| Deposit ID | 10093894 |
|---|---|
| MRDS ID | W701771 |
| Record type | Site |
| Current site name | Kochbulak Deposit |
| Geographic coordinates: | 70.50072, 40.99821 (WGS84) |
|---|
Political divisions (FIPS codes)
Tajikistan(country)
| Country |
|---|
| Tajikistan |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Copper | Secondary |
| Lead | Secondary |
| Zinc Critical | Secondary |
| Iron | Secondary |
| Antimony Critical | Secondary |
| Bismuth Critical | Tertiary |
| Manganese Critical | Tertiary |
| Tellurium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Altaite | Ore |
| Argentite | Ore |
| Bismutite | Ore |
| Bournonite | Ore |
| Calaverite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Gold | Ore |
| Hessite | Ore |
| Huebnerite | Ore |
| Jamesonite | Ore |
| Marcasite | Ore |
| Petzite | Ore |
| Plagionite | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Sylvanite | Ore |
| Tennantite | Ore |
| Tetradymite | Ore |
| Tetrahedrite | Ore |
| Barite | Gangue |
| Calcite | Gangue |
| Quartz | Gangue |
| Sericite | Gangue |
| Result | GOLD PARTICLES RANGE FROM PREDOMINANTLY POWDERY TO .2 MM. FINENESS FROM 849-85. GOLD OCCURS AS DENDRITIC AND AMORPHOUS. |
|---|
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Associated |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate) |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite |
| Rock unit name | Akcha Group |
| Rock description | Akcha Group |
| (1) | 70.50072, 40.99821 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Tyan'-Shan' Hercynian Fold System |
| Type of structure | Local |
| Structure description | Massif, Dikes, Autobreccia |
| Name | FOURTH ZONE |
|---|---|
| General form | LENS |
| Strike | SUBLATITUDINAL} |
| Dip | 30-65 DEGREES NW}STEEPLY DIPPING JOINTS |
| Thickness | 10M |
| Length | 3000M |
| Width | 500M |
| Name | LARGEST DISCORDANT ZONE |
|---|---|
| General form | LENS |
| Strike | SUBLATITUDINAL} |
| Dip | 30-65 DEGREES NW}STEEPLY DIPPING JOINTS |
| Length | 1000M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W701771 |
SMIRNOV, V.I., 1977, ORE DEPOSITS OF THE USSR, VIII, P. 18-19
| Subject category | Comment text |
|---|---|
| Deposit | A SYSTEM OF BANDED TO COCKADE VEINS, VEINLETS, AND ZONES OF SILICIFICATION. ONE FRACTURE CONTROLLED MAJOR ORE ZONE, "THE FOURTH ZONE" (CONFORMABLE WITH STRATIFIED COUNTRY ROCKS) CONTAINS NINE ORE BODIES CONFINED TO JOINTS. THE LARGEST DISCORDANT ORE ZONE ( LOCATED IN THE WESTERN PART OF THE DEPOSIT) INCLUDES A SYSTEM OF STEEPLY DIPPING JOINTS FILLED WITH QUARTZ VEINS AND VEINLETS. STEEPLY DIPPING DISCORDANT BODIES ARE MORE ECONOMIC THAN THE GENTLY DIPPING DISCORDANT BODIES WHICH HAVE MORE COMPLICATED STRUCTURE AND UNEVENLY DISTRIBUTED GOLD. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-1990 | Paidakovich, Matthew E. | U.S. Geological Survey | |
| Updater | 01-JUL-1993 | Moyer, Lorre A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.