History

According to scanty archival materials, the first finds of silver-lead ores were made by Timofei Petrovich Kychkin in 1765. The chemical analysis of these ores (according to the data of the Yekaterinburg Laboratory) showed a high content of lead and silver in them.

1765 - 1779

In 1766 the Nerchinsk Provincial Chancellery sent Pentecostal Urodin in August 1768 confirmed the reliability of the discoveries of TP Kichkin.

In 1773, by order of the Berg-Collegium, the non-commissioner P. Metenev arrived in the district of the river. Endybal (Jondabyl or Pure) for the experimental mining of lead-silver ores with the help of short shafts and shallow mines. The traces of these excavations have survived to the present day in the Upper and Lower-Endibal ore occurrences and appear in reports and literature under the name "Ekaterininsky" galleries, developments or "plants".

In 1766 Nerchinsk Provincial Chancellery sent Pentecostal Urodin in August 1768 confirmed the reliability of the discoveries of TP Kichkin.

In 1773, by order of the Berg-Collegium, the non-commissioner P. Metenev arrived in the district of the river. Endybal (Jondabyl or Pure) for the experimental mining of lead-silver ores with the help of short shafts and shallow mines. The traces of these excavations have survived to the present day in the Upper and Lower-Endibal ore occurrences and appear in reports and literature under the name "Ekaterininsky" galleries, developments or "plants".

1952 - 1953

During 1952-1953 geological mapping (1:50 000) was carried out, ditch digging with systematic geological mapping and sampling, two shallow galleries (32 m) were traversed.

Also, a topographic survey was carried out at a scale of 1: 2,000 on an area of 3 m², as well as a photography of the induced polarization at a scale of 1: 5,000 on an area of 1.7 km² at the Mikhailovskaya and Kuzminskoye zones.

1960

By 1960, geological exploration work was completed within the licensed area, and more than 160 anomalies were identified from north to south with a stretch of up to 20 km. This direction is characterized by a width of 2 km in the north (the Nyuktam River) and 4.5-5 km in the south (the Endybal River).

1989

In 1989, systematic search and exploration work resumed and continues to the present.

1991 - 2003

From 1991 to 2003 Yangology performed mining operations, magnetometric survey, detailed geological mapping, geochemical studies, and core drilling.

Main events chronicle