| Deposit ID | 10048644 |
|---|---|
| MRDS ID | MP00248 |
| Record type | Site |
| Current site name | Unnamed Pge Occurrence |
| Geographic coordinates: | -77.60302, 39.02142 (WGS84) |
|---|---|
| Elevation | 91 |
| Location accuracy | 1000(meters) |
| Relative position | ABOUT 4 MI SOUTH OF LEESBURG, Estimated Within Area Where Samples Were Collected |
Political divisions (FIPS codes)
Loudoun(county)
Virginia(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Leesburg(quadrangle 1:24,000 scale)
Frederick(quadrangle 1:100,000 scale)
Baltimore(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Potomac-Catoctin(hydrologic unit)
Potomac(hydrologic accounting unit)
Potomac(hydrologic subregion)
Mid Atlantic(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Virginia | Loudoun |
| Commodity | Importance |
|---|---|
| Platinum Critical | Primary |
| Palladium Critical | Primary |
| Copper | Primary |
| Nickel Critical | Primary |
| Cobalt Critical | Primary |
| Gold | Primary |
| Lead | Primary |
| Zinc Critical | Primary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcopyrite | Ore |
| Galena | Ore |
| Sphalerite | Ore |
| Apatite | Gangue |
| Ilmenite | Gangue |
| Quartz | Gangue |
| Result | SEVERAL SAMPLES, AVERAGES FOR EACH ZONE: CU=120-650 PPM, PT=1-12 PPB, PD=1.6-100 PPB, NI=8-65 PPM, CO=38-50 PPM. MAX. PD=500 PPB, PT=41 PPB. PD/PT=1-8 |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase | ||||
| |||||
| (1) | -77.60302, 39.02142 |
|---|
| General form | UNKNOWN BUT PROBABLY DISSEMINATED |
|---|---|
| Thickness | 150M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | MP00248 |
GOTTFRIED, DAVID, AND FROELICH, A.J., 1988, VARIATIONS OF PALLADIUM AND PLATINUM CONTENTS AND RATIOS IN SELECTED EARLY MESOZOIC THOLEIITIC ROCK ASSOCIATIONS IN THE EASTERN UNITED STATES, IN, FROELICH, A.J., AND ROBINSON, G.R., JR., EDS., STUDIES OF THE EARLY MESOZOIC BASINS OF THE EASTERN UNITED STATES: U.S. GEOLOGICAL SURVEY BULLETIN 1776, P. 332-341.
GOTTFRIED, DAVID, FROELICH, A.J., ARUSCAVAGE, P.J., AND RAIT, NORMA, 1989, ANOMALOUS PALLADIUM-PLATINUM OCCURRENCES IN MESOZOIC QUARTZ-NORMATIVE THOLEIITIC SUITES IN THE EASTERN UNITED STATES, IN, SCHINDLER, K.S., ED., USGS RESEARCH ON MINERAL RESOURCES - 1989, PROGRAM AND ABSTRACTS: U.S. GEOLOGICAL SURVEY CIRCULAR 1035, P. 23-25.
| Subject category | Comment text |
|---|---|
| Deposit | 5 SUBHORIZONTAL GEOCHEMICALLY ANOMALOUS ZONES; UNPUBLISHED MODEL NAME: MAGMATIC SEGREGATION. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUL-92 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.