The stratigraphy of the Campanian-Maastrichtian rudist beds of Bulgaria and a reassessment of the range of the genus Pironaea

Swinburne, Nicola H.M.; Bilotte, Michel; Pamouktchiev, A.

doi:10.1016/0195-6671(92)90035-o

Cited by 22 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hippurites colliciatus is found from the Santonian of Austria, Italy (Apennines), Yugoslavia (Dinarids), Romania, Greece and Iran (Sanchez 1981), the Campanian-Maastrichtian of the Apennines (Cestari and Sirna 1989), Carpathians (Andrusov 1976) and in Tunisia (Negra and Philip 1986), and from the Middle Campanian of Bulgaria (Swinburne et al 1992), and Maastrichian of southern Italy (Borgomano and Philip 1989). This species is also present in Upper Senonien limestones of Turkey (Karacabey 1968;Özer 1994;Steuber et al 1998;Fenerci 1999).…”

Section: Stratigraphy and Palaeontologymentioning

confidence: 99%

Presence and tectonic significance of Cretaceous rudist species in the so-called Permo-Carboniferous G�ktepe Formation, central Menderes metamorphic massif, western Turkey

Özer

Sözbi̇li̇r

2003

International Journal of Earth Sciences

View full text Add to dashboard Cite

A schist sequence of the central Menderes Massif, in which lenses of fossiliferous marbles are found, is observed in the southern flank of the Aydın Mountain, north of Köşk (Aydın), around Egrikavak village. These rocks have been considered as Permo-Carboniferous in age and are included in the Göktepe Formation of earlier studies. However, some rudist species are described from thickly bedded gray marbles that have a concordant contact with the overlying schist sequence. Although the rudists have been metamorphosed, it is observed that some contain fossils are well enough preserved to determine the following rudist fauna: Hippurites lapeirousei (GOLDFUSS), Hippurites nabresinensis FUTTERER, Hippurites cf. colliciatus WOODWARD. This rudist fauna dates the schist sequence as SantonianCampanian. The schist sequence is overlain by a thick tectonostratigraphic pile of orthogneiss which has been interpreted as the Pan-African metamorphic core of the Menderes Massif. A widespread cataclastic and mylonitic zone is present between the underlying rudist-bearing marbles and the structurally overlying orthogneiss sequence. The existing kinematic studies in the footwall and hangingwall of this tectonic contact reveal two different phases of deformations, a contractional phase followed by an extensional phase. During the contractional event, which occurred at 36 Ma, the orthogneiss sequence was thrust faulted northwards over the schist sequence. This thrust fault was later reactivated as a low-angle normal fault beneath a supradetachment sedimentary basin of Early-Middle Miocene age. The fossil discoveries of this study and the existing kinematic studies reveal that a new structural model for the central Menderes Massif in which the tectonometamorphic units form a major southward closing recumbent fold needs to be reviewed.

show abstract

Section: Stratigraphy and Palaeontologymentioning

confidence: 99%

Presence and tectonic significance of Cretaceous rudist species in the so-called Permo-Carboniferous G�ktepe Formation, central Menderes metamorphic massif, western Turkey

Özer

Sözbi̇li̇r

2003

International Journal of Earth Sciences

View full text Add to dashboard Cite

show abstract

“…Recently, this species was found in the Maastrichtian Tarbur Formation in the Zagros region in south-west Iran (Khazaei et al 2010). B. bulgaricus has been reported from the Campanian of Bulgaria (Pamouktchiev 1967;Swinburne et al 1992), Somalia (Pons et al 1992) and the Maastrichtian of Turkey (Özer 1983). The identified rudists suggest a late Campanian-Maastrichtian age.…”

Section: Inoceramid Bivalvesmentioning

confidence: 99%

Upper Campanian calciclastic turbidite sequences from the Hacımehmet area (eastern Pontides, NE Turkey): integrated biostratigraphy and microfacies analysis

Sarı¹,

Kandemir²,

Özer³

et al. 2014

Acta Geologica Polonica

View full text Add to dashboard Cite

ABSTRACT:Sari, B., Kandemir, R., Özer, S., Walaszczyk, I. Görmüş, M., Demircan, H. and Yilmaz, C. 2014. Upper Campanian calciclastic turbidite sequences from the Hacımehmet area (eastern Pontides, NE Turkey): integrated biostratigraphy and microfacies analysis. Acta Geologica Polonica, 64 (4), 393-418. Warszawa.The upper Campanian (Cretaceous) of the Hacımehmet area (south of the city of Trabzon; Eastern Pontides) is mainly composed of calciclastic turbidites. The basinal unit of the 119 m thick succession includes thin red pelagic limestone interlayers and conglomerates dominated by volcanic clasts. The overlying upper slope and lower slope units of the sequence consist of an alternation of allochthonous calcarenite/calcirudite beds and pelagic marls and mudstones. Calcarenite/calcirudite beds dominate the upper slope unit of the succession and are composed of transported material, including benthic foraminifers, red algae, bryozoan, crinoid and rudist fragments, inoceramid bivalve prisms and neritic and pelagic carbonate lithoclasts. The occurrence of Helicorbitoides boluensis (Sirel) extracted from the calcarenite/calcirudite beds indicates a Campanian age. Identifiable rudists such as Joufia reticulata Boehm, Bournonia cf. anatolica Özer, Biradiolites cf. bulgaricus Pamouktchiev and ?Biradiolites sp. from the upper slope unit of the succession indicate a late Campanian-Maastrichtian age. The planktonic foraminifers within the red pelagic limestone beds, marls and mudstones throughout the succession consist mainly of Campanian-Maastrichtian forms and suggest mainly basinal depositional conditions. The presence of Radotruncana cf. calcarata (Cushman) accompanied by Globotruncanita elevata (Brotzen) in the basinal unit of the succession indicates an early late Campanian age for the lower part of the succession. Inoceramid bivalves have been collected from the upper part of the succession. The fauna is dominated by 'Inoceramus' tenuilineatus Hall and Meek, 1854 and Cataceramus haldemensis (Giers, 1964); other taxa recognised are: 'Inoceramus' algeriensis Heinz, 1932, Platyceramus vanuxemi (Meek and Hayden, 1860), 'Inoceramus' cf. nebrascensis Owen, 1852, Cataceramus aff. barabini (Morton, 1834, Cataceramus gandjaensis (Aliev, 1956), and 'Inoceramus' sp.; the assemblage indicates the 'Inoceramus' tenuilineatus Zone; corresponding to the middle-late Campanian boundary interval. The uppermost part of the succession is characterized by the presence of the trace fossils Scolicia strozzii and Scolicia isp., indicating a mixed Skolithos-Cruziana ichnofacies. This ichnofacies suggests a well-oxygenated environment.

show abstract

“…Some specimens display well developed S pseudopillar as described by Özer (1992b) from the central Anatolia (Haymana and Salt Lake areas) and eastern Anatolia (Hekimhan area). Although, Miseia bilacunosa shows very distinct pseudopillar structure when compared with the other species of Miseia, this feature is also well known and determined in the complex species of the genus Lapeirousia like Lapeirousia plana Milovanovic (Milovanovich, 1938(Milovanovich, , 1951Pamouktchiev, 1969;Özer, 1992;Swinburne et al 1992;Plenicar, 1993). On the other hand, the primitive Lapeirousias species such as Lapeirousia aumalensis Douville, Lapeirousia zitteli Douville and Lapeirousia laskarevi Milovanovich show close resemblances with the smaller size of the valves and in the shape of the pseudopillars to Miseia bilacunosa Özer (Douvillé, 1910Özer (Douvillé, , 1915Kühn, 1932;Milovanovich, 1938Milovanovich, , 1951Klinghardt, 1944;Lupu, 1969Lupu, , 1976Pejovic, 1978;Accordi et al 1989;Plenicar, 1993;Cafau et al 1999;Steuber, 1999).…”

Section: Loftusia Morgani Douvillé 1904mentioning

confidence: 96%

Systematic paleontology, biostratigraphy, paleobiogeography of Loftusia (foraminifera) and Rudist assemblages in a regressive sequence in the Hekimhan-Malatya area (Eastern Anatolia) Turkey

Çağlar

Önal

2009

J Geol Soc India

View full text Add to dashboard Cite

The Maastrichtian regressive sequence of the Hekimhan-Malatya area in Eastern Turkey consists of dolomitic limestones, limestones and calcareous mudstones which are dominated by rudists and Loftusia (foraminifera) assemblages. Several Loftusia species indicating middle to late Maastrichtian age such as Loftusia anatolica Meriç, L. baykali Meriç, L. coxi Henson, L. harrisoni Cox, L. minor Cox and L. morgani Douvillé have been recorded. Other benthic foraminifers present include Orbitoides medius d' Archiac, Omphalocyclus macroporus (Lamarck), Laffitteina conica Drooger, Laffitteina mengaudi (Astre) and Laffitteina oeztuerki Inan. The rudists are abundant in the dolomitic limestones in the study area. The genus Miseia Patrulius is dominant and represented by Miseia bilacunosa Özer and Miseia hekimhanensis Karacabey-Öztemür. The Loftusia species and the Rudists assemblage indicates middle to late Maastrichtian age for the formation. The paleobiogeographic distribution of the assemblage has been discussed taking this find into account.

show abstract

The stratigraphy of the Campanian-Maastrichtian rudist beds of Bulgaria and a reassessment of the range of the genus Pironaea

Cited by 22 publications

References 7 publications

Presence and tectonic significance of Cretaceous rudist species in the so-called Permo-Carboniferous G�ktepe Formation, central Menderes metamorphic massif, western Turkey

Presence and tectonic significance of Cretaceous rudist species in the so-called Permo-Carboniferous G�ktepe Formation, central Menderes metamorphic massif, western Turkey

Upper Campanian calciclastic turbidite sequences from the Hacımehmet area (eastern Pontides, NE Turkey): integrated biostratigraphy and microfacies analysis

Systematic paleontology, biostratigraphy, paleobiogeography of Loftusia (foraminifera) and Rudist assemblages in a regressive sequence in the Hekimhan-Malatya area (Eastern Anatolia) Turkey

Contact Info

Product

Resources

About