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Early Middle Frasnian platform reef strata in the Moravian Karst interpreted as recording the atmospheric dust changes: the key to understanding perturbations in the punctata conodont zone
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SYSNO ASEP 0323037 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Early Middle Frasnian platform reef strata in the Moravian Karst interpreted as recording the atmospheric dust changes: the key to understanding perturbations in the punctata conodont zone Title Interpretace časně středofrasnských vrstev útesových plošin v Moravském krasu ohledně záznamu změn v atmosférickém prachu: klíč k pochopení neobvyklých výkyvů uvnitř konodontové zóny punctata Author(s) Hladil, Jindřich (GLU-S) RID, SAI
Koptíková, Leona (GLU-S) RID, SAI
Galle, Arnošt (GLU-S) SAI
Sedláček, Václav (GLU-S)
Pruner, Petr (GLU-S) RID, SAI, ORCID
Schnabl, Petr (GLU-S) RID, SAI, ORCID
Langrová, Anna (GLU-S) RID, SAI
Bábek, O. (CZ)
Frána, Jaroslav (UJF-V)
Hladíková, J. (CZ)
Otava, J. (CZ)
Geršl, M. (CZ)Source Title Bulletin of Geosciences. - : Česká geografická společnost - ISSN 1214-1119
Roč. 84, č. 1 (2009), s. 75-106Number of pages 32 s. Publication form www - www Language eng - English Country CZ - Czech Republic Keywords mineral dust ; platform reef ; stromatactis ; Devonian ; Alamo impact Subject RIV DB - Geology ; Mineralogy R&D Projects IAAX00130702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA300130702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30130516 - GLU-S (2005-2011) AV0Z10480505 - UJF-V (2005-2011) UT WOS 000264709300009 EID SCOPUS 69349087815 DOI 10.3140/bull.geosci.1113 Annotation The early Middle Frasnian stratigraphic interval was selected for this study in order to assess the contribution of atmospheric dust and to distinguish between the robust climatically driven anomalies and the potential distant effect of the Alamo impact. The methodology employed for undertaking this research was based on succession and combination of the following steps: biostratigraphy and facies analysis, magnetic susceptibility (MS), gamma-ray spectrometry (GRS), instrumental neutron activation analysis (INAA), and finally, separation and assessment of rare non-carbonate particles. The principal results are: refinement of the bow-shaped MS pattern for the E-MF, separation of climatically driven fluctuations from the catastrophic-event-triggered perturbations, defining the crisis and non-crisis duality in MS to eustasy relationships, estimates of Frasnian (Devonian) mineral dust burden, and correlation of stromatactis with reduced carbonate production. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2009
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