 | Will, T.M., Lee, S.-H., Schmädicke, E., Frimmel, H.E., Okrusch, M. (2015) Variscan terrane boundaries in the Odenwald–Spessart basement, Mid-German Crystalline Zone: New evidence from ocean ridge, intraplate and arc-derived metabasaltic rocks. Lithos, 220. 23-42 doi:10.1016/j.lithos.2015.01.018 | Journal (article/letter/editorial) | | Universität Würzburg, Am Hubland, 97074 Würzburg, Germany GeoZentrum Nordbayern, University Erlangen-Nürnberg...Erlangen-Nürnberg, Schlossgarten 5a, 91054 Erlangen, Germany Department of Geological Sciences, University of Cape...basement complexes that are exposed in central Germany. New lithogeochemical and Sr–Nd–Pb isotope data...Spessart within-plate (ε330 Nd rocks have considerably lower TiO2 concentrations but higher Th/Nb ratios. In...composed of variably deformed granitic gneiss, quartzite, marble, calcsilicate rock, garnet-bearing biotite |  | Nasir, S., Okrusch, M., Kreuzer, H., Lenzt, H., H�hndorf, A. (1991) Geochronology of the Spessart Crystalline Complex, Mid-German Crystalline Rise. Mineralogy and Petrology, 44 (1) 39-55 doi:10.1007/bf01167099 | Journal (article/letter/editorial) | | Universit~it W/irzburg, Wiirzburg, Federal Republic of Germany 2 Institute of Earth and Environmental Sciences...Geowissenschaften und Rohstoffe, Hannover, Federal Republic of Germany With 6 Figures Received June 28, 1990; accepted...analytical precision. Two hornblendes and one muscovite show slightly older dates up to 328 Ma. On the...Ausgangsmaterials der Rotgneise interpretiert. Hornblenden, Muscovite und Biotite aus unterschiedlichen lithostratigraphischen...dates are indicated; B biotite, H hornblende, M muscovite ing, S W - N E striking units can be distinguished |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was... quartz, and mica are the main constituents. Quartzite consists of quartz only, mica schist of quartz...culture, derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric...of these fourfold axes in all. The considerably lower symmetry of a monoclinic crystal is shown in Fig...crystallographic symmetry of a body may often be lower than its apparent geometric symmetry. In a pyrite |  | Will, T.M., Schmädicke, E., Ling, X.-X., Li, X.-H., Li, Q.-L. (2018) New evidence for an old idea: Geochronological constraints for a paired metamorphic belt in the central European Variscides. Lithos, 302. 278-297 doi:10.1016/j.lithos.2018.01.008 | Journal (article/letter/editorial) | | Universität Würzburg, Am Hubland, 97074 Würzburg, Germany GeoZentrum Nordbayern, Universität Erlangen-Nürnberg...Erlangen-Nürnberg, Schlossgarten 5a, 91054 Erlangen, Germany State Key Laboratory of Lithospheric Evolution, Institute...conditions were attained shortly afterwards. The lower plate eclogite formed in a fossil subduction zone...extends from the Iberian Peninsula to NW France and Germany and further into SW Poland (e.g., Nance and Linnemann...Geiselbach Spessart SP-68 Alzenau Mömbris 10 km SP-57 50° 00‘ N Aschaffenburg Spessart-Odenwald tectonic |  | | Journal (article/letter/editorial) | | investigations of paired belts of calcsilicate fels and quartzite (SE German Basement) Quo vadis David London´s...investigations of paired belts of calcsilicate fels and quartzite (SE German Basement) - Quo vadis David London´s...investigations of paired belts of calcsilicate fels and quartzite (SE German Basement) Quo vadis David London´s...Leibniz University, Welfengarten 1 D-30167 Hannover, Germany Abstract: In some areas of the Variscan orogen...the Hagendorf-Pleystein Pegmatite Province, SE Germany, and present in many ensialic orogens elsewhere |  | | Book | | Justus-Liebig-Universität Senckenbergstrasse 3 35390 Giessen Germany K. WEBER Institut für Geologie und Dynamik der...Göttingen Goldschmidtstrasse 3 37077 Göttingen Germany Cataloging-in-Publication D a t a applied for...international conference in G6ttingen/Giessen, Germany. Discussions were focused on the Tectonothermal...Geological Survey of Hessen Leberberg 9 65193 Wiesbaden Germany V. BACHTADSE Institut fur Allgemeine und Angewandte...Ludwig-Maximilians-U niversitat Theresienstr. 41 80333 Munchen Germany M. BANAS University of Mining and Metallurgy AI |  | | Journal (article/letter/editorial) | | green sandstone, Sandstone, Sandy white medium(quarry (calc. yellow Sandstone, of shale. rough-bedded...OneotaMadison St. UpperYellow Lower Micaceous Basal - feet heavy, i50 possibly to shale, Lower variable of beds...BASAL LS.;ASAL6S GREENSAND GREENSAND UPPER QUARRY LOWER WORMSTONES CALCAREOUS OLITEZONE YELL7OW "LINKSTONL"...DISCONFORMITY6T-UNCONFORMITY MADISON? JORDAN FRANCONIA ST -DISCONFORMITY -DISCONFORMITYO -DISCONFORMITY...rather general occurrence near the contact of quartzite-like gray sandstones and by the great differences |  | | Report (issue) | | . . Bikita Quarry Lepidolite ...... . Chestnut Flat Mine Muscovite .... . Petrick Quarry Biotites .....Introductory Statement ............ . 86 Vermilion District .................. . General Statement .........Structure and Thickness .... . Ages for the Vermilion District Soudan Area ................ . Knife Lake Area...Statement ....................... . 65 . . .. Mesabi District .............................. . General Statement...Late Precambrian Time for Northern Minnesota. . .. Lower Keweenawan. . . . . . . . . . . . . . . . . . . |  | | Report (volume) | | ... Grafton district...................................... Alstead area, Keene district................Plate 61. Geologic map of the Alstead area, Keene district , New Hampshire........................ 62. Map...locations of mica and feldspar mines of the Grafton district, New Hampshire .................................locations of mica and feldspar mines of the Keene district, New Hampshire.. Figure 38. Index map of New Hampshire...Page Table 5. Power factors of New Hampshire muscovite....., 6. Size distribution and price ranges of |  | | Book | | by Gloucester Typesetting Co. Ltd. Printed in Germany Contents Translator's Foreword 4 Foreword ...known in some parts of the Continent, including Germany. Ore: Ores are deposits of minerals, which contain...prisms with inclined top and bottom faces gypsum muscovite augite triclinic pairs of faces albite anorthite...hardness. Each mineral will scratch those in a lower division on the scale and can be scratched by those...prisms and pyramids. Occurrence: England, Scotland, Germany, Alps, Urals, Brazil, Madagascar. Quartz is important |  | | Journal (article/letter/editorial) | | — Rose colored jaspers have been found in the quartzite ridges near Sylacauga, Talladega Co., Ala. ARIZONA—The..."Gem and Lithium-bearing pegmatites of the Pala district, San Diego County, California" has just been released...silver-gray sillimanite associated with microcline and muscovite, was sent R&M by Mr. Hayes. DELAWARE—Kyanite was...several houses, a general store, and a STONE QUARRY. This quarry is operated by the Morris Stone Company and...produce a high quality of agricultural lime. "The quarry is in the upper members of the Ordovician series |  | | Field Trip Notes | | the chlorite zone is the same as the chlorite-muscovite subfacies of the green schist facies| the biotite...(C3), (EI)-^s and probably under Saratoga Lakeo Lower Ordovician carbonate rocks appear on both sides...though changed in detail and including a thick Lower Cambrian succession beneath (see below description...rocks are limestone and cherty dolomite and contain Lower Ordovician fossils. -.9- Dale (1899) maps a similar...most areas by folds. Where the Upper Cambrian and Lower Ordovician part of the section is exposed, the folds |  | Dekoninck, Augustin, Monié, Patrick, Blockmans, Sabine, Hatert, Frédéric, Rochez, Gaëtan, Yans, Johan (2019) Genesis and 40Ar/39Ar dating of K-Mn oxides from the Stavelot Massif (Ardenne, Belgium): Insights into Oligocene to Pliocene weathering periods in Western Europe. Ore Geology Reviews, 115. 103191 doi:10.1016/j.oregeorev.2019.103191 | Journal (article/letter/editorial) | | rhodochrosite and/or kutnohorite, spessartine, muscovite, chloritoïd, andalusite, hematite) into secondary...the Mn levels close to the roll front within the lower saprolite and the fissured horizon, respectivelly...mine Transinnes quarry Fernie mine and Buderus quarry Fernie mine and Buderus quarry Schrotloch dump...(2000) 16 EB7 hollandite Arlesberg-Elgersburg district 7.19 1.14 Hautmann and Lippolt (2000) 16 ... Ar2d-T hollandite Arlesberg-Elgersburg district 7.12 0.05 Hautmann and Lippolt (2000) 16 WT1-k |  | | Journal (article/letter/editorial) | | the time prior to 1500 m.y. is very unlikely. The lower intersections of the best-fit lines with the concordia...("Plattenquarzit" of the pre-Ordovician "Arzberger Serie" and Lower Ordovician "Frauenbach- Quarzit") crystallized most...neighbouring parts of Poland, East and West Germany (Bavaria), and Austria. It became consolidated by the...of Detrital Zircons TT-F'F1 Penninic Zone and Lower Austrcal.pine Nappes 9 Sample localities 109...magnitude as given by l~aschka (1971), but is much lower than the percentage found by Mielke (1971). Both |  | | Report (issue) | | OF THE INTERIOR GEOLOGY OF THE HANOVER-YORK DISTRICT PENNSYLVANIA GEOLOGICAL SURVEY PROFESSIONAL PAPER...surface of recumbent fold in albite-chlorite-muscovite-quartz schist, 7 miles northwest of Tucquan anticline;...anticline; B, Fold in albite-chlorite-muscovite-quartz schist; C, Muscovite-chlorite-quartzs chist, from Muddy...Muddy Creek Forks; D, Albite-muscovite-chlorite schist, from Fenmore ________________________________________... A, Muscovite-chlorite schist with quartzose lenses; B, Coarse-grained albite-chlorite-muscovite schist; |  | | Journal (issue) | | Lieber Heidelberg, W. Germany Olaf Medenbach Ruhr Universitat Bochum Bochum, W. Germany Eric Offermann Arlesheim...Simmons & F. J. Wicks Calcioferrite from the Moculta quarry, near Angaston, South Australia .................York Mineralogical Club field trip to Penitentiary quarry, Snake Hill, New Jersey, on September 4, 1893 (photo...elevation of 273 m but is now approximately 75 m lower as a result of mining. Maximum relief was approximately...Carolina Slate Belt. Both sequences have been dated as Lower Paleozoic. The dominant rock unit on the mountain |  | | Journal (article/letter/editorial) | | associated with pink microcline, lustrous silvery muscovite, and smoky quartz. It comes from beautiful Glenwood...beautiful specimens have been gathHubbard (Brandywine) quarry in Wilm- ered in the past for jewelry. ington,...specimen ot From this branch, Mr. Wm. J. Kane made quartzite containing three prisms of dra- one of the prettiest...Everyone wants a ring or brooch just like a 20 inch quartzite band which has been mine. I have been informed...massive that this petrified wood was too soft or quartzite. too brittle to work and it had me quite Black |  | | Report (volume) | | ............. Technical description of a slate quarry............................. PART II. SLATE DEPOSITS............ 138 GLOSSARY OF GEOLOGICAL AND SLATE-QUARRY TERMS ....................... 146 INDEX .........slate................................. 20 V. A, Quartzite beds in overturned folds in slate; B, Quartz veins...slate deposits of Montgomery-Polk County slate district, Arkansas................................. 54...54 X. Geologic map of the Placerville slate district, California............ 56 XI. A, Thin section of |  | | Journal (article/letter/editorial) | | the Slabik company quarry at Üdersdorf (5 km south-southwest of Daun), the Stolz quarry at Graulai (1 km...km west of Schalkenmehren), western Eifel area, Germany. Lengauer, C.L. et al. (2001): Mineral. Petrol...Friedrich Karl Biehl (b. 1887), of Osnabrück, Germany, the first mineralogist to do scientific work on...Crystallography at the Free University of Berlin, Germany. Found in a fumarole in the North Breach of the...locality, the Brandholz-Goldkronach mining district, Germany. Found as a product of alteration of stibnite |  | | Report (issue) | | No. 61 GEOLOGY OF THE STONE MOUNTAIN-LITHONIA DISTRICT, GEORGIA By Leo Anthony Herrmann ATLANTA 1 9...No. 61, "Geology of the Stone MountainLithonia District, Georgia". This report was prepared by Dr. Leo...__________ . __________________ _ Location of the District .. _________ ·------------------------- __ _ Physiography...---------------· Garnet-mica schist and muscovite quartzite __ .___ Biotite gneiss ----------------------·-·...----------------------·-· ---------------------··------·- ... Muscovite-quartz schist _____ .. ... -------------· ____ |  | | Journal (article/letter/editorial) | | Formations are faulted down 150 feet against the green Franconia sandstone. Also near Red Wing are many abandoned...about 7th Street (north edge of town); all the lower numbered streets have been mined out. Mine observa...Allied-side steel came. Excellent exposures of Pokegama quartzite, Bawabik Iron Forma- tion (taconite), argillite...i n Cities. Basal con glomerate of the Sioux quartzite VA mile west of where U S 14 leaves the north...cross the river south into town. Many cobbles of quartzite and jasper are in the roadcuts for the pre-1930 |  | | Journal (article/letter/editorial) | | Please Send Them In. calcite from the West End quarry, Inyo Co., Calif., and the other is a bluishwhite...oligoclase, anorthite), quartz, mica (biotite, muscovite) obsidian and gold??? Who would suppose that Colorado...Can anyone supply information on the occurrence? District oí Columbia—On a recent visit to Washington, the...crystals in rock), microline (reddish in pegmatite), muscovite (white flakes in granite), opal (small, white...grayish cephalopod from the world's largest limestone quarry, located in Rogers City, Presque Island Co., Mich |  | | Report (volume) | | .............................. 120 Northfield district ................................................geographic distribution............................. 133 Quarry structure................................................. 169 Technical description of a slate quarry................................... 171 Methods.................. Glossary of geologic and slate-quarry terms............................... Index.......in Phoenix quarry, Windgap, Pa....................... VI. A, Banded slate from Phoenix quarry, Windgap |  | | Journal (issue) | | AND LOUIS' UPPER AND LOWER GRANITE QUARRIES, WITH THAT KNOWN AS THE SWARTHMORE QUARRY. By Henry Clat Bordkn...larite. 5. Garnets. 6. Quartz. 7. Smoky Quartz. 8. Muscovite. 9. Damerite. 10. Apatite. 11. Chalcopyrite. 12...be found. The quarry furthest north and west of the group is known as " Swarthmore Quarry." The rock of...are a fine grained gneiss having large veins of quartzite and feldspar run ning through them regardless...still unknown, but it possessed a large vein of quartzite which is filled more or less entirely with masses |  | | Journal (article/letter/editorial) | | formation 1255 Clough quartzite 1257 Littleton formation 1257 General statement 1257 Lower member of Littleton...Littleton formation 1258 Rusty quartzite member 1258 Middle member of Littleton formation. .. . 1261 General...schist and sillimanite-garnet schist 1261 Impure quartzite 1262 Rocks with retrograde minerals 1262 Upper...Mt. Monadnock syncline 1272 Evidence of rusty quartzite member. . . . 1274 Rest of Littleton formation...1254 England Upland 1252 3. Section of rusty quartzite along brook 1J 3. Rocks and structures in Monadnock |
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