| Deposit ID | 10040095 |
|---|---|
| MRDS ID | M053122 |
| Record type | Site |
| Current site name | Yamato |
| Geographic coordinates: | 143.16514, 43.6692 (WGS84) |
|---|---|
| Elevation | 1100 |
| Relative position | APPROX. 8 KM E OF OMACHI |
Political divisions (FIPS codes)
Japan(country)
Asia(continent)
Land(continent)
| Country |
|---|
| Japan |
| Japan |
| Commodity | Importance |
|---|---|
| Mercury | Primary |
| Materials | Type of material |
|---|---|
| Cinnabar | Ore |
| Calcite | Gangue |
| Dolomite | Gangue |
| Illite | Gangue |
| Kaolin | Gangue |
| Marcasite | Gangue |
| Montmorillonite | Gangue |
| Pyrite | Gangue |
| Stibnite | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite |
| (1) | 143.16514, 43.6692 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Basement Anticline W/N-S Axis, E-W-Trending, Near-Vertical Faults Also Shear Zones Roughly Parallel To Faults. Ns-Trending Breccia Veins |
| General form | LENSOID |
|---|---|
| Strike | N 65 - 85 W |
| Dip | 50 - 80 DEG S |
| Thickness | 2.5M |
| Length | 140M |
| Width | 210M |
| Depth to top | 0M |
| Depth to bottom | 250M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Production years | 1939 - PRESENT |
| District name | Itomuka Mine |
|---|
| Year | 1953 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Period | 1953 | ||||||||||||||
| Material | HG | ||||||||||||||
| Accuracy | Accurate | ||||||||||||||
| Description | Cp_Grade: ^Hg = 1.9 Approx. .11 % | ||||||||||||||
| |||||||||||||||
| Type of workings | Surface/Underground |
|---|---|
| Overall depth | 20M |
| Overall length | 91.44M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M053122 |
SUGIMOTO, R., ET.AL., 1972 , "MERCURY ORE DEPOSITS OF THE ITOMUKA DISTRICT, ABASHIRI PROV. HOKKAIDO," REPORT NO. 5-2 OF THE INVESTIGATIONS FOR PROMOTION AND DEVELOPMENT OF ESSENTIAL MINERALS, HOKKAIDO GEOL. SUR. REP NO 45
USHISAWA, N., 1968 , "MATERIALS OF COMM FOR RESEARCH OF AU-AG & HG DEPOSITS CONCERNING METAMORPHISM OF THE COUNTRY ROCKS OF ITOMUKA DEPOSITS," JAPANESE MINING GEOLOGY ASSOC., HOKKAIDO BRANCH
YOSHIRO, Y, 1967 , "STUDY ON THE GEOLOGY & ORE DEPOSITS OF ITOMUKA DISTRICT," (MANUSCRIPT)
TSUKADA, F., 1959 , "PECULIARITIES OF RESEARCH AT THE ITOMUKA MINE," JAPAN MINING MAGAZINE, VOL 75 , NO. 855
SUGIMOTO ET AL
| Subject category | Comment text |
|---|---|
| Deposit | PRODUCTION FIGURES ARE FOR ALL WORKINGS AT THE ITOMUKA DEPOSIT. HOWEVER, THE GREATEST OUTPUT, BY FAR, HAS COME FROM THE YAMATO DEPOSIT. THERE ARE ALSO A FEW RESIDUAL & PLACER DEPOSITS LOCATED AT THE SURFACE NEAR THE MILL AREA, AND ALONG A MARSH WHICH OVERLIES THE DEPOSITS. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1978 | Roddy, Steve J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.