 | | Report (issue) | | Diffraction Pattern: In den Dellen quarries, Eifel Mts., Rhineland-Palatinate, Germany. 2.92 (100), 2.72 (50), 3...102.44 (1) In den Dellen quarries, Eifel Mts., Rhineland-Palatinate, Germany; average electron microprobe...a void in a sanidinite xenolith in pumice. Association: Sanidine, ‘biotite’, magnetite, nosean, clinopyroxene...Dellen pumice quarries, Niedermendig, Mendig, Laach Lake volcanic complex, Eifel Mountains, Rhineland-Palatinate...Rhineland-Palatinate, Germany [TL]. At the Mochalin Log deposit, Chelyabinsk Oblast, South Urals, Russia. Name: The |  | Kolitsch, Uwe, Mills, Stuart J., Miyawaki, Ritsuro, Blass, Günter (2012) Ferriallanite-(La), a new member of the epidote supergroup from the Eifel, Germany. European Journal of Mineralogy, 24 (4) 741-747 doi:10.1127/0935-1221/2012/0024-2210 | Journal (article/letter/editorial) | | member of the epidote supergroup from the Eifel, Germany UWE KOLITSCH1,2,*, STUART J. MILLS3, RITSURO MIYAWAKI4... Japan 5 Merzbachstrasse 6, 52249 Eschweiler, Germany Abstract: The new mineral ferriallanite-(La) (IMA...Dellen pumice quarries, Niedermendig, Mendig, Laach Lake volcanic complex, Eifel Mountains, Rhineland-Palatinate...Rhineland-Palatinate, Germany. Ferriallanite-(La) is associated with sanidine, minor ‘‘biotite’’, magnetite, nosean...crystal structure, Eifel, Germany. 1. Introduction In den Dellen quarries, turned out to be the La-analogue |  | | Journal (article/letter/editorial) | | of the Laacher See magma chamber (Eifel, West Germany) G. WOrner 1.2, H. Staudigel ~,3 and A. Zindler...the Quaternary East Eifel volcanic field (West Germany) represents an inverted, chemically zoned magma...freshly cut, nearly continuous exposures in pumice quarries, within a few kilometers south of the Laacher...(i.e. bulk pumice clasts), four matrix separates, and fifteen mineral separates (sanidine, plagioclase...and removed during handpicking of crushed bulk pumice samples. Thin section observations show such small |  | | Report (issue) | | (40 AAz./ vs 40K/3bAr) measured in samples of sanidine, plagioclase, biotite, and glass separated from...Potassium-argon ages of pumice cobbles from conglomerate unit of the Friant Pumice Member of the Turlock... Mineralogically the they all contain quartz, sanidine, oligoclase, biotite, allanite, zircon, apatite...Mexico, and as far north as southern Idaho. Plinian pumice deposits are 3-4 m thick in the source region....the Bishop Tuff were made. The weighted mean of sanidine, plagioclase, and biotite ages from the lower |  | | Report (volume) | | (4°Ar/ 36Ar vs 40K/ 36Ar) measured in samples of sanidine, plagioclase, biotite, and glass 23 7. Diagram...of tephra units at: 9. The Cowan Pumice mine 26 10. Abandoned pumice mine near Benton Hot Springs, Calif...Tuff 11 7. Potassium-argon ages of pumice cobbles from the Friant Pumice Member 15 8. Some large-scale silicic...volcanic field are similar: they contain quartz, sanidine, oligoclase, biotite, allanite, zircon, titanomagnetite...and as far north as southern Idaho. An air-fall pumice layer at the base of the Bishop Tuff is uniformly |  | Self, Stephen, Heiken, G., Sykes, M. L., Wohletz, K., Fisher, R. V., Dethier, D. P. (1996) Field excursions to the Jemez Mountains, New Mexico. Bulletin 134. New Mexico Bureau of Geology and Mineral Resources doi:10.58799/b-134 | Report (issue) | | complex. 20 Stop 3 Upper Bandelier Tuff (Guaje) pumice-fall deposit and Bandelier ignimbrites 22 Stop...Bandelier Tuff surge deposits and Cerro Toledo pumice-fall deposits 25 Stop 5 Proximal upper Bandelier...ignimbrite 34 Stop 11 Main section of El Cajete pumice deposits and Banco Bonito lava flow 35 Stop 12...Bandelier Tuff and upper Bandelier Tuff with basal pumice-rich flow units, Ancho Canyon 52 Stop 23 Frijoles...V16—Profile through the Puye ignimbrite and associated pumice and ash falls showing changes in median grain size |  | | Report (issue) | | ......................91 Stratigraphic logs of pumice-fall deposit of unit rfp at Highway 203 roadcut...drained steeply by Reds and Boundary Creeks, and the Pumice Butte area is drained more circuitously by Crater... 119°0' 119°' Mono Lake 120 Granite Mountain Pumice Valley Mono Craters chain De xt Grant Lake ...oth re Cone Peak al mm ver ui n Ri Joaq n a Pumice Butte in Bas kes La Ma Lion Point in rhc ...volcanic rocks of Devils Postpile, Red Cones, and Pumice Butte. Benioff and Gutenberg (1939) investigated |  | | Book | | editors Corrado Cimarelli, München, Germany Sebastian Müller, Mainz, Germany More information about this...distinguished researchers from Greece, Switzerland, Germany, and Italy to provide a compilation of all different...ETH-Zurich, Switzerland) born 1940 in Berlin (Germany) with studies in: Technical University Berlin,...(Greece) as scientific coordinator. In Switzerland and Germany he joined geological hazard and risk related pilot...neighbouring island Yali are covered with voluminous pumice deposits, which are mined on a large scale. The | | | Book | | editors Corrado Cimarelli, München, Germany Sebastian Müller, Mainz, Germany More information about this...distinguished researchers from Greece, Switzerland, Germany, and Italy to provide a compilation of all different...ETH-Zurich, Switzerland) born 1940 in Berlin (Germany) with studies in: Technical University Berlin,...(Greece) as scientific coordinator. In Switzerland and Germany he joined geological hazard and risk related pilot...neighbouring island Yali are covered with voluminous pumice deposits, which are mined on a large scale. The |  | | Report (chapter) | | RHY, rhyolitic; PHO, phonolitic. Mineralogy: kf, sanidine; plg, plagioclase; cpx, clinopyroxene; opx, orthopyroxene;...strat. range lithostratigraphic units frr2 frr1 pumice cone and coulee Eruptive Epoch 9 (northeastern...Obsidian-rich pumiceous pyroclastic-breccias. Rhyolites. pumice Epoch 9c cone volcanic quiescence M. Pilato sa...of obsidianaceous lava flows (sa1). Rhyolites. pumice cone and coulee Forgia Vecchia fv2 Forgia Vecchia...(mafic enclaves-F. delle Rocche Rosse Formation) sanidine (rhyolites) Oxides Ti-magnetite Amphibole |  | Sweetkind, Donald S., Rytuba, James J., Langenheim, Victoria E., Fleck, Robert J. (2011) Geology and geochemistry of volcanic centers within the eastern half of the Sonoma volcanic field, northern San Francisco Bay region, California. Geosphere, 7. 629-657 doi:10.1130/ges00625.1 | Journal (article/letter/editorial) | | comparison of phenocryst assemblage and mineralogy, pumice and lithic Santa Rosa " 6 kf sC e re R...obvious lithic inclusions, but individual fiamme or pumice were not sampled or analyzed. All whole-rock samples...glass from tephra layers, which include ash fall, pumice fall, ash flow, and water-reworked tuff deposits...single cooling unit com prised of both lithic- and pumice- (up to 30 cm) rich, nonwelded to partially welded...in all irradiations was Taylor Creek Rhyolite sanidine, 85G003, with an age of 27.92 Ma as reported by |  | | Report (issue) | | flows.-__ Bishop tuff -__-_---_--------------Basal pumice layer _______________ Principal tuff member.___...inversely graded layers of pumice resulting from dumping two batches of pumice into a beaker partly full...Presumably the microcline was derived from original sanidine during thermal metamorphism. The quartz, both...crystal fragments, except for the conversion of sanidine to microcline and the breakdown of quartz to mosaics...secondary. Euhedral quartz and microcline (originally sanidine) and small dark lithic fragments are visible in |  | | Report (issue) | | rhyolite-f!rauite class. , . . olcanie gla<.:ses, pumice, aud perlite are in this class. The more basic...distriet Group IV Cascade Range and -:\lodoc PJ ateau Pumice and perlite deposits Freshwater clia to mite of...layer Lower Cedarville l\IJNERAL DEPOSIT Perlite Pumice 16 B t.,LLETIX 176-~lD-"ER.ll. ( 41 3-orther...rock Quickill'"er :--onoma ,·olca.nics Perlite, pumice. ,tone building - Quaternary ..,cream gravel...made from n1etals or mineral raw materials. Sand, pumice, and pumicite are the pri11cipal abrasives produced |
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