 | | 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.. • • |  | | 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___________________ |  | | 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 |  | | 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 |  | | 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.... |  | Ledevin, , Arndt, , Chauvel, , Jaillard, , Simionovici, (2019) The Sedimentary Origin of Black and White Banded Cherts of the Buck Reef, Barberton, South Africa. Geosciences, 9 (10) 424 doi:10.3390/geosciences9100424 | Journal (article/letter/editorial) | | Sedimentary Origin of Black and White Banded Cherts of the Buck Reef, Barberton, South Africa Morgane Ledevin, Nicholas...October 2019 Abstract: The Buck Reef is a 250–400 m thick sequence of banded black...petrological and geochemical constraints on the chert-forming process and the origin of the banding. White...circulation of Si-rich fluid is recorded by abundant chert veins and pervasive silicification. However, the...temperature during cold intervals. Keywords: chert; Archean; Buck Reef; sediment; geochemistry; climate 1 |  | | 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 |  | | Journal (article/letter/editorial) | | About 40 miles northeast of Montgomery in Coosa County there is an outcrop that carries considerable tin...drusy quartz; the locality is the Aurora Quicksilver Mine in San Benito Co., Calif. A new occurrence for scheelite...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...Such beds are found in the vicinity of the Marin County discovery and are probably related to its origin |  | | Report (issue) | | SHALE (UPPER PART) AND MESAVERDE GROUP (LOWER PART), MOFFAT COUNTY, COLORADO By Louise W. Kiteley U...SHALE (UPPER PART) AND MESAVERDE GROUP (LOWER PART), MOFFAT COUNTY, COLORADO^' by Louise W. Kiteley Twelve...Mancos Shale and the lower part of the Mesaverde Group (lies Formation) of Late Cretaceous age have been...98 W. , Elk Springs 15 min. Quadrangle, Moffat County, Colorado. Section from Units 1 through 24 measured... A. Cobban, U.S. Geological Survey. Mesaverde Group: lies Formation: 43. 42. Trout Creek Sandstone |  | | Journal (article/letter/editorial) | | Stanford University, Stanford, California 94305-2115 USA. E-mail address: drlowe@stanford.edu Declarations...sedimentation; felsic volcanic rocks; Onverwacht Group; Archean glaciation 3 1. Introduction In the 3...stratigraphy of H6 and associated units of the Onverwacht Group, defining a new unit, the Noisy Complex or Noisy...Onverwacht Anticline (Fig. 2), the overlying Buck Reef Chert (Fig. 1). The Noisy Complex was interpreted...Tree, and Moodies Groups (Fig. 1). The Onverwacht Group includes 12+ km of mafic and ultramafic volcanic |  | | 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...also outcrops of anthracite beds; the location of mine portals and strip mines; the probable correlation |  | | Journal (article/letter/editorial) | | com/locate/precamres Sedimentary geology of the Palaeoarchaean Buck Ridge (South Africa) and Kittys Gap (Western Australia)...Wouter Nijman ∗ , Poppe L. de Boer Sedimentology Group, Department of Earth Sciences, Utrecht University...terrane Chert a b s t r a c t The two Palaeoarchaean volcano-sedimentary complexes of the Buck Ridge (Barberton...replacement by diagenetic structures. The Buck Ridge chert forms a regressive-transgressive succession...littoral marine facies. Deposition of the Kittys Gap Chert was also close to base level, almost exclusively |  | | Report (issue) | | Facies Analysis of the Lower Cycles of the Mesaverde Group (Upper Cretaceous) in Northwestern Colorado By................................... 6 Mesaverde Group in northwestern Colorado showing eastwardthinning...samples from the lies Formation of the Mesaverde Group and Mancos Shale, northwestern Colorado........... FACIES ANALYSIS OF THE LOWER CYCLES OF THE MESAVERDE GROUP (UPPER CRETACEOUS) IN NORTHWESTERN COLORADO By Louise...overlying 390 m of the lies Formation of the Mesaverde Group in northwestern Colorado were deposited at the west |  | | Journal (article/letter/editorial) | | TEXAS By RALPH L. ERICKSON ABSTRACT The Tertiary Buck Hill volcanic series, about 4000 feet thick, covers...hills. Boulders of Caballos novaculite and of black chert suggestive of the Maravillas formation indicate...structurally downwarped Marfa basin in which the Buck Hill volcanic series accumulated. The volcanic series...Boquillas formation Page Tertiary system 1361 Page Buck Hill volcanic series 1361 1354 Pruett formation...this region include Goldich and Elms (1949) in the Buck Hill quadrangle, Goldich and Seward Figure Page |  | | Journal (article/letter/editorial) | | 94305, USA b Division of Geological and Planetary Sciences, Caltech, Pasadena, CA 91125, USA Received...banded black-and-white cherts from the Onverwacht Group of the Barberton Greenstone Belt, South Africa....distinct silica phases, including black carbonaceous chert beds and bands (many including well-defined sedimentary...sedimentary grains), white relatively pure chert bands including primary silica granules, early cavity-filling...cements, and later quartz-filled veins. Including all chert types and textures analyzed, the d30Si dataset spans |  | Fisher, D.J., Erdmann, C.E., Reeside, J.B. (1960) Cretaceous and Tertiary formations of the Book Cliffs, Carbon, Emery, and Grand Counties, Utah, and Garfield and Mesa Counties, Colorado. Professional Paper 332. US Geological Survey doi:10.3133/pp332 | Report (issue) | | ___________________ Buck tongue of Mancos shale__________ Sego sandstone and included Anchor Mine tongue of the..._ Price River formation (restricted)___________ Buck tongue of Mancos shale ________________ Sego sa...sandstone_____----__-----__-_________ Mancos shale and Mesaverde group _______________ Post-Mesaverde formations ______________________... 13. Fossils found at various localities in the Buck tongue of Mancos shale___________._____ 14. Fossils...the Mancos shale, and the Mesaverde group. Above the Mesaverde group in the Book Cliffs are formations |  | | Report (issue) | | Cliffs Region (Utah and Colo.) 7. Geology-Utah-Grand County. I. Pitman, Janet K. II. Nichols, Douglas J. Ill...relations N7 Sedimentology and depositional history N9 Buck Tongue of the Mancos Shale N9 Sego Sandstone N9...compositions in the Upper Cretaceous Mesaverde Group N4 Palynomorph assemblage from the . upper part...Abstract The Upper Cretaceous sequence from the Buck Tongue of the Mancos Shale through the Tuscher Formation...potassium ferricyanide to differentiate iron-bearing from iron-free calcite and with sodium cobaltinitrite |  | | Report (volume) | | Emperor Volcanic Complex of east Gogebic Range, Michigan, by Virgil A. Trent ____________________________________________...in the eastern part of the Nevada Test Site, Nye County, Nev ___________ __ 51 3. Map showing known distribution...in the eastern part of the Nevada Test Site, Nye County, Nev ____ 52 4. Map showing known distribution...in the eastern part of the Nevada Test Site, Nye County, Nev _________ 53 5. Correlation chart of Carboniferous...symbols, and lowercase letters will indicate the group or formation names as appropriate. If a unit extends |  | | Journal (issue) | | 0196-948X The Cretaceous System in central Sierra County, New Mexico Spencer G. Lucas, W. John Nelson, Karl...sedimentary rocks. These are strata of the Yeso Group overlain by the Glorieta Sandstone capped by the...of the Arroyo de Alamillo Formation of the Yeso Group crop out as low benches and in gullies. The lower...Member, which is the uppermost unit of the Yeso Group, tabular beds of yellow and brown sandstone are...NMBG-NMGeology@nmt.edu The Cretaceous System in central Sierra County, New Mexico Spencer G. Lucas, New Mexico Museum |  | | Report (issue) | | siliciclastic detritus was derived from erosion of chert, siliceous mudrock, and sandstone of quartzose and...Diamond Mountains in the eastern part of Eureka County, Nevada (figs. 1, 2). Both the Diamond Peak Formation...NEVADA 23 Northern Pinon Range 24 Central Elko County 21 Southern Diamond Mountains 11 Indian Creek...summary of early Stratigraphic nomenclature in Eureka County and a geologic map of the western Diamond Mountains...duration of the project. Tom Bergstresser of Chevron USA, Houston, Texas, coordinated the laboratory analyses |  | | Journal (article/letter/editorial) | | (top left). Calcite, 5.5 cm high, Elmwood mine, Smith County. Terry Huizing specimen, Jeff Scovil photo...(above). Fluorite, 13.1 cm wide, Elmwood mine, Smith County. Francis Benjamin specimen, Jeff Scovil photo...(left). Fluorite, 2.5 cm on edge, Elmwood mine, Carthage, Smith County. Terry Huizing specimen and photo. Figure...Figure 4 (right). Cumberland mine, Smith County. Travis Paris photo (2004). Figure 5 (far right page)...Tennessee brown iron deposits, the Mascot–Jefferson City zinc district, the Bumpass Cove iron-zinc-manganese |  | | Journal (issue) | | ......................... 394 NEEBISH ISLAND, MICHIGAN. By Joseph A . Mandarino ........... :.......... THE GEOLOGY OF LOWER MILFORD TOWNSHIP, LEHIGH COUNTY, PENN. (Part 3). By Charles W. Brotvn ········...406 A VISIT TO THE IVIGTUT (Greenland) CRYOLITE MINE. By John Si11ka11kas ................. :......................................... 412 FREEDMAN ON BUCK CREEK, N . C. By Charles A . Belz ................had brought new life to Oputo, with a local lead mine having considerable importance. A vein of emery |  | | Journal (article/letter/editorial) | | and Harris, 2008). The 3.55–3.30 Ga Onverwacht Group is a thick pile of submarine lava flows that erupted...to chert and extensive hydraulic fracturing, giving rise to cross-cutting veins filled with chert and...Palaeoarchaean ocean floor was a major source for dissolved iron and nickel transferred to the ocean by reduced seawater...become concentrated in marine sediments, Fe in banded iron formations and Ni in shales. These lithologies and...outlined in Wilson (2003). A set of chert samples from the Buck Reef Chert BARB3 drill core (Hofmann et al |  | Hartke, Edwin J., Ault, Curtis H., Austin, George S., Becker, Leroy E., Bleuer, N.K., Herring, William C., Moore, Michael C. (1980) Geology for Environmental Planning in Marion County, Indiana. Special Report 19. Indiana Geological Survey doi:10.5967/48mk-kf88 | Report (issue) | | GEOLOGY FOR ENVIRONMENTAL PLANNING IN MARION COUNTY, INDIANA Special Report 19 I dry ' ~ State... Geology for Environmental Planning in Marion County, Indiana By EDWIN J. HARTKE, CURTIS H. AULT, GEORGE...of Marion County, Indiana . . . . . . . . . . . . . . . . . . . . . . . Map of Marion County showing surficial... Map of Marion County showing thickness in feet of glacial drift Map of Marion County showing bedrock... . . . . . . . . . . . . . . . . Map of Marion County showing topography of the bedrock surface Generalized |  | Wilmeth, D.T., Corsetti, F.A., Beukes, N.J., Awramik, S.M., Petryshyn, V., Spear, J.R., Celestian, A.J. (2019) Neoarchean (2.7 Ga) lacustrine stromatolite deposits in the Hartbeesfontein Basin, Ventersdorp Supergroup, South Africa: Implications for oxygen oases. Precambrian Research, 320. 291-302 doi:10.1016/j.precamres.2018.11.009 | Journal (article/letter/editorial) | | University of Southern California, Los Angeles, CA 90089, USA 3: DST-NRF CIMERA, Department of Geology, University...University of California, Santa Barbara, CA 93106, USA 5: Environmental Studies Program, University of Southern...Southern California, Los Angeles, CA 90089, USA 6: Department of Civil and Environmental Engineering...Golden, CO 80401, USA 7: Natural History Museum of Los Angeles, Los Angeles, CA 90007, USA *: Corresponding...within microbial mats. Stromatolitic laminae within chert preserve detrital material beyond 1 the angle |
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