|Latitude & Longitude (WGS84):||35° 10' 0'' North , 134° 49' 30'' East|
|Latitude & Longitude (decimal):||35.16667,134.82500|
|Köppen climate type:||Cfa : Humid subtropical climate|
|Name(s) in local language(s):||生野鉱山, 兵庫県 朝来市 生野町小野|
A silver mine that was first worked in 807 AD. Large scale exploitation started in 1542, using traditional methods. The Japanese government hired a French mining engineer, Francois M Coignet, to modernize the mining methods in 1868. The Mitsubishi conglomerate acquired the mine in 1896. Mining ceased in 1973, by which time the galleries had penetrated several square kilometers of ground at depths up to 1 km. Mostly flooded by 1987.
Highly telescoped xenothermal veins are hosted in Tertiary sediments and volcanics overlying Paleozoic and Mesozoic formations. Although in ancient times silver was the only metal of interest, in more modern times this mine produced a large range of other metals too, including Cu, Zn, Pb, W, Sn, As, Au, Bi, Co.
Features the Senju-hon vein, Chuo shaft, Kanagase deposit (qv), Tasei deposit (qv).
Mitsubishi Corp. still maintains a silica plant here, and the museum with the corporation's excellent mineral collection, and one section of the Kanagase deposit is open for guided underground tourism.
Mineral ListMineral list contains entries from the region specified including sub-localities
56 valid minerals. 3 (TL) - type locality of valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Paleogene - Cretaceous|
23.03 - 145 Ma
|Mesozoic-Cenozoic volcanic and intrusive rocks|
Age: Phanerozoic (23.03 - 145 Ma)
Lithology: Intermediate-felsic volcanic rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.