 | | Journal (article/letter/editorial) | | crystalline rocks of the Upper Harz Mountains, Germany By ALBRECHT BAUMANN, BORW1N GRAUERT, Miinster,...metasedimentary rocks of about 1 . 6 G a or older. The lower intercept indicates a possible metamorphic event...Mountains. Emplacement of the intrusions of the Harzburg gabbronorite and the Brocken and Oker granites...the Ecker gneiss block, now squeezed in between Harzburg gabbronorite and Brocken granite, was connected...cristallines de l'Oberharz par les m6thodes de I'U-Pb sur zircon et sphhne et du Rb-Sr sur roches totales et sur |  | | Book | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland OberhĂ€nsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede âą Laurence N. Warr The Geology of Germany A Process-Oriented Approach 123 Martin Meschede...and Geology University of Greifswald Greifswald, Germany Laurence N. Warr Institute of Geography and Geology...Geology University of Greifswald Greifswald, Germany ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional |  | | Journal (article/letter/editorial) | | wollastonite, 649; lithian tourmaline, 747 Newhurst quarry, Shepshed, Leicestershire, vesigni6ite, 533 Cornwall...* Confluence of Carneal Water and Clenoe Water Germany (Deutschland) Bramburg, G6ttingen, tacharanite...Breitenbrunn ( ~ Breitenhof), Saxony, helvine, 627 Schwarzenberg, Saxony, belvine, 627 ~gi~ (~l~jquO...glauconite, 753 SCOTLAND France Auchinstarry quarry, Kil~yth, Stirlingshire, julgoldite, 761 Blackcraig... 59 Portsoy, Banffshire, migmatites, 66r Ratho quarry, Edinburgh, julgoldite, 761 Champagnac, Cantal |  | | Book (edition) | | dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Scbwarzwald Mts., in the Sailauf quarry, Spessart Mts., Bavaria. both Germany, and from the Rabejac deposit... = = = = = Acanthite, x 16 mm, Freiberg, Germany, H Abernathyite, 12 mm, Ririera/, France, H Abhurite...at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical areas acanthite may occur...byssolite. Mono- coast of North America: Kobuk River Valley, Alaska, clinic, C2/m, a,b,c = 9.89, 18.20, 5.31 |  | | Book | | look for. Michael OâDonoghue Proustite (East Germany) 7 Rocks We can define a rock as a large mineral...Darker and even poorer in silica than diorite is gabbro, containing a calcium-rich plagioclase and pyroxene...Granite Nepheline syenite Syenite Dio rite Gabbro Peridotite 13 Dunite Serpentinite Rhyolite...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either |  | | Book | | Orthorhombic] |The Tetragonal Tricl cassiterite zircon | scheelite vesuvianite wulfenite System The...results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...between that of the sample and that of the next lower grade. In this case we consider the hardness to...Different scratch hardness on kyanite 20 somewhere lower grade adding a half-grade to it. Although the determination...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual |  | | Book (edition) | | 134 143 THE TRACHYTE AND ANDESITE FAMILY THE GABBRO FAMILY . 152 156 170 . THE GREENSTONE FAMILY...The plutonic rocks-granite, syenite, diorite and gabbro - occur frequently in bosses . Laccolite.- A dome-shaped...many igneous areas (e.g. , in the English Lake District and in North Wales) . Dykes and Veins. - A dyke...sometimes form marked features in the scenery of a district ; for, being more capable of resisting the disintegrating...beautiful scenery of North Wales and of the Lake District owes its origin to the great development of volcanic | | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned jn such a way that they form...that of the next lower grade. In this case we consider the hardness to be of the lower grade adding a half-grade...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...identification. Nobody should be discouraged by initial bad luck, it is sometimes difficult even for an expert...should preferably be more detailed, e.g. walls of a quarry, or refuse heap specimen, so that one could find |  | | Journal (article/letter/editorial) | | of the Frankenstein gabbro (Odenwald, SWGermany) evidenced by4~ and single-zircon 2~176 measurements By...saxothuringischen Zone der Varisciden. An Mineralien aus Gabbro-Gesteinen dieses Komplexes wurden 87Sr/86Sr-Anfangswerte(Pyroxen)...(Zirkon) bestimmt. Das 87Sr/86Sr-Anfangsverh:,iimisdes Gabbro weist Nit 0.70380 auf Mantelherkunft hin. Die K-At-Alter...and cooling of mafic plutonic rocks. R~sum~ Le gabbro de Frankenstein, situ~ dans la pattie nord de l'Odenwald...saxothuringienue de la cha~ne hercynienne. Les min&aux de ce gabbro ont fait l'objet des mesures suivantes: rapport |  | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...manganese oxide on limestone, Solnhofen, Bavaria, Germany * 11.5 x 24 x 0.5 om MINERALS: PRODUCTS OF A...crystallize in the tetragonal system are cassiterite, zircon, chalcopyrite, wulfenite and rutile. Pressing...such as Porcupine and Hemlo districts; Noranda district, Quebec. USA: Mother Lode belt and others in...Localities Canada: Cobalt mining district and Thunder Bay District, Ontario. USA: several localities |  | | Journal (article/letter/editorial) | | occurs also, albeit in smaller amounts, within lower continental crust, oceanic crust, upper mantle and...syenogranite â alkali feldspar granite Anorthosite â gabbro â diorite Monzogabbro â monzodiorite â monzonite...Fe-Ti oxides Ilmenite â ulvöspinel â magnetite Zircon â thorite â elpidite â allanite â chevkinite Silicates...Province Comendite, San Pietro Island, Italy Midland Valley, Scotland Oslo Rift, Norway Pantellerite, Pantelleria...gneisses, Galicia, Spain Rheinisches Schiefergebirge, Germany British Tertiary Igneous Province 440â425 Ma 280â235 |  | | Journal (article/letter/editorial) | | 2013, Vol. 452, No. 4, pp. 419â423. GEOLOGY Zircon Geochronology of Mantle Ultramafics from the Klyuchevskoi...by concentrically zoned duniteâclinopyroxeniteâgabbro (âplatinumbearingâ) and ophiolitic massifs with...with intensely serpentinized rocks of the duniteâharzburg ite complex being the most widespread. Direct...[1, 3â5, 7â11, 14]. The wellknown Klyuchevskoi gabbroâultramafic massif is the most representative ophiolitic...top downward): duniteâwehrliteâ clinopyroxeniteâgabbro (layered part of the ophiolite section) and duniteâharzburgite |  | | Book | | Binding: LĂŒderitz & Bauer, Berlin. Printed in Germany. Dedicated to my former teacher and friend Professor...Grigoriev (U.S.S.R) Prof. Dr. F.K. Drescher-Kaden (Germany) Mr. D. Minatidis (Canada) Dr. E. Mposkos (Athens)... Dr. Thesis, University of Frankfurt am Main, Germany. Fig. 551, by Wager and Deer from Theoretical Petrology...orientated in hornblende-blasts. In addition to apatite, zircon may occur as an accessory phase in eclogites. Figs...crystalloblastesis. Apatite crystalloblastesis. Zircon crystalloblastesis (after the spessartite crystalloblastesis) |  | Stephenson, D., Bevins, R. E., Millward, D., Highton, A. J., Parsons, I., Stone, P., Wadsworth, W. J. (1999) Chapter 4: Lake District and northern England. In Caledonian Igneous Rocks of Great Britain (Geological Conservation Review Series - Geological Conservation Review No. 17. Joint Nature Conservation Committee, Peterborough. p.135-216. | Book (chapter) | | British BG5 Geological ,835 Survey Chapter 4 Lake District and northern England Introduction INTRODUCTION...INTRODUCTION D. Miliward In Ordovician times the Lake District and northern England formed part of the microcontinent...intense igneous activity occurred in the Lake District. Firstly, during the Ordovician (LlandeiloâAshgill)...culminated in the emplacement of much of the Lake District granitic batholith (Hughes et al., 1996). Secondly...additional granitic plutons were emplaced in the Lake District and northern England subsequent to the closure |  | | Journal (article/letter/editorial) | | ophiolites as a genetic asso ciation of peridotites, gabbro, dolerites, and basalts. The Penrose Conference...Usteya, Pyshma, and Asbest duniteâcli nopyroxeniteâgabbro complex; and accompanying the Mariinsk, Yazâva...duniteâwehrliteâclinopy roxeniteâgabbro, Serov duniteâharzburgite, and Asbest duniteâharzburgiteâgabbro complexes in order...1998 the Usteya duniteâwehrliteâclinopyroxeniteâgabbro com plex along the eponymous river near Krasnoturâinsk...pyroxeni tes, and olivine and pyroxeneâamphibole gabbro con ditionally attributed to the Late Ordovician |  | | Book (edition) | | Unisilicates Chrysolite Group Garnet Group Zircon Group 281 Vesuvianite, Epidote, etc Axinite ...scale to soapstone at the other. There is a still lower limit in liquids and gases; but of the hardness...the planes of the trisoctahedron in Fig. 21. The lower one of the three on the upper front solid angle...by a constant ratio, and the expression for the lower right one of the six planes will be 3c f & la. By...planes will remain essentially the same. In Fig. 10, bad the plane lettered | been made the plane 1, then |  | | Book (edition) | | Fluoride Group The Iron-Ore Group The Spinel Group The Zircon Group The Titanic Acid Group The Carbonate Group...Family The Diorite Family --- The Alkali-Gabbro Family The Gabbro Family II. THE HYPABYSSAL ROCKS The...it ; the granite-massifs of the Christiania district are laccoliths rather than bathyliths in Suess'...originated Thus Lawson l has described in the district of Canada vast areas of rocks habit which, according...sometimes form marked features in the scenery of a district for, being more capable of resisting the disintegrating |  | | Book (edition) | | The The The The Iron - Ore Group Spinel Group Zircon Group Titanic Acid Group Carbonate Group - 129...183 The Diorite Family The Alkali-Gabbro Family - 188 The Gabbro Family 201 186 II. THE HYPABYSSAL...maintains that the granite-massifs of the Christiania district are laccoliths rather than bathyliths in Suess'...Thus Lawson 1I has described in the Rainy Lake district of Canada vast areas of rocks of plutonic babit...sometimes form marked features in the scenery of a district ; for, being more capable of resisting the disintegrating |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...culture, derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric...minerals are concerned. Opal is still thought to bring bad luck, and similar stories are told about certain...of these fourfold axes in all. The considerably lower symmetry of a monoclinic crystal is shown in Fig...crystallographic symmetry of a body may often be lower than its apparent geometric symmetry. In a pyrite |  | | Book | | minerals are the raw materials of the landscape. Every valley, hill and mountain peak is made entirely of rocks...just 20km/12 miles beneath Californiaâs Central Valley, it is substances like zinc and lead that join...so great that the iron simply cannot melt. The lower mantle is 6702,900km/420-1,800 miles down. Here...the underside of the crust, creating rocks like gabbro. Some oozes up into vertical cracks created by...drop away down these 'faults' to open up a rift valley, flanked by mountains formed from blocks that didn't |  | | Catalog/List | | ALLEMONTITE An intergrowth of arsenic and antimony Germany Harz Mountains, Andreasberg Rich gray botryoidal...marble ..... . Connecticut Canaan, New England Lime quarry Silky white xl prisms in dolomitic marble .......material ........... Arizona Cochise Co. , Swisshelm district Rich brown to gray massive, some with minor cerussite...aluminum silicate Calilornia Placer County, Grass Valley Hornblende Norite Broad white crystal sections...chloro-phosphate :\'ew Hampshire Grafton Center, Ruggles quarry Olive green masses in pegmatite ....... Fl. APOPHYLLITE |  | | Book | | INTRODUCTION TO Robert Laut, Ph.D. 4880 Lower Valley Road, Atglen, Pennsylvania 19310 Dedication... Published by Schiffer Publishing Ltd. 4880 Lower Valley Road Atglen, PA 19310 Phone: (610) 593-1777;............................................. 30 Germany .................................................in several countries, including: AVR in Julich, Germany; Peach Bottom and Fort St. Vrain in the US; Dragon...uranium mines in Western Europe remained closed. In Germany about 200 tU were recovered from mine rehabilitation |  | | Journal (article/letter/editorial) | | concordant U-Pb ages for spherical âmetamorphicâ zircon cluster around ⌠340 Ma. Arguments for the more...extrusion of the orogenic lower crust. Keywords: high-pressure granulites, PâT path, zircon dating, protolith...Moldanubian Zone of southern Bohemia, Moravia and Lower Austria, 2 â Saxonian Massif, 3 â MĂŒnchberg Massif...described from the Saxonian Granulite Massif in Germany, its type locality, in 1803 by Weiss as Weisstein...leucogranulite and c â hyperpotassic granulite, PleĆĄovice quarry, BlanskĂœ les Massif. lites with similar lithology |  | | Book | | minerals. For example, most granites have magnetite, zircon, apatite, ilmenite, titanite, and many others....names like granogabbro (granite-gabbro), monzogabbro (monzonite-gabbro), rhyodacite (rhyolite-dacite)...[Vulcan, Roman god of fire], plutonite (Pluto and the lower world), and Peleâs hair (Hawaiian fire goddess)...tribal peoples: bojite (Boii, Celtic tribe in Germany), gondite (Gonds, central India), onkilonite (Onkilones...sthene) are the essential constituents; differs from gabbro by the presence of the Definition proposed prthopyroxene |  | | Book (volume) | | reserved. H., Hofbuchdruckerei, Cothen-Anhalt (Germany). PRECIOUS The Precious Stones. Precious others...like will the is light quartz from the lower jour setting, a are at on quartz all much...it cut aâc). number are front, material; zircon MINERALS. necessary natural also, colours;... or viewed from a) below, b) of portion lower is colour made or be in the in cut of at...cutting may simply cut so stones form while the lower frequently most diamonds of cutting frequently |
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Gabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany