Pyrite generations from the permian/triassic boundary section, Bálvány, Bükk Mts., Hungary
Three pyrite generations were described in the Bálvány Composite Section based on morphology, WDX and S34S data. Among them the 0.1- 0.2 mm size, isotopically light euhedral pyrite is early diagenetic. This generation was found in the whole section. The "boundary shale" is characterised by...
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| Dokumentumtípus: | Cikk |
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Department of Mineralogy, Geochemistry and Petrology, University of Szeged
Szeged
2008
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| Sorozat: | Acta mineralogica-petrographica
48 |
| Kulcsszavak: | Földtan, Ásványtan, Kőzettan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/25152 |
| LEADER | 01828nab a2200229 i 4500 | ||
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| 008 | 161017s2008 hu o 0|| eng d | ||
| 022 | |a 0365-8066 | ||
| 040 | |a SZTE Egyetemi Kiadványok Repozitórium |b hun | ||
| 041 | |a eng | ||
| 100 | 1 | |a Zajzon Norbert | |
| 245 | 1 | 0 | |a Pyrite generations from the permian/triassic boundary section, Bálvány, Bükk Mts., Hungary |h [elektronikus dokumentum] / |c Zajzon Norbert |
| 260 | |a Department of Mineralogy, Geochemistry and Petrology, University of Szeged |b Szeged |c 2008 | ||
| 300 | |a 49-53 | ||
| 490 | 0 | |a Acta mineralogica-petrographica |v 48 | |
| 520 | 3 | |a Three pyrite generations were described in the Bálvány Composite Section based on morphology, WDX and S34S data. Among them the 0.1- 0.2 mm size, isotopically light euhedral pyrite is early diagenetic. This generation was found in the whole section. The "boundary shale" is characterised by microbial pyrite framboids, which formed on the surface, or close to the surface of the sediment around the redox boundary with the presence of dysoxic bottom-water. This, and the laminated structure of the sediment prove anoxic conditions in the whole sediment. Most probably there was dysoxic bottom water. The third generation is also euhedral, but has a larger grain size (1-2 mm). Based on 534S data and sphalerite inclusions, this generation is of late diagenetic or hydrothermal origin. This type occurs only in the shale and the top of the underlying limestone. The sulphides of the section are almost totally oxidised. | |
| 650 | 4 | |a Természettudományok | |
| 650 | 4 | |a Föld- és kapcsolódó környezettudományok | |
| 695 | |a Földtan, Ásványtan, Kőzettan | ||
| 700 | 0 | 1 | |a Vető István |e aut |
| 856 | 4 | 0 | |u http://acta.bibl.u-szeged.hu/25152/1/mineralogica_048_049-053.pdf |z Dokumentum-elérés |