Past Producer

Nanbu

Japan
Mercury
⌖ Show on mapUSGS source ↗
Commodities
SecondaryMercury
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Orebody formBULGING LENSOID
Ore controlKaolinized Zones Located Along On Echelon Shear Zones Conjugate To The Nanbu Fault Localized The Hg Ore.
Materials
Ore mineralsCinnabar
GangueCalcite, Dolomite, Illite, Kaolin, Marcasite, Montmorillonite, Pyrite, Stibnite
Geology
Host rockDacite
Associated rockDacite
StructureBasement Anticline W/Ns Axis, Ew-Trending Near Vertical Faults; Shear Zones Which Are Roughly Parallel To Faults, Brecciated Veins, With Ns Trend
AlterationPropyllization, Argillization, Carbonization, Sillicification.
Economic & production
Development statusPast Producer
Production years1967 - PRESENT
Identification
Deposit ID10040097
MRDS IDM053124
RegionAS
Data scoreB
Coordinates43.67337, 143.16514
References
SUGIMOTO, R., ET AL 1972 , "MERCURY ORE DEPOSITS OF THE ITOMUKA DISTRICT, ABASHIRI PROVINCE, HOKKAIDO," REPORT #5-2 OF THE INVESTIGATIONS FOR THE PROMOTION OF DEVELOPMENT OF ESSENTIAL MINERALS; HOKKAIDO GEOL SUR REP. NO. 23 PP. 1 - 23USHISAWA, N, 1968 , "MATERIALS OF THE COMMITTEE FOR RESEARCH OF AU-AG & HG DEPOSITS, CONCERNING METAMORPHISM OF THE COUNTRY RX OF ITOMUKA DEPOSIT," JAPAN MINING GEOLOGY ASSOC., HOKKAIDO BRANCHYOSHIRO, Y., 1967 , "STUDY ON THE GEOLOGY AND ORE DEPOSITS OF ITOMUKA DISTRICT," (MANUSCRIPT)TSUKADA, F., 1959 , "PECULIARITIES OF RESEARCH AT THE ITOMUKA MINE," JAP MINING MAG. VOL 75 NO 855SUGIMOTO ET AL, ( 1971 )