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The article presents the results of a study of the material composition of psammite sediments located near the Thoroughbred creek on Askold Island (the Great Peter Bay, Sea of Japan). The sediments are stacked (in wt.%) quartz 58, microcline 14, orthoclase 9, albite 10, kaolinite 5 and amphiboles (actinolite, hornblende) 2, which is close to the composition of the bedrock (biotite-hornblende granites and plagiogranites). The bedrock located next to the sediments. The different granulation of the grains (for example, quartz) indicates a mixed genesis of the sands (alluvial-deluvial). And the partial development of these sediments for gold allows them to be classified as technogenic. The material composition of psammite sediments corresponds to arkose sands. The nature of the behavior of rare earth and trace elements in them indicates the weathering of granites in a humid environment with the formation of a small number of new stable minerals in the form of kaolinite. There is also an enrichment of Ti, U, Pb, Zr and Hf in arkose sands, compared with granites. The presence of ilmenite, zircon and metaothenite control the enrichment of the above elements. Arkose sands are characterized as essentially quartz lithogenic rocks formed in the passive margin. The heavy fraction is about 4 wt.% psammite material. It contains hematite, magnetite, ilmenite, titanite, zircon, monazite, xenotime, metaothenite and gold. The main share is accounted for by iron and titanium minerals. Conditioned contents were found only for gold (0.5 g/t), elevated contents ‒ for silver (0.5 g/ t) and titanium oxide (0.9 wt.%). Gold is present only in its native form. The maximum particle size reaches 750 microns. The particles contain impurities of silver, iron, copper and tantalum. The content of gold itself in the particles varies from 82.7 to 100 wt.%. The studied sediments may be of interest to the construction industry (in addition to raw materials for gold), since the sediments contain a lot of silica (more than 80 wt.%) and few harmful impurities.