Abstract
New palynological data in Muschelkalk facies of the Catalan Coastal Ranges (NE of the Iberian Peninsula)
Highlights
The evolution of Iberia during the Upper Permian and Mesozoic can be divided into three rift cycles and post-rift stages
This study aims at characterising new palynological assemblage from two outcrops located in the surroundings of Falset and Rasquera (Tarragona, Spain), contributing to better constrain the age of the Upper Muschelkalk facies of the Catalan Basin
The samples CRQ-1 to CRQ-4 in the Rasquera section contain: Aratrisporites granulatus (Klaus 1960) Playford and Dettmann 1965, Calamospora tener (Leschik) Mädler 1964, Camerosporites secatus Leschik 1956, Duplicisporites granulatus (Leschik) Scheuring 1970, Ellipsovelatisporites rugosus Scheuring 1970, Lunatisporites noviaulensis (Leschik 1956) de Jersey 1979, Microcachryidites doubingeri Klaus 1964, Microcachryidites fastidioides Klaus 1964, Ovalipollis cultus Scheuring 1970, Ovalipollis ovalis (Krutzsch 1955) Scheuring 1970, Ovalipollis pseudoalatus (Thiergart) Schuurman 1976, Palaeospongisporis europaeus Schulz 1965, Paracirculina tenebrosa Scheuring 1970, Patinasporites densus Leschik 1955, Platysaccus papilionis Potonié and Klaus 1954, Praecirculina granifer (Leschik) Klaus 1960, Striatoabieites aytugii (Visscher) Scheuring 1970, Triadispora crassa Klaus 1964, Figure 4
Summary
The evolution of Iberia during the Upper Permian and Mesozoic can be divided into three rift cycles and post-rift stages. Palynological assemblages can help to temporally constrain the age of these carbonate-shale sequences since palynomorphs are well-preserved in organic-rich facies and their remains are abundant in the study area. For the Lower Muschelkalk facies, in FigaróMontmany area (Barcelona), Solé de Porta et al [1987] studied a palynological assemblage which was dated as middle Anisian. This assemblage contains Alisporites grauvogeli, cf Latosaccus latus, Microcachryidites doubingeri, Microcachryidites fastidioides, Platysaccus reticutatus, Striatoabieites aytugii, Sulcatisporites cf reticulatus, Triadispora aurea, Triadispora crassa, Triadispora falcata, Triadispora plicata, Voltziaceaesporites heteromorpha, Alisporites sp., Aratrisporites sp., Cyclotriletes sp., Punctatisporites sp., Sulcatisporites sp., Triadispora sp., and unidentified bisaccates.
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