Results 21 to 30 of about 511 (177)

Investigating bio-events and time expansion of Calcareous nannofossils in the upper part of the Gurpi Formation and lower part of the Pabdeh Formation, northwestern Shiraz [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2020
In this study, calcareous nannofossils are investigated in the upper part of the Gurpi Formation and lower part of the Pabdeh Formation at the Par-e Nobar section located in the northwest of Shiraz. The thickness of the studied section is about 41 m. The
Saeedeh Senemari, Behzad Saeedi razavi
doaj   +1 more source

Last occurrence of Abathomphalus mayaroensis (Bolli) foraminiferid index of the Cretaceous–Paleogene boundary: the calcareous nannofossil proof

Geologica Carpathica, 2015
In the Gaj section (Polish Carpathians, Skole Nappe, Ropianka Formation), the Late Maastrichtian calcareous nannofossil biostratigraphy is compared with foraminiferal zonation based on the occurrence of the planktonic foraminiferid index species ...
Kędzierski Mariusz, Gasiński M. Adam, Uchman Alfred   +2 more
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Calcareous nannofossil assemblage in paintings chalk ground for provenance analysis: three original paintings compared to european source materials

Heritage Science, 2023
Chalk has been used since Antiquity for various purposes, and since Gothic for preparatory layers of painted cultural heritage objects. Several materials are called chalk in Cultural Heritage, but this work especially focuses on chalk composed of ...
Victory Armida Janine Jaques, Katarína Holcová   +1 more
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Biostratigraphy and Paleoenvironmental Reconstruction at the Gebel Nezzazat (Central Sinai, Egypt): A Paleocene Record for the Southern Tethys

Geosciences, 2022
The variations in assemblages of calcareous nannofossils are tracked in the Dakhla and Tarawan Formations exposed at Gebel Nezzazat (central Sinai, Egypt). Five calcareous nannofossil biozones, namely NP2/3, NP4, NP5, NP6, and NP7/8 are identified.
Atef M. Kasem, Mahmoud Faris, Luigi Jovane, Taysir Abdelhamid Ads, Fabrizio Frontalini, Amr S. Zaky   +5 more
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NANNOFOSSIL EVENTS AND STRATIGRAPHY OF THE ILAM FORMATION IN ZAGROS (SW IRAN)

Rivista Italiana di Paleontologia e Stratigrafia, 2014
Exploration studies of Cretaceous system in the Zagros region are very important due to the presence large hydrocarbon fields like the Ab-Teymur oilfield.
SAEEDEH SENEMARI, MARYAMNAZ BAHRAMMANESH TEHRANI, FATEMEH MOHAMMADI   +2 more
doaj   +1 more source

Calcareous nannoplankton fluctuation within the Albian-Cenomanian Boundary Event of the Tethyan Himalaya

Frontiers in Earth Science
A hemipelagic succession 29m thick, situated in South Tibet within the Tethyan Himalaya tectonic unit, has been investigated for its calcareous nannofossil content. A total of 17 samples were subject to qualitative and semi-quantitative analysis.
Mihaela Melinte-Dobrinescu, Mihaela Melinte-Dobrinescu, Xi Chen, Eliza Anton, Vlad Apotrosoaei, Vlad Apotrosoaei, Hanwei Yao   +6 more
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The Rupelian–Chattian transition in the north-western Transylvanian Basin (Romania) revealed by calcareous nannofossils: implications for biostratigraphy and palaeoenvironmental reconstruction

Geologica Carpathica, 2018
Sediments belonging to the Oligocene Vima Formation (located in the north-western part of the Transylvanian Basin, Romania) have been investigated for calcareous nannofossils content.
Kallanxhi Mădălina-Elena, Bălc Ramona, Ćorić Stjepan, Székely Szabolcs-Flavius, Filipescu Sorin   +4 more
doaj   +1 more source

CALCAREOUS NANNOFOSSILS BIOSTRATIGRAPHY OF JADDALA FORMATION IN WELL (AJEEL-10), CENTRAL IRAQ

Bulletin of the Iraq Natural History Museum, 2021
A detailed systematic study of calcareous nannofossils was carried out for the Jaddala Formation in (Aj-10) well, Central Iraq. Seventy one species belong to twenty four genera of calcareous nannofossils were identified including sixty two of them were ...
Israa Sabah Al-Nuaimi, Omar Ahmed Al-Badrani   +1 more
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CRETACEOUS MICROFOSSIL (FORAMINIFERA AND CALCAREOUS NANOFOSSILS) ASSEMBLAGES FROM THE SUBSURFACE MAGALLANES BASIN, TIERRA DEL FUEGO ISLAND, CHILE

Publicación Electrónica de la Asociación Paleontológica Argentina, 2020
Foraminifera and calcareous nannofossils were studied in washed drill-cuttings of three wells from the Chilean sector of the Magallanes Basin. This contribution aims to identify, characterize and illustrate microfossil assemblages throughout the ...
Jens Michael Thissen, Juan Pablo Pérez Panera   +1 more
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Oligocene turbidite fans of the Dukla Basin: New age data from the calcareous nannofossils and paleoenvironmental conditions (Cergowa beds, Polish–Slovakian borderland)

Geologica Carpathica, 2019
Calcareous nannofossils found in the Cergowa beds of the Dukla and Fore-Dukla tectonic units in the Outer Carpathians indicate a time of deposition in the range of the NP23–NP24 nannoplankton zones of the Lower Oligocene.
Pszonka Joanna, Žecová Katarína, Wendorff Marek   +2 more
doaj   +1 more source