| Deposit ID | 10228980 |
|---|---|
| MRDS ID | M700096 |
| MAS/MILS ID | 0530730007 |
| Record type | Site |
| Current site name | Sumner Chrome Group |
| Alternate or previous names | Summer Chrome Group, Beck and Short Grub |
| Related records | 10047810 |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -121.95684, 48.65901 (WGS84) |
| Elevation | 1368 |
| Location accuracy | 500(meters) |
Political divisions (FIPS codes)
Whatcom(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Twin Sisters Mountain(quadrangle 1:24,000 scale)
Mount Baker(quadrangle 1:100,000 scale)
Concrete(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Nooksack(hydrologic unit)
Puget Sound(hydrologic accounting unit)
Puget Sound(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Mt. Baker-Snoqualmie National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Washington | Whatcom |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 037 N | 007 E | 31 | W2 | Washington |
| Commodity | Importance |
|---|---|
| Chromium Critical | Tertiary |
| Iron | Tertiary |
| Materials | Type of material |
|---|---|
| Chromite | Unknown |
| Enstatite | Unknown |
| Magnetite | Unknown |
| Olivine | Unknown |
| Serpentine | Unknown |
| Ore Body (1) | Tertiary dunite intrusive rocks |
|---|
| Thickness | 9999M | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | 999999M | ||||||||||||||||||||||||||||||
| Width | 999999M | ||||||||||||||||||||||||||||||
| Area | 159HA | ||||||||||||||||||||||||||||||
| Depth to top | 99999M | ||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||
| Operation type | Surface |
|---|---|
| Development status | Occurrence |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1941 |
| District name | Mount Baker District |
|---|
| Ownership category | National Forest |
|---|
| Type | Unknown |
|---|---|
| Owner | John W. Brisky |
| Home office | Washington |
| Year | 1975 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0530730007 | |
| USGS | Mineral Resources Data System | MRDS | M700096 | MAS references MRDS |
GAUDETTE, H.E., GEOCHEMISTRY OF THE TWIN SISTERS
ULTRAMAFIC BODY, WASHINGTON, UNPUB. THESIS, UNIV. OF
ILLINOIS, 1953.
WA. DIV. MINES AND GEOL. BULLETIN 37, 1956, PART II,
VOL. 1, P. 42.
RAGAN, D.M., GEOL. OF TWIN SISTERS DUNITE NORTHERN
CASCADES, WASHINGTON, UNPUB THESIS UNIV OF WASH, 1961.
SPANSKI, G.T., TWIN SISTERS MTS, WASH, UNIV OF
ILLINOIS 1963.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 24-JUN-94 | Ridenour, James | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.