 | | Journal (article/letter/editorial) | | each case the percentages of thoria, total silica, quartz, and of silicate silica. I n no case was silica...of the intimate intergro wth of plagioclase and quartz, known as myrmekite (which has probably been derived...decomposed granite, and is associated with kaolinite, quartz, halloysite, and a pale greenish-yellow mineral...with copper ores at the contact of limestone with quartz-porphyry View Article Online 590 ABSTRACTS...29/10/2014 10:27:00. L. J. 8. Sanidine from the Leilenkopf, Lake Laach. RHEINHARD BRAUNS ( J a h ~ bMiiz |  | | Journal (article/letter/editorial) | | been a particular love. A galena from Neudorf, Germany, for example, gets my heart beating a smidge faster...Artenberg quarry, Steinach, Baden-Württemberg, Germany. Gregor Markl specimen, Jeff Scovil photo. Figure...Brandenberg mine, Todtnau, Baden-Württemberg, Germany. Gregor Markl specimen, Jeff Scovil photo. Figure...Diettersweiler quarry, Freudenstadt, Baden-Württemberg, Germany. Gregor Markl specimen, Jeff Scovil photo. representative...1976). The Eifel area of Germany has produced crystals of aragonite from Leilenkopf and Kunkskopf, the largest |  | | Journal (issue) | | (1979} Bad Ems : Berobau und Mineralien . (1979) Brulde Ge ❑ rg/Fundstellen in der Eifel : Leilenkopf/Brohltal...99-100 Sulphur in pyrite crystal-shaped cavities in quartz . 100-101 Pyrrhutite nodules Erom Texas Golf Coast |  | | Journal (issue) | | Minerals from the Volcanic District of Laacher See, Germany..................................................Lieber Heidelberg, West Germany Olaf Medenbach Bochum-Querenburg, West Germany Eric Offermann Arlesheim...desire is to visit Norway on collecting tours. In Germany there are still more, also with their own jour...from earlier visitors. A “Director of Studies” in Germany has given out, despite Norwegian protests, a guide...an industrial scale. There is a special law for quartz deposits which requires a concession for mining |  | | Report (volume) | | batholith, and 136 m.y. from the Horseshoe Bar quartz-diorite (Item 76, PTS) were allocated to the Jurassic...from any sedimentary rocks. The Guadalupe Mountain quartz-monzonite, biotite age 136 m.y. (Curtis et al....defined stratigraphically than the Horseshoe Bar quartz-diorite, so is perhaps more valuable. The middle...contamination and method (per cent) (per cent) Quartz-dolerite dyke of Hett system, Greengates Quarry...260 747 Omegatron FM 26z 748 mass spec. z.o2 Quartz-dolerite dyke of Hett system, Greengates Quarry |  | | Book | | entry under title: Plateau uplift. l. Geology- Germany (West)- Rbeinisches Schiefergebirge. l. Fuchs,...Springer-Verlag Berlin Heidelberg 1983 Printed in Germany The use of registered names, trademarks, etc. in...chosen a study area within the Federal Republic of Germany. Familiar exposures could now be reexamined with...the Rhenish Massif in the Federal Republic of Germany was the object of a multi-disciplinary re/ search...HertzstraEe 16, D-7500 Karlsruhe 21, Fed. Rep. of Germany * Contribution No. 253, Geophysical Institute |  | | Journal (article/letter/editorial) | | of the Late Quaternary Laacher See Tephra in the Brohl- and Nette-valleys some 2 to 6 km away from Laacher...clasts make up 17 to 54 wt.-~0. Tertiary clays, quartz-pebbles and Quaternary tuff-fragments commonly...deposits that contain up to 19 wt.-V0 phyllites and quartz-phyllites from the regional metamorphic basement...Petrologie der spfitquartiiren Vulkane Herchenberg, Leilenkopf und Dfimpelmaar (n6rdliches Laacher-See-Gebiet)...Late Quaternary eruptive center in the E-Eifel (W-Germany). 1985 (in prep.). BLENWE, R.: Der Laacher See |  | | Journal (article/letter/editorial) | | THE EIFEL VOLCANIC FIELD (FEDERAL REPUBLIC OF GERMANY): CONSTRAINTS ON AGE AND DURATION OF A MIDDLE PLEISTOCENE...Republic (Accepted and HELMUTH Univemity, of Germany) for publication Heidelberg, HRADETZKY D-6900...determinations Eifel volcanic field (Federal Republic of Germany): Constraints on age and duration of a Middle Pleistocene...Rhine and Wetterau areas, Federal Republic of Germany, were dated by sanidines, using the 40Ar/39Ar age...type of correlation were collected in an area in Germany called Wetterau (Fig. 1). In this case the nomenclature |  | | Book | | Rocks of the Laacher See and Other Areas of West Germany ............... 5.13 Leucite-Bearing Rocks of the...197 17.2 Tectonics in the East Eifel Area ofW. Germany ... 198 17.3 Plate Tectonic Model for the Generation...Analcite Kalsilite Albite Anorthite Plagioclase Quartz Tridymite Orthoclase Potash feldspar Diopside Clinopyroxene...Manchuria (China; Ogura et al. 1939), E. Eifel (West Germany; Duda and Schminke 1978), Birunga (east and equatorial...Wyoming Navajo-Hopi, Arizona East Eifel, West Germany Vico, Italy Si0 2 Number of analyses Locality |  | | Journal (article/letter/editorial) | | of the pelitic assemblage chlorite + muscovite + quartz, and to estimate the change in environment from...generalized terminal reaction is chlorite + muscovite + quartz = andalusite + biotite + cordierite + H2O. Calcic...characterized by the assemblage epidote + muscovite + quartz + chlorite + actinolite + biotite + calcite + plagioclase...plagioclase at low grades and by epidote + muscovite + quartz + garnet + hornblende + biotite + calcite + plagioclase...interbedded dolomite, micaceous limestone, and quartz-rich argillite. The Beck Spring Dolomite overlies |  | | Journal (issue) | | Silverton). Rockho1111d,Apnl 1978. REAM,L. R.: Smoky Quartz Crystals at Rock Corral (Central Utah). Rockhound...1978. MtTCHELL,J. R.: The Owlhead Mountains, Smoky Quartz. Lapidary Journal, Mai 1978. RATKEVICH, R.: Fishing...Lapidary Journal, Juni 1978. M0RRJS0N,L. M.: A Quartz Crystal Hunt in Arkansas. Lapidary Journal, Juli...zentralen und nördlichen Laacher Vulkangebietes. B Brohl, K Keil, M Mendig, N Nickenich, N1 Nicderzissen;...Herchenberg, 3 Steinbergskopf,4 Kahlenberg, 5 Leilenkopf, 6 Fornicher Kopf, 7 Lummerfeld und Kunkskopf |  | | Journal (issue) | | Kurz & Fündig Eifel-Spezialitäten (Aragonit/Leilenkopf) und interessante Basaltmineralien aus dem Westerwald...Ost-Nepal auf. Hari Prasad Timsina (,,Himalaya Quartz Ftv. Ltd."/Kathmandu) hatte diesmal wesentlich...Namib Lead Mine erwähnt werden, den Thomas Krassmann/Bad Windsheim für die Sonderschau zur Verfügung gestellt...the Königshain granites,northemBohemianMassif,Germany.-IntJoum. Earth Sciences 88, 236-252. HAAI...deutsche Fundstellen seien genannt: • Lahngebiet (Bad Ems/Braubach), • Siebengebirge (Grube Clemenslust |  | | Journal (article/letter/editorial) | | By Frank Rutley, Esq., F.G.S. 3. ~:Enclosures of Quartz in Lava of Stromboli, etc., and the Changes in...Author describes the existence of enclosures of quartz in a lava-stream at the Punta Petrazza on the east...rocks upon the enclosures, concluding that the quartz has undergone fluxion but not fusion, and has supplied...other rocks or minerals once associated with the quartz have been assimilated by the magma. 1 This paper...Eolian Sand at ordinary atmospheric temperature into Quartz, Quartzite, and other stones.' By James Parkinson |
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