Integrative Approaches in Ceramic Petrography
In: Plains anthropologist, Band 64, Heft 250, S. 211-212
ISSN: 2052-546X
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In: Plains anthropologist, Band 64, Heft 250, S. 211-212
ISSN: 2052-546X
In: International Geology Review, Band 7, Heft 7, S. 1176-1193
In: Iraqi journal of science, S. 2926-2935
ISSN: 0067-2904
Petrography and physicomechanical characteristics of Iyuku granite from southwestern Nigeria were investigated. Rock and aggregate samples were obtained from five different quarry sites for thin-sectioning and physical and mechanical tests. The rock slides were subjected to petrographic analysis, while the aggregates were tested for the parameters of specific gravity (S.G), water absorption, aggregate impact value (AIV), aggregate crushing value (ACV), Los Angeles abrasion value (LAAV), and flakiness and elongation indices in accordance with the British Standards (B.S), American Standards for Testing Materials (ASTM) and Federal Ministry of Works Standards (FMWS). The petrographic, physical, and mechanical characteristics were described by bar charts and linear graphs. The results revealed that the rocks are of medium to coarse interlocking grains, with no evidence of weathering influences, and quartz content ranging from 17% to 35%. The aggregates showed appreciable high S.G. values, very low water absorption values and low maximum permission limits for AIV, ACV and LAAV when compared with different standards. All the aggregates are adjudged to be generally strong and durable for road construction, but those with higher quartz contents are more preferable. Significant statistical correlations were established among both physical and mechanical tests conducted.
In: International Geology Review, Band 32, Heft 10, S. 997-1007
In: International Geology Review, Band 26, Heft 6, S. 635-650
In: Estonian journal of earth sciences, Band 66, Heft 3, S. 161
In: International Geology Review, Band 1, Heft 9, S. 12-18
In: International Geology Review, Band 17, Heft 4, S. 442-447
In: International Geology Review, Band 6, Heft 3, S. 478-486
In: International Geology Review, Band 27, Heft 1, S. 68-77
In: The IUP Journal of Earth Sciences, Band 4, Heft 4, S. 49-66
SSRN
In: International Geology Review, Band 23, Heft 11, S. 1282-1290
In: Iraqi journal of science
ISSN: 0067-2904
The present study deals with the petrographic investigations revealed that the sandstone of Gercus Formation the studied samples of sandstone units composed primarily of rock fragments (sedimentary, igneous and metamorphic), quartz grains (monocrystalline and polycrystalline), and feldspars (orthoclase, microcline and plagioclase). These components are cemented by carbonate and iron oxides. The studied sandstones are classified as litharenites, Sandstone rocks of Gercus Formation are chemically and mechanically unstable due to the high percentage of rock fragments ,such a grain assemblage infers that the source of the rock fragments is nearby. The petrographic analyses indicate that the studied sandstones are immature mineralogically because of high content of unstable components, such as lithic fragments and feldspars. the tectonic provenance for Gercus formation can be described as lithic recycled.
In: International Geology Review, Band 33, Heft 7, S. 689-703
In: Waste management: international journal of integrated waste management, science and technology, Band 137, S. 61-71
ISSN: 1879-2456