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Stratigraphy, palynology and organic geochemistry of the Devonian-Mississippian metasedimentary Albergaria-a-Velha Unit (Porto-Tomar shear zone, W Portugal)
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SYSNO ASEP 0367621 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Stratigraphy, palynology and organic geochemistry of the Devonian-Mississippian metasedimentary Albergaria-a-Velha Unit (Porto-Tomar shear zone, W Portugal) Author(s) Machado, G. (PT)
Franců, E. (CZ)
Vavrdová, Milada (GLU-S) SAI, RID
Flores, D. (PT)
Fonseca, P. E. (PT)
Rocha, F. (PT)
Gama Pereira, L. C. (PT)
Gomes, A. (PT)
Fonseca, M. (PT)
Chaminé, H. I. (PT)Source Title Geological Quarterly. - : Państwowy Instytut Geologiczny - ISSN 1641-7291
Roč. 55, č. 2 (2011), s. 139-164Number of pages 26 s. Publication form WWW - WWW Action International Palynological Conference of the International Commission of the Paleozoic Microflora (CIMP) Event date 13.09.2010-19.09.2010 VEvent location Warsaw-Kielce Country PL - Poland Event type WRD Language eng - English Country PL - Poland Keywords Mississippian ; Late Devonian ; Ossa-Morena Zone ; Porto-Tomar shear zone ; palynology ; organic geochemistry ; turbidite systems ; provenance ; phytoplankton Subject RIV DB - Geology ; Mineralogy CEZ AV0Z30130516 - GLU-S (2005-2011) UT WOS 000295383600005 EID SCOPUS 80052929058 Annotation The Porto-Tomar shear zone in Ossa Morena, WPortugal contain several tectonostratigraphic units developed as highly deformed low-grade metasediments. The Albergaria-a-Velha unit yielded palynomorphs indicating the early Frasnian to the Serpukhovian age and pointing together with lithostratigraphic evidence to an origin in a distal marine environment. Turbiditic and basinal marine sedimentation prevailed. Detrital framework data indicated stable cratonic sediment source area composed of low grade metamorphic rocks. Palynofacies analysis and lithostratigraphical data show a gradual increase of terrestrial output. Organic petrology and geochemical data indicate that the Albergaria- a- Velha unit can be placed within the dry gas window in terms of hydrocarbon generation ranges. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2012 Electronic address http://gq.pgi.gov.pl/gq/article/viewFile/7606/pdf_4
Number of the records: 1