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23161
Petrográfica y Geoquímica de la dolomía hospedante de una mineralización de Zn y Pb. Puesto Gregor, Neuquén, Argentina Petrography and geochemistry of a Zn- Pb mineralization hoste...
Published 2008-07-01“…The hypogenic mineralization, mainly sphalerite, low quantities of galena, pyrite and marcasite is found within the small fractures. Some ghosts of fossils are still visible, but pervasive dolomitization characterizes the horizon. …”
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23162
Palynostratigraphy of the Shemshak and Dalichai formations boundary, north of Semnan and its paleogeographic significance
Published 2024-09-01“…It contains diverse biota such as plant fossils (e.g., Sadeghi and Hashemi 2021), and ammonites (e.g., Seyed-Emami et al. 2020). …”
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23163
Revision in nomenclature and classification of the Neogene marl deposits: A case study from south and southeast of Tehran
Published 2022-09-01“…The origin of these marls are mostly salty lakes and they do not contain marine fossils. They are often red to reddish and pea colored. …”
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23164
Evaluation of bacterial glycerol dialkyl glycerol tetraether and <sup>2</sup>H–<sup>18</sup>O biomarker proxies along a central European topsoil transect
Published 2020-02-01“…<p>Molecular fossils, like bacterial branched glycerol dialkyl glycerol tetraethers (brGDGTs), and the stable isotopic composition of biomarkers, such as <span class="inline-formula"><i>δ</i><sup>2</sup>H</span> of leaf wax-derived <span class="inline-formula"><i>n</i></span>-alkanes (<span class="inline-formula"><i>δ</i><sup>2</sup>H</span><span class="inline-formula"><sub><i>n</i>-alkane</sub></span>) or <span class="inline-formula"><i>δ</i><sup>18</sup>O</span> of hemicellulose-derived sugars (<span class="inline-formula"><i>δ</i><sup>18</sup>O</span><span class="inline-formula"><sub>sugar</sub></span>), are increasingly used for the reconstruction of past climate and environmental conditions. …”
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23165
Ancient Modeling of Hydrology Based on Comparison of δo18 Carbonate and the δo13 Crbonate Parishan Lake (Fars Province) Dariush Noorollahi M.Sc Climatology University of Shahid B...
Published 2012-12-01“…Among the studies, many researchers have considered the Carbon (C13/C12), Oxygen, (O18/O16) Hydrogen (H2/H) and Nitrogen (N29/N28) which remain effects on the organic (plants and animals) and inorganic (water, soils, rocks, fossils,…) material (Griffiths, 1998, p47). In order to study the Carbon and Oxygen stable isotopes of the lake carbonates, recognizing the effective factors on the isotope's value and identifying the relationship between the isotope values is essential. …”
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23166
On the nomenclatural status of type genera in Coleoptera (Insecta)
Published 2024-03-01“…More than 4700 nominal family-group names (including names for fossils and ichnotaxa) are nomenclaturally available in the order Coleoptera. …”
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