Showing 261 - 280 results of 1,537 for search '"Oligocene"', query time: 0.14s Refine Results
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    Petrographic and mineral-glass chemical dataset of igneous rock clasts from Early Oligocene Aveto-Petrignacola Formation (Northern Italy) by Michele Mattioli, Michele Lustrino, Sara Ronca, Gianluca Bianchini

    Published 2020-08-01
    “…This dataset article contains petrographic and mineral-glass chemical data of igneous rock clasts from Early Oligocene Aveto-Petrignacola Formation (APF; Northern Italy). …”
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    Article
  6. 266

    Microfacies Analysis and Depositional Environment of Upper Oligocene-Lower Miocene Succession in Wadi Al-Khazgah of Anbar Governorate, Western Iraq by Aseel Mohammed, Amer Aljibouri

    Published 2023-10-01
    “… Microfacies and the Depositional Environment of (Upper Oligocene-Lower Miocene) succession in the Anah area, northwest of Anbar Governorate, western Iraq was carried out. …”
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  7. 267

    First fossil record of Alphonsea Hk. f. & T. (Annonaceae) from the Late Oligocene sediments of Assam, India and comments on its phytogeography. by Gaurav Srivastava, Rakesh C Mehrotra

    Published 2013-01-01
    “…. & T. of the family Annonaceae is described from the Late Oligocene sediments of Makum Coalfield, Assam, India. …”
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  8. 268

    UPPER OLIGOCENE BRACHIOPODS FROM NW GERMANY, WITH DESCRIPTION OF A NEW PLATIDIINAE GENUS, <em>GERMANOPLATIDIA</em> N. GEN. by ALFRÉD DULAI, FRITZ VON DER HOCHT

    Published 2020-02-01
    “…Upper Oligocene brachiopods of NW Germany were studied in two collections: the Naturalis Biodiversity Center (Leiden, the Netherlands) and the F. von der Hocht private Collection (Kerpen, Germany). …”
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  9. 269

    High-resolution molecular stratigraphy of Oligocene–Miocene sequence of Tumaco-1-ST-P well, Tumaco forearc Basin, Colombia by J. E. Cortes, A. Mejía-Molina, C. A. Vargas, S. I. Cortes

    Published 2019-04-01
    “…Toward the bottom of the column (10,000–12,000 ft), Tumaco Fm was deposited in the late Oligocene under a marine shelf environment. In the present paper, we propose a modeling approach, based on the evolution of the thermal maturity through the stratigraphic column, that at 17,000 feet depth could exist rocks with O.M. in the hydrocarbon generation window for Tumaco Basin, Colombia.…”
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  10. 270

    Salishicetus meadi, a new aetiocetid from the late Oligocene of Washington State and implications for feeding transitions in early mysticete evolution by Carlos Mauricio Peredo, Nicholas D. Pyenson

    Published 2018-01-01
    “…Here, we report a new aetiocetid, Salishicetus meadi gen. et sp. nov, from the late Oligocene of Washington State, USA. Salishicetus preserves a near-complete lower dentition with extensive occlusal wear, indicating that it processed prey using shearing cheek teeth in the same way as its stem cetacean ancestors. …”
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  11. 271

    A new Early Oligocene toothed ‘baleen’ whale (Mysticeti: Aetiocetidae) from western North America: one of the oldest and the smallest by Felix G. Marx, Cheng-Hsiu Tsai, R. Ewan Fordyce

    Published 2015-01-01
    “…To date, however, aetiocetids are almost exclusively Late Oligocene and coeval with both other toothed mysticetes and fully fledged filter feeders. …”
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    Evolution characteristic of gypsum-salt rocks of the upper member of Oligocene Lower Ganchaigou Fm in the Shizigou area, western Qaidam Basin by Dinghong Yi, Jiangong Wang, Yajun Shi, Xiujian Sun, Xinmin Ma, Peng Wang, Yanli Li

    Published 2017-09-01
    “…In the Shizigou area, western Qaidam Basin, the upper member of Oligocene Lower Ganchaigou Fm is an important target for oil and gas exploration, and gypsum-salt rocks are the high-quality caprocks for the preservation of oil and gas reservoirs in this area. …”
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    Fluid evolution and related fluid–rock interactions of the Oligocene Zhuhai sandstones in the Baiyun Sag, northern margin of the South China Sea by Bing Tian, Yihan Yuan, Jun Tang, Shanshan Zuo, Youwei Zheng, Ming Liu, Cheng Guo

    Published 2023-08-01
    “…This paper aims to relate the diagenetic processes of the Oligocene Zhuhai sandstones in the Baiyun Sag to pore fluids varying with burial depth. …”
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    Foraminiferal Biozonation of Late Eocene - Early Oligocene sediments of BC-1 well, Onshore, Western Niger Delta Basin, Nigeria by F.O. Amiewalan, J.A. Edegbai

    Published 2021-04-01
    Subjects: “…Lithostratigraphic units, Agbada Formation, Eocene, Oligocene and Biozone.…”
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    Vegetation change across the Drake Passage region linked to late Eocene cooling and glacial disturbance after the Eocene–Oligocene transition by N. Thompson, U. Salzmann, A. López-Quirós, A. López-Quirós, P. K. Bijl, F. S. Hoem, J. Etourneau, M.-A. Sicre, S. Roignant, E. Hocking, M. Amoo, C. Escutia

    Published 2022-02-01
    “…<p>The role and climatic impact of the opening of the Drake Passage and how it affected both marine and terrestrial environments across the Eocene–Oligocene transition (EOT <span class="inline-formula">∼34</span> Ma) period remains poorly understood. …”
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