Showing 41 - 60 results of 72 for search '"petrology"', query time: 0.04s Refine Results
  1. 41
  2. 42

    Geological, alteration, mineralogy and geochemical studies of the Copper deposit in the Kalatehno prospect area, northwest of Gonabad (Khorasan Razavi province) by Sedigheh Zirjanizadeh, Roohollah Miri Bydokhti

    Published 2024-10-01
    “…., (2016) and Zirjanizadeh (2015), which focus on petrology, geochemistry, mineralization, and alteration of igneous rocks northwest Gonabad and Kalatehno area. …”
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    Article
  3. 43

    CRYSTALLIZATION CONDITIONS OF OLIVINE IN DUNITES THE GULI MASSIF, SIBERIAN PLATFORM by V.A. Simonov, A.V. Kotlyarov, V.V. Sharygin, Yu.R. Vasiliev

    Published 2024-03-01
    “…Crystallization conditions of olivine in dunites of the Guli massif (Siberian Platform) are established using petrological, geochemical, mineralogical and thermobarogeochemical methods. …”
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  4. 44

    Multiple magma recharges over prolonged period ultimately trigger eruptions at Vulcano, Aeolian Islands by Marisa Giuffrida, Giuseppe Salerno, Marco Viccaro

    Published 2025-01-01
    “…SO2 data for the period January 1978 – September 2024 imply a volume of intrusive magma of ~ 26–86 × 106 m3, which is comparable to the order of magnitude of magma volumes erupted during the 1888-90 cycle. Our petrological and geochemical data suggest that shallow reservoirs have been already largely pressurized by multiple mafic injections occurred over the last century.…”
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  5. 45

    Bacterial desulphurization of coal from mine CSA Most by Fecko P., Sitavancova Z., Cvesper L., Cablik V.

    Published 2006-01-01
    “…Based on the results of bacterial leaching and petrologic analyses of the given samples, it is possible to state that the individual samples are very similar, they contain significant shares of clay materials and pyrite is predominantly represented in a framboidal form, which intergrowths into a massive form. …”
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  6. 46

    MAGNETITE-ILMENITE-SPINEL INTERGROWTHS IN AMPHIBOLE GABBRO OF THE SEREBRYANSKY KAMEN INTRUSION, CENTRAL URALS by A.V. Kozlov, V.V. Mikhaylov, S.Yu. Stepanov, V.V. Shilovskikh, N.S. Vlasenko

    Published 2022-12-01
    “…The ontogenetic features of minerals should be taken into account in petrological reconstructions.…”
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  7. 47

    Geology of the Late Carboniferous, Permian and Early Triassic basins of the Eastern Pyrenees by Josep Gisbert, Ana Simón-Muzás, Antonio Casas-Sainz, Ruth Soto

    Published 2024-12-01
    “…This previous information was complemented with new structural, petrologic and stratigraphic data. The geological map is presented together with three cross-sections, a detailed lithological description, and a stratigraphic correlation panel to help understand the stratigraphy, volcanism and structure and, ultimately, the geometry and origin of the highly subsident areas of this segment of the chain in post-Variscan times. …”
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    Article
  8. 48

    Dating volcanic materials through biochronostratigraphic methods applied to hosting strata (example from the Iberian Chain, eastern Spain) by Cortés, José Emilio

    Published 2023-06-01
    “…Precise dating of hosting carbonate sediments based on ammonite and brachiopod biochronostratigraphic method has allowed distinguishing 13 volcanic levels of different ages ranging from the early Pliensbachian to the early Bajocian. A set of petrological, geomorphological, sedimentological, and paleontological criteria are applied in order to discriminate primary from secondary (epiclastic) volcaniclastic deposits and thus make it possible to match the ages of primary volcaniclastic deposits with volcanic eruptions. …”
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  9. 49

    Constraining sulphur yields of trachytic and phonolitic volcanic eruptions: Tambora, Vesuvius, Laacher See and Campi Flegrei by Scaillet, Bruno, Oppenheimer, Clive, Cioni, Raffaello, Scaillet, Stephane,  Moussallam, Yves, Prouteau, Gaelle, Andujar, Joan

    Published 2024-12-01
    “…Here, we draw on available petrological and thermodynamical constraints, accounting for uncertainty in pre-eruptive magma redox state, to quantify pre-eruptive sulphur budgets for several prominent phonolite–trachyte eruptions. …”
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    Article
  10. 50

    Quantifying Fractal Dimension in Integrated Experimental Data of Tight Sandstones by Dazhong Ren, Rongxi Li, Dengke Liu, Yuhong Li, Na Liu, Fu Yang

    Published 2019-01-01
    “…Finally, a multifractal criterion was proposed to analyze the petrological and pore structures by combined observations and experiments. …”
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  11. 51

    REE-Nb MINERALIZATION IN TRACHYTES AND RHYOLITES OF THE KHULAM VOLCANO-PLUTONIC COMPLEX, NORTH CAUCASUS by E.N. Kaigorodova, O.A. Nabelkin, P.M. Kartashov, V.A. Lebedev

    Published 2021-12-01
    “…The igneous rocks of the Khulam Complex (intrusive and subvolcanic facies) belong to the contrasting differentiated bimodal association: (gabbro + basaltic trachyandesite) – (trachyte + rhyolite). Their main petrological and geochemical characteristics and ore mineralization are discussed. …”
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    Article
  12. 52

    Impacts of Pore-Throat System on Fractal Characterization of Tight Sandstones by Dengke Liu, Zhaolin Gu, Ruixiang Liang, Junwei Su, Dazhong Ren, Bin Chen, Chuanqing Huang, Chao Yang

    Published 2020-01-01
    “…Hence, toward this end, we analyze the experimental data that are indicative of the pore-throat system, then we investigate the effect of fractal dimensions of pore-throat structures on petrologic and physical properties, and finally, the optical observations, fractal theory, and prediction model were integrated to explore the qualities of various reservoir types in tight sandstones. …”
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  13. 53

    Study on the Relationship between Chlorite Clay Film Diagenesis and Sedimentary Facies in Reservoir Sandstones by Rui Zhang, Guangsheng Qin, Minglong Nie

    Published 2022-01-01
    “…Therefore, the better physical properties of the sandstones with the chlorite clay film in the Chang 6 Formation of the Huaqing region are related to the petrological characteristics of the sandstone deposited under strong hydrodynamic conditions and have little relation with chlorite clay film.…”
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  14. 54

    An Experimental Study on Stress Sensitivity of Tight Sandstones with Different Microfractures by Xinli Zhao, Zhengming Yang, Zhiyuan Wang, Wei Lin, Shengchun Xiong, Yutian Luo, Zhongkun Niu, Debin Xia

    Published 2020-01-01
    “…At the same time, we have studied the petrological characteristics of tight sandstone in detail using thin section (TS) and scanning electron microscope (SEM). …”
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  15. 55

    The influence of diagenesis on the quality of tight sandstone reservoirs in Longdong, Ordos Basin by Gaixia Cui, Shouyu Xu, Qinlian Wei, Yimeng Yang, Jin Hu, Tuoping He

    Published 2024-11-01
    “…The research focused on analyzing the petrological characteristics, physical properties, pore structure, and diagenesis characteristics of the reservoir in the 13th member of the Permian Shanxi Formation in the Longdong area of the southwest Ordos Basin. …”
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  16. 56

    Study on Anisotropic Petrophysical Modeling of Shale: A Case Study of Shale Oil in Qingshankou Formation in Sanzhao Sag, Songliao Basin, China by Ang Li, Liyan Zhang, Jianguo Yang, Shichao Li, Fei Xiao, Yulai Yao, Yiming Huang, Bo Liu, Longsheng Li

    Published 2023-01-01
    “…Seismic petrophysics is an important link between seismic elastic properties and reservoir physical properties. Based on the petrological and microstructure characteristics of shale in the Qingshankou formation of Sanzhao sag in the north of Songliao Basin, this paper presents an anisotropy petrophysical model with complex pore structure suitable for organic shale constructed with the use of the Voigt-Reuss-Hill average model, an anisotropy self-consistent approximation+differential effective medium model, and the layering of clay and kerogen is simulated by using the Voigt-Reuss-Hill average and bond transform to achieve the simulation of shale anisotropy. …”
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  17. 57

    New insight into the controlling factors of differences in carbonate buried-hills driven by tectonic activity: a case study of the Weixinan Sag, Beibuwan Basin, China by Yanying Li, Kongyou Wu, Jia Zhong, Yannan Du, Jinyou Wang

    Published 2025-01-01
    “…In this study, drilling cores and resistivity imaging logging data were employed to investigate the petrological characteristics and fracture development patterns of buried-hill reservoirs. …”
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  18. 58

    Early Permian to Middle Triassic Formation petroleum potentials of Sydney Basin, Australia: A geochemical analysis by Garba Terfa Elijah, Mustapha Khairul Azlan, Asiwaju Lanre, Mutari Lawal

    Published 2025-02-01
    “…The organic geochemical and petrological analyses of calculated vitrinite reflectance of the Early Permian to Middle Triassic Formation section of the Sydney Basin in Australia have revealed the source for the widely distributed oil and gas shows in the basin. …”
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    Article
  19. 59

    Sequence Stratigraphy Variation and Its Implication in Shale Oil Exploration: A Case Study of the Eocene Dongying Depression, Eastern China by Jing Wu, Wei Li, Wenjin Li, Wei Chen

    Published 2022-01-01
    “…The development mechanism of sequence stratigraphy and the influence of sequence stratigraphy on OM enrichment and carbonate deposition are investigated in this study. Based on the petrological, mineralogical, and geochemical analyses, a third-order sequence is recognized, including the lowstand systems tract (LST), transgressive systems tract (TST), and highstand systems tract (HST). …”
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  20. 60

    Formation Mechanism of “Large-Area Sweating” Water Seepage from Deep Mine Sandstone Pores by Yanzhi Li, Weiguo Qiao, Yue Wu, Xungang Li, Shuai Zhang, Xiaoli Zhang

    Published 2022-01-01
    “…Taking the deep mine sandstone in the southwest Shandong coal field, where “large-area sweating” seepage occurs, as the study object, this study examined the pore structure, petrological characteristics, physical properties, and grain sizes of the sandstone by analyzing experimental data from thin sections and scanning electron microscopy samples. …”
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