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Cretaceous-Paleogene boundary problem in Libya : the occurrence of the foraminiferal species Abathomphalus mayaroensis (Bolli) in the Western Sirt Basin
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Cretaceous-Paleogene boundary problem in Libya : the occurrence of the foraminiferal species Abathomphalus mayaroensis (Bolli) in the Western Sirt Basin
Bibliographic description
| title: | Cretaceous-Paleogene boundary problem in Libya : the occurrence of the foraminiferal species Abathomphalus mayaroensis (Bolli) in the Western Sirt Basin |
| author: | Tshakreen Sefau Omar, Gasiński Marian 
|
| journal title: | Geological Quarterly |
| volume: | 48 |
| issue: | 1 |
| date of publication : | 2004 |
| pages: | 77-82 |
| ISSN: |
1641-7291 |
| eISSN: |
2082-5099 |
| URL: | |
| date accessed: |
2018-10-29 |
| notes: | Bibliogr. s. 82. Autor podpisany: M. Adam Gasiński |
| language: | English |
| journal language: | English |
| abstract in English: | The position of the K/P boundary in wells in the Western Sirt Basin of Libya is problematic. The biostratigraphic definition of the K/P boundary in the subsurface is based on the extinction of the eponymous taxon of the standard latest Maastrichtian foraminiferal Abathomphalus mayaroensis Zone. We have unambiguously recognised this taxon from the Sirt Basin subsurface sections for the first time. All the latest Maastrichtian foraminiferal assemblages are dominated by planktonic foraminiferids. Some of specimens are pyritised, indicating organic flux to the basin floor, causing oxygen deficiency in the depositional environment. The occurrence of characteristic bathypelagic and some epipelagic species indicates that the environment of deposition is outer shelf-middle continental slope. |
| keywords in English: | Libya, Western Sirt Basin, Cretaceous/Paleogene (K/P), foraminiferids, palaeobathymetry, oxygen deficiency deposits |
| affiliation: | Wydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznych |
| type: | journal article |
| subtype: | academic paper |
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Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 3.0 Polska
Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
