 | | Journal (article/letter/editorial) | | Eur. J. Mineral. 2004, 16, 777–788 Zircon and titanite geochronology of the Fürstenstein granite massif...Geowissenschaften, Universität Tübingen, 72074 Tübingen, Germany Abstract: The Fürstenstein granite massif is the...granite in composition. This study provides precise zircon and titanite ages, obtained by the U-Pb isotopic...methods, and Nd-Sr isotopic data on this massif. Zircon dating constrains an intrusive sequence as following:...Bavarian Forest. The medium- to coarse-grained Tittling granite was emplaced about 10 Ma later, between |  | | Journal (article/letter/editorial) | | high-temperature metamorphic rocks (750° to 850°C, zircon morphology). Garnet compositions indicate that...510163, Germany e-mail: dill@bgr.de G. Steyer Raubersrieder Weg 14, 90530 Wendelstein, Germany environs...river Donau (Danube) between Regensburg and Passau, Germany (Dill et al. 2007a, Fig. 1). Mineralogical...the study area, a Location of the study area in Germany indicated by the framed area b Location of the...the “Donauplatin” placers between Regensburg and Passau (sampling site) (redrawn from the official geological |  | Finger, F., Gerdes, A., Janoušek, V., René, M., Riegler, G. (2007) Resolving the Variscan evolution of the Moldanubian sector of the Bohemian Massif: the significance of the Bavarian and the Moravo-Moldanubian tectonometamorphic phases. Journal of GEOsciences, 52 (1-2) 9-28 | Journal (article/letter/editorial) | | Geoscience, Senckenberganlage 28, D-60054 Frankfurt, Germany 3 Czech Geological Survey, Klárov 3, 118 21 Prague...from the Czech Republic southwards into eastern Bavaria and western Upper Austria (Mühl and Sauwald Zone)...Batholith Mü SaS hl Z uawu on alad w e ldzo ne Fa Passau dl Gföhl Unit Č.Budějovice Ro Da M o l d...the Czech Republic and the Moldanubian Zone in Bavaria. The outcome of this investigation sheds new light...Drosendorf Unit (named after a village in northern Lower Austria) was originally introduced for a variegated |  | | Journal (article/letter/editorial) | | Linz Di hlz Boh K Mü th B ian SB Vi Passau R D Bat P Fig. 1a Simplified geological map...the Variscan nappe pile in Lower Austria has been dated at ~340 Ma (U-Pb zircon and monazite data; e.g....in these areas (Mühlzone and parts of eastern Bavaria). Crustal uplift also might have caused Late...sillimanite in deformed Weinsberg granite. Kasbach quarry, Loc. 567. d – Recrystallisation (R) along fractures...after fracturing at elevated strain rate and under lower amphibolite-facies P–T conditions. Foam textures |  | | Book | | (KOKOTSKO) STOCK ……………………………………………………………... 76 1.22. LOWER VLTAVA COMPOSITE MASSIF …………………………………………………… 77...Sázava Tonalite – 349 ± 12 Ma (Pb-Pb zircon), 354.1 ± 3.5 Ma (U-Pb zircon), Blatná Granodiorite 331 ± 9 Ma...(Pb-Pb zircon),346.7 ± 1.6 Ma (SHRIMP zircon), Požáry Trondhjemite 351 ± 11 Ma (Pb-Pb zircon), Vrančice...granitic intrusions of the CBCB single-zircon dating indicates Lower Carboniferous (Tournaisian–Viséan) ages... Geological environment: Neoproterozoic up to Lower Devonian pellites, greywackes, metabasalts, keratophyres |  | Krenn, Kurt, Bauer, Christoph, Proyer, Alexander, Mposkos, Evripidis, Hoinkes, Georg (2008) Fluid entrapment and reequilibration during subduction and exhumation: A case study from the high-grade Nestos shear zone, Central Rhodope, Greece. Lithos, 104 (1) 33-53 doi:10.1016/j.lithos.2007.11.005 | Journal (article/letter/editorial) | | Nestos shear zone, Central Rhodope, Greece Kurt Krenn a,⁎, Christoph Bauer a , Alexander Proyer a , Evripidis...865. E-mail address: kurt.krenn@uni-graz.at (K. Krenn). 0024-4937/$ - see front matter © 2007 Elsevier...dominated environments (eclogites), aqueous 34 K. Krenn et al. / Lithos 104 (2008) 33–53 and gaseous inclusions...of Xanthi town is indicated by a rectangle. K. Krenn et al. / Lithos 104 (2008) 33–53 The present study...Alpine Suture Zone between two continental blocks (Krenn et al., 2007). To establish the exhumation history |  | | Journal (article/letter/editorial) | | monazite growth along a PT loop F. Finger ⁎, E. Krenn Department of Material Science, Division of Mineralogy...although the mineralogical 104 F. Finger, E. Krenn / Lithos 95 (2007) 103–115 investigations that...The time difference between the HP event and the lower-P overprint is not exactly known. However, it is...the role of Sr in monazite In a previous study (Krenn and Finger, 2004), it was recognised that the garnet-rich...plagioclase coupled with the liberation of strontium. Krenn and Finger (2004) found that on the retrograde branch |  | | Book | | Gottfried-Wilhelm-Leibniz University Hannover, Germany Responsible Series Editor: F. Pirajno ISSN 1876-1682...rocks in the Bohemian Massif, which is shared by Germany, the Czech Republic, Poland and Austria, has been...the region are not very promising and mining in Germany is obviously a profession of the past, but learning...pegmatites. The geochemical atlas of the F.R. of Germany, albeit not covering all rare elements of relevance...himself after passing through the book. Hannover, Germany Harald G. Dill Contents 1 Pegmatitic Rocks |  | | Journal (article/letter/editorial) | | Microprobe data and geochronological implications Erwin Krenn ⁎, Fritz Finger Division of Mineralogy, Department...621. E-mail address: erwin.krenn@sbg.ac.at (E. Krenn). 0024-4937/$ - see front matter © 2006 Elsevier...temperature (e.g. Smith and Barreiro, 1990; E. Krenn, F. Finger / Lithos 95 (2007) 130–147 Lanzirotti...and clinozoisite (the latter four mainly in the lower-grade Chamezi basement). As is typical for metapelites...al. (1994) and Zulauf et al. (2002). 132 E. Krenn, F. Finger / Lithos 95 (2007) 130–147 Fig. 1. Occurrences |  | | Journal (article/letter/editorial) | | upper amphibolite-facies terranes, on the one hand, zircon may not record the metamorphic event within the...pervasive deformation and shearing at decreasing and lower temperatures as it can be expected in the Kekem...al. 2005, McFarlane et al. 2006, Finger & Krenn 2007, Krenn & Finger 2007). Even in granulite-facies rocks...distinct outcrops in stereographic projection to the lower hemisphere of Schmidt-net. monazite geochronology...garnet (< 5%) and the accessories apatite, sphene, zircon, monazite and oxides. Under the microscope, the |  | | Journal (article/letter/editorial) | | contrasting common rock-forming minerals like quartz and zircon that have been present throughout geologic Figure... Be2AlO4. Twinned crystals from the Ratnapura district, Sri Lanka. Photograph of sample R100130 reproduced...other reservoirs, i.e., 2.1 vs. 1.4 ppm in the lower crust and 0.07 ppm in primitive mantle (Rudnick...cosmochemical behavior differs because Hg has a much lower 50% condensation temperature for a solar-system...minasgeraisite-(Y) has been reported from the Krenn quarry, Matzensdorf/Tittling, Germany (Habel and Habel 2009) and Vlastějovice |  | Janoušek, V., Krenn, E., Finger, F., Míková, J., Frýda, J. (2007) Hyperpotassic granulites from Blanský les (Moldanubian Zone, Bohemian Massif) revisited. Journal of GEOsciences, 52 (1-2) 73-112 | Journal (article/letter/editorial) | | other conspicuous euhedral crystals are apatite and zircon. In the rock occur also Zr–Nb-rich rutile and much...calc-alkaline and hyperpotassic granulites. The zircon saturation temperatures tend to be more variable...magma could have developed by garnet, apatite and zircon dominated fractional crystallization, with or without...granulites in South Bohemia, Western Moravia and Lower Austria (Fig. 1a–b) have attracted, their genesis...alkali feldspar, prevailing over garnet, apatite and zircon, all in relatively large crystals. Even though |  | Biševac, Vanja, Krenn, Erwin, Balen, Dražen, Finger, Fritz, Balogh, Kadosa (2011) Petrographic, geochemical and geochronological investigation on granitic pebbles from Permotriassic metasediments of the Tisia terrain (eastern Papuk, Croatia) Mineralogy and Petrology, 102 (1) 163-180 doi:10.1007/s00710-011-0175-5 | Journal (article/letter/editorial) | | (eastern Papuk, Croatia) Vanja Biševac & Erwin Krenn & Dražen Balen & Fritz Finger & Kadosa Balogh Received:...Zagreb, Croatia e-mail: vabisevac@geol.pmf.hr E. Krenn : F. Finger Division of Mineralogy, Department of...(Jamičić 1983, 1988; Pamić and Lanphere 1991). The lower and middle parts of the complex are intruded by...sandstones, represents the transitional horizon to a Lower Triassic sandstone Fig. 3 Microphotographs (cross-polarized...background settings counting times) can be taken from Krenn et al. (2008). Single monazite ages and errors were |  | | Journal (article/letter/editorial) | | Erlangen-Nürnberg, Schlossgarten 5a, 91054 Erlangen, Germany. thomas.angerer@uibk.ac.at 1 2 Despite the strong...all Tösens district ore (except Hochjoch) defines a low-Mn/high-Hg group. Most Nauders district ore (Knappental...Stilleweg 2, Hannover Germany; present address: Kiebitzweg, 104, 30880 Laatzen, Germany 3 Department of Lithospheric...Geowissenschaften und Rohstoffe (BGR, Hannover, Germany) carried out a reconnaissance survey of a hitherto...capacities can be extrapolated reasonably well to lower temperatures, i.e. from 50K to absolute zero by |  | Skrzypek, Etienne, Bosse, Valérie, Kawakami, Tetsuo, Martelat, Jean-Emmanuel, Štípská, Pavla (2017) Transient allanite replacement and prograde to retrograde monazite (re)crystallization in medium-grade metasedimentary rocks from the Orlica-Śnieżnik Dome (Czech Republic/Poland): Textural and geochronological arguments. Chemical Geology, 449. 41-57 doi:10.1016/j.chemgeo.2016.11.033 | Journal (article/letter/editorial) | | al., 2002; Harlov and Förster, 2003; Finger and Krenn, 2007). 5 ACCEPTED MANUSCRIPT Prograde and retrograde...conditions TE D (Bollinger and Janots, 2006; Krenn and Finger, 2007). Prograde to retrograde recrystallization...geochronology on metasedimentary rocks Detrital zircon ages indicate that the protoliths of the metasedimentary...phases, and ilmenite, apatite, tourmaline, monazite, zircon and allanite are accessory. T Garnet forms rounded...common while ilmenite, rutile, apatite, tourmaline, zircon, monazite, allanite and xenotime are accessory |  | | Journal (article/letter/editorial) | | (Schneeberg Fault Zone, Eastern Alps, Austria) Kurt Krenn ⁎ Institute of Earth Sciences, Department of Mineralogy...1995; Boullier et al., 1997; Fu et al., 2001, 2003; Krenn et al., 2008). Fluid inclusion generations have...internal overpressure large inclusions decrepitate at lower effective pressure than smaller inclusions (e.g...Boullier, 1999). Additionally, plastic 256 K. Krenn / Lithos 118 (2010) 255–268 deformation and strain-dependent...Lespinasse, 1999; Wawrzyniec and Selverstone, 2001; Krenn et al., 2008). This paper deals with a study of |  | | Journal (article/letter/editorial) | | Stuttgart, Azenbergstr. 18, D-70174 Stuttgart, Germany d Istituto di Geoscienze e Georisorse (I.G.G.-C...acquisition of age data from accessory minerals such as zircon, monazite, allanite and xenotime in metamorphic...processes. At present, monazite is competing with zircon as the most widely used mineral for dating metamorphic...usually recorded only in thin and barely analyzable zircon rims. Metapelites commonly contain monazite in...enclosed monazite with the matrix (e.g. Finger and Krenn, 2007; Montel et al., 2000; Terry et al., 2000) |  | Sindern, Sven, Gerdes, Axel, Ronkin, Yuri L., Dziggel, Annika, Hetzel, Ralf, Schulte, Bernd Aloys (2012) Monazite stability, composition and geochronology as tracers of Paleoproterozoic events at the eastern margin of the East European Craton (Taratash complex, Middle Urals) Lithos, 132. 82-97 doi:10.1016/j.lithos.2011.11.017 | Journal (article/letter/editorial) | | Aachen University, Wüllnerstr. 2, 52056 Aachen, Germany Institute of Geosciences, Johann Wolfgang Goethe...University, Altenhöferallee 1, 60438 Frankfurt a.M., Germany c Institute of Geology and Geochemistry, Russian...Corrensstr. 24, 48149 Münster, Germany e Ruffinistr. 12, 80634 Munich, Germany b a r t i c l e i n f o ...Foster et al., 2000, 2002; Franz et al., 1996; Krenn et al., 2009; Iizuka ⁎ Corresponding author. Tel...metamorphism, zircon, U–Pb1 Granulite facies metamorphism, zircon, U–Pb2 HT metamorphism (gneiss), zircon, U–Pb1 |  | | Journal (article/letter/editorial) | | eclogite–granulite–amphibolite transition A. PROYER, K. KRENN AND G. HOINKES Department of Earth Sciences, University...imprint (Mposkos & Krohe, 2006; Bauer et al., 2007; Krenn et al., 2008; Fig. 1). This unit is juxtaposed between...Complex underwent three stages of metamorphism with zircon ages ranging c. 170–160, 120–115 and 75 Ma respectively...the complete obliteration of other UHP features (Krenn et al., 2008). A pressure–temperature–deformation...SW-directed shearing and intense folding (Krenn et al., 2008). The lower age limit for deformation is constrained |  | | Journal (article/letter/editorial) | | Leibniz University, Welfengarten 1 D-30167 Hannover, Germany Abstract: In some areas of the Variscan orogen...the Hagendorf-Pleystein Pegmatite Province, SE Germany, and present in many ensialic orogens elsewhere... 10-11) named the Teplá-Barrandian zone or in Bavaria as Zone of Erbendorf-Vohenstrauß “ZEV” (Malkovsky...at Gsteinach, Sinatengrün and Göpfersgrün, SE Germany (Fuessl and Weber 2009; 2011). They do, however...scheelite mineralization in lithotype 2. In the quarry “Oberbaumühle” near Windischeschenbach, macroscopic |  | | Journal (article/letter/editorial) | | processes Accessory minerals have, since the advent of zircon dating (see review of Davis et al., 2003), become...a variety of angles (e.g., Janots et al., 2007; Krenn and Finger, 2007; Finger et al., 1998). Lastly,...enrichment or depletion in zircon (Pelleter et al., 2007), monazite (Krenn and Finger, 2004; Hansen and...to obtain a spread of possible P–T conditions. Krenn et al. investigate the age and composition of both...monazite dating to a deformed granite exposed in a lower crustal shear zone (Athabasca granulite terrane |  | | Journal (article/letter/editorial) | | age (e.g., Shaw et al. 2001; Gibson et al. 2004; Krenn et al. 2009; Martins et al. 2009), yet in others...found to be the “most stable” when compared to zircon, fluorite, bastnasite, thorite, and xenotime (Breiter...Er2O3+Yb2O3 contents with increasing UO2+ThO2 (Fig. 2a; Krenn and Finger 2010). However, monazite grains from...(wt%). Data from the granulite facies rocks from Krenn and Finger (2010) and from A-type granites from...enriched MREE compared to those with <4 wt% UO2+ThO2 (Krenn and Finger 2010). However, monazite from A-type |  | | Journal (article/letter/editorial) | | Diagenesis Very-low grade metamorphism Graywackes Lower Carboniferous Culm basin Bohemian Massif a b s...2003; Foster et al., 2002; Kingsbury et al., 1993; Krenn et al., 2008; Lanzirotti and Hanson, 1996; Smith...Heavy minerals include dominant garnet, apatite and zircon. Monazite, epidote, ilmenite, rutile, titanite...fluorapatite; Xe — xenotime-(Y); Th — Thorite; Zr — zircon. Numbers correspond to analytical point locations...chemical differences are specific. Rhabdophane-(Ce) has lower analytical totals ∑ = 94.85–97.78 wt.% and normalization |  | | Journal (article/letter/editorial) | | Mountains (Croatia) Biljana Starijaš Mayer & Erwin Krenn & Fritz Finger Received: 18 October 2012 / Accepted:...handling: A. Moller B. Starijaš Mayer (*) : E. Krenn : F. Finger Department of Materials Engineering...et al. (1996). Sample BS 304b was collected in a quarry ~3 km NNE of Rogolji. b Position of the Sample...vol.%), allanite/epidote, ilmenite, titanite and zircon. The rock shows a medium-grained igneous fabric...Salzburg, following routines described in Krenn et al. (2008) and Krenn and Finger (2004). About 20 small Th-rich |  | | Journal (article/letter/editorial) | | g. Finger et al., 1998; Wing et al., 2003), and zircon (Hoskin and Schaltegger, 2003) allow for constraints...under high-grade metamorphic conditions (Finger and Krenn), monazite–xenotime– REE arsenates–REE–carbonate...metapelites during alpine low temperature retrogression (Krenn and Finger); and (9) chemical and morphological...pyroxenes should be expected to predominate in the lower crust and upper mantle of the Earth as well as in...zirconolite, as well as elevated Nb and W contents. Late zircon grew as the last Zr-bearing mineral during contact |
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