 | | Journal (article/letter/editorial) | | of Germany Laboratorium fuÈr Geochronologie, UniversitaÈt Heidelberg, Federal Republic of Germany With...postdated by the intrusion of the Frankenstein gabbro complex in the NW Odenwald at about 362 Ma. Thus...However, for the central and southern Odenwald zircon data revealed a thermal peak of regional metamorphism... mainly using the 40Ar/39Ar technique. The two gabbro amphibole separates yielded ages of 335 and 329...they are about 30 Ma younger than the Frankenstein gabbro. The total argon ages of the amphibolite hornblendes |  | | 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 |  | | Journal (article/letter/editorial) | | thermobarometry of granitoids from the Central Odenwald (Germany) and their implications for the geotectonic development... Institut fuÈr Mineralogie, TU Darmstadt, Federal Republic of Germany Geologisch-PalaÈontologisches Institut... UniversitaÈt Heidelberg, Federal Republic of Germany 2 With 6 Figures Received July 14, 1999; revised...(1991). 235 207 U/ Pb- and 238 U/206 Pb-dating of zircon from metasedimentary rocks of the central (336-337...Zone. Good examples are exposed at the Seemann quarry in HochstaÈdten or come from the boundary region |  | | Journal (article/letter/editorial) | | Stein Institut fuÈr Mineralogie, TU Darmstadt, Federal Republic of Germany With 8 Figures Received July 12...405 3 Ma (Pb-Pb single zircon evaporation) and 410 10 Ma (U-Pb single zircon), respectively for the...differentiation. Kreher (1994) distinguished three different gabbro types with a random spatial distribution. Her geochemical...same magma source. 87 Sr/86 Sr initials of the gabbro of 0.70380 0.00012 (Kirsch et al., 1986) unequivocally...5 kbar and 880±930 C for the intrusion of the gabbro. Two-pyroxene thermometry gave similar crystallization |  | | Journal (article/letter/editorial) | | DYKE INTRUSIVE IN ARDNAMURCHAN, SCOTLAND. THE GABBRO OP By Professor K. Busz, Ph.D., of Minister. AST...consists to a great extent of rocks belonging to the gabbro family. On the road leading from the little village...opposite the Isle of Mull, on the north coast, a small quarry has been opened for road-metal, •which shows an...which the mioroscopic examination proved to be a gabbro. This is, therefore, a similar occurrence to that...Skye and Kum. I will now describe, firstly, the gabbro and try to explain its alterations due to the intrusion |  | | Journal (article/letter/editorial) | | metamorphic gneiss from the SW BergstraÈsser Odenwald/Germany H.-J. Leyk, M. Goll, and H. J. Lippolt Laboratory...Ruprecht-Karls University, Heidelberg, Federal Republic of Germany With 2 Figures Received August 27, 1999; revised...postdated by the intrusion of the Frankenstein gabbro at about 360 Ma (Kreuzer and Harre, 1975; Kirsch...ages of 342 to 332 Ma have been determined (U-Pb zircon dates, Todt et al., 1995). A hornblende and biotite...and include iron hydroxide, rutile, apatite and zircon as accessory phases. Only Wa3 contains altered |  | | Journal (article/letter/editorial) | | size reaches up to 300 µm. The significance of zircon as a perfect mineral container was confirmed by...MICRO-INCLUSIONS AND BULK-ROCK MAGNETISM OF OCEANIC GABBRO Ageeva, O.1,2, Pilipenko, O.3, Markov, G.3, Pertsev...present mineralogical and magnetic data of 11 oceanic gabbro samples dredged from the Mid-Atlantic ridge at...microstructural Fe-Ti-oxide types, two groups of gabbro are distinguished: The first group has both cumulus/intercumulus...MECHANISMS IN TERRESTRIAL SEDIMENTS OF NUSSLOCH (GERMANY) Brazier, J.-M.1,2, Schmitt, A.-D.2, Gangloff, |  | | Journal (article/letter/editorial) | | peak of metamorphism in the Variscan Odenwald, Germany Received: 1 October 1994 Accepted: 21 May 1995...Max-Planck-Institut fiir Chemie, Postfach 3060, D-55020 Mainz, Germany U. Altenberger Institut fiir Geowissenschaften...Gutenberg Universi@t, Postfach 3980, D-55099 Mainz, Germany J.F. von Raumer Institut de Min4ralogie et P4trographie...the zircons of both areas. Variscan granitoids • Zircon geochronology • Odenwald • Pressure-temperature...333 Ma (hbl) and 329 Ma (biot) for unit III. The gabbro complex (Frankenstein complex) in the northern |  | | Journal (article/letter/editorial) | | high grade metamorphic rocks of the Odenwald (SW Germany) provide data for the construction of PT-paths...Ruhr-Universitfit, Postfach 102 148, D-4630 Bochum, FR Germany and A. K~OHE, Institut ftir Geologie , Ruhr-Universitfit...Ruhr-Universitfit, Postfach 102 148, D-4630 Bochum, FR Germany. Manuscript received: 31. 5. 1990; accepted: 22...pluton and the granodioritic intrusion east of Darmstadt yielded a mean of 363 Ma (KrRSCH et al. 1988)...Silurian age (LIPPOLT, 1986). A discordant U/Pb zircon age of 380 Ma is interpreted as an early metamorphic |  | Altenberger, U., Oberhänsli, R., Stein, E., Moghni, M. (2001) Geochemistry, tectonic setting and geodynamic significance of late orogenic dikes in the Melibocus Massif, Bergsträsser Odenwald. Mineralogy and Petrology, 72 (1) 209-228 doi:10.1007/s007100170034 | Journal (article/letter/editorial) | | Republic of Germany Institut f ur Mineralogie, TU Darmstadt, Federal Republic of Germany 3 Institut f...Geowissenschaften, Universitat Mainz, Federal Republic of Germany 2 With 11 Figures Received August 31, 1999; revised...than the Frankenstein gabbro, situated to the north. The intrusion age of the gabbro is about 3627 (Kirsch...Fig. 2. Thin section photomicrographs. A Micro-gabbro dike (malchite) with hornblende and partly altered...and Tertiary rift-related magmatism of southwest Germany is excluded. Nevertheless, the Melibocus tonalite |  | | Journal (article/letter/editorial) | | Institut, UniversitaÈt WuÈrzburg, Federal Republic of Germany Department de Mineralogie, Universite de Geneve...graphite schist. Adjacent magmatic rocks range from gabbro-dioritic to granitic in composition (Klemm, 1919;...late staurolite. Accessories are green spinel, zircon, monazite, rutile, tourmaline and apatite. The...(1992, 1994) has been dated by concordant U-Pb zircon ages at around 336 Ma (Todt et al., 1995). Kreuzer...Seeheim due to the early-Variscan Frankenstein gabbro intrusion at 362 7 Ma (Kirsch et al., 1988), |  | | Journal (article/letter/editorial) | | Granodioritgneise (Am Wannenberg, Am Steinkopf) und der Gabbro (Bei Vierst6ck) stammen. Nachweis altpal~iozoischerPrim~iralter...sind auch die Ansichten iiber die Gabbros bzw. Gabbro-Amphibolite. RAMDOHR(1923) machte deutlich, daf~...Entstehungsarten zu unterscheiden sind und dab der Olivin-Gabbro jiinger als die metamorphen B611steiner Granite...CHATT~RJE (1960) h~ilt es fiir m6glich, dai~ die Gabbro-Amphibolit-Serie ~ilter ist als die Granodioritgneise...denen zum Zeitpunkt der Probenenmahme lediglich der Gabbro-Steinbruch beim Gasthaus Vierst6ck (Probe OBOA3-Hb) |  | NAKAMURA, KENTARO, MORISHITA, TOMOAKI, CHANG, QING, NEO, NATSUKI, KUMAGAI, HIDENORI (2007) Discovery of lanthanide tetrad effect in an oceanic plagiogranite from an Ocean Core Complex at the Central Indian Ridge 25.DEG.S. GEOCHEMICAL JOURNAL, 41 (2) 135-140 doi:10.2343/geochemj.41.135 | Journal (article/letter/editorial) | | amphibole with accessory minerals of epidote, titanite, zircon, apatite, and allanite. The chondrite-normalized...OCCs where the lower part of the oceanic crust (gabbro~ultramafics) is tectonically exposed at the seafloor...plagiogranite generally intruded into uppermost part of the gabbro sequence (e.g., Gillis and Fig. 1. Index maps...during the YK05-16 Cruise. In the dive, peridotite, gabbro, dolerite, and basalt were also sampled along with...(Aldiss, 1981). Trace amounts of epidote, titanite, zircon, apatite, and allanite are also observed in the |  | | Journal (article/letter/editorial) | | in the Hoher-Bogen shear zone (Bohemian Massif, Germany) Received: 23 March 1999 / Accepted: 25 August...massif C. Bues Celtesstr. 14, D-85051 Ingolstadt, Germany G. Zulauf ()) Institut für Geologie und Mineralogie...Erlangen-Nürnberg, Schlossgarten 5, D-91054 Erlangen, Germany e-mail: zulauf@geol.uni-erlangen.de Tel.: +49-91...very low to high grade (Vejnar 1982). Cambrian gabbro, diorite, trondhjemite, and granite intrusions...carried out at the Technische Universität Darmstadt (Germany) using a Cameca SX-50 electron microprobe | | | Journal (article/letter/editorial) | | in the Hoher-Bogen shear zone (Bohemian Massif, Germany) Received: 23 March 1999 / Accepted: 25 August...massif C. Bues Celtesstr. 14, D-85051 Ingolstadt, Germany G. Zulauf ()) Institut für Geologie und Mineralogie...Erlangen-Nürnberg, Schlossgarten 5, D-91054 Erlangen, Germany e-mail: zulauf@geol.uni-erlangen.de Tel.: +49-91...very low to high grade (Vejnar 1982). Cambrian gabbro, diorite, trondhjemite, and granite intrusions...carried out at the Technische Universität Darmstadt (Germany) using a Cameca SX-50 electron microprobe |  | | Book (edition) | | Mineralogie, Geologic und PalKontologie, Stuttgart, Germany. Quar. Jour. Soc, or Q. Geol. J. G. S. —...geologischen Gesell- Germany. Zeitschrift fiir Krystallographie, Munich, Germany. A HOOK IIAXI)...collectively called the ferro-magnesian silicates. Zircon and titanite conclude the tant in igneous rocks... practically limited to basic igneous rocks. Zircon and titanite are interesting microscopic accessories... most a general that the earliest ihnenite, zircon and titanite. Next come the the pyroxenes and |  | | Journal (article/letter/editorial) | | by Verlag Gustav Feller-Nottuln, Kettwig/Ruhr, Germany. Pp. 37*iv*25 plates. (Publication No. 5 oI Opuscula...Freunde der Mineralogie und Geologie; Rossdorf bei Darmstadt. 55 pages,1954. This paper-bound pamphlet, a collection...and mineralogy of the western Ilarz Mountains, Germany, each paper by a difierent author, was issued in...Friends of Mineralogy and Geology of Rossdorf near Darmstadt at Clausthal-Zellerfeld in the Harz Mountains...features described are the rocks of the Harzburg gabbro massif (A. Werner), stratigraphy and tectonics |  | | Journal (article/letter/editorial) | | -3 ORIGINAL PAPER Lightning-strike fusion of gabbro and formation of magnetite-bearing fulgurite, Cornone...2009 # Springer-Verlag 2009 Abstract The Adamello gabbro exposed on the summit of Cornone di Blumone, Western...of magnetite + hornblende-rich areas of the host gabbro and/or possible separation of an immiscible high...Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany Introduction Lightning strike fusion of rock,...peaks is Cornone di Blumone (2,843 m), composed of gabbro of the southern Adamello massif that contains lightning |  | | Journal (article/letter/editorial) | | Technische Universität Darmstadt, Schnittspahnstr. 9, 64287 Darmstadt, Germany of Geological Sciences...University of Tübingen, Wilhelmstr. 56, 72074 Tübingen, Germany 2 Institute Correspondence: Laura Stutenbecker...epidote geochemistry and cooling ages derived from zircon fission track analysis and Ar–Ar dating of white...eclogite facies conditions. (b) In situ bedrock zircon fission track ages according to a compilation of...Myr ago, the heavy minerals are dominated by the zircon–tourmaline–rutile assemblage and garnet (von Eynatten |  | | Book | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede • 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) | | porphyritic LudwigshoÈhe granite, Central Odenwald (Germany) C. Dietl1 and E. Stein2 1 Geologisch-PalaÈontologisches...Republic of Germany 2 Institut fuÈr Mineralogie, TU Darmstadt, Federal Republic of Germany With 7 Figures...Odenwald (Fig. 1) in the southwestern part of Germany is composed largely of calk-alkaline plutons, with...epidote, ilmenite, magnetite, hematite, titanite, zircon, apatite and prehnite. Large (up to several centimetres)...K-feldspar (1 Vol.-%), titanite (1 Vol.-%), apatite, zircon, ore minerals, epidote, and prehnite are accessory |  | | Report (issue) | | ------------ .. -.-.--- ·----- -.-------- ·--Oligoclase gabbro or kauaiite ................................................................... __ . Hock :from quarry near Moiliili Chmch .............................................................. . 34 Dunite, gabbro, and other granular inclusions in basalt ................................................. . 43 Gabbro of Uwekahuna "laccolith" ................................................. II. Basalt and sodic gabbro from Kauai: A, Olivine-plagioclase basalt (chrysophyre) |  | | Journal (article/letter/editorial) | | Göttingen, Goldschmidtstraße 1, 37077 Göttingen, Germany 3 Department of Geography and Geology, University...of the Armorican terrane, a detrital zircon study revealed zircon ages at ~1.2 Ga, ~1.5 Ga and ~1.8 Ga...unit (SORGER et al., 2020). The youngest detrital zircon generation suggests a Neoproterozoic deposition...These findings are in good agreement with recent zircon studies of orthogneisses from the Drosendorf unit... Chemnitzer Straße 40, 09599 Freiberg/Saxony, Germany 3 Geological Survey of Austria, Department of Mineral |  | Nasdala, Lutz, Wenzel, Marita, Vavra, Gerhard, Irmer, Gert, Wenzel, Thomas, Kober, Bernd (2001) Metamictisation of natural zircon: accumulation versus thermal annealing of radioactivity-induced damage. Contributions to Mineralogy and Petrology, 141 (2) 125-144 doi:10.1007/s004100000235 | Journal (article/letter/editorial) | | Wenzel á Bernd Kober Metamictisation of natural zircon: accumulation versus thermal annealing of radioactivity-induced...Johannes Gutenberg-UniversitaÈt, 55099 Mainz, Germany E-mail: nasdala@mail.uni-mainz.de Tel.: +49-6131-3924781...FestkoÈrperphysik, Technische UniversitaÈt, 64289 Darmstadt, Germany G. Vavra Institut fuÈr Mineralogie, Eberhard...Karls-UniversitaÈt, Wilhelmstraûe 56, 72074 TuÈbingen, Germany G. Irmer Institut fuÈr Theoretische Physik, TU...Bernhard-von-Cotta-Straûe 4, 09596 Freiberg/Sa., Germany B. Kober Institut fuÈr Mineralogie, Ruprecht-Karls-UniversitaÈt |  | | Book (edition) | | Mineralogie, Geologic und Palaeontologie, Stuttgart, Germany. Quar. Jour. Geol. Soc., or Q. J. G. Geological...geologischen Geseli- Germany. Zestschrift ftir Krystallographie, Munich, Germany. TABLE OF CONTENTS...the micas it is an orthosilicate. igneous rocks. Zircon and titanite are interesting microscopic accessories...hematite) ; the sulphides (pyrite, pyrrhotite) ; zircon and titanite. These are often Next come the ferromagnesian...and muscovite. biotite Magnetite, apatite and zircon are always present, though is not at all unusual |
|
