New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm
The Eocene Jahrum Formation in High Zagros was studied in Kuh-e- Soukhteh and North Gahrou sections (southwest of Shahrekord region, Chahar-mahal Bakhtiari Province). This formation, composed of limestone, marl, and dolomitic limestone (dolostone), accumulated on a marine platform within the Neo-Tet...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | BSGF - Earth Sciences Bulletin |
| Subjects: | |
| Online Access: | https://www.bsgf.fr/articles/bsgf/full_html/2023/01/bsgf210014/bsgf210014.html |
| _version_ | 1797938460911206400 |
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| author | Babazadeh Seyed Ahmad Cluzel Dominique |
| author_facet | Babazadeh Seyed Ahmad Cluzel Dominique |
| author_sort | Babazadeh Seyed Ahmad |
| collection | DOAJ |
| description | The Eocene Jahrum Formation in High Zagros was studied in Kuh-e- Soukhteh and North Gahrou sections (southwest of Shahrekord region, Chahar-mahal Bakhtiari Province). This formation, composed of limestone, marl, and dolomitic limestone (dolostone), accumulated on a marine platform within the Neo-Tethys ocean realm. It yields a rich foraminiferal fauna, in which three larger benthic foraminiferal assemblage zones were identified. Two assemblage zones in the North Gahrou section were correlated to the Ypresian and Bartonian, and one assemblage zone is represented in the Kuh-e- Soukhteh section and assigned to the Bartonian. In addition, three other groups of benthic foraminiferal associations have been identified based on test wall type (porcellaneous, agglutinate, hyaline) and paleogeographical significance. A discontinuity marked by a hiatus from Cuisian to Lutetian in the North Gahrou section was most probably due to a concealed fault. According to microscopic textures and distribution of benthic foraminifera and other components (peloids, intraclasts, etc.), a gentle depth gradient from the inner ramp to the proximal outer ramp may be reconstructed. |
| first_indexed | 2024-04-10T19:01:06Z |
| format | Article |
| id | doaj.art-5143d314036f45f18de31a019f7ea0b7 |
| institution | Directory Open Access Journal |
| issn | 1777-5817 |
| language | English |
| last_indexed | 2024-04-10T19:01:06Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | BSGF - Earth Sciences Bulletin |
| spelling | doaj.art-5143d314036f45f18de31a019f7ea0b72023-01-31T09:46:21ZengEDP SciencesBSGF - Earth Sciences Bulletin1777-58172023-01-01194110.1051/bsgf/2022016bsgf210014New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realmBabazadeh Seyed Ahmad0https://orcid.org/0000-0003-4619-0586Cluzel Dominique1Department of Sciences, Payame Noor UniversityInstitut de Sciences Exactes et Appliquées, Université de la Nouvelle-CalédonieThe Eocene Jahrum Formation in High Zagros was studied in Kuh-e- Soukhteh and North Gahrou sections (southwest of Shahrekord region, Chahar-mahal Bakhtiari Province). This formation, composed of limestone, marl, and dolomitic limestone (dolostone), accumulated on a marine platform within the Neo-Tethys ocean realm. It yields a rich foraminiferal fauna, in which three larger benthic foraminiferal assemblage zones were identified. Two assemblage zones in the North Gahrou section were correlated to the Ypresian and Bartonian, and one assemblage zone is represented in the Kuh-e- Soukhteh section and assigned to the Bartonian. In addition, three other groups of benthic foraminiferal associations have been identified based on test wall type (porcellaneous, agglutinate, hyaline) and paleogeographical significance. A discontinuity marked by a hiatus from Cuisian to Lutetian in the North Gahrou section was most probably due to a concealed fault. According to microscopic textures and distribution of benthic foraminifera and other components (peloids, intraclasts, etc.), a gentle depth gradient from the inner ramp to the proximal outer ramp may be reconstructed.https://www.bsgf.fr/articles/bsgf/full_html/2023/01/bsgf210014/bsgf210014.htmlstratigraphymicrofacieslarger foraminiferajahrum formationhigh zagroswest iran |
| spellingShingle | Babazadeh Seyed Ahmad Cluzel Dominique New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm BSGF - Earth Sciences Bulletin stratigraphy microfacies larger foraminifera jahrum formation high zagros west iran |
| title | New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm |
| title_full | New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm |
| title_fullStr | New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm |
| title_full_unstemmed | New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm |
| title_short | New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran). A carbonate platform within the Neo-Tethys oceanic realm |
| title_sort | new biostratigraphy and microfacies analysis of eocene jahrum formation shahrekord region high zagros west iran a carbonate platform within the neo tethys oceanic realm |
| topic | stratigraphy microfacies larger foraminifera jahrum formation high zagros west iran |
| url | https://www.bsgf.fr/articles/bsgf/full_html/2023/01/bsgf210014/bsgf210014.html |
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