Showing 121 - 140 results of 144 for search '"Geochemistry"', query time: 0.05s Refine Results
  1. 121

    The Role of Microfabric and Laminae on Pore Structure and Gas Transport Pathways of Marine Shales from Sichuan Basin, China by Yi Shu, Shang Xu, Feng Yang, Zhiguo Shu, Pan Peng, Senxin Huang, He Zhen

    Published 2020-01-01
    “…This study investigated the effects of microfabric and laminae on the pore structure and gas transport pathways of the Silurian Longmaxi shales from Sichuan Basin. 23 shale samples with varied lithofacies were comprehensively investigated by mineralogy, organic geochemistry, pycnometry, and low-pressure nitrogen adsorption analysis. …”
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  2. 122

    Shale Heterogeneity in Western Hunan and Hubei: A Case Study from the Lower Silurian Longmaxi Formation in Well Laidi 1 in the Laifeng-Xianfeng Block, Hubei Province by Peng Zhang, Junwei Yang, Yuqi Huang, Jinchuan Zhang, Xuan Tang, Chengwei Liu

    Published 2022-01-01
    “…The shale’s heterogeneity is analyzed based on shale mineral rocks, microslices, geochemistry, and low-temperature N2 adsorption-desorption. …”
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  3. 123
  4. 124

    Relationship between Tectonism and Composition and Pore Characteristics of Shale Reservoirs by Fuhua Shang, Yanming Zhu, Haitao Gao, Yang Wang, Ruiyin Liu

    Published 2020-01-01
    “…To explore the relationship between tectonism and composition and pore characteristics of shale reservoirs, this research carried out mineralogy tests, organic geochemistry tests, field emission scanning electron microscopy (FE-SEM) experiments, and low-pressure gas adsorption (LPGA, N2 and CO2) experiments on the shale samples of various deformation intensities from Southwestern China. …”
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  5. 125

    Pore Preservation and Failure Mechanism of Sinian Dengying Formation Carbonate Reservoirs: A Case Study of Two Ultradeep Wells in the Sichuan Basin, Western China by Zeqi Li, Wei Sun, Shugen Liu, Zhiwu Li, Bin Deng, Juan Wu, Yi Ding, Kun Jiao, Xin Jin, Pengda Lu, Tengzhen Tian

    Published 2021-01-01
    “…This study performed thin-section, geochemistry, field emission scanning electron microscopy, fluid inclusion, and basin model analysis of samples from two boreholes over 8,000 m deep in the Sichuan Basin to determine the pore features and preservation mechanism of the Sinian (Ediacaran) Dengying Formation carbonate reservoirs. …”
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  6. 126

    Early Devonian Slab Melting of the Proto-Tethys Ocean: Insights from Adakitic Granitoids in the Jiayuguan Area, Hexi Corridor (NW China) by Qigui Mao, Wenjiao Xiao, Rui Li, Songjian Ao, Dongfang Song, Miao Sang, Hao Wang, Zhou Tan

    Published 2024-12-01
    “…In order to further constrain this issue, we explore geology, chronology, geochemistry, and isotopes of three newly discovered Early Devonian adakitic granitoids of the Jiayuguan complex in the North Qilian orogen, NW China. …”
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  7. 127

    Multiple Controls on the Accumulation of Organic-Rich Sediments in the Besa River Formation of Liard Basin, British Columbia, Canada by Jiyoung Choi, Hyun Suk Lee, Yuri Kim, Omid H. Ardakani, Sung Kyung Hong

    Published 2021-01-01
    “…High-resolution elemental geochemistry of three long continuous cored intervals of the Besa River Formation was used to better understand the paleodepositional environment of organic-rich intervals in this thick marine shale. …”
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  8. 128
  9. 129

    Influence of quartz types on mechanical parameters in the early silurian Longmaxi shale, Sichuan Basin by Qin Zhang, Feng Liang, Qun Zhao, Wen Liu, Weiliang Kong, Wanli Gao, Xinyu Zhang, Guangyin Cai, Tianquan Qu, Zhen Qiu

    Published 2024-12-01
    “…After systematic analysis of organic geochemistry, mineral composition, cathodoluminescence observation, major/trace elements, and log interpretation and calculation of shale mechanical parameters, the genetic mechanism of quartz was analyzed and the percentage of quartz of different origins and the influence on rock mechanical properties were evaluated quantitatively. …”
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  10. 130

    Tracing Aquatic Macrophyte Development in Nansi Lake, Northern China's Largest Freshwater Lake: Plant Macrofossils From 1855 to Present by Qinghui Zhang, Yufei Wu, Liwei Yang, Zekun Li, Zonglei Li, Yuying Yang, Shiyue Chen, Enfeng Liu

    Published 2025-01-01
    “…Multiple factor analysis was employed to investigate the correlation between these shifts and changes in paleolimnological indicators (invertebrates, geochemistry, and grain size), as well as documented records related to hydrology, climate changes, and human activities. …”
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  11. 131

    Lithological and geochemical characterization of ‘adinole’ artefacts from cave deposits in southwest Wales: A material of choice during the late Middle to Upper Palaeolithic by Richard Bevins, Elizabeth A. Walker, Nick Pearce, Duncan Pirrie, Rob Ixer, Ian Saunders, Matthew Power

    Published 2025-03-01
    “…Twenty-three artefacts previously identified as being manufactured from adinole, a fine-grained metasomatic rock, from late Middle to Upper Palaeolithic cave sites in southwest Wales have been re-examined in terms of their petrology and geochemistry. Standard petrography has been combined with automated SEM-EDS analysis for a single artefact to determine the mineralogy and textures of that artefact, while portable XRF and μXRF have been combined to establish the geochemical characteristics of all twenty-three artefacts analysed. …”
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  12. 132

    Insights on the Permian tuff beds from the Saint-Affrique Basin (Massif Central, France): an integrated geochemical and geochronological study by Poujol, Marc, Mercuzot, Mathilde, Lopez, Michel, Bourquin, Sylvie, Bruguier, Olivier, Hallot, Erwan, Beccaletto, Laurent

    Published 2023-01-01
    “…Artinskian, $290.1\pm 0.26$ to $283.5\pm 0.6~\mathrm{Ma}$). The elemental geochemistry, the presence of inherited detrital zircons and the Hf signatures of the volcanic ones indicate the involvement of an old (Proterozoic and older) basement in the magma genesis; this crustal contribution becomes more prominent towards the top of the sedimentary succession.…”
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  15. 135

    Water–rock interaction in the geothermal systems related to post-collision zone volcanism: A case study based on multivariate statistical analysis from the Kavak geothermal field (... by Gündüz, Mesut, Bozdağ, Ayla, Bayram, Ali Ferat, Bozdağ, Ali, Asan, Kürşad, Sardini, Paul

    Published 2023-12-01
    “…In this study, we re-evaluate the published data, including water chemistry and volcanic and metamorphic whole-rock geochemistry from the Kavak geothermal field (Konya, Turkey) by using multivariate statistical analysis (e.g. factor analysis and clustering analysis) to research possible interaction between the thermal waters and surrounding rocks.The Kavak geothermal field (KGF) overlies a metamorphic basement composed of the Paleozoic metacarbonates and metaclastic rocks, yet is located near the Erenlerdağ–Alacadağ volcanic complex (ErAVC). …”
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  19. 139

    Fractal Characteristics of Pore Structure of Longmaxi Shales with Different Burial Depths in Southern Sichuan and Its Geological Significance by Manping Yang, Yanyan Pan, Hongye Feng, Qiang Yan, Yanjun Lu, Wanxin Wang, Yu Qi, Hongjian Zhu

    Published 2024-12-01
    “…We used two groups of Longmaxi samples, outcrop shale and middle-deep shale, to investigate the pore structure fractal features at varying burial depths using a combination of mineralogy, organic geochemistry, scanning electron microscopy (SEM), and low-temperature gas (CO<sub>2</sub>, N<sub>2</sub>) adsorption. …”
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  20. 140

    PRA Melting-ICE Project: Svalbard 2022 Expeditions Report [version 1; peer review: 2 approved] by Enrico Maiero, Elisa Baldrighi, Riccardo Cerrato, Delia Segato, Massimiliano Vardè, Mauro Mazzola, Iain Rudnik, James Bradley, Margaret Cramm, Angelina Cordone, Stefano Caliro, Donato Giovannelli, Francesco Montemagno, Carlo Cardellini, Martina Cascone, Elena Manini, Jacopo Pasotti

    Published 2024-12-01
    “…During these expeditions, a total of eight different sites were selected to investigate the microbiology and geochemistry of soils, as well as to estimate the gas fluxes from the soil to the atmosphere. …”
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