| | Journal (article/letter/editorial) | Geowissenschaften, UniversitĂ€t TĂŒbingen, 72074 TĂŒbingen, Germany Abstract: The FĂŒrstenstein granite massif is the...Bavarian Forest. The medium- to coarse-grained Tittling granite was emplaced about 10 Ma later, between...or crystallisation due to the intrusion of the Tittling granite. The diorites have initial 5 Nd values...contribution to melts or melting of young mafic lower crust. The granites have similar initial 5 Nd values...bodies are likewise exposed in the basement of NE Bavaria along the western margin of the Bohemian Massif | | | Journal (article/letter/editorial) | Microprobe data and geochronological implications Erwin Krenn â, 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) 130â147 Lanzirotti...chlorite, chloritoid, epidote and clinozoisite (the latter four mainly in the lower-grade Chamezi basement)...al. (1994) and Zulauf et al. (2002). 132 E. Krenn, F. Finger / Lithos 95 (2007) 130â147 Fig. 1. Occurrences | | | Journal (article/letter/editorial) | Mountains (Croatia) Biljana StarijaĆĄ Mayer & Erwin Krenn & Fritz Finger Received: 18 October 2012 / Accepted:...plagioclase to albite coupled with the formation of epidote. Furthermore, partial replacement of igneous hornblende...hornblende by a fine-grained orthoamphibole-chamosite-epidote paragenesis can be observed and replacement of...handling: A. Moller B. StarijaĆĄ 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 | | | 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 | | 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, WĂŒllnerstr. 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 MĂŒnster, Germany e RufïŹnistr. 12, 80634 Munich, Germany b a r t i c l e i n f o ...breakdown of monazite to ïŹuorapatite, REE + Y-rich epidote, allanite and Th-orthosilicate.The retrograde assemblages...Foster et al., 2000, 2002; Franz et al., 1996; Krenn et al., 2009; Iizuka â Corresponding author. Tel | | | Journal (article/letter/editorial) | (Schneeberg Fault Zone, Eastern Alps, Austria) Kurt Krenn â 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) 255â268 deformation and strain-dependent...Lespinasse, 1999; Wawrzyniec and Selverstone, 2001; Krenn et al., 2008). This paper deals with a study of | | Ondrejka, M., PutiĆĄ, M., Uher, P., Schmiedt, I., PukanÄĂk, L., KoneÄnĂœ, P. (2016) Fluid-driven destabilization of REE-bearing accessory minerals in the granitic orthogneisses of North Veporic basement (Western Carpathians, Slovakia) Mineralogy and Petrology, 110 (5) 561-580 doi:10.1007/s00710-016-0432-8 | Journal (article/letter/editorial) | and xenotime-(Y) reveal their primary magmatic Lower to Middle Ordovician age (monazite: 472 ± 4 to 468...(huttonite or thorite), and allanite-(Ce) to REE-rich epidote or clinozoisite which commonly form concentric...amphibolite complex, LAC; PutiĆĄ 1992) as a typical lower-crustal complex (PutiĆĄ et al. 1997, 2011). The orthogneisses...rocks (Gemeric basement-cover complex, undivided (Lower Variscan Unit), 5 â Late Paleozoic to Mesozoic para-autochthonous...metasandstones, metavolcanics, metacarbonates (Lower Variscan Unit), 12 â Tatric basement-cover complex | | | 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 TeplĂĄ-Barrandian zone or in Bavaria as Zone of Erbendorf-VohenstrauĂ âZEVâ (Malkovsky...at Gsteinach, SinatengrĂŒn and GöpfersgrĂŒn, SE Germany (Fuessl and Weber 2009; 2011). They do, however...of the amphibole s.s.s and of the clinozoisite-epidote s.s.s. (Table 1a). Sphene and prehnite are less | | | Journal (article/letter/editorial) | from the Schellgaden mining district (Tauern Window, Eastern Alps) Erwin Krenn & Hubert Putz & Fritz Finger...bearing micaschists from the Schellgaden mining district, Tauern Window, Eastern Alps, was studied by means...Editorial handling: I. Broska and D. Harlov E. Krenn (*) : H. Putz : F. Finger : W. H. Paar Department... Eastern Alps, represents a historical mining district, which has produced some 30 t of Au over the last...forming events using co-existing monazite. 52 E. Krenn et al. Fig. 1 a Simplified geological map of the | | | Journal (article/letter/editorial) | eclogiteâgranuliteâamphibolite 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...the complete obliteration of other UHP features (Krenn et al., 2008). A pressureâtemperatureâdeformation...SW-directed shearing and intense folding (Krenn et al., 2008). The lower age limit for deformation is constrained...Tertiary Granitoids Areas of high-grade rock units Lower continental plate Tertiary Sediments & Volcanics | | Skrzypek, Etienne, Bosse, ValĂ©rie, Kawakami, Tetsuo, Martelat, Jean-Emmanuel, Ć tĂpskĂĄ, Pavla (2017) Transient allanite replacement and prograde to retrograde monazite (re)crystallization in medium-grade metasedimentary rocks from the Orlica-ĆnieĆŒnik 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) | cases to the breakdown of allanite, a REE-bearing epidote MA (see GierĂ© and Sorensen, 2004 for a review)...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...monazite, inclusions in garnet or plagioclase have lower ThO2 (0.8â2.6 wt.%) and similar to slightly higher...prisms or laths (50â200 ”m) associated with quartz, epidote, ilmenite and rare Th-rich silicate (Fig. 6d). | | Janots, E., Brunet, F., GoffĂ©, B., Poinssot, C., Burchard, M., CemiÄ, L. (2007) Thermochemistry of monazite-(La) and dissakisite-(La): implications for monazite and allanite stability in metapelites. Contributions to Mineralogy and Petrology, 154 (1) 1-14 doi:10.1007/s00410-006-0176-2 | Journal (article/letter/editorial) | und Geophysik, Ruhr-UniversitaÌt Bochum, Bochum, Germany L. CemicÌ Institut fuÌr Geowissenschaften der UniversitaÌt...UniversitaÌt Kiel OlshausenstraĂe 40, 24098 Kiel, Germany E. Janots (&) Institute of geological sciences...relations between monazite and allanite, the REE-epidote, have been mostly inferred indirectly from in situ...REE-mineral (see Spear and Pyle 2002, for a review). At lower grade (including diagenesis), monazite is mostly...the Institute of Geosciences (Kiel University, Germany). In particular, the La(OH)3 diffraction pattern | | | Journal (article/letter/editorial) | oxidation of titanite to ilmenite + quartz + REEâ epidote + allanite during metasomatic alteration of granites...under high-grade metamorphic conditions (Finger and Krenn), monaziteâxenotimeâ REE arsenatesâREEâcarbonate...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...the titanite to ilmenite, quartz, REE-bearing epidote, and allanite, while preserving the euhedral characteristic | | Budzyn, B., Harlov, D. E., Williams, M. L., Jercinovic, M. J. (2011) Experimental determination of stability relations between monazite, fluorapatite, allanite, and REE-epidote as a function of pressure, temperature, and fluid composition. American Mineralogist, 96 (10) 1547-1567 doi:10.2138/am.2011.3741 | Journal (article/letter/editorial) | between monazite, fluorapatite, allanite, and REE-epidote as a function of pressure, temperature, and fluid...GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany 3 Department of Geosciences, University of Massachusetts...experimental alteration of monazite to allanite, REE-epidote, fluorapatite, and/or fluorapatitebritholite was...between monazite, fluorapatite, and allanite or REE-epidote are more dependent on the fluid composition and...formation of fluorapatite and allanite or REE-epidote. Lowering the Ca content and raising the Na content | | Krenn, E., Harlov, D. E., Finger, F., Wunder, B. (2012) LREE-redistribution among fluorapatite, monazite, and allanite at high pressures and temperatures. American Mineralogist, 97 (11) 1881-1890 doi:10.2138/am.2012.4005 | Journal (article/letter/editorial) | allanite at high pressures and temperatures Erwin Krenn,1,* Daniel E. Harlov,2 Fritz Finger,1 and Bernd...GeoForschungsZentrum, Telegrafenberg, D-14473 Potsdam, Germany Abstract The REE enrichment process in fluorapatite...monazite as well as the bulk rock (Finger and Krenn 2007; Krenn et al. 2009). The latter authors also showed...isothermal decompression and not during cooling. Krenn et al. (2009) speculated that the REE-uptake capacity...observations and mineral chemistry. 1881 1882 KRENN ET AL.: REE-REDISTRIBUTION BETWEEN FLUORAPATITE | | | Journal (article/letter/editorial) | a variety of angles (e.g., Janots et al., 2007; Krenn and Finger, 2007; Finger et al., 1998). Lastly,...depletion in zircon (Pelleter et al., 2007), monazite (Krenn and Finger, 2004; Hansen and Harlov, 2007; Harlov...to obtain a spread of possible PâT 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...Tom Andersen, Oslo, Norway; Peter Appel, Kiel, Germany; Igor Broska, Bratislava, Slovak Republic; Alain | | Hauke, Matthias, Froitzheim, Nikolaus, Nagel, Thorsten J., Miladinova, Irena, Fassmer, Kathrin, Fonseca, RaĂșl O. C., Sprung, Peter, MĂŒnker, Carsten (2019) Two high-pressure metamorphic events, Variscan and Alpine, dated by LuâHf in an eclogite complex of the Austroalpine nappes (Schobergruppe, Austria) International Journal of Earth Sciences, 108 (4) 1317-1331 doi:10.1007/s00531-019-01708-8 | Journal (article/letter/editorial) | University of Bonn, Meckenheimer Allee 169, 53115 Bonn, Germany 2 Department of Geoscience, University of Aarhus...Cologne, ZĂŒlpicher StraĂe 49b, 50674 Cologne, Germany 4 Paul Scherrer Institute (PSI), OHLA/128, 5232...Eo-Alpine, i.e. Late Cretaceous (Linner 1999). Krenn et al. (2012) revealed three distinct metamorphic...Austroalpine units are subdivided into (1) the Lower Austroalpine nappes at the base, (2) the Northern...comprising Permian and Mesozoic sediments, (3) the Lower Central Austroalpine nappes, and (4) the Upper Central | | | Journal (article/letter/editorial) | in the formation of apatite and LREE enriched epidote (partly allanite) as a corona enclosing the monazite(Ce)...facies, rims of secondary Y-rich apatite and Y-rich epidote form around xenotime-(Y). In low-Ca granites however...xenotime-(Y) breaks down directly to Y-enriched epidote. The relative mobilities of the heavy and light...Keywords: Xenotime-(Y); Monazite-(Ce); Y-rich epidote; Granites; Western Carpathians 1. Introduction...xenotime-(Y) and monazite-(Ce) to Y-rich epidote or LREE-enriched epidote, respectively. N W E e hR In this | | | Journal (article/letter/editorial) | relict of the eo-Alpine prograde P-T path? KURT KRENN*, REINHARD KAINDL and GEORG HOINKES Institute of... together with prehnite, but occurs also with epidote and actinolite at greenschist facies metamorphism...overprint in the Cretaceous, which increases from lower greenschist facies in the NW of the ĂC to eclogite...The position of the SC is at the transition from lower amphibolite to eclogite facies conditions. Cretaceous...Verlagsbuchhandlung. D-70176 Stuttgart 662 K. Krenn, R. Kaindl, G. Hoinkes Fig. 1. Geological map of | | | Journal (article/letter/editorial) | Stuttgart, Azenbergstr. 18, D-70174 Stuttgart, Germany d Istituto di Geoscienze e Georisorse (I.G.G.-C...enclosed monazite with the matrix (e.g. Finger and Krenn, 2007; Montel et al., 2000; Terry et al., 2000)...According to Braga and Massonne (2008), the UZ lower crust experienced medium- to high-pressure conditions...related to crustal thickening (possibly followed by lower crust delamination), without being involved in a...2006). The discovery of paragonite, staurolite and epidote inclusions in large kyanite porphyroblasts from | | | 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...dominant garnet, apatite and zircon. Monazite, epidote, ilmenite, rutile, titanite, tourmaline, and chromite...chemical differences are speciïŹc. Rhabdophane-(Ce) has lower analytical totals â = 94.85â97.78 wt.% and normalization...(compare Fig. 3b and c). Rhabdophane has slightly lower LREE and higher Y + HREE contents relative to authigenic | | | Journal (article/letter/editorial) | Erlangen-NĂŒrnberg, 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 | | Finger, Fritz, Krenn, Erwin, Schulz, Bernhard, Harlov, Daniel, Schiller, David (2016) âSatellite monazitesâ in polymetamorphic basement rocks of the Alps: Their origin and petrological significance. American Mineralogist, 101 (5) 1094-1103 doi:10.2138/am-2016-5477 | Journal (article/letter/editorial) | Freiberg/ Saxony, Germany 3 GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany 4 Department...allanite-monazite transition, stabilizing monazite to lower temperatures (Spear 2010). The alteration of monazite...reacted to fluorapatite plus allanite during a second lower-T metamorphic 1094 FINGER ET AL.: SATELLITE MONAZITES...phenomenon has been termed satellite monazites (Krenn and Finger 2006), because the small monazite grains...back-reaction between fluorapatite and allanite (Krenn and Finger 2006), thus constituting an important | | | 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...as to what has been observed in tourmaline and epidote (e.g., Choo 2002, 2003) and could be related to...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) | monazite rims lack Eu anomalies and generally have lower Th contents than the cores. They result from dissolution...2003), and even amphibolite-facies (Williams, 2001; Krenn et al., 2008) terrains. In addition to detrital...4â4.5 kbar; Gibson and Wallmach, 1995), whereas lower greenschist-facies conditions prevailed in the goldïŹelds...comprise quartz, ïŹne-grained muscovite, albite, epidote, calcite, chlorite, sphene and a suite of heavy...surrounded by a broader zone with higher La and lower MREE contents. The highest La (~19â20 wt.% La2O3) |
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