| Deposit ID | 10022105 |
|---|---|
| MRDS ID | DE01929 |
| Record type | Site |
| Current site name | Sites 88-89 |
| Geographic coordinates: | -99.94538, 33.49652 (WGS84) |
|---|---|
| Elevation | 472 |
| Location accuracy | 100(meters) |
| Relative position | GO 5.5 MI NW OF KNOX CITY TO BRIDGE OVER BRAZOS RIVER ON TEXAS HWY. 143 (OR 222). GO 4.8 MI NW ON HWY. 143 TO MCFADDIN LAKE. TURN NE ABOUT 2 MI TO WHERE ROAD CUTS THROUGH SAN ANGELO ESCARPMENT. THIS IS SITE 88. SITE 88 IS U.S. BUREAU OF MINES SAMPLE NO. RAF-11, A 4-INCH SANDSTONE, ASSAYING 0.75% CU IN LOWER SAN ANGELO. SITE 89 IS U.S. BUREAU OF MINES SAMPLE NO. RAF-12, A 5-INCH SANDSTONE, ASSAYING 0.55% CU IN LOWER SAN ANGELO. IN C-6, FROM 44.7-45.9 FT IS 1.2 FT OF SHALE (EL. 1535 FT), ASSAYING AT 0.03-0.23% CU IN LOWER SAN ANGELO. IN C-8, FROM 24.5-25.6 FT (EL. 1550 FT) IS GREEN SHALE, ASSAYING 0.07-0.58% CU IN LOWER SAN ANGELO. IN C-9, FROM 58.9-60.5 FT (EL. 1539 FT) IS GREEN SHALE, ASSAYING AT 0.19-0.28% CU IN LOWER SAN ANGELO. |
Political divisions (FIPS codes)
Knox(county)
Texas(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Knox City NW(quadrangle 1:24,000 scale)
Haskell(quadrangle 1:100,000 scale)
Wichita Falls(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Brazos-Millers(hydrologic unit)
Middle Brazos-Clear Fork(hydrologic accounting unit)
Middle Brazos(hydrologic subregion)
Texas-Gulf(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Texas | Knox |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 30 | Texas |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Materials | Type of material |
|---|---|
| Malachite | Ore |
| Sandstone | Gangue |
| Shale | Gangue |
| Result | 0.75% CU (SAMPLE 88), 4-INCH SANDSTONE |
|---|---|
| Result | 0.55% CU (SAMPLE 89), 5-INCH SANDSTONE |
| Result | 0.03-0.23% CU (C-6), 1.2-FT SHALE |
| Result | 0.07-0.58% CU (C-8), 1.1-FT SHALE |
| Result | 0.19-0.28% CU (C-9), IN 7-INCH SHALE. |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone | ||||||||
| Rock unit name | San Angelo Formation | ||||||||
| Rock description | San Angelo Formation | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Rock unit name | San Angelo Formation (Lower) |
| Rock description | San Angelo Formation (Lower) |
| (1) | -99.94538, 33.49652 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Gentle Wnw Dip Of 30 Ft/Mi Or Less Off Bend Arch |
| Name | SANDSTONE AND SHALE |
|---|---|
| General form | LENTICULAR |
| Strike | NNE |
| Dip | WNW ABOUT 30 FT/MI OR LESS |
| Thickness | 0.37M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1968 |
| Discoverer | Stroud And Others |
| District name | Benjamin Sw |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | J. L. . Mcfaddin Ranch |
| Home office | P.O. Box 2612, Beaumont, Tx 77704 |
| First year | 1970 |
| Type of workings | Surface |
|---|---|
| Name of workings | OUTCROP |
| Area | 259.008HA |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | DE01929 | |
| Oklahoma Geological Survey | OGS | OGS | TX-KNO-02 |
STROUD, R.B., MCMAHAN, A.B., STROUP, R.K., AND HIBPSHMAN, M.A., 1970, U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 7422, 103 P. (P. 41, 72-76).
SMITH, G.E., 1974, TEXAS BUREAU OF ECONOMIC GEOLOGY, REPORT OF INVESTIGATIONS 80, 84 P. (P. 65-66, PL. IV).
HENTZ, T.F., AND BROWN, L.F., JR., 1987, IN BARNES, V.E., GEOLOGIC ATLAS OF TEXAS - WICHITA FALLS-LAWTON SHEET: TEXAS BUREAU OF ECONOMIC GEOLOGY, SCALE 1:250,000.
GALLOWAY, W.E., 1970, TEXAS BUREAU OF ECONOMIC GEOLOGY, OPEN FILE REPORT 1970-6, 115 P. (P. 44, 46-47)
| Subject category | Comment text |
|---|---|
| Deposit | DEPTH TO TOP IS OUTCROP AND IN CORES 25-60 FT DEEP. |
| Deposit | THE LOWER SAN ANGELO COPPER BED IS 1.2 FT OR LESS THICK AND OCCURS OVER SEVERAL SECTIONS IN THIS AREA, BUT IT MAY BE SPORADIC. |
| Deposit | STROUD AND OTHERS (1970, P. 41) IS MAIN REFERENCE. FOR CORE HOLES C-6, C-8, C-9, REFERENCES ARE STROUD AND OTHERS (1970, P. 72-73, 74, 75-76), GALLOWAY (1970, P. 44, 46, 47), AND SMITH (1974, P. 65-66, PL. IV). THE COPPER MINERALS ARE IN THE LOWER SAN ANGELO FORMATION SANDSTONE AND SHALE. ALL SITES ARE ON THE J.L.C. MCFADDIN RANCH. SMITH (1974, P. 59, 68) MEASURED 103 FT OF CHOZA-SAN ANGELO IN THE SE SEC. 29 (MEASURED SECTION 12). THE UPPER 22 FT WAS SAN ANGELO WITH MALACHITE AT BASE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1993 | Fay, Robert O. | Oklahoma Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.