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<br />discontinuity clusters from the main part of the quarry. This fault was exposed during <br />the 2006 investigation, and is noted by a distinct pegmatite vein that is surrounded by <br />decomposed weak biotite rich gneiss. The dip of the fault zone is unknown at this time, <br />but it is anticipated that we will obtain more information on the structural character of <br />this feature as the mining progresses. <br />The granitic gneiss found in the quarry is generally hard and relatively competent. The <br />' <br />gneiss varies in color from grayish orange to dark gray, with occasional banding visible <br />along the foliation of the rock. The term foliation refers to the realignment of minerals <br />' into a parallel orientation as a result of the intense heat and/or pressure of <br />metamorphism. The rock mass tends to be weakest along the foliation planes, which <br />' ultimately results in a discontinuity set parallel to the orientation of the foliation. The <br />foliation orientation is the most prominent discontinuity set identified in the quarry and is <br />' readily visible in the east and west walls. The rock foliations undulate in a synclinal and <br />anticlinal fashion, with noticeable variation in dip angles across each wall. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />