| Deposit ID | 10049010 |
|---|---|
| MRDS ID | MX00216 |
| Record type | Site |
| Current site name | Cobachi |
| Alternate or previous names | Cerro Cobachi |
| Related records | 10255023 |
| Geographic coordinates: | -110.19647, 28.82939 (WGS84) |
|---|---|
| Relative position | IN THE NORTHERN SIERRA DE COBACHI, 75 KM ESE OF HERMOSILLO NEAR THE VILLAGE OF COBACHI. |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
| Country | State |
|---|---|
| Mexico | Sonora |
| Commodity | Importance |
|---|---|
| Barium-Barite Critical | Primary |
| Materials | Type of material |
|---|---|
| Barite | Ore |
| Quartz | Gangue |
| Result | AVG. GRADE: 3.8 G/CC |
|---|---|
| Result | UPGRADED TO 4.3 G/CC BY REMOVAL OF SILICA. |
| Model code | 212 |
|---|---|
| USGS model code | 31b |
| Deposit model name | Bedded barite |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Mudstone | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Siltstone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Chemical Sediment > Chert |
| Rock unit name | Guayacan Group |
| Rock description | Guayacan Group |
| (1) | -110.19647, 28.82939 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Broad Nw Trending Fold Axis. |
| Type of structure | Local |
| Structure description | Ne Trending Folds In Lower To Mid Paleozoic Strata; Thrust And Reverse Faulting Along Sw Dipping Fault Planes; Typical Horst And Graben (Basin And Range) Style Block-Faulting. |
| General form | STRATIFORM |
|---|
| Development status | Occurrence |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Medium |
| Significant | No |
| Discovery year | 1978 |
| District name | Picacho Colorado |
|---|
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1982 | ||||||||||||||
| Total resources | 4910000mt ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MX00216 |
PEREZ SEGURA, EFREN, 1985, CARTA METALOGENETICA DE SONORA 1:250000 UNA INTERPRETACION DE LA METALOGENIA DE SONORA: UNIV. OF SONORA, DEPT. OF GEOL., HERMOSILLO, MEXICO, 66 P.
NOLL, J.H., 1981, GEOLOGY OF THE PICACHO COLORADO AREA, NORTHERN SIERRA DE COBACHI, CENTRAL SONORA, MEXICO: GSA ABSTRACTS WITH PROGRAMS, V. 13, NO. 2, P. 99.
PREGGER, B.H., 1981, A RECENTLY DISCOVERED DEVONIAN BEDDED BARITE DEPOSIT IN CENTRAL SONORA, MEXICO: GSA ABSTRACTS WITH PROGRAMS, V. 13, NO. 2, P. 101.
DAMON, P.E., CLARK, K.F., SHAFIQULLAH, M., ROLDAN Q., J., ISLAS L., J., 1981, GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN SONORA AND THE SONORAN SIERRA MADRE OCCIDENTAL (ROADLOG) IN ORTLIEB, L. AND ROLDAN Q., J., (EDS.), 1981, GEOLOGY OF NORTHWESTERN MEXICO AND SOUTHERN ARIZONA; FIELD GUIDES AND PAPERS: HERMOSILLO, MEXICO, U.N.A.M., P. 381-382.
SALAS, G.P., 1982, RECENT MINERAL DEVELOPMENTS IN THE PACIFIC METALLOGENETIC PROVINCES OF MEXICO, IN WATSON, S.T., ED., TRANSACTIONS OF THE THIRD CIRCUM-PACIFIC ENERGY AND MINERAL RESOURCES CONFERENCE, AUGUST 22-28, 1982, HONOLULU, HAWAII:
POOLE, F.G., MURCHEY, B.L., AND STEWART, J.H., 1983, MIDDLE AND UPPER PALEOZOIC BEDDED BARITES IN CENTRAL SONORA, MEXICO [ABS.]: GEOLOGICAL SOCIETY OF AMERICA ABSTRACTS WITH PROGRAMS, V. 15, NO. 5, P. 299.
GONZALEZ S., J.R., 1985, RECURSOS MINERALES NO METALICOS Y ROCAS INDUSTRIALES DEL ESTADO DE SONORA: HERMOSILLO, SONORA, DIRECCION DE MINERIA, GEOLOGIA Y ENERGETICOS, 44 P.
CIMRI
| Subject category | Comment text |
|---|---|
| Deposit | BEDDED BARITE EXHIBITING PRIMARY SEDIMENTARY TEXTURES. BARITE AVERAGES 40 M THICK AND OCCURS AS BEDS AND LENSES WITHIN SANDY CHERT AND MUDSTONE. DEPOSIT COVERS 4000 HA AREA (7.0 X 2.5 KM). DEPOSIT CONTAINS DEVONIAN (FAMENNIAN) BRACHIOPODS REPLACED BY BARITE. THE BARITE IS LIGHT GRAY, LAMINATED, AND FINE GRAINED. IN PLACES, IT FORMS ROSETTES OR CONGLOMERATES OR CEMENTS SANDSTONE. THE BEDS ARE UP TO 1 M THICK. THE DEPOSIT IS APPROXIMATELY 50 M THICK. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-1987 | Leonard, Kenneth R. (Page, Norman J.) | U.S. Geological Survey | |
| Updater | 01-APR-1988 | Leonard, Kenneth R. | U.S. Geological Survey | |
| Updater | 01-APR-1993 | Orris, Greta J. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.