FORMATION AND DEVELOPMENT PROSPECTS OF PLACER GOLD DEPOSITS IN SOUTHERN JUNGGAR
ОҢТҮСТІК ЖОҢҒАРИЯДАҒЫ ШАШЫРАНДЫ АЛТЫН КЕН ОРЫНДАРЫНЫҢ ҚАЛЫПТАСУЫ МЕН ДАМУ ПЕРСПЕКТИВАЛАРЫ
ФОРМИРОВАНИЕ И ПЕРСПЕКТИВЫ РАЗВИТИЯ РОССЫПНЫХ МЕСТОРОЖДЕНИЙ ЗОЛОТА ЮЖНОЙ ЖОНГАРИИ
Zholtayev G.Zh. Rassadkin V.V. Umarbekova Z.T. Mashrapova M.A. Miniskul S.D.
2026National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2026#2026Issue 1396 - 412 pp.
The article examines the formation processes and prospects for further development of placer gold deposits within Southern Junggar. Particular attention is given to the geological–structural and gold-bearing characteristics of unconsolidated sediments formed during different geological epochs, ranging from the Late Cretaceous to the Late Quaternary. The study is based on an integrated analysis of geological, geomorphological, lithostratigraphic, and mineralogical data, as well as the results of field observations, sampling, and sample processing. Based on the combined dataset, several age stages of placer formation are identified, including the Late Cretaceous, Neogene, and the Early, Middle, Late Quaternary stages. It is shown that placer formation was controlled by the tectonic evolution of the region, the intensity of denudational processes, and the conditions of sediment accumulation and reworking. Among the identified stages, Late Quaternary alluvial deposits are of the greatest interest for future exploration and evaluation activities, as they provide the most favorable conditions for placer gold concentration and are characterized by a relatively high degree of preservation of the valuable component. The bedrock gold sources of the region are characterized by a complex internal structure and have undergone significant supergene alteration, which has resulted in the predominance of fine and very fine gold fractions in placer deposits. This feature substantially affects the efficiency of traditional exploration, sampling, and sample-processing methods and necessitates adjustments to existing methodological approaches for resource assessment of such deposits. Based on the study of gold mineralization in the Mesozoic–Cenozoic unconsolidated deposits of Southern Junggar, the region is considered highly prospective for the discovery and development of new industrial placer gold deposits. The obtained results substantiate the relevance of further geological exploration activities, taking into account the identified geological and mineragenetic features, and may be applied in the forecasting and assessment of gold-bearing areas within the region.
alluvial sediments , fine-grained gold , gold-bearing potential , Late Quaternary stage , placer gold deposits , primary sources , Southern Junggar , supergene processes , unconsolidated sediments
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Institute of geological sciences named after K.I. Satbayev, Almaty, Kazakhstan
AK Altynalmas JSC, Almaty, Kazakhstan
Institute of geological sciences named after K.I. Satbayev
AK Altynalmas JSC
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026