Konomai mines (Kohnomai mine), Monbetsu (Mombetsu), Hidaka Province, Hokkaido, Japan
|Latitude & Longitude (WGS84):||44° 7' 0'' North , 143° 20' 30'' East|
|Latitude & Longitude (decimal):||44.11667,143.34167|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
A prolific gold and silver mine, started in 1917. Production reached a peak in 1954 (3 tons Au per year), then declined and the mine was closed in 1973. (1958 production: 2.7 t Au, grade 6.4g/t; 39.1 t Ag, grade 94g/t.) Currently best known to collectors for its well-crystallized post-mining iron sulfates.
24 valid minerals.
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
|Mesozoic - Late Paleozoic|
66 - 358.9 Ma
|Paleozoic-Mesozoic sedimentary rocks|
Age: Phanerozoic (66 - 358.9 Ma)
Lithology: Sedimentary 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.