A Search-Oriented Method of Numerical Forecasting of Rare-Metal Proximal (Close-to-Source) Placers: Evidence from the Lovozero Placer District

Chefranov, R. M.; Lalomov, A. V.; Chefranova, A. V.

doi:10.1134/s1075701523020010

Cited by 3 publications

(1 citation statement)

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“…For a more accurate and detailed forecast of eluvial placers associated with LWCs, additional studies are needed to map the zones of development of supergenic changes associated with zones of disjunctive dislocations within the most promising formations. It is possible to use digital forecasting methods using the analysis of multifactor spaces and overlay techniques [64].…”

Section: Perspectives Of Discovering Of New Placers In Bodaibo Districtmentioning

confidence: 99%

Typomorphic Features and Source of Native Gold from the Sykhoi Log Area Placer Deposits, Bodaibo Gold-Bearing District, Siberia, Russia

et al. 2023

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The Bodaibo gold-bearing district in the Lena gold province of Siberia is one of the largest and oldest placer gold-bearing provinces in the world. Approximately 1650 tons of gold has been extracted from the region. Precise studies on the source of these unique placer deposits are lacking and still controversial. Native gold from four different locations was gathered to investigate its morphology, chemical signatures, structure and inclusions. Some data on primary bedrock mineralization were obtained from the published literature. The linear weathering crusts developed along the zones of disjunctive dislocations near the Sukhoi Log gold deposit were researched. If they coincided with zones of low-grade veinlet-disseminated gold–quartz–sulphide mineralization with small gold grain sizes, a supergene replacement of primary mineralization was known to have occurred, accompanied by the formation of gold-rich rims and an increase in the size, content and purity of gold. Such mineralization associated with linear weathering crusts can be a source of local eluvial–proluvial placers, while placers of large valleys are formed due to low-sulphide gold–quartz lodes.

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Section: Perspectives Of Discovering Of New Placers In Bodaibo Districtmentioning

confidence: 99%