 | | Journal (article/letter/editorial) | | Laacher See basin. (3) Diameters of both lithic and pumice clasts reach their maxima in outcrops close to...Likewise, the source area for parts of the T a u p o Pumice, erupted a b o u t 186 A. D. (WILSON et al., 1980)...= Laacher See Tephra. H = Herchenberg, WB = Wingertsberg, TL = Thfirer lava flow, N M L = Niedermendig...A. G. Werner and a neptunist, did not think the pumice of the Laacher See area to be volcanic in origin...tephra layers. They also postulated some of the pumice to have been erupted from scoria cones to the east |  | | 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...Seven representative whole rock samples (i.e. bulk pumice clasts), four matrix separates, and fifteen mineral...Only small quartz xenocrysts may be less easy to distinguish. However, inclusions of minor quartz should |  | 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) | | ........................................... 58 Pumice and scoria ......................................Pennsylvanian and Cretaceous shales and building blocks of pumice and scoria from Quaternary volcanoes. A cement...wallboard, plaster, pumice, block, brick, and tile made from local limestone, gypsum, pumice, scoria, and clay...FE COUNTIES 9 to the discovery of gold-bearing quartz veins in the Ortiz Mountains in 1833 and of the...gold-silver mines of the Cochiti district, pumice is quarried for use in pumice blocks. Its cumulative value now |  | | Journal (issue) | | Head nort heast on un· paved roads 10 a bandoned pumice quarry on north side or old Brooks..scanlon road...BEND AIR·FALL PUMICE This abandoned quarry exposes a 7·m·thick section of Bend Pumice of Taylor ( 198...well-developed basal layer that contains coarse pumice clasts. Lava Island Tuff of Taylor ( 1981) liC5...ight ahead (north) on 14th NW St. Figure J. Btnd Pumice ol-eriain by Tumalo Tuff al SlOP 8. OREGON GEOLOGY...up the gulch. Reworked pumice lapilli, ash, and obsidian of basal Bend Pumice are well exposed along |  | | 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 (issue) | | Potassium-argon ages of pumice cobbles from conglomerate unit of the Friant Pumice Member of the Turlock...separation. Mineralogically the they all contain quartz, sanidine, oligoclase, biotite, allanite, zircon...Mexico, and as far north as southern Idaho. Plinian pumice deposits are 3-4 m thick in the source region....generated that now forms a pervasive, air-fall pumice unit at the base of the Bishop. During an immediately...properties of these ashes with the basal air-fall pumice unit of the Bishop Tuff. In addition, Izet and |  | | Report (volume) | | 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...Mountain volcanic field are similar: they contain quartz, sanidine, oligoclase, biotite, allanite, zircon...and as far north as southern Idaho. An air-fall pumice layer at the base of the Bishop Tuff is uniformly...amounts of trace elements in the earliest airfall pumice at the Abstract base of the Bishop Tuff and |  | | Report (chapter) | | focused on their petrochemical features, ranging from quartz-andesites to alkali feldspar rhyolites, belonging...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...from basaltic andesites to andesites and dacites. Quartz-rich xenoliths are white-coloured, angular-shaped |  | | Report (issue) | | -1:;3 Quartz crystal ( electronic grade), by Lauren A. Wright __ __ 459 Quartzite and quartz, by William...of different kinds of n1inerals likr feldspar, quartz, a11d 111ira, -n·hich are £on1Jd in granite. Both...rhyolite-f!rauite class. , . . olcanie gla<.:ses, pumice, aud perlite are in this class. The more basic...in five groups. Tertiary limestone Eocene coal, quartz sanrl Tertiary volcanic rocks ( l;uilding stone...BeH-Graf':s '\'a1ley-Xe,·ada City-.-\J. leghnny gohl-quartz rlistr i<·t Foothill copper-zinc hPlt and northern |  | | Book | | DIRECTOR See erweiwE POR |S —$<$_____ MINES AND QUARRIES IQO2 PREPARED UNDER THE SUPERVISION CHIEF...1.—Character of inquiries concerning mines and quarries: 1850 to 1902 ...........--..----------.--2-----Table...included in Census reports concerning mines and quarries: 1850 to 1902........--.---.-.--.---Maplers—=Mlininostatistics...aes Table 13.—Productive and unproductive mines, quarries, and wells: 1902.......-..---------------------+------Table...quantity and value of such materials obtained from quarries included under other GlASsiti Caton sal OO 2Re |  | 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...intracaldera tuff has a phenocryst assemblage of quartz and feld spar similar to that of the Franz Valley |  | | 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 |  | | Report (issue) | | the batholith_____.--___-___-----_______ Diorite, quartz diorite, and hornblende gabbro __ _ _ _ Altered... Layered gabbro in the Tungsten Hills __ _ _ _ Quartz diorite and related granodiorite _______ Granitic...-____ Essential minerals._____________________ Quartz.____-__--_-_-___-__________ Potassium feldspar...Granodiorite of McMurry Meadows. ______ Wheeler Crest quartz monzonite._________ Round Valley Peak granodiorite-_________...Granodiorite of Deep Canyon.___________ Tungsten Hills quartz monzonite _________ Albite granite facies____._-_-________ |  | | Book | | covered half the island with a thick layer of ash and pumice fragments, but luckily nobody was visiting the...located in the small and rather bleak island of Jan Mayen. Beerenberg has been active five times since 1633...The lucky birthday boy was Kaiser Wilhelm II of Germany, who received it from his generous grandmother...water as was discussed in our “tour,” from Jan Mayen at the north to Bouvet Island near Antarctica. Like...lighter in color than basalts and contain mostly quartz and feldspar (Fig. 2.8). 24 The basic facts about |  | | Book (volume) | | Geological Society of London. Porphyry; Pumice; Pyroxenite; Quartzite; Quartz-Porphyry. J. S. R. James Smith...Pyrargyrite; Pyrolusite; Pyromorphite; Pyrrhotite; Quartz; Realgar. Lecturer in Greek at Birmingham Norman...flowers. POMERANIA (German, Pommern), a territory of Germany and a maritime province of Prussia, bounded on...Oder. Pomerania is one of the flattest parts of Germany, although east of the Oder it is traversed by a...lampreys are s6nt from Pomerania to other parts of Germany. With the exception of the almost inexhaustible |
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