 | | Report (issue) | | Mountains on the south from the Mojave Desert on the north. Its summit is a resistant block of marble thrust...basins and barren ranges of the Mojave Desert on the north. But- tressing the eastern end of this escarpment...weathered gneiss. Undercutting by erosion has made the north slope of the mountain extremely precipitous; in...landslide debris. INTRODUCTION Blackhawk Saidmarreh north True —— 5 miles y = EiaWwW Figure 1. Areal...and the alluvial slope for several miles to the north of them in southeastern Lucerne Valley. Elevations |  | | Report (issue) | | noftonclature* Frui>ar«d in oooperation >dth the liorth Carolina Dep&rtaent of Conservation and Development* C05TSHTS...Metamorphic rocks ................ Mica rocks of the Carolina-type ....... Mioa gneiss .............. Mica schist...schist .............. Petrograpljy of the Carolina-type rocks . Structure and texture ....... Mineral.............. Cranberry gneiss ................ Carolina-type rocks .....*.......* Roan-type rocks ......the Plumtree area, Spruce Pine district, Forth Carolina.............................. In por&et 2» Photomicrographs |  | | Report (issue) | | producer; and until recently the Escalante mine, located a few km north of the quadrangle, was an important...boundaries. Best exhibited capping steep-faced bluffs on north side of Shoal Creek immediately west of Enterprise...exposed in isolated outcrops at low elevations north of Gum Hill and between Spring Creek and Cottonwood...(Pliocene(?) and Miocene) Light-tan, gray, and pink, biotite-bearing rhyolite to dacite lava exposed in limited...4-5 mm in diameter. Fine-grained phenocrysts of biotite are present in subordinate amounts, along with |  | | Report (issue) | | Related to Bullfrog Hills Caldera, Nye County, Nevada and Inyo County, California By HENRY R. CORNWALL and...Fluorspar__ _ ___________________________________ Daisy mine.___________--__----_----__-_-_Geologic setting....Hills caldera near Beatty. 6. Mine workings of the Daisy fluorspar mine. 7. Geologic map of levels 3,...8, Daisy fluorspar mine. 8. Geologic map of levels 9 to 13, Daisy fluorspar mine. 9. Longitudinal and...and cross sections of the Daisy fluorspar mine. FIGTTKE 1. View of Bonanza King and Nopah Formations in |  | | Report (issue) | | Geology and Ore Deposits of the Jerome Area Yavapai County Arizona By C. A. ANDERSON and S. C. CREASEY ";...308 With sections on the United Verde Extension mine by G. lf7. H. Norman and on the Cherry Creek mining...____________ _ Deception rhyolite _________________ _ Grapevine Gulch formation_.:.. _______ _ Alder group __...___________ :. . ________ ~ _____ _ .Minerals relat~d to mine fires ____ ..: __________ _ General characters __...district ___________________________ _ United Verde mine _________________________ _ Production ________ |  | | Report (issue) | | alkali feldspar; P = plagioclase feldspar; B = biotite; H = hornblende; Py = pyroxene; M = undivided mafic...crystals are present in most cases. Plagioclase and biotite are found in Kane Wash Tuff units only as xenocrysts...west-facing scarp along Kane Springs Wash near Grapevine Spring (E.F. Cook, unpub. data) and thins northeastward...Kane Springs Wash. Member V^ correlates with the Grapevine Spring unit of Scott and others (1988) Tirachyte...Boulder Canyon (Novak, 1984), about 9 km to the north. The easternmost exposure of trachyte is somewhat |  | | Report (issue) | | Winegrapes in Polk, Henderson and Buncombe Counties, NC Carolina Geological Society – Guidebook for the 83rd Annual...Hendersonville, North Carolina Field Trip Leaders: Joseph Forrest, Rick Wooten, Bart Cattanach Carolina Geological...site at 3400 feet on the Blue Ridge escarpment. Carolina Geological Society 2022 Board of Directors President...Engineering Secretary Cheryl Waters-Tormey - Western Carolina University Treasurer Jeff Chaumba - UNC Pembroke...Soil Geomorphology in North Carolina Brad Johnson 105 Western North Carolina Soils, Geology and Wine |  | | Report (volume) | | -trending faults______________________________ North-northeastward-trending faults_________________________...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |  | | Report (issue) | | production data for the lifetime of the United Verde mine, Arizona D6 Contents Ill 03. Plot of gold grade...copper grade for different time periods, United Verde mine D9 04. Plot of Ag:Au ratio versus tonnage for different...Cu:Zn ratio for ore, 1944-1953, Dll United Verde mine 06. Map showing generalized geology of the Jerome...Dl3 08. Map showing geology of the Unjted Verde mine area D14 09. Element-element plots for the 2400...013. Cross section through the North ore body of the Alaska-Juneau mine D31 014. Diagram showing paragenesis |  | | Journal (article/letter/editorial) | | drawn to similar depositsin Africa and Australia. mine (19, Fig. 1) occursin a belt of layered calcsil...breccias; classII deposits, uranium-bearing Day mine (7, Fig. 1) occur in a brecciaore hosted basemetal...1963; idan,1964).The hostrockisa graphiticgarnet-biotite Simsand Sheridan,1964).Recentmodelsby Young gneisswhichmarksthe...occurrences shownin Figure 1, only the Schwartzwalder mine is currentlyin production. Phanerozoic sections...pre-Laramide episodesof uranium concen- Schwartzwalder mine proposeda Proterozicorigin for the ColoradoFront |  | | Journal (article/letter/editorial) | | bars or less. Introduction in the United Verde mine. The United Verde Ex- TrtE massivesulfidedepositsat...processes.underground workings of the United Verde mine For manyyearsmostgeologists believedthat these depositsformed...southwestern wall of the openpit of the United Verde mine have since1953 been mined by the Big Hole Mining...volcaniclasticrocks of DodgeCorporationpurchased the mine in 1935 and Precambrianage, and in recent years...ROCKS hoenix Pz GABBRO BLACK SCHIST MASSIVE GRAPEVINE SULFIDE GULCH DECEPTION du dc PALEOZOIC |  | | Report (issue) | | King George Ridge metavolcanic pendant 34 Grapevine Grade pendant 35 Morton Flat pendant 35 Woody...Geologic map and diagrammatic cross-section of north end of Fairview pendant.. 5. Area of enigmatic...Gulch pendant. These two pendants together form a north-trending linear belt that is sharply in contrast...10 km north of Indian Wells Canyon. The pendant is named for a small tungsten mine at the north end of...present in most ..rocks. Variable amounts of biotite, amphibole, pyroxene, and epidote are also present |  | | Report (volume) | | _________ Economic geology _____ _ __ _ _ Valley north of Slate Ridge.__________.____________ Goldfleld...Economic geology________________________-__ 88 Ranges north of Pahute Mesa._______________,___ 89 Cactus Ra...Hornblende-biotite Jatite___________ 91 91 Earlier rhyolite___________________ Biotite andesite__________________..._______ Rhyolite_____________________________ Biotite andesite____:________ '.____ Basalt -___________________________...7 Descriptive geology Continued. Page. Ranges north of Paliutc Mesa Continued. Kawich Range ______________ |  | | Report (issue) | | MAP OF THE GREGERSON BASIN QUADRANGLE, LINCOLN COUNTY, NEVADA By Robert B. Scott1, W C Swadley1, William...of a formerly more extensive basin-fill deposit north of Gregerson Basin where it appears to conformably...float 3.3 km west of the east boundary and 5.8 km north of the south boundary of the quadrangle Te Tuff...percent quartz, 50 percent sanidine, and 10 percent biotite with a trace of hornblende(?). Sanidine is sparcely...fluvial tuff. Phenocrysts of quartz, sanidine, and biotite form less than 5 percent of the rock. Unit contains |  | | Journal (article/letter/editorial) | | reveal the presence of the latter as far west as Grapevine Canyon. The Nd, Sr, Pb, and O isotopic whole-rock...California Institute of Technology, Pasadena, CA 91125, USA 1Present address: Southwest ResearchInstitute 6220...6220 Culebra Rd., San Antonio, TX 78238-5166, USA Editorial responsibility: J. Patchett Introduction...on the southeast by the Pastoria thrust and the north branch of the Garlock fault. The Tehachapi crystalline...migmatite of Grapevine Peak, GC paragneiss of Grapevine Canyon; G garnet-biotite tonalite of Grapevine, of the |  | | Book | | MINES MINERS MINERALS AND OF WESTERN NORTH CAROLINA Western North Carolina’s Hidden Mineralogical Treasures...E L L 2005 PARKWAY PUBLISHERS, INC. Boone, North Carolina Copyright ©1999 Lowell Presnell All Rights...Mines, miners, and minerals of western North Carolina : western North Carolina’s hidden mineralogical treasures...(hard cover) 1. Mines and mineral resources—North Carolina—History. I. Title. TN24.N8P74 2005 338.4‚7622‚09756—dc22...Domestic Mica Buying Policy 111 20. Western North Carolina & the War Years .119 21. The Mineral Kingdom |  | | Report (volume) | | °30'W. in the southeast comer, about 165 km in a north-south direction and about 135 km in an east-west...all in Nevada. The northwestern area covers the North Pahroc Range, and east of that, Dry Lake Valley...relationships of Tertiary volcanic rocks in central Lincoln County, southeastern Nevada By Robert B. Scott, C. Sherman...rocks of the southern Delamar Mountains, Lincoln County, Nevada By William R. Page H. Paleomagnetic data...and RangeColorado Plateau transition zone, Iron County, Utah By VanS. Williams and Florian Maldonado |  | | Report (issue) | | GEOLOGIC MAP OF THE DELAMAR 3 NE QUADRANGLE, LINCOLN COUNTY, NEVADA By Robert B. Scott1, Steven W. Novak2...percent phenocrysts of sanidine, plagioclase, biotite, fayalite, and ferroedenite (Novak, 1984). As much...fluvial tuff. Phenocrysts of quartz, sanidine, and biotite form less than 5 percent of the tuff. Unit contains...Ma (Novak, 1984). Forms cliffs in exposures in north-central part of the quadrangle. Unit is as great...syenite complex units (Tss, Tsx, Ttf, and Ttt) in the north-central part of the quadrangle. Thickness is as |  | | Report (issue) | | in the San Emigdio foothills west of Grapevine Canyon and north of the San Andreas fault provide evidence...similar to the indistinct foothill belt farther north 243 244 CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1929...TO PUBLISHED REPORTS ON OIL 1 San Joaquin Valley north of Coalinga (Bull.603) Priest Valley Valle (Bull...Valley- Parkfield (8ull.69l) 5 Northwestern Kern County (Bulls,72l and 406) 7 8 9 10 11 IZ 13 14 15 16...the San Emigdio foothills between Santiago and Grapevine Creeks was previously mapped by R. W. Pack and |  | | Report (issue) | | GEOLOGIC MAP OF THE DELAMAR 3 NW QUADRANGLE, LINCOLN COUNTY, NEVADA By Robert B. Scott, William R. Page, and...and is about 85 m thick in the east part Tkg Grapevine Spring unit-Rhyolitic to trachytic, informally...tuff, consisting of one compound cooling unit. Grapevine Spring unit is unit VI of Novak (1984). Map unit...the unit is 14.1 Ma (Novak, 1984). Thickness of Grapevine Spring unit ranges from about 15 m along the west...of the two zones ranges from about 170 m in the north part of the quadrangle to 60 m in the southwest |  | | Report (issue) | | San Emigdio and western Tehachapi Mountains, Kern County, California........ FIGURE 1. 2. 3. 4. 5. 6. 7...east side of Grapevine Creek showing large landslide deposits downslope from Grapevine Peak ...........Photograph of view southwest of west side of Grapevine Creek showing large landslide deposits ..................................... Geologic map of Grapevine Creek area and measured type section of the Uvas...18 VI CONTENTS Page 10. Photograph of view north into Liveoak Canyon showing exposures of the Uvas |  | | Report (volume) | | Great Basin ranges of California, north of Mohave Desert,... " 187 Grapevine and Funeral ranges -..---......Creek..............----.--..-.---.--..-. Volcanics north of Furnace Creek .......---..---------.-.---. Structure...Wheeler Peak, Snake Range, from Robinson's ranch; B, North end of Schell Creek Range, from Antelope Range....-----....-...---- 15 26 IV. A, Snake Mountains north of Robinson's ranch; B, Antelope Range, east side..... VII. A, North scarp of Stonewall Mountain, Ralston Desert; B, Pyramid Peak, Grapevine Range, from |  | Wrucke, Chester T., Werschky, R.S., Raines, G.L., Blakely, R.J., Hoover, D.B., Miller, M.S. (1984) Mineral resources and mineral resource potential of the Little Sand Spring Wilderness Study Area, Inyo County, California. Open-File Report Vol. 1984 (84-557) US Geological Survey doi:10.3133/ofr84557 | Report (issue) | | the Little Sand Spring Wilderness Study Area Inyo County, California Chester T. Wrucke, R. Scott Werschky...Little Sand Spring Wilderness Study Area, Inyo County, California........................... In pocket.................... 3. Geologic map of the Sylvia mine area and vicinity.................................CDCA-119), California Desert Conservation Area, Inyo County, California. SUMMARY The Little Sand Spring Wilderness...mountainous terrain that borders the east side of the north end of Death Valley, was studied in 1981-83 using |  | Scott, Robert B., Harding, Anne E., Swadley, W.C., Novak, Steven W., Pampeyan, Earl H. (1991) Preliminary geologic map of the Vigo NW Quadrangle, Lincoln County, Nevada. Open-File Report Vol. 1991 (91-389) US Geological Survey doi:10.3133/ofr91389 | Report (issue) | | GEOLOGIC MAP OF THE VIGO NW QUADRANGLE, LINCOLN COUNTY, NEVADA By Robert B. Scott \ Anne E. Harding 2...containing 2-5 percent phenocrysts of quartz, sanidine, biotite, and ferroedenite (?). Most of unit is vitric;...ranges from 10 to at least 65 m thick Tlrbv Late biotite rhyolite vent (Miocene) Pinkish-gray to pale-yellowish-brown...consisting of quartz, sanidine, and biotite. Distinguished from late biotite rhyolite (Tlrb) by uniformly high-angle...boundaries of the unit in the Elgin SW quadrangle to the north. Exposed at one locality along northern boundary |  | | Report (issue) | | CRATER FLAT TUFF AND SOME OLDER VOLCANIC UNITS, NYE COUNTY, NEVADA by W. J. Carr, F. M. Byers, Jr., and Paul...CRATER FLAT TUFF and SOME OLDER VOLCANIC UNITS, NYE COUNTY, NEVADA By W. J. Carr, F. M. Byers, Jr., and...CRATER FLAT TUFF, AND SOME OLDER VOLCANIC UNITS, NYE COUNTY, NEVADA By W. J. Carr, F. M. Byers, Jr., and Paul...formation near the southeast edge of Crater Flat, just north of U.S. Highway 95. In previous work, the Tram Member...beneath Crater Flat are unknown. 9 Part of unit Tht: biotite-hornbelnde rhyolite west of Split Ridge, ash-fall |
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