Coordinates: 50°56'30 N and 136°28'30 E / 50°54'40 N 136°30'40 E / 50°56'05 N 136°31'15 E / 50°54'50N 136°28'50 E In the Eastern Asian Mesozoic Folding Zone, Eastern part of the Khingan-Okhotsky Volcanic Belt, at the intersection of the major Sikhote Alin - Mongol-Okhotsk tectonic systems and within the western part of the Sikhote Alin geanticlinal and silicate system, coinciding with the NE junction of the Badzhalsky anticlinal lifting with the Gorin downfold Left shore of the Amur, in the basins of the Silinki and Gorin tributaries.
The youngest units of the area cover sequences of Neogene basalts and complexes of unconsolidated deposits of Quaternary age.
From a geological perspective mineralisation is located in the northern diorite exocontact of the Hurmulinsk volcanic-plutonic structure of a central ring type in a metamorphic transition zone from rocks characterized by biotite to chlorite grade.
These rocks are intruded by Late Cretaceous acidic and intermediate intrusions including quartz dioritic porphyrites.
Oxidized ores 9.4% (in C1+C2 resources) Minerals: cassiterite, chalcopyrite, arsenopyrite, wolframite, pyrite, cellular-pyrite Non-metallics: quartz-tourmaline, carbonates, chlorite, sericite.
85-90% of tin is presented by cassiterite, mainly quartz associated and is concentrated in lower structural floor – Jurassic sandstone and shale: Cassiterite in developed sulphide mineralization in upper floor of cretaceous volcanites is corroded by sulphides forming stannite and hydro-stannite.
In late 2012 a Moscow-based company, Zaibaikalskaya Gornorundnaya Kompaniya, using a commercial trading name "Sable Tin Resources", acquired the Sobolinoye License at a State Auction.