 | | 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) | | stable environment along the western edge of the North American craton. In latest Devonian and Early Mississippian...Diamond Mountains in the eastern part of Eureka County, Nevada (figs. 1, 2). Both the Diamond Peak Formation...sequences in the Diamond Mountains and northern Pancake Range resulted from multiple tectonic pulses or...NEVADA 23 Northern Pinon Range 24 Central Elko County 21 Southern Diamond Mountains 11 Indian Creek...Range northwest of Elko and in the Snake Mountains north of Wells (fig. 1) were named the sandstone of Melandco |  | | Report (volume) | | Palisade Mesa and The Wall Wilderness Study Areas, Nye County, Nevada U.S. GEOLOGICAL SURVEY BULLETIN 1731-B...Palisade Mesa and The Wall Wilderness Study Areas, Nye County, Nevada By MICHAEL F. DIGGLES, J. THOMAS NASH,...Palisade Mesa and The Wall Wilderness Study Areas, Nye County, Nevada U.S. Geological Survey Bulletin 1731-B...The Wall (NV-060-163) Wilderness Study Areas, Nye County, Nevada. Ill CONTENTS Summary Bl Abstract...Palisade Mesa and The Wall Wilderness Study Areas, Nye County, Nevada B2 2. Generalized geologic map and areas |  | | Report (issue) | | Mica Deposits of the Blue Ridge in North Carolina GEOLOGICAL SURVEY PROFESSIONAL PAPER 577 Work done...done in part in cooperation with the North Carolina Department of Conservation and Development and in part...Administration Mica Deposits of the Blue Ridge in North Carolina By FRANK G. LESURE GEOLOGICAL SURVEY PROFESSIONAL... Work done in part in cooperation with the North Carolina Department of Conservation and Development... Geologic map of part of the Blue Ridge of North Carolina and Tennessee. 2-6. Maps showing location of |  | | Report (issue) | | tuffaceous sedimentary strata that accumulated in the north edge of the collapse caldera after eruption of Northumberland...-------Photograph showing Pancake Summit Tuff on east side of range north of the road from Big Smoky...Petes Canyon window about 12 miles (19 km) to t he north. The Ikes set by the age of rocks that overlap the...Other ash-flow sheets of regional extent are the Pancake Summit Tuff, dated at about 31 m.y.; the Bates...of Hoodoo Canyon, tuff of Stoneberger Canyon, Pancake Summit Tuff, and Northumberland Tuff are rich in |  | | Report (issue) | | Coal Zone, Puget Group, John Henry No. 1 Mine, King County, Washington Brownfield, M. E., Affolter, R...Coal Distribution, the Western Interior of Middle North America Roberts-Robinson, L.N, and Kirschbaum, M...History of the Lower Virgin and Muddy Rivers, Clark County, Nevada Williams, V. S. .........................Structure of Central Railroad Valley Area and Adjacent Pancake Range, Nevada, Western Margin of the Paleogene...COAL ZONE, PUGET GROUP, JOHN HENRY NO. 1 MINE, KING COUNTY, WASHINGTON By Michael E. Brownfield, Ronald |  | | Journal (article/letter/editorial) | | RAMEZANI, S.A. BOWRING, D.S. BULLEN, R.P. HALL, J.A. PANCAKE AND J. MUKWAKWAMI 233 Paleoproterozoic intraplate...Texas Christian University, Fort Worth, Texas 76129, USA email: r.hanson@tcu.edu W.A. Gose Department of...Geosciences, University of Texas, Austin, Texas 78712, USA email: wulf@mail.utaxas.edu J.L. Crowley, J. Ramezani...Institute of Technology, Cambridge, Massachusetts 02139, USA email: jlcrowle@mit.edu ramezani@mit.edu sbowring@mit...J.A. Pancake EG&G Technical Services, Inc., Morgantown, West Virginia 26505, USA email: Pancake@eg.netl |  | | Report (issue) | | Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product...Volcanic Rocks at the Sleeper Gold-Silver Mine, Humboldt County, Nevada, by J. Thomas Nash and Mark W. Bartlett... 2 Geology and Ore Deposits of the Valmy and North Peak Quadrangles, Battle Mountain Mining District...Stratigraphy and Structure of the Northern Pancake Range, Nye County, Nevada: A Progress Report, by William...Fill Above the Rabbit Creek Gold Deposit, Humboldt County, Nevada, by Dawn J. Madden-McGuire, Charles W. |  | | Report (issue) | | Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product...THE GREAT BASIN: A BRIEF SYNOPSIS Volcanism began north of what is now the Great Basin in the Paleocene...heading north on US-93. Mileage is counted from Union Pacific train station. As we turn north, the outcrop...drilling program in the late 1940's and early 1950's by mine operators seeking extensions of ore bodies into...phenocrysts, in order of decreasing abundance, of plagioclase, quartz, biotite, hornblende, Fe-Ti oxides, sanidine |  | | Report (issue) | | Geology of the Lunar Crater Volcanic Field, Nye County, Nevada By DAVID H. SCOTT and N. J. TRASK CONTRIBUTIONS..._ 5 4. Very fresh/appearing black basalt flows north of U.S. Highway 6___----_---------------------_5...series of narrow linear craters on the mare material north of the crater Gruithuisen ____ ___ 17 15. Domes...GEOLOGY OF THE LUNAR CRATER VOLCANIC FIELD, NYE COUNTY, NEVADA BY DAVID H. SCOTT and N. J. TRASK ABSTRACT...field is in the southern part of the Pancake Range, Nye County, Nev. (fig. 1), and is crossed by U.S |  | | Report (issue) | | Restricted to two small masses east of Santa Rosa Mine Heterogeneous tonalite—Medium-grained, foliated...Rock contains moderately abundant elliptical- to pancake-shaped, mesocratic to melanocratic inclusions....single irregular-shaped mass east of Santa Rosa Mine Granodiorite of Arroyo del Toro pluton (Cretaceous)—Light...MAP OF THE STEELE PEAK 7.5' QUADRANGLE, RIVERSIDE COUNTY, CALIFORNIA 23 T 25 88 73 110 EL 74 116...Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm |  | | Report (issue) | | mineralogic diversity that exists along the cordillera of North and South America. We wish to thank all of the field...northwest-trending mineral belts transverse to the generally north-south ranges of central and northeastern Nevada...Talapoosa and Olinghouse districts and the Gooseberry mine. Northeast of Lovelock we pass through Roberts'...the quartz-alunite ledges present in the hills north of Sparks in the WEDEKIND mining district. The Wedekind...Virginia and Pah Rah Ranges . The Pah Rah Range is north of the river and the Virginia 1:-0· 1 1~ _ |  | | Journal (article/letter/editorial) | | Syracuse University, Syracuse, New York 13244, USA (Received 30 July 2003; revised 7 November 2003)...contain abundant feldspar (both K-feldspar and plagioclase) and quartz, and minor amounts of hornblende...Newcomb, western Essex County and in the Town of Long Lake, eastern Hamilton County, New York (latitude...bulk samples show that quartz, K-feldspar and plagioclase are the most abundant minerals in these forest...0.6 1.4 0.8 WL – Woods Lake watershed; PHC – Pancake Hall Creek, Big Moose Lake watershed Sample designation |  | Rasoazanamparany, C., Widom, E., Valentine, G.A., Smith, E.I., Cortés, J.A., Kuentz, D., Johnsen, R. (2015) Origin of chemical and isotopic heterogeneity in a mafic, monogenetic volcanic field: A case study of the Lunar Crater Volcanic Field, Nevada. Chemical Geology, 397. 76-93 doi:10.1016/j.chemgeo.2015.01.004 | Journal (article/letter/editorial) | | Shideler Hall, Miami University Oxford, Ohio, 45056 USA 2 Department of Geology, 411 Cooke Hall, University...University of New York, Buffalo, New York, 14260 USA 3 Department of Geoscience, 4505 S. Maryland Pkwy...University of Nevada Las Vegas, Las Vegas, Nevada, 89154 USA 4 School of GeoSciences, The University of Edinburgh...over two mountain ranges, the Reveille Range and Pancake Range (Figure 1). Previous studies have shown that...Range, and has generally shifted northward to the Pancake Range with time (Foland and Bergman, 1992). The |  | Cortes, J. A., Smith, E. I., Valentine, G. A., Johnsen, R., Rasoazanamparany, C., Widom, E., Sas, M., Ruth, D. (2015) Intrinsic conditions of magma genesis at the Lunar Crater Volcanic Field (Nevada), and implications for internal plumbing and magma ascent. American Mineralogist, 100 (2) 396-413 doi:10.2138/am-2015-4812 | Journal (article/letter/editorial) | | Plio-Pleistocene basaltic fields that extends north-northeast from Death Valley (California) into central...20 km extending from the Reveille Range to the Pancake Range (Fig. 1). Previous work in the LCVF has focused...veinlets of intermediate composition in the younger Pancake Range volcanoes; Dickson (1997)]. Field description...notable in the field for the abundant euhedral plagioclase megacrysts, ~1–1.5 cm in size and rarely up to...mm), and 10% euhedral plagioclase (1 to 2 mm), in a groundmass of plagioclase and ferromagnesian minerals |  | | 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 (issue) | | REPOSITORY SITE AT YUCCA MOUNTAIN, SOUTHERN NYE COUNTY, NEVADA compiled by the U.S. Geological Survey...1984 PREFACE Yucca Mountain in southern Nye County, Nevada has been under investigation since late...surrounding physiographic provinces in western North America......................... Shaded relief map...closed basins. The mountain consists of several north-trending linear ridges, which are underlain by...time on the western continental shelf of ancient North America. These rocks comprise the major hydro- |  | | Journal (article/letter/editorial) | | Texas Christian University, Fort Worth, TX 76129, USA a r t i c l e i n f o Article history: Received...grey in colour and often mottled white with plagioclase. Ferrodiorite, syenite and ferrogranophyre occur...sills in Botswana see Hanson et al. (2006) and Pancake (2001). The lithologies comprising the sedimentary...Formation attains a thickness of around 1000 m to the north of Middelburg (SACS, 1980). In general, the mesa...associated sills also occur in eastern Botswana, north of the area shown in Fig. 2, where they have been |  | | Report (issue) | | the Steele Peak 7.5-minute Quadrangle, Riverside County, California by D.M. Morton1 U.S. Geological Survey...Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product...biotitehornblende tonalite. Contains common ellipitical- to pancake-shaped, meso- to melanocratic inclusions. Most...the tonalite. Contains common ellipitical- to pancake-shaped, meso- to melanocratic intrusions Tonalite...Hornblende constitutes 25 to 45% of the rocks; plagioclase constitutes the remainder with local biotite |  | Best, Myron G., Barr, Deborah L., Christiansen, Eric H., Gromme, Sherman, Deino, Alan L., Tingey, David G. (2009) The Great Basin Altiplano during the middle Cenozoic ignimbrite flareup: insights from volcanic rocks. International Geology Review, 51 (7) 589-633 doi:10.1080/00206810902867690 | Journal (article/letter/editorial) | | University, Provo, UT 84602-4606, USA 420 Chaucer Street, Palo Alto, CA 94301, USA; cBerkeley Geochronology Center...Center, Berkeley, CA 94709, USA b (Accepted 26 February 2009) Uncertainty surrounds the fate of the...area that became the Great Basin of the western USA ranks as one of the most voluminous productions of...subduction of oceanic crust beneath the western North American plate resulted in arc magmatism. In addition...Mesozoic –early Cenozoic development of the western USA, Molnar and Lyon-Caen (1988, p. 202) ‘presumed [the | | | Report (issue) | | construction or mining activities. Largest areas are in north-central part of quadrangle related to grading associated... alluvial fan deposits. Covers extensive areas north and south of Santa Ana River. Most of unit is slightly...slightly to well foliated and contains discoidal to pancake-shaped melanocratic inclusions in foliation plane...subequal biotite and hornblende, quartz and plagioclase. Potassium feldspar generally less than two percent...mesocratic to melanocratic tonalite. Elliptical- to pancake-shaped, mesocratic to melanocratic inclusions are |  | | Journal (article/letter/editorial) | | alkali feldspars, and for the first time, eight plagioclase samples. To accurately measure structural H concentration...similar to the OH bands found in quartz. The other plagioclase samples used in the IR calibration have broad...indicative of structural OH. The OH vector in plagioclase is preferentially aligned parallel to the crystallographic...axis. The concentration of structural OH in the plagioclase samples ranges from 210–510 ppm H2O by weight...structural H determined from NMR (OH and H2O) for plagioclase and alkali feldspars. The integral absorption |  | | Journal (article/letter/editorial) | | have resulted from the flotation of cumulus plagioclase, and the ultramafic lunar mantle, thought to...monzogranite, with 23% quartz, 32% K-feldspar and 33% plagioclase. Where not brecciated or shock - melted (30-50...alkali feldspar lies in the Or80-Or97range, while plagioclase is calcic. The alkali feldspar granite contains...1.54.8 wt.% BaO) and normally zoned An,,.,, plagioclase constitute the main feldspar assemblage. Moreover...of almost pure K-feldspar with highly calcic plagioclase is unknown within terrestrial monzogranites. |  | | Journal (article/letter/editorial) | | 3 (1999) 0 Meteontical Society, 1999 F'nnted in USA Space weathering on the Moon: Patina on Apollo 17... Texas 77058, USA *MVA, Inc., 5500/200 Oakbrook Parkway, Norcross, Georgia 30093, USA 3NASA Johnson Space...Space Center, Houston, Texas 77058, USA *Correspondence author's e-mail address: susan.j.wen~orth@lsc...micrometeorite flux based on microcrater and glass pancake populations. Blanford et al. (1974) found textures...measurements, a small fragment of the 76015 patina on plagioclase was embedded in low-viscosity epoxy. Transmission |  | | Journal (article/letter/editorial) | | 3.1 Ga (e.g. Armstrong et al., 1991). West and north of this shield occur granitoid gneiss-greenstone...types of thrusts were mapped: (i) northwest to north shallow-dipping thrusts duplicating the Kanye rhyolites...indicates that the repetition is due the northwest to north dipping thrusts. The Mokalaka Fault appears, therefore...(Figure 2). The Moshaneng Dolerite yielded a K-Ar plagioclase-pyroxene date of 1110 ± 44 Ma (Jones and McElhinny...1966) and a U-Pb zircon age of 1079.3 ± 1.9 Ma; (Pancake, 2001), suggesting that it is part of the Mesoproterozoic |
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