 | | Journal (article/letter/editorial) | | the formation of cavities. Late precipitation of pyrite, chabazite-Ca and graphite suggests that low temperatures...formation de cavités. Une précipitation tardive de pyrite, chabazite-Ca et graphite montre que de faibles...veins of Hiddenite resemble the “Alpine clefts” of Austria, and thus proposed that the veins at Hiddenite...Piedmont region are metamorphosed to middle- and upper-amphibolitefacies assemblages and range from 500...folded and fractured, and have been metamorphosed to upper-amphibolite-facies assemblages. Quartz – oligoclase |  | | Journal (article/letter/editorial) | | Novosedly Šebanov lda 20 km Český Krumlov Austria Mo N ath oli th České Budějovice Fig. 1...co-ordinates is given in Tab. 1. 3.1. Pacova hora quarry near Chýnov The Moldanubian Zone is a heterogeneous...and the Mesoproterozoic Dobra gneiss in Lower Austria (Gebauer and Friedl 1994; Friedl et al. 2004)....diopside (Figs 4–5). Relations of rock types in the quarry were characterized by Orlov (1931), geology of...broader area by Suk et al. (1977), mineralogy in the quarry and nearby caves by Litochleb et al. (1997, 2004) |  | | Journal (issue) | | Bastnas Mines, Riddarhyttan Ore Field, Bergslagen District, Vastmanland, Sweden ........... 187 by L. Ohman...Pierre-Nicolas Schwab Orleans , France The Trimouns Quarry, Luzenac, Ariege, France ........................RECORD COVER: (center) ALLANITE(Ce) crystal, 6 mm; (upper right) PARISITE-(Ce) crystal, 5.5 mm; (lower left)...IIMORIITE-(Y) crystal, 2 mm-All from the Trimouns talc quarry near Luzenac, France (see the article beginning...BASTDAS ffiIDES RIDDARHYTTAD ORE FIELD, BERGSLAGED DISTRICT, VASTffiADLADD, SillEDED Lennart Ohman Hi:igviltsvagen |  | | Journal (article/letter/editorial) | | Geology of Kirchberg am Wechsel and Molz Valley Areas (Semmering Window), Lower Austria With 1 plate, 18...Long. 15° 56' and 16° 0 1 ' East, in the Lower Austria (NiederÖsterreich). It is bounded to the north...work is carried out at the Geological Survey of Austria and at the Petrographic Institute of the University...the s-planes), zircon and apatite (detritals), pyrite, siderite and calcite. Po r p h y r ob 1 a s t...valley (No). Laboratory of the Geological Survey of Austria, 1966. B = Wechsel schist, Molz valley (No), after |  | | Journal (issue) | | Mineral & Gem Show 26 The Minerals of Vale Road Quarry Nottinghamshire D.I. Green,J.C. Spencer 28 For...Reserves are estimated ~t 18 million tonnes. The quarry can only be worked for 6 months of the year, due...personal observations. LOCATION TOULOUSE Timouns quarry can be reached from the route nationale number...Lordat. There is a good private road to Trimouns quarry which is at an altitude of 1800m on the side of...last visit some of the Moroccan employees at the quarry were selling minerals from their homeland to French |  | | Journal (article/letter/editorial) | | sedimentary–migmatite) mafic–ultramafic; = sedimentary; Meta of = metamorphic; sedimentary–migmatite) and and...thermal reducled to albitization, the formation pyrite (FeSbrines 2), and and Be-bearing ◦ C Cr-rich formation...with shale led to albitization, theare formation pyrite 2 ), and Be-bearing mineralization the formation...emerald mine, Ambalahosy Nord Commune, Mananjary District, Vatovavy Fitovinany Black-wall reaction zones...9.4 Irondro mine, Andonabe Commune, Mananjary District, Vatovavy Fitovinany Black-wall reaction zones |  | | Journal (article/letter/editorial) | | The Trimouns Quarry Luzenac, Ariège, France Freddy Marty Rue de l’Hôpital 11230-Chalabre France In recent...recent decades, the Trimouns quarry has become well known as a source of outstanding crystals of several...reference to the three peaks that overlook the quarry. Langue d’Oc is a regional language of Latin The...Littéraires et Industrielles de l’Ariège. In 1905 the quarry was acquired by the Société des Talcs de Luzenac...producer of talc at 1.3 million tonnes per year. The quarry employed some 100 workers at the beginning of the |  | | Journal (article/letter/editorial) | | batholith north of the economically-renown Skellefte district. Four different molybdenite samples from outcrop...(Björntjärn) and Munka Mo–(W) deposits in the Rappen district are represented by three outcrop and five drill...Sweden; Nevoria, Western Australia; Alpeinerscharte, Austria; Erzgebirge, Germany; Sardinia–Corsica Batholith)...gneissic rock essentially defines the local and district metallogenic suite. In the absence of focusing...locally during dehydration melting of gneisses at the upper amphibolite facies, where melt generation dominates |  | | Journal (article/letter/editorial) | | particular, the paper of Professor E. F. Stumpfl (Austria) was devoted to a comparative description of the...of various sulfides ( chalcopyrite, pyrrhotite, pyrite, sphalerite, and molybdenite) and also an increased...monomineralic scheelite zone, 1 m thick, and in the upper part, there are lens-like segrega tions up to 10...pyroxene, graph ite, feldspar, biotite, quartz, pyrite, chalcopyrite, pyrrhotite, bismuthinite, magnetite...of Orsdalen, Southern Norway (33). 1 - Hiadal migmatite series; 2 - granitized gneisses; 3 - Orsdal charnockite |  | | Journal (article/letter/editorial) | | metavolcanic rocks, and higher-grade gneiss and migmatite. Two major deformation events characterize the...related to the Famatinian cycle occur in the Ambul district and also east of the Pampa del Tamboreo area (Fig...from Sierra del Morro district (near La Toma) in the south to Agua de Ramón district in the north (Fig....tungsten districts. In the Sierra de Altautina district coticules are closely associated with calc-silicate...muscovite, quartz, apatite, rutile and weathered pyrite (limonite). In thin section (Fig. 2b), tourmaline |  | | Journal (issue) | | creeks of the South Platte River, opening the Alma district in 1861. Engraving by Paul Frenzeny and Jules...Geology Geology of the Sweet Home mine and Alma district......................... 101 by Dean Misantoni...are rummaging through the halls of the Executive Inn during the Tucson Show looking for that elusive bargain...Alma mining district on the eastern slope of central Colorado’s M osquito Range. The district, near the...Mount Bross, 4.5 miles west of Alma. The Alma district opened in 1861 when prospectors, in one of the |  | | Book (edition) | | anoctahedral sphalerite crystal and on a cubic pyrite crystal. various other properties. For example...Likewise, the striation on the cube faces of a pyrite crystal makes it possible to assign it to a lower...tristetrahedron DIPLOIDAL 2/m3 C-3A2.4A3-3P tetrahedron pyrite hauerite skutterudite diploid pentagonal dodecahedron...Z-axis which shows how, in the passage from the upper form to the lower, the silicon atoms are more symmetrically... I Example of pseudomorphism: limonite after pyrite (Brazil) transformations are possible in the laboratory |  | Thompson, Woodrow B., Bearss, Gene T., Falster, Alexander U., Simmons, William B., Nizamoff, Jams W. (2000) The Estes Quarry, Cumberland County, Maine: A New Pegmatite Mineral Locality. Rocks & Minerals, 75 (6) 408-418 doi:10.1080/00357520009605667 | Journal (article/letter/editorial) | | A New Pegmatite M ineral Locality T he Estes quarry in southwestern Maine exposes a granite pegmatite...mineralized pegmatites in Maine and New Hampshire. The quarry has yielded fine specimens of eosphorite, fairfieldite...and vivianite. Locrtlon and Hlstory The Estes quarry is located on Route 5 in West Baldwin, Cumberland...Contractors of West Baldwin. This is a working quarry with high rock walls and unstable boulder piles...for permission. Prior to the opening of the Estes quarry, a gravel pit was being worked at the base of the |  | | Journal (article/letter/editorial) | | subsequent granitic magma emplacement into the middle to upper crustal levels. Simultaneously, large-scale shear...It is usually subdivided into the lower crustal/upper mantle Gföhl Unit with numerous occurrences of HP–HT...(Moravo–Moldanubian) branches joining in the Waldviertel area (Austria). The eastern branch forms a NNE–SSW trending domal...extends from Český Brod E of Prague to Linz in Austria. On a regional scale, it belongs to a set of conjugate...(Moldanubian) rocks and primary magmas derived from an upper mantle source (Košler et al. 2001; Vrána and Janoušek |  | | Book | | possible, I wish to express my sincere thanks. I am also very grateful to the numerous persons who replied...which the rock was initially found are: bentonite (Upper Cretaceous, Benton shale), cherokite (Mississippian...Practical petrographic classifica6 tion of limestones. Am. Assoc. Petroleum Geologists Bull. 43; 1-38. Folk...1904. On the classification of sedimentary rocks. Am. Geologist 33:228-247. Grout, Frank E, ed. 1927....Abbreviations of Languages Used in Name Derivations Afrik. Am. Ind. Arab. Celt. Corn. Dan. Du. E. Pruss. Ecuad |  | | Journal (article/letter/editorial) | | from the Austroalpine 0tztal basement ( Tirol, Austria): geochemistry and Sm-Nd vs. Rb--Sr isotope systematics...Universitat Innsbruck, Innrain 52, A-6020 lnnsbruck, Austria b J'nstitutflir Geologie, Universitilt Wien, Geozentrum...Geozentrum, Althanstrafle 14, A-1010 Vienna, Austria Received 6 September 1994; accepted after revision...polymetamorphic complex (OSC) in the Tyrolian Alps (western Austria-northern Italy) is part of the Austroalpine nappe...suggested for the formation of the Winnebach migmatite in the ten- 200 C Miller, M. Th0ni / Chemical |  | | Report (issue) | | S. Geological Survey personnel of the various district offices. Each precipitation sample represents...Recent data and results a symposium in Vienna, Austria, May 3-10, 1961: Tritium in the Phys. and Biol...thrust sheet consists of upper Precambrian schist, gneiss, amphibolite, migmatite, and granitic rock formed...Precambrian granitic rocks and migmatite and a thick sequence of upper Precambrian sedimentary and volcanic...Thrust fault Strike-slip fault Plllllil Teeth on upper plate , Arrows show direction of rslative movement |  | | Journal (article/letter/editorial) | | University of Graz, Universitätsplatz 2, 8010 Graz, Austria Present address: Geoscience Center, Georg-August-University...5020 Salzburg, Austria 4 Department of Hard Rock Geology, Geological Survey of Austria, Neulinggasse 38...Vienna, Austria 5 NAWI Graz Geocenter, University of Graz, Heinrichstraße 26, 8010 Graz, Austria e-mail:...∼35 km subsequently followed by the ITD to the upper/middle crustal level (∼15 km depth). The P–T evolution...strong, late-Variscan, LP–HT metamorphism. Rare migmatite varieties hosting garnets record detailed information |  | | Journal (issue) | | characterization of an unknown metamict phase from Tuften quarry, Larvik area, S Norway…………………………………………………………………………………………………………...number of data points. (*) For pegmatites: UB = upper border, LB = lower border, I = intermediate zone...showing increasing distance from samples to the upper contact with schist. Hollow blocks = spodumene crystals...the deeper crust is pulled out from beneath the upper crust. Shortening alone does not lead to exhumation...Syenite Complex with the Stettin complex on the upper left. The total thickness of the pegmatite is about |  | | Report (issue) | | minerals _associated with gold in veins are quartz and pyrite. Some other common minerals associated with gold...percert; Bi 34.935.5 percent. Aurostibite AuS~. Cubic, pyrite tYf<:'\. Au 43.5-50.9 percent. Krennerite AuTe2...1001,000 South Africa: Transvaal, Rustenburg district __ <.5 Stannite, CusFeSnS, England, Cornwall...Merensky Horizon on Schildpadnest, Rustenburg district. Content of other elements: Cu, Co about 0.1 percent;..._____ 1 1()..-100 .5 South Africa, Rustenburg district, Transvaal --------------------- 1.0 Pestarena |  | | Book | | Swarm – Upper Carboniferous (Namurian). Mirotice and Staré Sedlo Orthogneisses – Middle-Upper Devonian...cover. Čertovo břemeno Melagranite intrudes the Upper Devonian strata and the Blatná Granodiorite intrudes...zone of the Central Bohemian Pluton exposed at quarry for aggregate, Slapy dam (Czechoslovakia). – Engng...PALIVCOVÁ, M. (1999): Recrystallized members of Upper Proterozoic ultramafic magmatism in the Variscan...377–401. VLAŠÍMSKÝ, P. (1982): The Příbram ore District: rock geochemistry and potential sources of hydrothermal |  | | Journal (article/letter/editorial) | | ultramafic rocks; Group B, bands or lenses within migmatite gneissic terrains; Group C, bands or lenses within...spectrographic analyses of pyrox2. Eclogite, Occidental quarry 490 3. Eclogite, Tiburon Peninsula 491 ene-bearing...information dictates that the material forming the upper mantle must consist of very dense minerals. The...that eclogite could satisfy the requirements for upper mantle material has received continuing support...pyroxene) at pressures and temperatures expected in the upper mantle of the earth (Kennedy, 1959; Yoder and Tilley |  | | Journal (article/letter/editorial) | | migmatites are mostly rather unclear due to the thick Upper Cretaceous shallow-sea and Quaternary aeolian sedimentary...Cretaceous Basin. It crops out only in a dimension stone quarry and in a series of minor erosion windows north...unusual occurrence of Ti-rich amphibole–pyroxene migmatite enclosing a number of small peridotite and pyroxenite...type Loc. type KMV44 Poličany KHC eclogite quarry KMV66 Bořetice KHC eclogite KMV95 Bořetice...amphibolite Qtz–Cpx KMV30b Úhrov KHC-BU eclogite quarry Grt–Omp– Qtz–Rt KMV103 Spačice-Doubrava KHC-BU |  | | Report (volume) | | Geology and Ore Deposits of the Freeland-Lamartine District, Clear Creek County, Colorado GEOLOGICAL SURVEY... Geology and Ore Deposits of the Freeland-Lamartine District, Clear Creek County, Colorado By J. E. HARRISON...____________________ 73 Production from the district.___________________________________ Classification...Geologic map and section of the Freeland-Lamartine district. Vertical projection along the Lamartine-Great...showing the location of the FreelandLamartine district with reference to the Front Range highland and |  | | Report (issue) | | in Ordovician rocks....... 50 Greenschist to upper amphibolite facies in other Paleozoic(?) rocks.............................. 199 Anori placer district.......................... 203 Other placer districts...and zinc................................... 208 Pyrite..................................................Chemical analysis of the schistose part of a migmatite from the Rio San Bartolome.......... 62 6. ...i sni ranj\ii\j\ from lowermost groenschisl to upper amphibolite facies. A Jurassic diorite pluton |
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