Carboniferous stratigraphy and development of the Erzgebirge Basin, East Germany

Schneider, Jörg W.; Hoth, Klaus; Gaitzsch, Birgit; Berger, Hans J.; Steinborn, Henry; Walter, Harald; Zeidler, Matthias K.

doi:10.1127/1860-1804/2005/0156-0431

Cited by 32 publications

(10 citation statements)

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“…Several Permian volcanic events (288-298 Ma) resulted in the formation of hydrothermal veins, agates, and silicified wood within layers of rhyolites, ignimbrites, and tuffs in the Erzgebirge basin, Germany (Schneider et al 2005). For instance, quartz with yellow CL was found in samples of silicified wood from Chemnitz, Germany (Götze and Rössler 2000).…”

Section: Sample Materialsmentioning

confidence: 96%

Origin and significance of the yellow cathodoluminescence (CL) of quartz

Götze

Pan

Stevens‐Kalceff

et al. 2015

American Mineralogist

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The origin of yellow cathodoluminescence (CL) in quartz has been investigated by a combination of CL microscopy and spectroscopy, electron paramagnetic resonance (EPR) spectroscopy, and spatially resolved trace-element analysis by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). The study shows that the appearance of a ~570 nm (2.17 eV) emission band can be attributed to high oxygen deficiency and local structural disorder in quartz. A proposed luminescence center model implies self-trapped exciton (STE) emission from localized amorphized regions in quartz. Although the high-intensity emission at 570 nm is in general consistent with high concentrations of E′ 1 defects detected by EPR spectroscopy, CL studies with different electron beam parameters and annealing experiments up to 600 °C show a temperature and irradiation dependence of the luminescence related defects excluding the role of E′ 1 centers as direct luminescence activators for the 570 nm emission. The evaluation of geochemical data shows that quartz with yellow CL occurs in low-temperature hydrothermal environment (mostly <250 °C) and is related to fast crystallization in an environment with oxygen deficiency.

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Section: Sample Materialsmentioning

confidence: 96%

Origin and significance of the yellow cathodoluminescence (CL) of quartz

Götze

Pan

Stevens‐Kalceff

et al. 2015

American Mineralogist

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“…The specimens described here were collected from a roadcut of the A4 federal motorway near Chemnitz-Glösa, Free State of Saxony, Germany, where a 80 m thick succession of Mississippian sandstones, shales and occasional coaly layers of the upper part of the Ortelsdorf Formation, Hainichen Subgroup, Hainichen Basin, is exposed (Schneider et al 2005). The Hainichen Basin is a small basin, filled with alluvial plain, alluvial fan and fan delta deposits.…”

Section: Locality Materials and Methodsmentioning

confidence: 99%

“…Additional material was sampled in sand and clay pits of the Berthelsdorf formation near Chemnitz. The faunal record, including adpressions of arachnids, myriapods, arthropleurids, eurypterids, shark egg capsules and single isolated fish remains (Nindel 1955, Rößler & Schneider 1997) has exclusively been described from the Berthelsdorf Formation until 2001 (Schneider et al 2005). During the reconstruction of the A4 federal motorway near Chemnitz-Glösa from 2001 to 2003 extensive collection of fossil plants and animals was possible in the Ortelsdorf Formation.…”

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confidence: 99%

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Arthropod cuticles from the upper Viséan (Mississippian) of eastern Germany

Haug¹,

Hübers²,

Haug³

et al. 2014

Bull. Geosci.

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“…The SADC has been subdivided (Wolf 1960;Lobin 1986;Schneider et al 2005;Förster et al 2008), from base to top, into: the 'Putzmühle Formation' (here named Schönfeld pre-eruption sediments, SPES), the 'Schönfeld Rhyolite' (here Lower Schönfeld Complex, LSC), and the 'Schönfeld Formation' with the overlying 'Mühlwald Formation' (here Upper Schönfeld Complex, USC). Based on our investigation, the old names are not precise enough or misleading; e.g.…”

Section: K R U š N é H O R Y F a U Ltmentioning

confidence: 99%

The Late Carboniferous Schönfeld-Altenberg Depression on the NW margin of the Bohemian Massif (Germany/Czech Republic): volcanosedimentary and magmatic evolution

Walther¹,

Breitkreuz²,

Rapprich³

et al. 2016

J. Geosci.

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The Altenberg-Teplice Volcanic Complex (ATVC) exposed on both sides of the German-Czech border in the Erzgebirge/ Krušné hory Mts. is one of the earliest late-Variscan to post-Variscan volcanic centres in Europe. The ATVC features an early volcanosedimentary succession preserved in the Schönfeld-Altenberg Depression Complex (SADC), covered by voluminous ignimbrites and lavas of the Teplice Rhyolite (TR). Published radiometric age dating of ATVC rocks and associated mineralizations suggest a Lower Namurian (Serpukhovian) age for the SADC. The SADC (10 × 15 km) was subdivided into the Schönfeld-Pre-Eruptive Sediments (SPES), and the volcanosedimentary successions of the Lower Schönfeld Complex (LSC) and the Upper Schönfeld Complex (USC). The SPES (maximum thickness of 60 m) is deposited on metamorphic basement and consists of sandstones and conglomerates with variable types of metamorphic clasts; it also contains carbonaceous layers. The LSC sequence starts with widespread, fine-grained ignimbrites (maximum thickness of 153 m) of rhyolitic composition. The explosive phase of the LSC was followed by the formation of (trachy-)dacitic lava(s) and subvolcanic bodies. The USC sequence commences with coarse-grained talus deposits, consisting of metamorphic clasts, indicating a major tectonic activity. Lavas and pyroclastic rocks dominate the USC in the southern part, whereas in the Schönfeld area (northern part), lava dome explosion-related pyroclastic and sedimentary deposits, alternating with carbonaceous layers, prevail. Charcoal fragments and fine charcoal dust is present in all SADC units as layers, or in the matrix of volcanosedimentary deposits. Allochtonous anthracite seams in the USC that were subject to historic mining in the Schönfeld area consist of a bedded alternation of carbonaceous deposits with clays to siltstones. Presumably, formation of charcoal was related to explosive eruptions and/or wild fires, and redeposition by alluvial processes. The SADC volcanic rocks are classified as dacites, trachy-dacites and rhyolites, having unusually elevated concentrations of Ti and compatible elements like Cr and V. Compared to the LSC, the USC volcanics show a less alkaline affinity. The studied samples are isotopically homogeneous, with εNd 325 = -2.4 to -3.3 and 87 Sr/ 86 Sr 325 = 0.70556-0.70626, pointing to a common source of magmas for both the LSC and the USC. The two-stage Nd model ages vary between 1.2 and 1.3 Ga, similar to coeval Saxothuringian granites from the Erzgebirge Mts. as well as volcanic rocks from the Intra-Sudetic Basin.

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Carboniferous stratigraphy and development of the Erzgebirge Basin, East Germany

Cited by 32 publications

References 0 publications

Origin and significance of the yellow cathodoluminescence (CL) of quartz

Origin and significance of the yellow cathodoluminescence (CL) of quartz

Arthropod cuticles from the upper Viséan (Mississippian) of eastern Germany

The Late Carboniferous Schönfeld-Altenberg Depression on the NW margin of the Bohemian Massif (Germany/Czech Republic): volcanosedimentary and magmatic evolution

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Carboniferous stratigraphy and development of the Erzgebirge Basin, East Germany

Cited by 32 publications

References 0 publications

Origin and significance of the yellow cathodoluminescence (CL) of quartz

Origin and significance of the yellow cathodoluminescence (CL) of quartz

Arthropod cuticles from the upper Viséan (Mississippian) of eastern Germany

The Late Carboniferous Sch&ouml;nfeld-Altenberg Depression on the NW margin of the Bohemian Massif (Germany/Czech Republic): volcanosedimentary and magmatic evolution

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The Late Carboniferous Schönfeld-Altenberg Depression on the NW margin of the Bohemian Massif (Germany/Czech Republic): volcanosedimentary and magmatic evolution