| Deposit ID | 10007916 |
|---|---|
| MRDS ID | CS00153 |
| Record type | Site |
| Current site name | Moncada Mine |
| Geographic coordinates: | -84.53187, 10.05386 (WGS84) |
|---|
Political divisions (FIPS codes)
Alajuela(province)
Costa Rica(country)
North America(continent)
Land(continent)
| Country | State |
|---|---|
| Costa Rica | Alajuela |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Gangue |
| Galena | Gangue |
| Pyrite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Sphalerite | Gangue |
| Result | SEE DEPOSIT DESCRIPTION |
|---|
| Model code | 151 |
|---|---|
| USGS model code | 25d |
| Deposit model name | Epithermal vein, Sado |
| Mark3 model number | 28 |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite | ||||
| Rock unit name | Aguacate Formation | ||||
| Rock description | Aguacate | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite |
| Rock unit name | Aguacate Formation |
| Rock description | Aguacate |
| (1) | -84.53187, 10.05386 |
|---|
| Type of structure | Local |
|---|---|
| Structure description | Post-Mineralization Faults Are Common |
| General form | VEIN |
|---|---|
| Length | 700M |
| Width | 4M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| District name | Aguacate District (Macacona District According To Cox) |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Gonzalo Moncada And Family |
| Type of workings | Surface/Underground |
|---|---|
| Length | 120M |
| Overall length | 640.08M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | CS00153 |
BENNETT, EVAN, 1939, GOLD MINING IN COSTA RICA: ENG. MIN. J., V. 140, NO. 1, P. 56-58.
GONZALO MONCADA, OWNER, ORAL COMMUNICATION, 1986.
U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.
| Subject category | Comment text |
|---|---|
| Deposit | MAJOR VEIN STRIKES N WITH SOME DEVIATION TO THE NE AND NW. VEIN INTERSECTED UNDERGROUND IN TUNNEL NO. 3, 120 M IN FROM PORTAL. FOR A LENGTH OF 18 M, THE WIDTH OF THE VEIN RANGES FROM 1.05 TO 1.6 M, AND THE ORE GRADE RANGES FROM 4.35 TO 119.12 G/T AU AND 11.63 TO 22.08 G/T AG. AU GRADE RANGES FROM 0.062 TO 64.07 G/T AU IN VERTICAL CHANNELS IN THE WALL ROCK OF THE TUNNEL FOR ABOUT 5 M ON EITHER SIDE OF THE VEIN. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1986 | Cox, Dennis P. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.