremont Quadrangle Schuylkill County, Pennsylvania By GORDON H. WOOD, JR., J. PETER...SOUTHERN HALF OF THE TREMONT QUADRANGLE, SCHUYLKILL COUNTY, PENNSYLVANIA By GORDON H. WOOD, JR., J. PETER...about 27 square miles in west-central Schuylkill County, Pa. These Paleozoic rocks are overlain at many...age. The Pocono consists largely of gray to brown quartz conglomerate, conglomeratic quartzose sandstone |  | | Report (volume) | | has been found ............................ 29 Buck Creek........................................................................................... Quartz............................................. ....the sea. To the north and west of this mountain group stretches the so-called York Plateau, a comparatively...had located promising deposits of stream tin on Buck Creek, a tributary of Mint River, about 20 miles...the first real attempts to mine the tin-bearing gravels were made on Buck Creek. The nature of this occurrence |  | | Report (volume) | | International Union of Geological Sciences Working Group on the Precambrian for the United States and Mexico...Nomenclature of Rock Units. An outgrowth of this group, the Commission on Stratigraphic Nomenclature, now...Member of the Lehigh Acres Formation of the Glades Group Early Cretaceous (Comanchean) Florida South Florida...250-12,460 ft, sec. 14, T. 45 S., R. 27 E., Lee County, Fla. Named for the nearby Able Canal. The Able...Lehigh Acres Formation (new name) of the Glades Group in the subsurface of the South Florida basin, where |  | | Report (issue) | | Pottsville Formation Allegheny Group Conemaugh Group Monongahela Group Geologic Structure: Coalbed Methane...Pocahontas basin, initially as an effort to improve mine safety conditions in deeply buried coal beds. At...(coal mine methane) commonly contains relatively large amounts of gaseous impurities from mine atmospheres...line of the base of the Pennsylvanian Conemaugh Group, occupies an area that is about 300 miles long parallel...Puglio, 1979). In 1976, three mines in Cambria County produced an average of 2.6, 2.7, and 3.1 thousand |
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