Alluvial and volcanic pathways to silicified plant stems (Upper Carboniferous–Triassic) and their taphonomic and palaeoenvironmental meaning

0345077 - ÚSMH 2011 RIV NL eng J - Journal Article
Matysová, Petra - Rössler, R. - Götze, J. - Leichmann, J. - Forbes, G. - Tailor, E. - Sakala, J. - Grygar, Tomáš
Alluvial and volcanic pathways to silicified plant stems (Upper Carboniferous–Triassic) and their taphonomic and palaeoenvironmental meaning.
Palaeogeography, Palaeoclimatology, Palaeoecology. Roč. 292, 1/2 (2010), s. 127-143. ISSN 0031-0182. E-ISSN 1872-616X
R&D Projects: GA AV ČR IAA300460804
Grant - others:AV ČR(CZ) KJB301110704
Institutional research plan: CEZ:AV0Z30460519; CEZ:AV0Z40320502
Keywords : Quartz * Moganite * Environment
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 2.390, year: 2010
http://dx.doi.org/10.1016/j.palaeo.2010.03.036

Various permineralized plant stems from Carboniferous, Permian, and Triassic test localities around the world have been studied by imaging and analytical tools. Microscopic techniques, hot cathodoluminescence spectroscopy, X-ray diffraction and electron microprobe analyses served to characterize miscellaneous mineral matter present. Two main permineralization pathways were distinguished: fluvial (alluvial) one and different one controlled by volcanism. The fluvial silicification of plant stems proceeded in seasonally variable climate, i.e. these fossils are significant palaeoenvironmental indicators independently on their palaeobotanic evaluation.
Permanent Link: http://hdl.handle.net/11104/0186430