Showing 181 - 200 results of 1,380 for search '"Oligocene"', query time: 0.20s Refine Results
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    Apatites Record Sedimentary Provenance Change 4–5 Myrs Before Clay in the Oligocene/Miocene Alpine Molasse by Julian Hülscher, Edward R. Sobel, Niklas Kallnik, J. Elis Hoffmann, Ian L. Millar, Kai Hartmann, Anne Bernhardt

    Published 2022-06-01
    “…We investigate the sedimentary provenance of the Oligocene/Miocene Upper Austrian Northern Alpine Foreland Basin and its response to the tectonically driven exhumation of the Tauern Window metamorphic dome (28 ± 1 Ma) in the Eastern European Alps by using the unprecedented combination of Nd isotopic composition of bulk-rock clay-sized samples and partly previously published multi-proxy (Nd isotopic composition, trace-element geochemistry, U-Pb dating) sand-sized apatite single-grain analysis. …”
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    Diagenesis and reservoir quality of Oligocene Barail Group of Upper Assam Shelf, Assam and Assam Arakan basin, India by Deepsikha Bhuyan, Pradip Borgohain, Debojit Bezbaruah

    Published 2022-06-01
    “…The Oligocene Barail deltaic sandstones are the main oil reservoirs in Upper Assam Basin. …”
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  6. 186

    Organic-walled dinoflagellate cyst biostratigraphy of the upper Eocene to lower Oligocene Yazoo Formation, US Gulf Coast by M. A. De Lira Mota, G. Harrington, T. Dunkley Jones

    Published 2020-01-01
    “…In the new age model the section is significantly older than previously thought, by up to 1&thinsp;Ma, with the Eocene-Oligocene boundary (<span class="inline-formula">∼33.89</span>&thinsp;Ma) placed <span class="inline-formula">∼34</span>&thinsp;m below the level previously identified. …”
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  7. 187

    Early Oligocene—Late Miocene Wildfire History in the Northern Tibetan Plateau and Links to Temperature-Driven Precipitation Changes by Yunfa Miao, Hong Chang, Lin Li, Feng Cheng, Carmala Garzione, Yongheng Yang

    Published 2022-03-01
    “…In this study, 251 microcharcoal samples from the Huatugou section in the western Qaidam Basin are used to reconstruct the early Oligocene-middle Miocene wildfire history of the northern Tibetan Plateau. …”
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  8. 188

    The first hyaenodont from the late Oligocene Nsungwe Formation of Tanzania: Paleoecological insights into the Paleogene-Neogene carnivore transition. by Matthew R Borths, Nancy J Stevens

    Published 2017-01-01
    “…Fossil bearing deposits in the Nsungwe Formation in southwestern Tanzania are precisely dated to ~25.2 Ma (late Oligocene), preserving a late Paleogene Afro-Arabian fauna on the brink of environmental transition, including the earliest fossil evidence of the split between Old World monkeys and apes. …”
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  9. 189

    Estimation of the Ambient Temperatures during the Crystallization of Halite in the Oligocene Salt Deposit in the Shulu Sag, Bohaiwan Basin, China by Xianfu Zhao, Yanjun Zhao, Mingquan Wang, Yufei Hu, Chenglin Liu, Hua Zhang

    Published 2022-03-01
    “…The centimeter-scale halite rhythmites in the first member of the Shahejie Formation in the Shulu Sag of the Bohai Bay Basin are investigated, and the Eocene to early Oligocene paleoenvironmental characteristics of a typical saline lake basin are restored by reconstructing the temperature and compositional information of ancient brines. …”
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    New craniodental material of the typotherian notoungulates from the upper Oligocene of Mendoza, central-western Argentina and their taxonomical importance by SANTIAGO HERNÁNDEZ DEL PINO, FEDERICO D. SEOANE, ESPERANZA CERDEÑO

    Published 2022-12-01
    “…Among the great diversity of Oligocene mammals from Quebrada Fiera (Mendoza Province, Argentina), three families of typotherian notoungulates are very abundant. …”
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    The Upper Oligocene of Montgat (Catalan Coastal Ranges, Spain): New age constrains to the western Mediterranean Basin opening by D. Parcerisa, D. Gómez-Gras, E. Roca, J. Madurell i Malapeira, J. Agustí Ballester

    Published 2007-01-01
    “…The Oligocene deposits of Montgat are integrated in a small outcrop made up of Cenozoic and Mesozoic rocks located in the Garraf-Montnegre horst, close to the major Barcelona fault. …”
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    Reconstruction of the depositional sedimentary environment of Oligocene deposits (Qom Formation) in the Qom Basin (northern Tethyan seaway), Iran by Safari Amrollah, Ghanbarloo Hossein, Mansoury Parisa, Esfahani Mehran Mohammadian

    Published 2020-08-01
    “…During the Rupelian–Chattian, the Qom Basin (northern seaway basin) was located between the Paratethys in the north and the southern Tethyan seaway in the south. The Oligocene deposits (Qom Formation) in the Qom Basin have been interpreted for a reconstruction of environmental conditions during deposition, as well as of the influence of local fault activities and global sea level changes expressed within the basin. …”
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    Exploring the effect of oligocene elongation on photovoltaic, optoelectronic and charge transfer properties in TPA dyes tethered to the semiconductor surface by Ahmad Irfan

    Published 2019-06-01
    “…By incorporation and elongation of oligocene spacer between donor and acceptor, electronic structures, photovoltaic and optoelectronic properties were tuned. …”
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