Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)

Thanetian-early Ypresian (middle Ilerdian) limestones from the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey) contain rich benthic foraminiferal assemblage. Ilerdian beds of the Büyükkırtepe formation are characterized by high diversity of the following Alveolina...

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Main Authors: Muhittin Görmüş, Alper Bozkurt
Format: Article
Language:English
Published: General Directorate of Mineral Research and Exploration 2021-04-01
Series:Bulletin of the Mineral Research and Exploration
Subjects:
Online Access:https://dergipark.org.tr/tr/pub/bulletinofmre/issue/56453/740944
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author Muhittin Görmüş
Alper Bozkurt
author_facet Muhittin Görmüş
Alper Bozkurt
author_sort Muhittin Görmüş
collection DOAJ
description Thanetian-early Ypresian (middle Ilerdian) limestones from the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey) contain rich benthic foraminiferal assemblage. Ilerdian beds of the Büyükkırtepe formation are characterized by high diversity of the following Alveolina species: Alveolina (Glomalveolina) karsica, A. (G.) aff. karsica, A.(G.) lepidula, A.(G.) cf. subtilis, A. (Alveolina) aragonensis, A. (A.) cemali, A. (A.) corbarica, A. (A.) cf. coudurensis, A.(A.) decipiens, A.(A.) dedolia, A.(A.) ellipsoidalis, A.(A.) erki, A.(A.) guidonis, A.(A.) cf. ilerdensis, A.(A.) montanarii, A.(A.) moussoulensis, A.(A.) pasticillata, A.(A.) pisella, A.(A.) rotundata kazancii, A.(A.) trempina, A.(A.) varians, and A.(A.) vredenburgi. In this study, 30 different Alveolina species including two new species and a new subspecies namely as A. (A.) acari n. sp., A. (A.) ozbahcensis n. sp., and A.(A.) avsari fusunae n. ssp. were identified for the first time. Besides, some probable new subspecies that were unnamed yet due to the insufficient number of individuals were also defined and proposed. Despite having close stratigraphic distributions with coeval assemblages described in different regions of Tethyan Province, Alveolina assemblages of the study area exhibit some stratigraphical range differences and present SBZ 3-SBZ 8 biozone intervals. The obtained data show that the study area was a lagoon to low en rgy shallow marine paleoenvironment with normal salinity in Thanetian – middle Ilerdian interval.
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spelling doaj.art-c728eb67fca842da98f2d94db0b123ab2023-02-15T16:19:18ZengGeneral Directorate of Mineral Research and ExplorationBulletin of the Mineral Research and Exploration0026-45632021-04-0116416418322910.19111/bulletinofmre.74094476Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)Muhittin Görmüş0Alper Bozkurt1Ankara University Faculty of Engineering, Department of Geological Engineering, Ankara, TurkeyGeneral Directorate of Mineral Research and Exploration, Dept. of Geological Researches, Ankara, TurkeyThanetian-early Ypresian (middle Ilerdian) limestones from the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey) contain rich benthic foraminiferal assemblage. Ilerdian beds of the Büyükkırtepe formation are characterized by high diversity of the following Alveolina species: Alveolina (Glomalveolina) karsica, A. (G.) aff. karsica, A.(G.) lepidula, A.(G.) cf. subtilis, A. (Alveolina) aragonensis, A. (A.) cemali, A. (A.) corbarica, A. (A.) cf. coudurensis, A.(A.) decipiens, A.(A.) dedolia, A.(A.) ellipsoidalis, A.(A.) erki, A.(A.) guidonis, A.(A.) cf. ilerdensis, A.(A.) montanarii, A.(A.) moussoulensis, A.(A.) pasticillata, A.(A.) pisella, A.(A.) rotundata kazancii, A.(A.) trempina, A.(A.) varians, and A.(A.) vredenburgi. In this study, 30 different Alveolina species including two new species and a new subspecies namely as A. (A.) acari n. sp., A. (A.) ozbahcensis n. sp., and A.(A.) avsari fusunae n. ssp. were identified for the first time. Besides, some probable new subspecies that were unnamed yet due to the insufficient number of individuals were also defined and proposed. Despite having close stratigraphic distributions with coeval assemblages described in different regions of Tethyan Province, Alveolina assemblages of the study area exhibit some stratigraphical range differences and present SBZ 3-SBZ 8 biozone intervals. The obtained data show that the study area was a lagoon to low en rgy shallow marine paleoenvironment with normal salinity in Thanetian – middle Ilerdian interval.https://dergipark.org.tr/tr/pub/bulletinofmre/issue/56453/740944alveolinabiostratigraphypaleoenvironmenteoceneisparta.
spellingShingle Muhittin Görmüş
Alper Bozkurt
Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)
Bulletin of the Mineral Research and Exploration
alveolina
biostratigraphy
paleoenvironment
eocene
isparta.
title Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)
title_full Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)
title_fullStr Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)
title_full_unstemmed Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)
title_short Systematics, biostratigraphy and paleoenvironmental investigation of early Ypresian Alveolina assemblages in the northern part of Isparta Angle (Keçiborlu, Isparta, SW Turkey)
title_sort systematics biostratigraphy and paleoenvironmental investigation of early ypresian alveolina assemblages in the northern part of isparta angle keciborlu isparta sw turkey
topic alveolina
biostratigraphy
paleoenvironment
eocene
isparta.
url https://dergipark.org.tr/tr/pub/bulletinofmre/issue/56453/740944
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