Results 51 to 60 of about 127,546 (339)
Comprehensive Investigation of Neolithic Ceramic Samples: Firing Technology and Age Insights
East European Journal of Physics, 2023 Thermogravimetric (TG/DTG), thermoluminescence (TL), and X-ray powder diffraction (XRD) techniques were applied to characterize samples collected from the archaeological site of Polutepe in Azerbaijan, dating to the Neolithic period, and gave new ...
Sahib Mammadov, Aybeniz Ahadova
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Complex examination of the Upper Paleozoic siliciclastic rocks from southern Transdanubia, SW Hungary—Mineralogical, petrographic, and geochemical study [PDF]
, 2007 A vertical section of Upper Paleozoic sandstones from southern Transdanubia (Mecsek-Villány area, Tisza mega-unit, Hungary) has been analyzed for major and trace elements, including rare earth elements (REEs).
Á +35 more
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Selective flotation of K-feldspar from Na-feldspar in alkaline environment
Minerals Engineering, 2019 In this study, a selective flotation process for the separation of K-feldspar from Na-feldspar was developed for the beneficiation of a Norwegian microcline-quartz pegmatite sample.
E. Larsen +3 more
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Deep Underground Science and Engineering, EarlyView.Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
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Pseudo-two-girdles c-axis fabric patterns in a quartz-feldspar mylonite (Costabona granodiorite, Canigo massif) [PDF]
, 2012 An example of the relationship that exist between the preferred crystaliografic orientation of quartz grains and the attitude of the mylonite foliation of quartz-feldspar mylonites is described. These rocks are the result of the inhomogeneous deformation
Casas Tuset, Josep Maria
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Deep Underground Science and Engineering, EarlyView.Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang +4 more
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The Effects of Mixed Source Fertilizer Application on Vertisol Fertility and Growth of Mustard [PDF]
Journal of Tropical Soils, 2017 Soil fertility is a crucial factor determining the growth and yield of plants. The increase of nutrient content and availability in soil can be achieved by fertilization.
Jauhari Syamsiyah +4 more
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Zircon dissolution in a ductile shear zone, Monte Rosa granite gneiss, northern Italy [PDF]
, 2008 The sizes, distributions and shapes of zircon grains within variably deformed granite gneiss from the western Alps have been studied. Zircon shows numerous indicators of a metamorphic response in both the host gneiss and a 5 cm wide continuous ductile ...
Dal Piaz +14 more
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Deep Underground Science and Engineering, EarlyView.Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang +6 more
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Düzce Üniversitesi Bilim ve Teknoloji DergisiFeldspar is used as an important raw material in the ceramic, porcelain, and glass industries and as afilling material in the welding electrode, rubber, plastic, and paint industries.
Fahriye Öğüt, Adnan Kenar
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