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Geology of Marwat Alimikan quartz deposits
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| Geology of Marwat Alimikan quartz deposits
Marwat Alimikan area is situated at Bernice-Aswan district in the southern part of the Eastern Desert. The quartz deposits of Marwat Alimikan area appear as intrusive bodies within the granodiorite rocks. Three quartz bodies occur as conspicuous high cones surrounded by flat surface of wadi deposit forming triangle feature. The three quartz bodies of Marwat Alimikan area are delineated by latitudes 23°52'48"–23°53'30" N and longitudes 35°06'09"–35°08'48" E (Fig.1). Quartz in the three bodies is milky white in color, jointed, fractured and stained by iron oxides along the fissures and cracks, while the entire quartz bodies are iron free. The quartz bodies vary in their height from 30 to more than 50 m and diameter from 100 to 120 m. The dimensions of the first quartz body (M 1 ) are 60m×60m×150m, which give about 1,400,000 tons. The dimensions of the second quartz body (M 2 ) are 30m×80m×120m, which give about 750,000 tons. The dimensions of the third quartz body (M 3 ) are 60m×60m×100m, which give about 950,000 tons. In general the geological resources of the three quartz bodies are about 3 million tons. Two of these quartz bodies of the area were quarried, while the third is not quarried until now. Figure 1. Geologic map of Marwat Alimikan quartz deposits, Bernice area, South Eastern Desert, Egypt /4/ Вестник КазНУ. Серия географическая. 2010, №2 (31) 32 Geochemical, thermal and petrophysical characteristics of Marwat Alimikan quartz deposits The chemical composition, thermal, and petrophysical properties of raw quartz are the most important starting investigations serving as bases for assessing both the quality of a deposit and the potential uses of the raw materials contained therein. It provides valuable results to the probable processing steps required and the potential product grades achievable. The success assessment of each individual processing step is verified by chemical analyses. The chemical analysis is the bases on which all further approaches are decided. Mineralogical examinations are required even during the course of processing, and are needed for developing target-oriented procedures to remove mineral or liquid inclusions, thereby ensuring increased purity of the product. жүктеу/скачать 16,6 Mb. Достарыңызбен бөлісу:
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