| Deposit ID | 10218536 |
|---|---|
| MAS/MILS ID | 0240050002 |
| Record type | Site |
| Current site name | Dolfield Placer |
| Alternate or previous names | Rose Placer |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -76.81547, 39.40753 (WGS84) |
| Elevation | 165 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Baltimore(county)
Maryland(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Reisterstown(quadrangle 1:24,000 scale)
Baltimore(quadrangle 1:100,000 scale)
Baltimore(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Gunpowder-Patapsco(hydrologic unit)
Upper Chesapeake(hydrologic accounting unit)
Upper Chesapeake(hydrologic subregion)
Mid Atlantic(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Maryland | Baltimore |
| Commodity | Importance |
|---|---|
| Aluminum Critical | Tertiary |
| Chromium Critical | Primary |
| Iron | Tertiary |
| Magnesite | Tertiary |
| Silica | Tertiary |
| Titanium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chromite | Unknown |
| Ore Body (1) | Ultramafic Rocks |
|---|
| Thickness | 1.2M | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 136M | ||||||||||||||||||||||||||||
| Width | 136M | ||||||||||||||||||||||||||||
| Area | 2HA | ||||||||||||||||||||||||||||
| Depth to top | 0M | ||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||
| Operation type | Surface |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | Yes |
| Discovery year | 1914 |
| Mining method | Alluvial Mining |
| Year of first production | 1914 |
| Milling method | Gravity |
| District name | Soldiersdelight |
|---|
| Type of mineral rights | Unknown |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | Mr F A Dolfield |
| Interest | 100 |
| Home office | Maryland |
| Year | 1943 |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1943 | ||||||||||||||
| Indicated | 1840mt ore | ||||||||||||||
| Demonstrated | 1840mt ore | ||||||||||||||
| Inferred | 1840mt ore | ||||||||||||||
| Total resources | 3680mt ore | ||||||||||||||
| |||||||||||||||
| Type of workings | Surface | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Area | 1.8HA | ||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0240050002 |
JERMAIN, G., CONFIDENTIAL WAR MINERALS REPORT OF DOLFIELD
CHROMITE PLACER REGIONAL FILE NO 531 1943
PEARRE N HEYL A U S G S BULL 1082K PG 760 1960 PLATE 40 # 16
PEARRE N HEYL A THE HISTORY OF CHROMITE MINING IN PA & MD PA
EOL SURVEY I C 14 PGS 15-16 1959
PEARRE, N. AND A. HEDL. CHROMITE AND OTHER MINERAL DEPOSITS
IN THE PIEDMONT UPLANDS, MARYLAND. U.S. GEOLOGICAL SURVEY
CHROMITE PLACER REGIONAL FILE NO 531, USBM, 1943
| Subject category | Comment text |
|---|---|
| Deposit | THE LUTZ CHROMITE PROPERTY ADJOINS THE DOLFIELD PLACER THE DOMAIN MAY NOW BE STATE OWNED AS THE RESULT OF A RECENT PROGRAM TO ACQUIRE LANDS AND DESIGNATE TH ENVIRONMENTAL ENHANCEMENT AREAS AND WATER RESOURCE SITES CALLED THE SOLDIERS DELIGHT STATE NATURAL ENVIRONMENTAL AREA |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 21-FEB-95 | Hartos | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.