 | | Journal (article/letter/editorial) | | is attributed to S-type granites made up of high-K and to I-type granitoids. During their comprehensive...Sb-Au veins in the Brandholz-Goldkronach Mining District prevalently are oriented N-S, NNE-SSW, NE-SW and...(Wemmer and Ahrendt, 1993). The age supports the K/Ar cooling age of 312.5 ± 2.5 Ma when muscovite passed...footwall rocks of the marble beds like in the Arzberg Fe ore deposit (Fig. 3b) (Von Horstig and Teuscher...Holenbrunn, Stemmas and Arzberg representative of the marginal facies have minerals lower in S contents (arsenopyrite: |  | Siebel, W., Raschka, H., Irber, W., Kreuzer, H., Lenz, K.-L., Hohndorf, A., Wendt, I. (1997) Early Palaeozoic Acid Magmatism in the Saxothuringian Belt: New Insights from a Geochemical and Isotopic Study of Orthogneisses and Metavolcanic Rocks from the Fichtelgebirge, SE Germany. Journal of Petrology, 38 (2) 203-230 doi:10.1093/petroj/38.2.203 | Journal (article/letter/editorial) | | W. SIEBEL1∗, H. RASCHKA2, W. IRBER1, H. KREUZER3, K.-L. LENZ4, A. HÖHNDORF2 AND I. WENDT1 1 GEOFORSCHUNGSZENTRUM...volcanic successions during the Late Ordovician. K–Ar ages of the investigated KEY WORDS: Fichtelgebirge;...a mainly Cambrian age and introduced the term ‘Arzberg Series’ for these strata. In agreement with von...and Raschka (1967), Stein (1988) interpreted the Arzberg Series as a postCadomian, Early Palaeozoic unit...Stettner (1972, 1988, 1993), however, divided the Arzberg Series into an underlying Precambrian Variegated |  | | Journal (article/letter/editorial) | | metastably MA formed at this stage or somewhat lower pressures. The U-Th-Pb dating of monazite with the...result of collisional events in Middle Devonian to Lower Carboniferous times (e.g., Dallmeyer et al., 1995;...2008) and eclogite (Massonne and Kopp, 2005). The Arzberg Series of the FC could be AC C correlated with...represent lithological PT equivalents of the lower Palaeozoic succession of autochthonous domains (Mingram...metamorphic grade exposed in the northern FC. The Arzberg Series in schist) characterized by the assemblage |  | | Journal (article/letter/editorial) | | Tertiary emplacement of the Idaho batholith. Rb/Sr and K./Ar isotopic studies of the batholith suggestnearly...) rather than chargebalance.The sum of Ca * Na * K in scapoliteaverages3.93 + 0.06 (2o), differing by...mineral assemblages are given in Mora (1988). In lower-gradesamples,scapolite occurs as large, subhedral...Davidson, 1970;Serdyuchenko, 1975;Rich, 1979;Behr and Horn, 1982;Vanko and Bishop, 1982;Roedder, 1984a).Additionally...biotite with only minor chlorite, muscovite, and K-feldspar may indicate metamorphism of evaporitic argillites(Moine |  | | Journal (article/letter/editorial) | | antiperthitic), hypersthene, clinopyroxene, garnet, alkali feldspar (perthite and mesoperthite), opaque mineral (ilmenite)...as chondrodite. Quartz, plagioclase and alkali feldspar occur in variable amounts. In addition, accessory...calcic plagioclase, nearly pure albite An2 and K-feldspar (Table 2); (4) scapolite; and (5) titanite. Rare...graphite, quartz, plagioclase, alkali feldspars (K-feldspar and albite), wollastonite, hedenbergite, andradite...in grain size) containing mainly plagioclase, K-feldspar, quartz, strongly altered mafic minerals (chiefly |  | | Journal (article/letter/editorial) | | composition clearly indicates Mg-rich clay fractions. K content is high while Na is low, except in a few halite-bearing...part of the metamorphic column, owing to high Mg, K and F contents. Such rocks are, for instance, well...Pollard (1973), these illites show high K contents and high K/AI ratios (analysis i, Table 1 ; X.R.D....to approximate its composition, which is again a K-rich variety with seemingly high Mg content and Mg/Fe...disturbance, which may be avoided by using AI-(Na + K) instead of A1. Such a diagram, however, would be |  | | Journal (article/letter/editorial) | | and chlorine-rich scapolites, sulfides, alkalic feldspar, and sometimes gypsum and anhydrite in calc-silicates...a s s o c i a t i o n s s u c h as g r a y w a c k e - - a n d e s i t e - - s h a l e and red beds-...1981). It has been dated at 950--1100 Ma by isotopic K--At (Fries et al., 1962; Fries and Rincdn-Orta, 1965)...glo ACRUZ~<.<.+, @MEXICO PUEBLA o VER °"e" .,K,, _e. ~ --16° 18°-- -IACAPULCO+ 0 i + I00 i...are the most developed crystals besides quartz, feldspar and biotite/phlogopite mica. The former 5 minerals |  | | Book | | (KOKOTSKO) STOCK ……………………………………………………………... 76 1.22. LOWER VLTAVA COMPOSITE MASSIF …………………………………………………… 77...Activity. In: Dallmeyer, R. D. – Franke, W. – Weber, K. Eds: Pre-Permian Geology of Central and Eastern Europe...activity. In: Dallmeyer, R. D. – Franke, W. – Weber, K. Eds: Pre-Permian Geology of Central and Eastern Europe...Ca-rich and K-poor acid granitoids (biotite granodiorite to trondhjemite) HK group – high-K calc-alkaline...to melagranitic rocks KMgG group – more acid high-K, high-Mg granites closely related to UK LG group – |  | | Book | | Related Areas (1994) R.D. DALLMEYER, W. FRANKE, and K. WEBER {Eds.}: Pre-Permian Geology of Central and...Eastern Europe (1995) R.D. Dallmeyer W. Franke K. Weber (Eds.) Pre-Permian Geology of Central and...sität Senckenbergstrasse 3 35390 Giessen Germany K. WEBER Institut für Geologie und Dynamik der Lithosphäre...Heidelberg ; New York ; Barcelona ; Budapest ; Hong K o n g ; London ; Milan Paris ; Tokyo : Springer, 1995...DALLMEYER W. FRANKE K. WEBER Contents I Introduction R.D. DALLMEYER, W. FRANKE, and K. WEBER. . . . |  | | Journal (article/letter/editorial) | | material (graphite d2±1, Pesquera and Velasco 1988). K-feldspar, Al-rich titanite (7±11% Al2O3), ¯uorite, and...layering, i.e., alternation of very thin white mica-, feldspar-, and pyrite-rich laminae with tourmaline-rich...written as XY3Z6(BO3)3T6O18W4, for which X = Na, Ca, K, vacancies; Y = Mg, Fe2+, Fe3+, Li, Al, Mn, Ti4+,...schorl end-member. The X-site cation totals (Na+Ca+K) range from 0.55 to 0.83 compared with the ideal value...tourmalinite. Note tourmaline-rich shear band in lower part of photograph and arcuate tourmaline-bearing |  | | Book | | heldatBled/Yugoslavia 3-7, 1977, held at Leoben/ Austria 5-10,1981, held at Berchtesgaden/Bavaria, FRG ...Mostler The Succession of Ore Mineralization of the Lower Austroalpine Innsbruck Quartzphyllite (With 2 Figures)...Mineralisation of the "Paleozoic of Graz" (Styria, Austria) (With 3 Figures). . . . . . . . . . . . . . ....Pennian and Scythian Series of the Eastern Alps, Austria, and Its Petrogenetic Significance (With 1 Figure)...there were four independent states in this area: Austria and Bavaria and the small church states of Salzburg |  | | Journal (article/letter/editorial) | | transition follows, starting with mica schists of the Lower Palaeozoic Saxothuringieum as characterized by the...of biotite-sillimanite-gneisses with garnet of K feldspar into the high-grade gneisses and migmatites of...nubicvma as typified by cordierite-sillimanite-K feldspar parageneses. Hence the age of this metamorphism...chlorite-phengitic white mica, that represent a lower facies than that of the neighbouring mica sdfists...KOSSMATS (199.7) bzw. zum S a x o t h u r i n g i k u m (v. GAE~TNEa 1951) sind die im Norden verbreiteten |  | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns).... . . . . . . . . . . . . . . . . . . . . . . Feldspar . . . . . . . . . . . . . . . . . . . . . . ....and mineralogy of feldspar . . . . . . . . . . . . . . . . 39.2. Magmatic feldspar deposits . . . . ...Structure-bound feldspar deposits . . . . . . . . . . . . . . . . . . 39.4. Sedimentary feldspar deposits ...5. Metamorphic feldspar deposits . . . . . . . . . . . . . . . . . . . . 39.6. Feldspar supply and use | | | Journal (article/letter/editorial) | | combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns).... . . . . . . . . . . . . . . . . . . . . . . Feldspar . . . . . . . . . . . . . . . . . . . . . . ....and mineralogy of feldspar . . . . . . . . . . . . . . . . 39.2. Magmatic feldspar deposits . . . . ...Structure-bound feldspar deposits . . . . . . . . . . . . . . . . . . 39.4. Sedimentary feldspar deposits ...5. Metamorphic feldspar deposits . . . . . . . . . . . . . . . . . . . . 39.6. Feldspar supply and use |  | | Journal (article/letter/editorial) | | DRILLING PROGRAMME HARALD G. DILL Geological Survey of Lower Saxony, Continental Deep Drilling Programme of the... and U mineralisation (type III} followed when Lower Carboniferous granites were intruded into that terrain...and Pb-Zn vein-type deposits occur throughout the Lower Permian to Liassic (type IV). They are related to...stratigraphic record from the Cambrian through the Lower Carboniferous and is pronounced particularly in...Horni Luby/CSSR: HgS; 21. Kraslice-Klingenthal district (Tisova deposit)/CSSRGDR: FeS2-FeTSs-CuFeS2-PbS-ZnS; |  | | Journal (article/letter/editorial) | | from the wet chemical determination in that much lower values are recorded [n(H20) = 0.33-0.38]. The H20...dumortierite, have been normalised to 15 cations. K and Na are excluded and assigned to the A-site. Negligible...the early M4 event. Late M 4 fluids probably have lower Xco2 as indicated by the hydrous signature of the...garnet-rim and chlorite (Grambling, 1990) are somewhat lower and in the range 400--470 ~ at 4 kbar. Type III...28 5 Si Ti A 1 TM A 1 v! F e 3§ F e 2§ Mg Ca Na K B H 2.939 0.079 0.061 6.357 0.031 0.414 0.000 0.000 |  | | Book | | Karl-Franzens-Universitat HeinrichstraBe 26 A-8010Graz Austria ISBN-13 :978-3-642-84642-7 DOl: 10.1007/978-3-642-84640-3...stretching 1500 km between Vienna and Graz in Austria and Genova in Italy. They resulted from the collision...F. Bussy, J. DESMONS, U. EGGENBERGER, F. FINGER, K. GRAF, CH. MARRO, I. MERCOLLI, R. OBERHANSLI, A. PLOQUIN...LOESCHKE, H. HEINISCH The Pre-Alpine Basement of the Lower Austro-Alpine Nappes in the Bernina Massif (Grisons...Salzburg, Hellbrunner Str. 34 A-5Ol0 Salzburg, Austria FLISCH,M. Bruckfeldstr. 23 CH-3000 Bern, Switzerland |  | Seifert, Wolfgang, Rhede, Dieter, Förster, Hans-Jürgen, Naumann, Rudolf, Thomas, Rainer, Ulrych, Jaromir (2014) Macrocrystic corundum and Fe–Ti oxide minerals entrained in alkali basalts from the Eger (Ohře) Rift: Mg−Fe3+-rich ilmenite as tracer of an oxidized upper mantle. Mineralogy and Petrology, 108 (5) 645-662 doi:10.1007/s00710-014-0324-8 | Journal (article/letter/editorial) | | by the towns of Marktredwitz, Mitterteich, and Arzberg (north-eastern Bavaria, Germany). This volcanic...abbreviations used in compilation Table 1: alkali feldspar (afs), anhydrite (anh), anorthite (an), barite...chlorite (chl), graphite (gr), ilmenite (ilm), K-feldspar (kfs), magnetite (mgt), monazite-(Ce) (mnz),...in grain CS-c6 containing a subhedral Barich K-feldspar (6.7 wt% BaO), corresponding to 14 mol% celsian...5), Mn (0.1–0.2), Mg (0.1–0.5), Na (0.1–1.0), and K (0–0.2). The Fe-rich Timinerals among the alteration |  | | Journal (article/letter/editorial) | | units are distinguished: (i) the Veleta nappe (lower); and (ii) the Mulhacén nappe (upper) (Puga et...intercalations of calc-schist, micaschist and quartz –feldspar gneiss. Locally, the basement and cover sequences...in gneisses, accompanied by feldspar porphyroclasts and quartz– feldspar lenses that are wrapped by mylonitic...metasediments. (B) Mylonitic gneiss with quartz – feldspar layers (light) and tourmaline porphyropclasts...layers, in a section normal to the foliation. Feldspar and quartz lenses with tourmaline porphyroclasts |  | | Book | | METAMORPHIC ROCKS Series Developments in Petrology 1. K. R. Mehnert MIGMATITES AND THE 2. V. Marmo GRANITE...composition of the crust . Relationship between zo k and differentiation in metamorphism : Changes in type...DUDÁK wea. * sw sa k ot dh: Hens ay te ved pnts See, Pon : jh+ 4 M ar “= re k INTRODUCTION After...A 4 % ff ' | La , k f i + ] : hs 9F ; \ | 4 i ~ + : k > » n , i ‘ i ~~ a? m...ké 4 3 * v" ™ = : ' ¥ É : 2260 > „= k fm sabe JE da sty i Fi aT „o Son prom prom |  | | Journal (article/letter/editorial) | | to highly vacanced X-site, Al-rich schorl with lower F (up to 0.43 apfu), which is interpreted as an...tourmaline, feldspar, mica, and 20 nA for garnet; a beam diameter of 5 µm for tourmaline, feldspar and mica...rhodonite; Ti – Ti-hornblende; Cr – chromite; Na – albite; K – orthoclase; P – apatite; F – topaz; Cl, V – vanadinite;...(Hawthorne and Henry 1999), where X = Na, Ca, , K; Y = Mg, Fe2+, Al, Fe3+, Li, Mn, Ti4+, Cr3+, Zn, V3+;... 2.40 1.99 2.34 1.60 2.41 1.95 1.55 2.13 K 2O 0.04 0.04 0.03 0.08 0.00 0.07 0.04 0.00 |  | | Book | | Oberthur, Dr. H.-0. Angermeier, and Dipl.-Min. U. K. Vetter, all BGR Hannover. We would also like to thank................ 62 3 .2.8.1 Letneye, Dombarovsk District ....................................................... 62 3.2.8.2 Komsomolskoye, Mednogorsk District ...................................... 64 3.2.8.................... 65 3.2.8.6 Bakr-Tau, Baimak District, Bashkirian Republic ....................... 66.................... 75 3.3.2 Ungban, Bergslagen District, Sweden...................................... |  | | Book | | "i "* ~~* O ^c 11 ω 1 ^ 1 / >v ^* w ^ \< K-> 0 Z —- 1Λ1 c/D 10km o ÖJO CU Τ3 4-> u cC...skari ~* r + +j//+V+\ Henderson^*/-\ El Teniente K\ ^ΐ&^" 4km tourmaline f breccia pipes Chile Fig...copper deposits are not found, they are made". Donald K. Mustard, 1976. "The economic geology of the (S.E...despite certain naïve utterances to the contrary". K. F. G. Hosking (paraphrasing Sir Winston Churchill)...The present is a "prime time" of exposure of the lower Tertiary and late Mesozoic high-level (epizonal) |  | | Book | | Canada ELSEVIER, Amsterdam - Oxford - New Y o r k - T o k y o 1985 ELSEVIER SCIENCE PUBLISHERS B.V. Sara...PUBLISHING COMPANY INC. 52, Vanderbilt Avenue New Y o r k , N.Y. 10017, U.S.A. ISBN ISBN ISBN ISBN 044442530-6..."Porphyry copper deposits are made". 1976. Donald K. Mustard, are not found, originally, been they...despite certain naive utterances to the contrary". K. F. G. Hosking (paraphrasing Sir Winston Churchill)...The present is a "prime time" of exposure of the lower Tertiary and late Mesozoic high-level (epizonal) |  | | Report (volume) | | 441-443: Occurrences of kornerupine sensu stricto (K) and prismatine (P) Chapter 9. Table 17, pp. 461-462:...formation The system Ca-Mg-B-Si-O-H-Cl-S The system K-Na-B-Si-O-H-F-N Other chemical systems Heat-capacity...exploration guide Geochronology Involving Tourmaline K-Ar and ^Ar/S^Ar systematics Rb-Sr geochronology Sm-Nd...High-spatial-resolution EELS Interpretation of the B K ELNES Molecular Orbital (MO) approach Multiple scattering...Rosenberg, Werner Schreyer, Denis M. Shaw, Charles K. Shearer, Virginia B. Sisson, John F. Slack, Michael |
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