 | | Report (issue) | | trip across rocks of Dan River Basin, Stokes and Rockingham counties, North Carolina. . . . . . . . . . ...Mountain going north on U.S. Highway 29, Pittsylvania County, Virginia (from Myertons, 1963, p. 60-61) . . ...Mayodan, and Stops 6 and 7, near Pine Hall in Stokes County. The route will then be retraced in part to Stops...latter being just northeast of Stoneville in Rockingham County. At the conclusion of Stop 9, the caravan...29 South. 0.5 North Carolina state line (Caswell County). 1.05 Turn RIGHT on NC 700 exit ramp. 0.25 Turn |  | | Report (issue) | | of Rhode Island) was published in 1917 by Benjamin K. Emerson as U.S. Geological Survey Bulletin 597. (The...principal exceptions -Chapters H and I T TERTIARY K CRETACEOUS J -1 1 1 Mesozoic basins ~S| g JURASSIC...and volcanic rocks (J"fc) 50 Cretaceous sediments (K)........................................ 50 Tertiary...fine-grained mafic quartzite, quartz-feldspar gneiss, micaquartz feldspar gneiss, amphibolite, tuff, and volcaniclastic...and Light-colored, fine-grained quartzite, tuff. feldspar-quartz gneiss, biotite gneiss and hornblende gneiss |  | | Journal (article/letter/editorial) | | Dartmouth College, Hanover, New Hampshire 03755, USA 2 U.S. Geological Survey, MS 963, P.O. Box 25046...25046, Federal Center, Denver, Colorado 80225, USA Abstract. U-Th Pb systematics for zircon and monazite...O. Box 25046, Federal Center, Denver, CO 80225, USA " N T 0 i I00 , , kilometers i Mass. Conn...Anticlinorium, M S : Merrimack Synclinorium, R A : Rockingham Anticlinorium O01O-7999/79/0071/0001/$02.20...west, near the Connecticut River, and by the Rockingham Anticlinorium to the east, near the sea coast |  | | Report (volume) | | ----------Six new members of the James Run Formation, Cecil County, northeastern Maryland, by Michael W. Higgins ...--------------------The Massanutten Sandstone in Rockingham, Page, Shenandoah, and Warren Counties, Virginia...Arizona -----Generalized geologic map of Cecil County, Md., showing members of the James Run Formation...--------------------------- A135 Index. map showing Page, Rockingham, Shenandoah, and Warren Counties, Va.; the Silurian... D.J.• , 1976, Geologic map of western Whatcom County, Washington: U.S. Geol. Survey Misc. Geol. Inv |  | | Report (issue) | | Maine Massachusetts New Hampshire Rhode Island Vermont OPEN-FILE REPORT 93-292-A Prepared in Cooperation...Massachusetts, New Hampshire, Rhode Island, and Vermont R. Randall Schumann EDITOR OPEN-FILE REPORT 93-292-A...Preliminary Geologic Radon Potential Assessment of Vermont Linda C.S. Gundersen andR. Randall Schumann 219...aerial radioactivity, and indoor radon data by county. Because of constraints on the scales of maps presented...designated the K horizon in modern soil classification schemes. The C horizon underlies the B (or K) and is |  | | Report (issue) | | Williams, S. Dowsett, L. Cosgrove Desktop publishing: K. S. Noonan Printed by Haymarket Printing, Perth, Western............................................... 14 USA ............................................................................................... 60 USA ...................................................100 Geology of the area around Mundijong and Rockingham ...............................................structural clay samples from the Mundijong and Rockingham regions ............................ 98 Test |  | | Journal (article/letter/editorial) | | In metapelites, assemblages are typified by K-feldspar+sillimanite+ plagioclase+quartz, hercynite+quartz...andalusite and muscovite, and in the absence of stable K-feldspar, P - T conditions for M2 lie very close to 4...which is stated by Vokes (1969) and others (e.g. Rockingham and Hutchinson 1980) to be well established in...Orange Free State, S. Africa (in Afrikaans) (1986) Rockingham, C., Hutchinson, R.: Metamorphic textures in |  | | Journal (article/letter/editorial) | | 66045 K. D. CARD Ontario Division of Mines, Ministry of Natural Resources, Toronto, Ontario AND K. L....account for the magnetic anomaly. Halladay and Rockingham also #reportedthe pronounced, circular to elliptical...constitutes 10 to 15%. Zircon, M. J. Halladay and J. E. Rockingham of that sphene, and apatite are common, and in...rounded quartz grains and having relatively low feldspar contents, the present authors consider Sanford's...years ago, at the request of the senior author, R. K. Wanless and B. V. Sanford of the Geological Survey |  | | Report (issue) | | Thomas Legris Tooey's Lake Gorman Lake Quade Rockingham Mines Ambis Mentor Sundstrom (North) Sundstrom...Greyhawk Howard Kerr Lockwood York River Barr Feldspar Quarry Percy Spain Mine Peler-Rock (West) Dempsey...Small Quarry, Barr Feldspar Quarry Occurrence 22—Geology of the Main Quarry, Barr Feldspar Quarry Occurrence...Pembroke-Renfrew study area encompasses approximately 14 000 k m 2 (Figure 1) within the Bancroft map sheet, NTS...a mineralogy which is very potassic; potassium feldspar dominates over plagioclase. Fracture fillings |  | | Report (volume) | | changes in stratigraphic nomenclature in Oregon, Vermont, Massachusetts, and southern Pakistan U.S. GEOLOGICAL...stratigraphy of the Connecticut Valley trough, eastern Vermont, by Norman L. Hatch, Jr. S 3. Revisions to the...Massachusetts, and the southern Green Mountains, Vermont and Massachusetts, by Nicholas M. Ratcliffe 9 4...Foulweather and Euchre Mountain quadrangles, Lincoln County, Oregon: U.S. Geological Survey Miscellaneous Investigations...Stratigraphy of the Connecticut Valley Trough, Eastern Vermont By Norman L. Hatch, Jr. Abstract Proposed changes |  | | Journal (article/letter/editorial) | | ne-epidote, time~equivalent chlorite-spotted, feldspar-white mica calcite,clinozoisite,white mica, quartz...prominentquartzand ogy,andmajorelementchemistry, but theyrepresent K-feldsparphenocrystsin a recessivelyweathered ARCTIC...thematrix andalsoaspartialto completerimsaroundK-feldspar, or morecommonly,aroundquartzphenocrysts. These...quartz-only 'porphyries,which may have ghostsof K-feldspar phenocrysts andalbiteporphyroblasts in the groundmassand...quartz phenoeryst porphyries,alteredquartzandK-feldspar phenoerystporphyries,aphyrietuff and l.apilli |  | | Book (volume) | | beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles...of rd. a few yds., outcropRose Quartz. DOUGLAS COUNTY CORSICA, S on US 281 to Armour, area rd. cuts, |  | Mills, Hannah K., Piercey, Stephen J., Toole, Trish (2016) Geology, alteration, and lithogeochemistry of the Hood volcanogenic massive sulfide (VMS) deposits, Nunavut, Canada. Mineralium Deposita, 51 (4) 533-556 doi:10.1007/s00126-015-0612-1 | Journal (article/letter/editorial) | | massive sulfide (VMS) deposits, Nunavut, Canada Hannah K. Mills 1 & Stephen J. Piercey 1 & Trish Toole 2 Received:...previously identified in the ABVB, Editorial handling: K. Kelley and G. Beaudoin Electronic supplementary material...which is available to authorized users. * Hannah K. Mills hkmills@gmail.com 1 Department of Earth Sciences...and major element lithogeochemistry (Gill 1977; Rockingham 1979; Hassard 1983). Several studies in the mid-1990s...with chlorite alteration confined horizons. and K-feldspar alteration of all to fractures. Common Felithologies |  | | Journal (article/letter/editorial) | | assemblage overprinting a muscovite – quartz - K-feldspar ± cordierite assemblage (Bucher and Frey, 1994)...(droppers) that crosscut post-mineralisation green feldspar pegmatites and the regional fabric and extend...pegmatite assemblage consists of white and green feldspar, quartz, biotite, garnet, sillimanite and abundant...apatite, sillimanite, muscovite, magnetite, alkali feldspar and trace amounts of gahnite, chlorite, zircon...staurolite (Spry, 2000), and green Pb-rich amazonitic feldspar at upper amphibolite-granulite facies conditions |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay...HIGHLAND COUNTY SINKING SPRING, area ore deposit (most important in Ohio) ⎯Hematite. HOCKING COUNTY AREA |  | | Book | | Virginia the contributions of the photographers G. K. McCauley and H. C. Porter of V.P.I., T. M. Gathright...the nucleus may be considered to be in one shell (K), whereas the other six satellitic electrons which...ISOMETRIC y OA O CD O HEXAGONAL 4X n TETRAGONAL k FIG. 1.4. Clues to common crystal shapes of each...Chestnutford, Bed¬ ford County, and from the Barton Tract in southwestern Floyd County is a variety of amphibole...amphibole. Apophyllite from Centreville, Fairfax County, has gained wide acclaim since its exhibition in |  | | Report (issue) | | . . . 7 Metamorphic Gradients in Pittsylvania County, Virginia (J. P. Gregory). . . . . . . . . . .... 49 Cataclastic Zone Associated with the Davie County Triassic Basin (D. V. Milton). . . . . . . . ....contact of the Candler from southern Albemarle county southward to Leesville, just north of the study...Thrust, in Proceedings, “The Caledonides in the USA”, I.G.C.P. project 27: Caledonide Orogen, 1979 meeting...pegmatites from northeastern Stokes and northwestern Rockingham counties. These post-metamorphic intrusions generally |  | | Report (volume) | | Highway 49 (Skyway Road) near town of Abel, Cleburne County. Absaroka Supergroup/Volcanic Supergroup U ABRK03...volcanic field, Yellowstone National Park, Park County, Wyo. Academy Church Shale Member (Springer Formation)...W1/2NW1/4NE1/4SE1/4 sec. 1, T. 3 s., R. 2 E., Carter County. Adams Formation ADMS01 1. Holocene 2. Alaska (SE)...Quadrangle, lat 45° N., long 70°50'-55' W., Oxford County. Adamstown Member (Frederick Limestone) U ADMS06...section W of Lime Kiln in Frederick Valley, Frederick County. Named for town of Adamstown. Adobe Town Member |  | | Report (issue) | | .............. 67 Nederland; mining in Boulder County .............................. 67 Boulder Canyon...shoshonite (Van Horn, 1976). The Cretaceous-Tertiary (K-T) boundary is located within sediments of the Denver...above Colorado Highway 58. R.W. Brown identified the K-T boundary in 1939 based on fossil-bearing strata...have recently been incorporated into the Jefferson County Open Space system, and most activities, including...of the century clays were being mined in Douglas County and near Canon City, and by the early 1900's clays |  | Guo, Chunli, Zeng, Lingsen, Li, Qiuli, Fu, Jianming, Ding, Tiping (2016) Hybrid genesis of Jurassic fayalite-bearing felsic subvolcanic rocks in South China: Inspired by petrography, geochronology, and Sr–Nd–O–Hf isotopes. Lithos, 264. 175-188 doi:10.1016/j.lithos.2016.08.020 | Journal (article/letter/editorial) | | ferrosilite (~10 vol.%), fayalite (~8 vol.%), and K-feldspar (~5 vol.%). In addition, many scattered or clustered...brownish yellow. Plagioclases are more abundant than K-feldspars; both of them are fresh and do not exhibit...(ferrosilite), Supplemental data Table 5 (plagioclase and K-feldspar), Supplemental data Table 6 (biotite), and Supplemental...had an andesine (An38-An48) composition, and the K-feldspars SC R belonged to orthoclase (Supplemental...the Xishan CE P FBF rocks should belong to high-K calc-alkaline metaluminous volcanics (Figure 8). The |  | | Journal (article/letter/editorial) | | whether this fluid phase was retained or expelled. K E Y WORDS Alkaline granites Carbonatites Africa Structural...anorogenic peraluminous to peralkaline alkali-feldspar granites throughout the Saudi Province in the...andesitic compositions with fragmented and broken feldspar and quartz phenocrysts. For the undersaturated...and 307 AFRICAN ANOROGENIC ALKALINE MAGMATISM k, 1 Monbadio 2 Bingo - Mont Home 3 Lueshe L Kirumba...andesitic compositions with fragmented and broken feldspar and quartz phenocrysts. The subvolcanic assemblages |  | | Book | | University of California, Los Angeles, California, USA ISBN-13: 978-3-642-46140-8 DIO: 10.1007/978-3-642-46138-5... .. 18.20 .. . " w 0 "E 18.10 .K 0 18.00 17.90 ... o 00 11.80 17.70 0.50 0...Ti per calculated chemical formula, Mn<0.28, (Na+K)<1.5, (F+Cl) <0.30 and negligible amounts of unusual...ions per formula unit were: Ti <0.25, Mn <0.30, (Ca+K) <0.50, Na>1.35 and (F+CI) <0.30. In all cases, the...distributions among types varying in (Mg+Fe+ 2), (Na+K) and Al contents only. For the end member formulae |  | | Report (issue) | | biotite in some gneisses from Mason Mountain, Macon County, N.C --------------------8. ~mong minerals of some...between rutile and biotite in some quartz-garnet-feldspar-biotite-sillimanite-cummingtonite-pyroxene-graphite...aphite gneisses from Mason Mountain, Macon County, N.C. TABLE [Mineral percentage established by 2...Subramaniam, 1957) Garnet enderbite Chl13 (0.99) Quartz K-feldst>ar Plagioclase Garnet HYPersthene Biotite ...Charnockite 4639 (0.56) ----------------- Quartz K-feldsnar Plagioclase H vpel'lsthene "Ores" Chamockite |  | | Journal (article/letter/editorial) | | granites. The abundanceand interrelationships of Rb, Li, K, Ba, Sr, Zr, Nb, Th, rare earth elements,and Mn are... the tin-bearinggranitesare characterized by lbw K/Rb and Ba/Rb and high Rb/Zr ratios. However, the...androofzonesof biotitegranites.This reddenedgranite (K-feldspar+ hematite+ sericite) form of mineralizationis...spectrographically pure chemicals.Cu, Zn, Pb, Mn, K, and Na were determinedby atomicabsorptionspectrophotometry...B) Sn-Na -0.35 -0.07 Sn-K Sn-Zn Sn-Pb Nb-Zr Nb-Th Nb-Rb Rb-Th Rb-Na Rb-K +0.24 +0.21 +0.20 +0.36 +0 |
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