Textural and chemical evolution of a fractionated granitic system: the Podlesí stock, Czech Republic

Breiter, Karel; Müller, Axel; Leichmann, Jaromı́r; Gabasova, Ananda

doi:10.1016/j.lithos.2003.11.004

Cited by 96 publications

(68 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The monzonite sample originates from the SE tail of the intrusion. c Geological cross-section of the Podlesí granite according to Breiter et al (2005). The sample originates from a quarry in the central roof of the intrusion…”

Section: Meissen Monzonitementioning

confidence: 99%

“…1a). It is the youngest (311 ± 1 Ma; Breiter et al 2005) and most differentiated granite of the Eibenstock-Nejdek pluton and well studied regarding geochemistry, petrology and mineralogy (Breiter et al 1997;Chlupáčová and Breiter 1998;Táborská and Breiter 1998;Breiter 2001Breiter , 2002Maros et al 2002;Müller et al 2002;Breiter et al 2005). The granite intruded slightly older biotite granites and Ordovician phyllites.…”

Section: Podlesí Dyke Granitementioning

confidence: 99%

“…In the uppermost 50 cm, the dyke shows prominent layers with unidirectional solidification fabrics (Breiter et al 2005). The solidification fabrics comprise fan-like zinnwaldite, comb quartz and K-feldspar up to 6 cm length embedded in fine-grained granite.…”

Section: Podlesí Dyke Granitementioning

confidence: 99%

“…The chemistry and CL characteristics of the 'snowball' quartz are different from that of the early crystallised quartz phenocrysts occurring in the stock granite (Müller et al 2002). The structural and chemical features of the 'snowball' quartz imply that the crystals grew more or less in situ (Müller et al 2002;Breiter et al 2005), i.e., the features are indicative for highly evolved, fluid-rich magma (Müller and Seltmann 1999). The extrapolated solidus temperature of the dyke granite magma determined from melt inclusion studies is 610 ± 26°C (Thomas et al 1996).…”

Section: Podlesí Dyke Granitementioning

confidence: 99%

“…The Erzgebirge and the Elbe Zone are located at the northern margin of the Bohemian Massif and form parts of the Saxothuringian Zone of the Variscan orogeny. The Meissen monzonite synkinematically intruded the Elbe Zone at 334 ± 3 Ma (Hofmann et al 2009), whereas the Podlesí dyke granite was emplaced during a quite passive post-orogenic tectonic event at 311 ± 1 Ma (Breiter et al 2005; Fig. 1).…”

mentioning

confidence: 99%

See 4 more Smart Citations

Lattice-preferred orientations of late-Variscan granitoids derived from neutron diffraction data: implications for magma emplacement mechanisms

Müller

Leiss

Ullemeyer

et al. 2010

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

The lattice-preferred orientation (LPOs) of two late-Variscan granitoids, the Meissen monzonite and the Podlesí dyke granite, were determined from high-resolution time-of-flight neutron diffraction patterns gained at the diffractometer SKAT in Dubna, Russia. The results demonstrate that the method is suitable for the LPO analysis of polyphase, relatively coarse-grained (0.1-6 mm) rocks. The Meissen monzonite has a prominent shape-preferred orientation (SPO) of the non-equidimensional minerals feldspar, mica and amphibole, whereas SPO of the Podlesí granite is unapparent at the hand-specimen scale. The neutron diffraction data revealed distinct LPOs in both granitoids. The LPO of the non-equidimensional minerals feldspar, mica and amphibole developed mainly during magmatic flow. In the case of the Meissen monzonite, the magmatic flow was superimposed by regional shear tectonics, which, however, had no significant effect on the LPOs. In both samples, quartz shows a weak but distinct LPO, which is atypical for plastic deformation and different in the syn-kinematic Meissen monzonite and the postkinematic Podlesí granite. We suggest that, first of all, the quartz LPO of the Meissen monzonite is the result of oriented growth in an anisotropic stress field. The quartz LPO of the Podlesí granite, which more or less resembles a deformational LPO in the flattening field of the local strain field, developed during magmatic flow, whereby the rhombohedral faces of the quartz crystals adhered to the (010) faces of aligned albite and to the (001) faces of zinnwaldite. Due to shape anisotropy of their attachments, the quartz crystals were passively aligned by magmatic flow. Thus, magmatic flow and oriented crystal growth are the major LPO-forming processes in both granitoids. For the Meissen monzonite, the solid-state flow was too weak to cause significant crystallographic re-orientation of the minerals aligned by magmatic flow. Finally, the significance of our results for the evaluation of the regional tectonic environment during magma emplacement is discussed. The discussion on the regional implications of the more methodologically oriented results provides the basis for future, more regionally aimed studies in view of the fabric characteristics of such plutons and their developing mechanisms.

show abstract

Section: Meissen Monzonitementioning

confidence: 99%

Section: Podlesí Dyke Granitementioning

confidence: 99%

Section: Podlesí Dyke Granitementioning

confidence: 99%

Section: Podlesí Dyke Granitementioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Lattice-preferred orientations of late-Variscan granitoids derived from neutron diffraction data: implications for magma emplacement mechanisms

Müller

Leiss

Ullemeyer

et al. 2010

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

show abstract

The role of the subducting slab and melt crystallization in the formation of magnetite-(apatite) systems, Coastal Cordillera of Chile

et al. 2020

View full text Add to dashboard Cite

Variations of OH defects and chemical impurities in natural quartz within igneous bodies

et al. 2020

Self Cite

View full text Add to dashboard Cite

In this study, we present the first systematic dataset on natural variations of OH defect and trace element contents in quartz within igneous bodies. Samples were derived from bore holes of two plutonic bodies from the Krušné Hory/Erzgebirge (German–Czech border), representing typical A-type (Cínovec/Zinnwald granite cupola) and S-type (Podlesí Stock) granite intrusions. Fourier Transform Infrared spectroscopy of quartz was used to investigate the sample set with regard to its OH defect speciation and content. For Zinnwald quartz, IR absorption spectra reveal different lithologies due to changes of the OH defect inventory, enabling a subdivision of the granitic body: (1) hydrothermal greisen quartz of the uppermost part of the intrusion have low OH defect contents (average of 15 µg/g H2O); (2) zinnwaldite granite quartz vary strongly in defect content and show the highest content of the dataset (10–70 µg/g H2O); (3) quartz from an underlying biotite granite have slightly lower, but very uniform contents down to the bottom of the borehole at 1600 m (average 20 µg/g H2O). Infrared spectra of Podlesí quartz reveal a gradual increase in total defect water content with increasing depth over 350 m (30–55 µg/g H2O). Lithium contents in quartz samples from the uppermost part of the Zinnwald intrusion correlate with the occurrence of Li-specific OH defects, while cathodoluminescence (CL) images do not show specific differences. Our findings evidence the potential of OH defects in quartz as a tool to decipher differentiation trends in igneous bodies, and the application of their eroded material for provenance analyses.

show abstract

Textural and chemical evolution of a fractionated granitic system: the Podlesí stock, Czech Republic

Cited by 96 publications

References 27 publications

Lattice-preferred orientations of late-Variscan granitoids derived from neutron diffraction data: implications for magma emplacement mechanisms

Lattice-preferred orientations of late-Variscan granitoids derived from neutron diffraction data: implications for magma emplacement mechanisms

The role of the subducting slab and melt crystallization in the formation of magnetite-(apatite) systems, Coastal Cordillera of Chile

Variations of OH defects and chemical impurities in natural quartz within igneous bodies

Contact Info

Product

Resources

About