Showing 61 - 80 results of 327 for search '"quartz"', query time: 0.05s Refine Results
  1. 61

    An Analysis of Relationship between the Microfracture Features and Mineral Morphology of Granite by Meiben Gao, Tianbin Li, Junxun Zhu, Hongyu Yin, Yongyi Yang

    Published 2021-01-01
    “…The results showed that feldspar, quartz, and biotite are the main components of the granite samples in this study. …”
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    Article
  2. 62

    Genesis of the Longmendian Ag–Pb–Zn Deposit in Henan (Central China): Constraints from Fluid Inclusions and H–C–O–S–Pb Isotopes by Xinglin Chen, Yongjun Shao, Chunkit Lai, Cheng Wang

    Published 2020-01-01
    “…Based on vein crosscutting relations, mineral assemblages, and paragenesis, the mineralization can be divided into three stages: (1) quartz–pyrite, (2) quartz–polymetallic sulfides, and (3) quartz–carbonate–polymetallic sulfides. …”
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  3. 63
  4. 64

    Genesis of the Daping Gold Deposit in the Middle Xuefeng Mountain Area, Southern China: Constraints from Geochemistry, Fluid Inclusion, and H-O-S Isotope by Xu Kong, Wen-Tian Mi, Xue-Yuan Qi, Shu-Jun Lǚ, Yu-Jun Dong, Jie Xin

    Published 2022-01-01
    “…Four stages of mineralization/alteration were identified: the first stage has mineral assemblages of quartz+pyrite+arsenopyrite±carbonate minerals, the second stage has mineral assemblages of quartz+polymetallic sulfide minerals (pyrite, arsenopyrite, chalcocite, galena, chalcopyrite, tetrahedrite)±chlorite±carbonate minerals, the third stage has mineral assemblages of quartz and carbonate minerals, and the supergene stage is characterized by limonite±patina which were formed by the oxidation of metal sulfides. …”
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    Article
  5. 65

    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
    “…Quartz exists as disseminated, veins, veinlets and crystalline (milky quartz and amethyst) in rock units and is accompanied by mineralization in the Kalatehno area. …”
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    Article
  6. 66
  7. 67

    The Possibilities of Applying QCM Method in Pulsed Mode for Investigating the Adsorption Dynamics of Volatile Compounds on Finely Dispersed Sorbents by Aleksei P. Filippov

    Published 2012-05-01
    “…In this study, the possibilities of applying quartz crystal microbalance (QCM) method in pulsed mode for investigating the adsorption dynamics of volatile compounds on finely dispersed sorbents is shown. …”
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    Article
  8. 68

    Estimation of influence of uniflow closed-bottom thimbles on subshrinking liquidation by E. V. Ivanov, A. V. Olenchenko, M. E. Kontanistov, A. I. Nosovets

    Published 2002-02-01
    “…There is developed the technology of steel cast at MNLZ- 3 with protection of metal stream against secondary oxidation in zone flushing bowl-crystallizer through closed-bottom quartz immersible thimbles. At cast of cord steel grades at MNLZ- 3 the application of closed-bottom quartz immersible thimbles of type SKSB-79 enabled to decrease the density of metal- oxide impurities with diameter 5,5 mm by 29 %, and Significance subshrinking liquidation by 14,2 and 25 %.…”
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    Article
  9. 69

    Spectroscopic Analysis for Harnessing the Quality and Potential of Gemstones for Small and Medium-Sized Enterprises (SMEs) by Imtiaz Ahmad, Suhail H. Serbaya, Ali Rizwan, Malik Sajjad Mehmood

    Published 2021-01-01
    “…In this regard, four natural gemstones Quartz, Pyrope-Almandine Garnet, Black tourmaline, and Amethyst brought from Hunza valley Pakistan were analyzed by state-of-the-art spectroscopic techniques including EDX, UV-VIS, and FTIR spectroscopy. …”
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    Article
  10. 70

    SUPPLEMENTARY TO THE COMPOSITION OF THE URAL BERYLS AND INCLUSIONS OF SYNGENETIC MINERALS IN THEM by V.I. Popova, V.A. Popov, M.A. Rassomakhin

    Published 2023-12-01
    “…The syntaxy of mica, quartz and gahnite with beryl is revealed for the first time.…”
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    Article
  11. 71

    Mineralogical Characteristics of Phosphate Tailings for Comprehensive Utilization by Song Mao, Qin Zhang

    Published 2021-01-01
    “…The main gangue minerals are quartz, dolomite, calcite, a small amount of potassium feldspar, plagioclase, chlorite, etc. …”
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    Article
  12. 72

    Fluid Inclusions and H-O-C-S Isotopes of the Wushan Copper Polymetallic Deposit in the Suizao Area, Hubei Province: Implications for Ore Genesis by Pan-Pan Niu, Shao-Yong Jiang, Suo-Fei Xiong, Qi-Sheng Hu, Tian-liang Xu

    Published 2019-01-01
    “…The mineralization of Wushan copper polymetallic deposit is mainly composed of ore-bearing quartz veins and quartz stockworks. Two hydrothermal stages are identified as the quartz-sulfide stage (early stage) and the barren quartz stage (late stage). …”
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  13. 73

    Fluid Inclusions and C-H-O-S-Pb Isotope Systematics of the Changfagou Deposit, Jilin Province, Northeast China by Bo Peng, Bile Li, Jun Chen

    Published 2018-01-01
    “…According to the mineral paragenetic association and its various relationships, the hydrothermal mineralization can be divided into 4 metallogenic stages from early to late: stage I is K-feldspar-quartz-magnetite, stage II is quartz-molybdenite, stage III is quartz-chalcopyrite (polymetallic sulfide), and stage IV is carbonate. …”
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    Article
  14. 74

    Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh by Zerin Binte Alam, Kazi A. B. M. Mohiuddin

    Published 2022-10-01
    “…For instance, quartz was found in the dust of dust collectors while road dust of the CI showed the existence of both quartz and cristobalite. …”
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  15. 75
  16. 76

    DISTRIBUTION OF TRACE ELEMENTS IN GROWTH ZONES AND SECTORS OF SPODUMENE CRYSTALS (PASHKI DEPOSIT, NURISTAN, AFGHANISTAN) by M.A. Ivanov, N. Hamdard, S.G. Skublov, V.V. Smolensky

    Published 2024-06-01
    “…We studied an early generation spodumene crystal from blocky spodumene-quartz-albite pegmatite and two late generation spodumene crystals including an euhedral crystal from a quartz core of pegmatite and a crystal extracted from a mineralized cavity together with quartz crystal, albite, and muscovite. …”
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  17. 77

    Geology of the Tabakoto gold deposit, Kédougou-Kéniéba Inlier, West African Craton, Mali by Diallo Mahamadou, Salvi Stefano, Baratoux Lenka, Béziat Didier, Vanderhaeghe Olivier, Labou Ibrahima, Baratoux David, Ly Saïdou

    Published 2024-01-01
    “…The second gold-bearing V3a quartz-carbonate veins are located in the NE-SW and NW-SE trending faults of the DT3 deformation event. …”
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  18. 78

    Mineralization and metallogenic model of the Laurani high-sulfidation epithermal deposit in northeastern Bolivian Altiplano by Fei Liu, Runsheng Han, Shuming Wen, Dong Zhao, Wenyao Li, Li Lei, Chaojian Qin, Yuxinyue Guo

    Published 2024-12-01
    “…Additionally, the well-developed quartz–alunite–barite tends to be found along or in close proximity to the hydrothermal vein-style orebodies. …”
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  19. 79

    Alteration, mineralization, geochemistry and fluid inclusion investigations in Joftrud prospect area, southwest of Birjand by Omid Shareipour, Azadeh Malekzadeh Shafaroudi, Maryam Javidi Moghaddam

    Published 2024-12-01
    “…These LV inclusions show salinities between 11.1–13.4 wt.% NaCl equivalent in quartz of stage1 and 15.9–19 wt.% NaCl equivalent in quartz of satage-2. …”
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  20. 80

    Optimal Proportion of Similar Materials and Rockburst Tendency of White Sandstone by Chaoyi Ma, Zhengguo Zhu, Zhichun Fang, Zhaobin Li, Liu Liu

    Published 2021-01-01
    “…To explore the tendency of rockburst, a similar material ratio was optimised based on white sandstone. Quartz sand, iron powder, gypsum, cement, retarder, and a water-reducing agent were used as the main materials. …”
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