Peculiarities of the geological structure, mineral composition of the ores, and formation conditions of the Chulbatkan gold deposit, Khabarovsk Krai
DOI: 10.47765/0869-5997-2026-10004
Keywords:
Chulbatkan, gold, gold ore deposit, Amgun-Bichin interfluve area, tellurides, reduced intrusions, Reduced Intrusion Related Gold Systems (RIRGS).Abstract
The article presents new data on the geological and structural features and mineral composition of the Chulbatkan gold deposit. Relationship between the tectonic and ore formational pro- cesses at the deposit is demonstrated: the ores are localized at intersections between the east-northeast and southeast-northwest trending fault systems. The ores of the deposit are low-sulfide (no more than 2–3% sulfides); the useful components are gold (main) and silver (associated).
The research data regarding the geological structure and mineral composition of the ores, the gas-liquid inclusions composition, and the identified ore-controlling factors allow us to assign the Chulbatkan deposit to Reduced Intrusion-Related Gold Systems (RIRGS) and to develop prospecting criteria for similar objects in the Lower Amur Region.
The authors' conclusions are the result of a complex long-standing study of the Chulbatkan deposit by specialists from the “Polyus” company and Russian leading research centers. New data on RIRGS type deposits, well-known abroad, contribute to development of studying ore deposits of this type in Russia.
