fabric analysis
fabric analysis Analysis of the elements that make up the fabric of a rock to determine the response of that rock to stress. In a rock the three-dimensional pattern comprising the distribution, shape, size, and size distribution of crystals or grains constitutes the fabric, e.g. bedding in sedimentary rocks, or metamorphic banding (see GNEISS). Fabric analysis is important in engineering because, for example, rock strength parallel to banding can differ markedly from that perpendicular to banding. In soils, fabric is analysed by comparing the strength of an undisturbed sample with its strength when remoulded; this describes the sensitivity of the soil.
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Gneiss , Gneiss
Gneiss (pronounced "nice") is a metamorphic rock consisting mostly of quartz and feldspar and showing distinct layering or banding. The layeri… Iron Ores , Rocks
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The term country rock refers to a body of rock that receives or hosts an intrusion of a viscous geologic material. Intrusions into count… Metamorphic Rocks , Metamorphic rock is rock that has changed from one type of rock into another. The word metamorphic (from Greek) means “of changing form.” Metamorphic…
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fabric analysis