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Engels

Producer in Plumas county in California, United States with commodities Copper, Gold, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Land status
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10034127
MRDS ID M020834
Record type Site
Current site name Engels
Alternate or previous names Superior
Related records 10109418, 10261965

Geographic coordinates

Geographic coordinates: -120.77465, 40.2032 (WGS84)
Elevation 1615

Site location context

Political divisions (FIPS codes)

Plumas(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Moonlight Peak(quadrangle 1:24,000 scale)

Susanville(quadrangle 1:100,000 scale)

Susanville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

East Branch North Fork Feather(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Plumas National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Plumas

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 027N}028N 011E}011E 04,09,08}33,34 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Zinc Critical Tertiary

Comments on the commodity information

  • PYRITE IS RARE

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Enargite Ore
Galena Ore
Ilmenite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -120.77465, 40.2032
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Plane N 30 W, 60 Sw With Vertical Throw- Section South Of Fault Is Oxidized.

Ore body information

  • Strike N 60 E
    Dip VERY STEEP NORTH
    Width 36.58M

Controls for ore emplacement

  • Shear Zones - In Andesite Porphyry And Diorite

Comments on the geologic information

  • GEOL.DESC: ENGEL MINE AREA IS A PART OF THE DIAMOND MOUNTAIN BLOCK, WIDTH OF 20 MILES, LENGTH OF OVER 50 MILES, THE BLOCK HAS A NW - SE TREND AND IS BOUNDED BY A PROMINENT ESCARPMENT ON EAST SIDE. PRINCIPAL ROCKS ARE PLUTONIC, VARYING FROM GABBRO-DIORITES TO TRUE GRANITES WITH ASSOCIATED DIKE ROCKS. OLDER PLUTONIC ROCKS, GABBRO, DIORITE AND QTZ. DIORITE ARE PART OF A LARGE BATHOLITH OF WHICH THE WESTERN BORDER APPEARS IN THE ENGELMINE AREA. OTHER PLUTONIC ROCKS OCCUR AS TWO STOCKS, ONE PREDOMINANTLY OF QUARTZ MONZONITE, WHILE THE OTHER IS A TRUE GRANITE. OLDER ROCKS ARE MORE BASIC, YOUNGER ROCK MORE ACIDIC. TWO TYPES OF PRE-PLUNTONIC, OLDER TYPE IS PREDOMINANTLY RHYOLITIC FORMING A SERIES OF TUFFS, YOUNGER TYPE IS AN INTRUSIVE ANDESITE PORPHYRY. THE AGES OF THE PLUTONIC ROCKS ARE SUGGESTED TO BE LATE JURASSIC, THE RHYOLITE AND ANDESITE PORPHYRY ARE SUGGESTED TO BE CARBONIFEROUS.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant Yes
Production years 1918, 1927

Land status

Ownership category National Forest

Comments on the production information

  • THE FIGURES IN THE TABLE ARE FROM THE ANNUAL REPORT FOR 1927. SAID TO PRODUCE IN 1918 ABOUT 9,100,000 LBS. OF COPPER

Reserves and resources

  • Type In-situ
    Estimate year 1927
    Total resources 352000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2 wt-pct Copper Major 1927

Comments on the workings information

  • VERTICAL DEPTH OF OVER 1300 FT, 10 LEVELS NUMEROUS AMOUNT OF WORKINGS, AT THE END OF 1916 , 14,000 FT OF DEVELOPMENT WORK HAD BEEN DONE. IN 1927 FOLLOWING DEVELOPMENT WAS DONE; DRIFTS - 8,161 FT, RAISES - 4,667 FT, SHAFTS - 78 FT, DIAMOND DRILLING - 19,980 FT.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C.V., 1928 , REDDING FIELD DIVISION, 24TH REPORT OF THE STATE MINERALOGIST: CALIFORNIA MINING BUREAU, P. 271-278

  • Deposit

    GOODWIN, J.G., 1957, LEAD AND ZINC IN CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 53, NOS. 3 & 4, P. 595.

  • Deposit

    MAC BOYLE, E., 1918, PLUMAS COUNTY; 16TH REPORT OF THE STATE MINERALOGIST: CALIFORNIA MINING BUREAU, P. 55-59.

  • Production

    AVERILL, C.V., 1928 , P. 277

  • Reserve-Resource

    AVERILL, C.V., 1928 , P. 276

General comments

Subject category Comment text
Deposit CHARACTERISTIC FEATURES OF THE MINERALIZATION IS THE STREAKED APPEARANCE OF THE ORE DUE TO THE ARRANGEMENT OF SMALL SUB-PARALLEL BANDS OF CHALCOPYRITE AND BORNITE, THEY FOLLOW GENERAL DIRECTION OF ORE BODY.
Deposit 181 QUARTZ CLAIMS - SUPERIOR MINE IS PART OF THE OVERALL ENGEL MINING CO., BUT DUE TO ITS SIZE AND DIFFERENT GEOLOGY, IT WILL BE HANDLED IN ITS SEPERATE REPORT. COMPRISED OF 4640 ACRES.
Deposit MRDS RECORD W017598 HAS BEEN MERGED WITH THIS RECORD AND DELETED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey
Editor 01-JUN-1995 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.