Burcham

Past Producer in San Bernardino county in California, United States with commodities Lead, Silver, Gold, Zinc, Copper

Geologic information

Identification information

Deposit ID 10034021
MRDS ID M020698
Record type Site
Current site name Burcham
Alternate or previous names Total Wreck
Related records 10140751

Geographic coordinates

Geographic coordinates: -116.8767, 34.95001 (WGS84)
Elevation 762
Relative position 12 MILES NE OF BARSTOW
(click for info)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 010N 001E 15,16,21 California

Commodities

Commodity Importance
Lead Primary
Silver Primary
Gold Primary
Zinc Secondary
Copper Secondary

Materials information

Materials Type of material
Cerargyrite Ore
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Barite Gangue
Iron Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)

Nearby scientific data

(1) -116.8767, 34.95001

Geologic structures

Type of structure Local
Structure description Faults

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Faults

Comments on the geologic information

  • GEOL.DESC: ROCKS COMPRISE A CLOSELY RELATED SERIES OF TERITARY FLOWS AND ASSOCIATED TUFFS, CONGLOMERATES, OR BRECCIA. CUT BY NUMEROUS DIKES AND IRREGULAR INTRUSIONS OF RHYOLITE AND OTHER ROCKS. OLDEST, MOST IMPORTANT ORE-BEARING FORMATION IS AN INTERBEDDED SERIES OF RHYOLITE FLOWS, INCLUDING BRECCIAS, MASSIVE TUFFS, PORPHYRITIC FLOWS, BANDED FLOWS AND WATER-LAID DEPOSITS OF SEVERAL KINDS OF VOLCANIC DEBRIS, INCLUDING WELL-LAMINATED SILTS.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1927 - 1945 INTERMITTENLY

Mining district

District name Calico

Comments on the production information

  • AVG. SMELTER RECOVERY; 11 % PB, 2.05 OZ AG, .404 OZ AU/TON, RECOVERABLE ZINC AND COPPER.

Workings at the site

  • Type of workings Underground
    Length 3048M

Comments on the workings information

  • CROSSCUT TUNNEL N 15 E FOR 512 FT. 104 FT. FROM PORTAL INTERSECTED BURCHAM VEIN DRIFTS 200 FT SE AND 640 FT. NW, 150 FT. SHAFT AT INTERSECTION OF VEIN, TWO RAISES TO SURFACE. MULCAHY VEIN INTERSECTED BY CROSSCUT TUNNEL, DRIFTS 500 FT. NW AND 240 FT. SE

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M020698

Bibliographic references

  • Deposit

    GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 3 & 4 ; DIV. OF MINES, P. 619

  • Deposit

    TUCKER, W. B. AND SAMPSON, R. J., 1943 , MINERAL RESOURCES, SAN BERNARDINO COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 39 , NO. 4 ; DIV. OF MINES, P. 475 - 476 .

  • Production

    GOODWIN, J. G., 1957 , P. 619 (SEE REF.)

General comments

Subject category Comment text
Deposit IRREGULAR MASSES IN FAULTED TERTIARY TUFFS, FLOWS, AND BRECCIA. 2 VEINS, BURCHAM VEIN; STRIKES N 70 W, DIPS 35 - 65 S, THICKNESS 3 - 7 FT.. MULCAHY VEIN; 300 - 500 FT. NORTH OF BURCHAM VEIN, IT STRIKES N 45 W, DIPS 65 S, 4 - 30 FT. THICK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey