| Deposit ID | 60001100 |
|---|---|
| MRDS ID | SD00857 |
| Record type | District |
| Current site name | Ralph Quad |
| Geographic coordinates: | -103.12557, 45.85186 (WGS84) |
|---|---|
| Relative position | LONGITUDE AND LATITUDE ARE GIVEN FOR THE CENTER OF THE AREA. |
Political divisions (FIPS codes)
Harding(county)
South Dakota(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Ralph SW(quadrangle 1:24,000 scale)
Camp Crook(quadrangle 1:100,000 scale)
Lemmon(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
South Fork Grand(hydrologic unit)
Grand-Moreau(hydrologic accounting unit)
Missouri-Oahe(hydrologic subregion)
Missouri(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | South Dakota | Harding |
| Commodity | Importance |
|---|---|
| Lignite | Secondary |
| Petroleum (Oil) | Tertiary |
| Sand and Gravel, Construction | Tertiary |
| Natural Gas | Tertiary |
| (1) | Cannonball Formation |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | THE RALPH QUADRANGLE LIES ON THE SOUTHWEST FLANK OF THE DAKOTA (WILLISTON) BASIN AND IS CHARACTERIZED BY A REGIONAL DIP OF 10 FT/MI (1.89 M/KM). MINOR FAULTS AND SHALLOW FOLDS, AMPLITUDE AND DISPLACEMENT LESS THAN 20 FT (6.10 M), ARE PRESENT, BUT HAVE NO PERSISTENT STRIKE. |
| Development status | Occurrence |
|---|---|
| Commodity type | Non-metallic |
STEVENSON, ROBERT E., 1957, RALPH QUAD, SOUTH DAKOTA GEOLOGICAL SURVEY
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.