Geology, geography and global energy

Scientific and Technical Journal

Mineral composition of gold-bearing titanomagnetite deposits of the south-western coast of Kamchatka

2018. №4, pp. 79-86

Kungurova V.E. - C.Sc. in Geology and Mineralogy, Leading Researcher, Research Geotechnological Center Far Eastern Branch of Russian Academy of Sciences, 30 Severo-Vostochnoye shosse, Astrakhan, 683002, Russian Federation,

In continuation of the study of the gold - bearing sediments of the South-Western coast of Kamchatka for their integrated utilization the mineral composition of the beach sediments along the section was studied. Qualitative range of minerals present in formations of abrasive, abrasive-accumulative and accumulative sites of the beach is characterized and their quantitative ratios of both the section and the area of distribution are shown. Useful components such as gold, titanomagnetite, ilmenite, grenades are concentrated in the form of enriched layers of low thickness (up to 10 cm). Gold is present in different amounts in the majority of the samples studied. Higher concentrations of gold (21-28 mg / m) were recorded in the Northern part of the studied area. The maximum gold concentration (57 mg / m) is confined to a lower part of the section on the abrasive allotments of the beach near cliff. Deposits of abrasive-accumulative beaches of the coast, often complicated by near cliff accumulative berms, are promising for the formation of multi-layered placers. The studies are carried out at X-ray powder diffractometer Rigaku Ultima (the method of corundum number).

Key words: Юго-Западное побережье Камчатки, рентгенофазовый анализ, метод корундового числа, золото, титаномагнетит, гранаты, South-Western coast of Kamchatka, X-ray phase analysis, corundum number method, gold, titanomagnetite, garnet