DOCSLIB.ORG

Geologic Map of the Fish Creek Reservoir 7.5' Quadrangle, Blaine County, Idaho

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Geologic Map of the Fish Creek Reservoir 7.5' Quadrangle, Blaine County, Idaho Geologic Map of the Fish Creek Reservoir 7.5’ Quadrangle, Blaine County, Idaho Scientific Investigations Map 3191 U.S. Department of the Interior U.S. Geological Survey Idavada volcanics measured section Fish Creek Reservoir dam West Fork Fish Creek CRATER Fish Creek NORTH Fish Creek Reservoir Road Mcb FRONT COVER: View looking west from low hill on east side of Fish Creek (see red star on geologic map), showing Fish Creek dam and reservoir, nearly dry; location of measured section (white dashed line on ridge) of lower Paleozoic carbonate rocks (Skipp and Sandberg, 1975); rim of crater, source for basalt flow of Snake River Group, and the junction of Fish Creek and West Fork of Fish Creek. Flat-lying distant caprock on Wood River Formation is rhyolitic ignimbrite of Miocene Idavada Volcanics. Mcb = Copper Basin Group Geologic Map of the Fish Creek Reservoir 7.5´ Quadrangle, Blaine County, Idaho By Betty Skipp and Theodore R. Brandt Scientific Investigations Map 3191 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior KEN SALAZAR, Secretary U.S. Geological Survey Marcia K. McNutt, Director U.S. Geological Survey, Reston, Virginia: 2012 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod To order this and other USGS information products, visit http://store.usgs.gov Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted materials contained within this report. Suggested citation: Skipp, Betty, and Brandt, T.R., 2012, Geologic map of the Fish Creek Reservoir 7.5’ quadrangle, Blaine County, Idaho: U.S. Geological Survey Scientific Investigations Map 3191, 1 sheet, scale 1:24,000, pamphlet, 15 p. iii Contents Introduction.....................................................................................................................................................1 Regional Geology ...........................................................................................................................................1 Acknowledgments .........................................................................................................................................3 Description of Map Units ..............................................................................................................................4 Surficial Deposits ..................................................................................................................................4 Basalt Lava Flows .................................................................................................................................5 Craters of the Moon Volcanic Field ..........................................................................................5 Snake River Group .......................................................................................................................5 Idavada Volcanics (Miocene) .............................................................................................................5 Jasperoid.......................................................................................................................................6 Gossan ...........................................................................................................................................6 Challis Volcanic Group (Eocene) ........................................................................................................6 Intrusive Rocks ......................................................................................................................................7 Pre-Mesozoic Sedimentary Rocks ....................................................................................................8 Hanging Wall of Pioneer Thrust Fault .......................................................................................8 Footwall of Antler-age Thrust Fault ..........................................................................................9 Hanging Wall of Antler-age Thrust Fault..................................................................................9 Footwall of Pioneer Thrust Fault ...............................................................................................9 Copper Basin Group (Mississippian) ...............................................................................9 References Cited..........................................................................................................................................12 Figure 1. Diagrammatic map of south-central Idaho showing location of the Fish Creek Reservoir quadrangle in relation to geographic and geologic features .............................2 Geologic Map of the Fish Creek Reservoir 7.5’ Quadrangle, Blaine County, Idaho By Betty Skipp and Theodore R. Brandt Introduction Reservoir quadrangle, the thrust fault is buried beneath Eocene volcanics of the Challis Volcanic Group (Skipp and others, 2009; fig. 1). Where the thrust fault crops out in the southern The Fish Creek Reservoir quadrangle in south-central Fish Creek Reservoir area, younger carbonate rocks of the Idaho lies on the north-central margin of the Cenozoic Snake Pennsylvanian and Permian Wood River Formation directly River Plain at the southern end of the Pioneer Mountains overlie older flysch of the Mississippian Copper Basin Group. (fig. 1). Rocks exposed in the quadrangle range in age from Younger-over-older thrust relations are not typical for Paleozoic through Cenozoic. Mesozoic rocks are absent. thrust faults formed during a single compressional event, even Though Triassic and Jurassic sedimentary rocks may have when normal movement in the opposite direction is a factor. been deposited in this area, they would have been removed by In this area, however, the relations are interpreted to have erosion following uplift and thrusting of the Late Cretaceous resulted from complications resulting from two separate, but to early Tertiary Sevier orogeny (Skipp and others, 2009). areally overlapping, periods of compression of different ages, Mesozoic igneous rocks, satellites of the Atlanta lobe of in addition to later extensional movement. The first period of the Idaho batholith, may be present at depth (Rodgers and thrusting is interpreted to represent the Antler (latest Devonian others, 1995). to Early Mississippian) period of compression; the second, a Late Cretaceous to early Tertiary Sevier orogenic event. The period of Antler thrusting is interpreted to be represented by the Ordovician through Devonian rocks of differing western Regional Geology and eastern facies, exposed in two closely spaced windows eroded through overlying Tertiary volcanic rocks in the The region is underlain by Precambrian (Archean southern part of the Fish Creek Reservoir quadrangle. and Proterozoic) rocks shown to be present in the Pioneer Lower Paleozoic western facies rocks exposed in Mountains core complex to the northwest (PMCC, fig. 1; one structural window in the southwestern part of this Link and others, 2007; Link and others, 2010). Two facies of quadrangle west of Fish Creek have been assigned to the Paleozoic sedimentary rocks were deposited on this western Ordovician and Silurian Phi Kappa (SOp) and Trail Creek margin of Paleozoic North America (Laurentia). The two (St) Formations of Ordovician age and unnamed Devonian faulted and folded Paleozoic sequences are in contact along and Silurian calcareous sandstones as described by Dover the Pioneer thrust fault of probable Late Cretaceous age (1981, 1983), and Link and others (1995) in the central (Dover, 1983; Link and others, 1995; Kuntz and others, 2007; Pioneer Mountains. Graptolites of Ordovician age that Skipp and others, 2009). Both north and immediately south support these formation assignments were recovered locally of the Pioneer Mountain core complex, the westernmost from the Phi Kappa Formation (SOp) (Otto and Zieg, 2003; Paleozoic sequence consists of Devonian black argillite and Kuntz and others, 2007; fossil localities F-2, F-3, and F-4 quartzite deep-water facies of the Milligen Formation overlain on map). These lower Paleozoic rocks are interpreted to unconformably by Upper Paleozoic basinal carbonates of be deformed along an older-over-younger thrust segment the Pennsylvanian and Permian Wood River Formation. This overlain unconformably by fossiliferous rocks of the Middle western sequence is thrust over Mississippian western-derived Pennsylvanian Hailey Member (*wh), the lowest member flysch of the Copper Basin Group (Mcb) that unconformably of the basinal Pennsylvanian and Permian Wood River overlies lower Paleozoic carbonate rocks (Skipp and Formation. Cross sections A–A´ and B–B´ illustrate these Sandberg, 1975; Link and others, 1995; Skipp and others, structural interpretations. A different structural interpretation 2009). In the northern PMCC area, the older Devonian black of this southwestern window was published by Otto and Zieg, shales overlain by the Wood River Formation are in thrust (2003) who did not recognize the presence of the Wood River contact with the younger
Load more

Recommended publications
  • Tectonic Alteration of a Major Neogene River Drainage of the Basin and Range
    University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Professional Papers Graduate School 2016 TECTONIC ALTERATION OF A MAJOR NEOGENE RIVER DRAINAGE OF THE BASIN AND RANGE Stuart D. Parker Follow this and additional works at: https://scholarworks.umt.edu/etd Part of the Tectonics and Structure Commons Let us know how access to this document benefits ou.y Recommended Citation Parker, Stuart D., "TECTONIC ALTERATION OF A MAJOR NEOGENE RIVER DRAINAGE OF THE BASIN AND RANGE" (2016). Graduate Student Theses, Dissertations, & Professional Papers. 10637. https://scholarworks.umt.edu/etd/10637 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. TECTONIC ALTERATION OF A MAJOR NEOGENE RIVER DRAINAGE OF THE BASIN AND RANGE By STUART DOUGLAS PARKER Bachelor of Science, University of North Carolina-Asheville, Asheville, North Carolina, 2014 Thesis Presented in partial fulfillment of the requirements for the degree of Master of Science in Geology The University of Montana Missoula, MT May, 2016 Approved by: Scott Whittenburg, Dean of The Graduate School Graduate School James W. Sears, Committee Chair Department of Geosciences Rebecca Bendick Department of Geosciences Marc S. Hendrix Department of Geosciences Andrew Ware Department of Physics and Astronomy Parker, Stuart, M. S., May, 2016 Geology Tectonic alteration of a major Neogene river drainage of the Basin and Range Chairperson: James W.
    [Show full text]
  • Wilderness Study Areas
    I ___- .-ll..l .“..l..““l.--..- I. _.^.___” _^.__.._._ - ._____.-.-.. ------ FEDERAL LAND M.ANAGEMENT Status and Uses of Wilderness Study Areas I 150156 RESTRICTED--Not to be released outside the General Accounting Wice unless specifically approved by the Office of Congressional Relations. ssBO4’8 RELEASED ---- ---. - (;Ao/li:( ‘I:I)-!L~-l~~lL - United States General Accounting OfTice GAO Washington, D.C. 20548 Resources, Community, and Economic Development Division B-262989 September 23,1993 The Honorable Bruce F. Vento Chairman, Subcommittee on National Parks, Forests, and Public Lands Committee on Natural Resources House of Representatives Dear Mr. Chairman: Concerned about alleged degradation of areas being considered for possible inclusion in the National Wilderness Preservation System (wilderness study areas), you requested that we provide you with information on the types and effects of activities in these study areas. As agreed with your office, we gathered information on areas managed by two agencies: the Department of the Interior’s Bureau of Land Management (BLN) and the Department of Agriculture’s Forest Service. Specifically, this report provides information on (1) legislative guidance and the agency policies governing wilderness study area management, (2) the various activities and uses occurring in the agencies’ study areas, (3) the ways these activities and uses affect the areas, and (4) agency actions to monitor and restrict these uses and to repair damage resulting from them. Appendixes I and II provide data on the number, acreage, and locations of wilderness study areas managed by BLM and the Forest Service, as well as data on the types of uses occurring in the areas.
    [Show full text]
  • Little Wood River Management Area 5
    Chapter III Little Wood River Management Area 5 eek Box Canyon Cr r e iv R d o o 1.2 W ig r B 4.2 e v rk i o R F t d s a o E o W le t t i !9 Federal Gulch L !9 Sawmill Pioneer Mountains IRA k e re C n o o ld u 6.1 M 6.1 3.1 Copper !9 1.2 Creek 1 3 4 02468Miles Legend Management Prescription Categories 1.2 Recommended Wilderness 3.1 Passive Restoration and Maintenance of Aquatic, Terrestrial, and Hydrologic Resources 4.2 Roaded Recreation 6.1 Restoration and Maintenance Emphasis within Shrubland and Grassland Landscapes ¯ Non-Forest System Lands Wild & Scenic River Classification The Forest Service uses the most current and complete Eligible Wild & Scienic Rivers: Wild Classification data available. GIS data and product accuracy may vary. Inventoried Roadless Areas (IRAs) Using GIS products for purposes other than those intended may yield inaccurate or misleading results. Map produced by: B.Geesey, Sawtooth NF, 09/2009 Management Area 05. Little Wood River Location Map III - 177 Chapter III Little Wood River Management Area 5 Management Area 5 Little Wood River MANAGEMENT AREA DESCRIPTION Management Prescriptions - Management Area 5 has the following management prescriptions (see map on preceding page for distribution of prescriptions). Percent of Management Prescription Category (MPC) Mgt. Area 1.2 – Recommended Wilderness 57 3.1 – Passive Restoration and Maintenance of Aquatic, Terrestrial & Hydrologic Resources 7 4.2 – Roaded Recreation Emphasis Trace 6.1 – Restoration and Maintenance Emphasis within Shrubland & Grassland Landscapes 36 General Location and Description - Management Area 5 is comprised of lands administered by the Sawtooth National Forest within the Little Wood River drainage east of Ketchum and Sun Valley, Idaho (see map, preceding page).
    [Show full text]
  • Copper Basin Mining District Is the Former Site of Extensive Copper and Sulfur Mining Operations Dating Copper Basin Mining District Site Back for More Than 150 Years
    ABSTRACT: SITE BACKGROUND The Copper Basin Mining District is the former site of extensive copper and sulfur mining operations dating Copper Basin Mining District Site back for more than 150 years. In 1998, Glenn Springs Holdings, Inc. (GSHI) began installing a two-acre CERCLIS ID: TN0001890839 demonstration passive wetland system in conjunction An area rich in mining history, the Copper Basin with limestone dissolution and bacteria sulfate treatment. The anaerobic cell was completed in 1998, Mining District is located in Polk County in with two additional aerobic cells completed in 2003. southeastern Tennessee and in Fannin County in The demonstration wetland system captured base flow northern Georgia near the North Carolina border water from McPherson Branch (a first-order watershed) (see Figures 1 and 2). Mining of copper and sulfur with average influent flows of 291 gallons per minute (gpm). The McPherson Branch flow concentrations of began at the Copper Basin site soon after copper iron, copper, zinc, and aluminum were reduced by an was discovered in 1843 in Ducktown, Tennessee. order of magnitude and acidity was reduced by 100 The only deep shaft mines east of the Mississippi percent after flowing through the demonstrative wetland. River, mining and processing of copper occurred at The alkalinity was increased from 0 milligrams per liter (mg/L) to an average of approximately 160 mg/L. The the site until 1987, with sulfuric acid production pH of the treated water increased from 3.82 to 6.50. continuing until 2000. During the more than 150 Flow capacity is limited, with treatment of only the base years of mining and processing activities flow of the McPherson Branch through the wetland— conducted at Copper Basin, a total of more than higher flows bypass the passive treatment system.
    [Show full text]
  • Maintaining and Industrial Peace in the East Tennessee Copper Basin from the Great War Through the Second World War
    Georgia State University ScholarWorks @ Georgia State University History Dissertations Department of History 3-19-2010 Removing Reds from the Old Red Scar: Maintaining and Industrial Peace in the East Tennessee Copper Basin from the Great War through the Second World War William Ronald Simson Georgia State University Follow this and additional works at: https://scholarworks.gsu.edu/history_diss Part of the History Commons Recommended Citation Simson, William Ronald, "Removing Reds from the Old Red Scar: Maintaining and Industrial Peace in the East Tennessee Copper Basin from the Great War through the Second World War." Dissertation, Georgia State University, 2010. https://scholarworks.gsu.edu/history_diss/17 This Dissertation is brought to you for free and open access by the Department of History at ScholarWorks @ Georgia State University. It has been accepted for inclusion in History Dissertations by an authorized administrator of ScholarWorks @ Georgia State University. For more information, please contact [email protected]. REMOVING REDS FROM THE OLD RED SCAR: MAINTAINING AN INDUSTRIAL PEACE IN THE EAST TENNESSEE COPPER BASIN, FROM THE GREAT WAR THROUGH THE SECOND WORLD WAR by WILLIAM R. SIMSON ABSTRACT This study considers industrial society and development in the East Tennessee Copper Basin from the 1890s through World War II; its main focus will be on the primary industrial concern, Tennessee Copper Company (TCC 1899), owned by the Lewisohn Group, New York. The study differs from other Appalachian scholarship in its assessment of New South industries generally overlooked. Wars and increased reliance on organic chemicals tied the basin to defense needs and agricultural advance. Locals understood the basin held expanding economic opportunities superior to those in the surrounding mountains and saw themselves as participants in the nation’s industrial and economic progress, and a vital part of its defense.
    [Show full text]
  • Geologic Map of the Southern Portion of the Clayton Quadrangle, Custer
    IDAHO GEOLOGICAL SURVEY TECHNICAL REPORT 20-02 BOISE-MOSCOW IDAHOGEOLOGY.ORG KROHE AND OTHERS CORRELATION OF MAP UNITS Cash Creek Quartzite (middle Cambrian)—Quartzite, gray to 4TA09: Cambrian quartzite of Cash Creek (Єc) 5TA09: Ordovician Kinnikinic Quartzite (Ok) EOLOGIC AP OF THE OUTHERN ORTION OF THE LAYTON UADRANGLE, USTER OUNTY, DAHO Cc light-gray on weathered surface, light-gray to off-white on fresh G M S P C Q C C I Unconsolidated Sedimentary and Mass Movement Deposits surface. Unit is fine to coarse grained with pebbly layers and lenses 30 1785 n= 86 n= 87 (Hobbs and Hays, 1990); grains are subrounded and moderately to 1860 20 poorly sorted. All sand is quartz, there is no feldspar. Unit is medium Qls Qal Qc Qcq QUATERNARY to thick-bedded, has blocky weathering and is a cliff former. Unit 25 Volcanic Rocks has sharp contacts with the overlying Єs and underlying Єcb. The -------Unconformity------- CENOZOIC unit is ~396 m thick. Nicholas J. Krohe, Daniel T. Brennan, Paul K. Link, David M. Pearson, and L. Trent Armstrong 15 Lower carbonate of Squaw Creek (middle to early Cambrian)— 20 Tcv TERTIARY Ccb 1958 Idaho State University, Department of Geosciences Eocene Carbonaceous siltite, dark-gray to light-gray on weathered surface, dark purplish-gray to light-gray to turquoise on fresh surface. Unit is 2020 (modified from Plate 1 in Krohe, 2016, ISU M.S. Thesis) Sedimentary Rocks fine to very fine grained and well sorted. Unit contains mainly quartz 15 sand with some micaceous and calcareous layers. Unit is strikingly 10 Copper Basin Thrust Sheet Number laminated to thinly bedded, weathers fissile to flaggy, and has an Number Clayton-Bayhorse Section MISSISSIPPIAN 2102 2691 oily sheen.
    [Show full text]
  • Structural Reconstruction of Copper Basin, Battle Mountain District
    STRUCTURAL RECONSTRUCTION OF THE COPPER BASIN AREA, BATTLE MOUNTAIN DISTRICT, NEVADA by David A. Keeler A Prepublication Manuscript Submitted to the Faculty of the DEPARTMENT OF GEOSCIENCES In Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE In the Graduate College THE UNIVERSITY OF ARIZONA 2010 1 Structural Reconstruction of the Copper Basin Area, Battle Mountain District, Nevada David A. Keeler* Newmont Mining Corp. P.O. Box 1657, Battle Mountain, NV 89820-1657 and Eric Seedorff Institute for Mineral Resources, Department of Geosciences University of Arizona, Tucson, AZ 85721-0077 *Corresponding author: email, [email protected] 2 Abstract The Copper Basin area of the Battle Mountain district in north-central Nevada contains a porphyry Mo-Cu deposit (Buckingham), several porphyry-related Au ± Cu deposits in skarn and silica-pyrite bodies (Labrador, Empire, Northern Lights, Surprise, Carissa), and three supergene Cu deposits (Contention, Sweet Marie, Widow). This study uses the results of field mapping, U- Pb dating of zircons from igneous rocks, and structural analysis to assess the age, original geometry, depth of emplacement, and degree of tilting and dismemberment of the Late Cretaceous and Eocene hydrothermal systems the Copper Basin area and the source of the supergene copper. The Copper Basin area consists primarily of clastic rocks of the Cambrian(?) Harmony Formation overlain unconformably by Pennsylvanian-Permian clastic and carbonate rocks of the Antler overlap sequence. On the eastern side of Copper Basin, the Antler overlap sequence is overlain by the late Eocene tuff of Cove Mine, in which the compaction foliation dips 15 to 25° east.
    [Show full text]
  • Birth of the Mountains
    As the Nation’s principal conservation agency, the Department of the Interior has responsibility for most of our nationally owned public lands and natural and cultural resources. This includes fostering sound use of our land and water resources; protecting our fish, wildlife, and biological diversity; preserving the environmental and cultural values of our national parks and historical places; and providing for the enjoyment of life through outdoor recreation. The Department assesses our energy and mineral resources and works to ensure that their development is in the best interests of all our people by encouraging stewardship and citizen par- ticipation in their care. The Department also has a major responsibility for American Indian reservation communities and for people who live in island territories under U.S. administration. Birth of the Mountains The Geologic Story of the Southern Appalachian Mountains Printed on recycled paper U.S. Department of the Interior U.S. Geological Survey WVA Roanoke VA KY Knoxville NC TN Asheville Chattanooga SC AL GA Atlanta Location of the Southern Appalachians Front and back covers. Great Smoky Mountains from Newfound Gap Road, Great Smoky Mountains National Park. Frontispiece. Creek at the Noah “Bud” Ogle Place on Cherokee Orchard Road, Great Smoky Mountains National Park. Birth of the Mountains The Geologic Story of the Southern Appalachian Mountains By Sandra H.B. Clark The mountains are the soul of the region. To understand the mountains is to know ourselves. Introduction WV Jefferson NF KY The Southern Appalachian Mountains include the Great Smoky Mountains VA National Park, the Blue Ridge Parkway, several National Forests, Cherokee NF TN Blue Ridge and numerous State and Parkway privately owned parks Great Smoky Mountains NP NC and recreation areas Cherokee NF Pisgah NF (fig.
    [Show full text]
  • Polk County: an Appalachian Perspective
    University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Supervised Undergraduate Student Research Chancellor’s Honors Program Projects and Creative Work 5-1990 Polk County: An Appalachian Perspective Jéanne M. Brooks University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_chanhonoproj Recommended Citation Brooks, Jéanne M., "Polk County: An Appalachian Perspective" (1990). Chancellor’s Honors Program Projects. https://trace.tennessee.edu/utk_chanhonoproj/53 This is brought to you for free and open access by the Supervised Undergraduate Student Research and Creative Work at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Chancellor’s Honors Program Projects by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. A §JPEC1LJRUM OF CHANGE SENKOR lPROlTJEC'f COLLEGE SCHOLARS TENNESSEE SCHOLARS lEANNE M. BROOKS APRIL 17, 1990 Appalachia: An Overview.................................................................... 1 Introduction Definitions of Appalachia The Appalachian Regional Commission The Tennessee Valley Authority Appalachian Coal Communities The Case Study: Polk County, Tennessee ................................... 1 7 History to 1978 1 Polk County: An Appalachian Perspective...... Similarities between coal c . les and e aSln The role of TV A and the ARC in Polk County Regional Development Development in Polk County Conclusion Pictures ofPolk County........ ...... ........ ....... .......... ..... ........ ....................... 6 0 Burra Burra Mine Site Landscape Around Ducktown Cherokee National Forest Tennessee Chemical Company Hiwasee Baptist Church Rafters on the Ocoee River This project would not have been possible without the help of Dr.John Gaventa, Dr. Jim Cobb, and Dr. Anne Mayhew. Having the opportunity to work with professors of their calibre has been a true thrill for me.
    [Show full text]
  • Central Copper River Region, Alaska
    A, Economic Geology, 48 Series Professional Paper NO. 41 B, Descriptive Geology, 60 DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY CHARLES D. WALCOTT, DIRECTOR GEOLOGY OF THE CENTRAL COPPER RIVER REGION, ALASKA WALTER C. XENDENHALL GOVERNMENT PRINTIKG OFFICE 1905 CONTENTS. Page. Letter of transmittal ...................................................................... 9 Introduction .............................................................................. 11 Organization and itinerary ................................................................. 13 Geography ............................................................................... 16 Chugach Mountains ............................................................... 17 Wrangell hlou~itains............................................................. 17 Alaska Range .................................................................... 19 Interior valley .................................................................... 19 Copper River and its tributaries ................................................... 20 Relations of geography to settlement ...................................................... 22 Geology .................................................................................. Geologic summary .................................................................... Description of formations ............................................................. Dadina schists .................................................................... Occurrence and
    [Show full text]
  • Copper Basin Mining District Case Study
    Copper Basin Mining District Case Study Use of Cooperative Agreements Toward a Common Goal he Copper Basin Mining District has been heavily scarred by mining activities and is currently an area in transition. Once considered the Tlargest man-made biological desert in the nation, a 50-square mile tract of land was completely denuded following years of mining; farmers’ crops were destroyed by sulfur dioxide gas emissions from mining wastes; and creek waters were so acidic that no life flourished. In the 1970s, a biological survey found • Approximately 95 million tons of ore have only one living organism–an insect–in the waters downstream of the mining been processed in the mining district. area. Today, EPA, private companies, and the State of Tennessee are working • EPA, Tennessee, and private companies are together to reforest the land, clean the polluted waters, and stabilize and contain coordinating detailed investigations, com- munications, and cleanup efforts. mine wastes. On land that was once devoid of vegetation and clear waters, trees • A new wastewater treatment plant has have taken root and aquatic life is gradually returning. Tourists and locals alike removed approximately 6 million pounds of metals from the Davis Mill Creek in its fi rst enjoy white water raft trips in the nearby Ocoee river, scenic train excursions, two years of operation. and visits to a historic mining museum. It is only through coordinated efforts by EPA, the State of Tennessee, and private companies–with much input from the surrounding communities—that this turnaround is possible. With continued coordination and the ongoing work by all parties, the future for this mining area looks promising.
    [Show full text]
  • High Resolution Adobe PDF
    114°20'0"W 114°0'0"W Saturday Mountain " THOMPSON CREEK CLAYTON BALD MOUNTAIN LONE PINE PEAK ANTELOPE FLAT GROUSE CREEK MOUNTAIN DOUBLESPRING d R n yo Stat an ¤£93 75 e H 5 C RQ wy 7 r a Sp d R 6 1 Dickey Peak 1 d Potaman Peak " a o Sullivan Lake " R U p o S l e H v Anderson Peak w e y D 9 t " 3 s e r LIVINGSTON CREEK o POTAMAN PEAK ZIEGLER BASIN THE PAINT POT HORSE BASIN DICKEY PEAK F BORAH PEAK l t a N d Jimmy Smith Lake R R s o d s H ad C a r R e eek R d P r g d k in e r C p e s r r e le Borah Peak e C b k u " e o d R D R d g gs a prin S S ch d r d Bi R R t k r a l o e H rd F F La n t k e A s o n R s a W r d E d e e a d lk r s er n Rd A o n Lart e R r Sheep Mountain C d L o n ates Rd " Jerry Peak BOULDER CHAIN LAKES BOWERY CREEK BOWERY PEAK HERD LAKE " JERRY PEAK CHILLY BUTTES ELKHORN CREEK Bowery Peak WHIT"EM eCrrLiaOmU PDeSak WILDERNESS Swensen Butte " Castle Peak " O " ld t Rd C in h o i P lly tt R le d JIM MCCLURE-JERRY PEAK WILDERNESS rt a B N " n 0 ' L t 0 t i ° v 4 Herd Peak a 4 " R e id L atl Forest D ge N eve lop R Zolli o ng a Lehman Butte e r d Rd 0 " 6 3 R Meridian Peak d " GALENA PEAK RYAN PEAK MERIDIAN PEAK HERD PEAK HARRY CANYON PORPPHorYphRyYry PeEaAk K LEHMAN BUTTE " Glassford Peak " Ryan Peak " Kent Peak st Develo Galena HPeEaMk INGWAY-BOULDERS WILDERNESS " N tl Fore p Ro a ad 135 " Rd d R ek d Easley Peak re R Cabin Mountain C k l i e " " Silver Peak a r e T r E " " C a s e t Boulder Peak n F S A L M O N - C H A L L I S N F o " a r K k R d Phi Kappa Mountain " EASLEY HOT SPRINGS AMBER LAKES ROCK ROLL CANYON PHI KAPPA
    [Show full text]