| Deposit ID | 10068812 |
|---|---|
| MRDS ID | W002070 |
| Record type | Site |
| Current site name | Rio Challana Placers |
| Geographic coordinates: | -67.91618, -15.58106 (WGS84) |
|---|---|
| Relative position | MIDDLE CHALLANA RIVER, UPSTREAM FROM GUANAY, AND 10 KMS S OF TIPUANI |
Political divisions (FIPS codes)
La Paz(province)
Bolivia(country)
South America(continent)
Land(continent)
Federal lands
Federal(land status)
| Country | State |
|---|---|
| Bolivia | La Paz |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Result | SPARSE SURFACE SAMPLING VALUES IN CANGALLI CONGLOMERATE 3.6 GMS/CU YD, IN RIVER GRAVELS 0.93 GM/CU YD. |
|---|
| Model code | 119 |
|---|---|
| USGS model code | 39a |
| Deposit model name | Placer Au-PGE |
| Mark3 model number | 54 |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Unconsolidated Deposit > Gravel | ||
| Rock unit name | Cangalli Formation Conglomerates | ||
| Rock description | Cangalli Formation Conglomerates | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate |
| (1) | -67.91618, -15.58106 |
|---|
| General form | CHANNEL |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| District name | Guanay, Northeastern Foothills |
|---|
| Ownership category | Federal |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W002070 |
FREYDANCK, H. G., 1964, PRELIMINARY REPORT ON EXPLORATION ACTIVITIES IN THE GOLD REGION NORTH OF LA PAZ, BOLIVIA, DEPTO. NAC. GEOL., BOLIVIA
| Subject category | Comment text |
|---|---|
| Deposit | CANGALLI CONGLOMERATE ALONG TIPUANI RIVER TO THE NORTH WERE NOTORIOUSLY RICH. THIS UNIT STRIKES SSE AND PROBABLY EXTENDS TO CHALLANA RIVER DRAINAGE SYSTEM. SPARSE SURFACE SAMPLING INDICATES VALUES IN THE CANGALLI CONGLOMERATE TO BE 3.6 GMS/YD3, AND GRAVELS IN RIVER TO BE 0.93 GM/YD3 ; INFO.SRC : 2 UNPUB REPT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1973 | Irving, Earl M. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.