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Pacoima Canyon Placers

Prospect in Los Angeles county in California, United States with commodities Gold, Hafnium, Iron, Sand and Gravel, Construction, Zirconium, Titanium
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10115528
MAS/MILS ID 0060370613
Record type Site
Current site name Pacoima Canyon Placers
Alternate or previous names Little Tujunka Locality Ii

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -118.354, 34.35831 (WGS84)
Elevation 1097
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Los Angeles(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sunland(quadrangle 1:24,000 scale)

Los Angeles(quadrangle 1:100,000 scale)

Los Angeles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Clara(hydrologic unit)

Ventura-San Gabriel Coastal(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Angeles 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 Los Angeles

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003 N 014 W 09 C California

Commodities

Commodity Importance
Gold Tertiary
Hafnium Critical Tertiary
Iron Tertiary
Sand and Gravel, Construction Tertiary
Zirconium Critical Secondary
Titanium Critical Primary

Materials information

Materials Type of material
Amphibole Unknown
Garnet Unknown
Gold Unknown
Ilmenite Unknown
Magnetite Unknown
Plagioclase Unknown
Pyroxene Unknown
Quartz Unknown
Sphene Unknown
Zircon Unknown

Nearby scientific data

Ore Body (1) -118.354, 34.35831
ListMap

Economic information

Ore body information

  • Thickness 10M
    Length 14000M
    Width 30M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 PLACER
    Shape of Orebody #1 OTHER
    Primary mode of Origin RESIDUAL CONCENT
    Primary Ore Control OTHER
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830701
  • Area 42HA
    Field Value
    Total Surface Area (HA) 42
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Placer
Development status Prospect
Commodity type Both
Significant No
Discovery year 1983

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Unknown

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner U.S. Forest Service
    Interest 95
    Year 1983

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Total resources 1920000mt ore
    Commodity Subtype Grade units Group Importance Year
    Titanium TiO2 7.5 wt-pct Titanium Major 1983
    Iron FeO 21.5 wt-pct Iron Trace 1983
    Zirconium ZrO2 1 wt-pct Zirconium Minor 1983
    Sand and Gravel, Construction Sand/Gravl 65 wt-pct Sand and Gravel Trace 1983

Comments on the reserve resource information

  • THE TONNAGE DISPLAYED IN MATRIX ONE REPRESENTS THE FINE GRAINED MATERIAL LESS THE GRAVEL. SCREENING WILL REDUCE THIS FIGURE BY ABOUT FOURTEEN PERCENT
  • SEVERAL MILLION TONNES OF SAND AND GRAVEL WITH UP TO 30.8% TIO2 TITANIFEROUS MAGNETITE. DATA COULD HAVE BEEN ENTERED INCORRECTLY. THE 1,920,000 MT COULD BE 19,200,000 MT. SAME ERROR COULD HAVE HAPPENED WITH DATA ENTRY IN THE Q-DATA SET.

Workings at the site

  • Type of workings Surface
    Area 42HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ALLUVIAL MINING
    Avg. Overburden Thickness 0
    Primary Material Cover SAND, SILT
    Hardness of Ore SAND, GRAVEL
    Avg. Bench Height (meters) 5
    Max. Pit Slope (degrees) 45
    Capacity 1064
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 7.4
    Units of Production $/MT ORE
    Operating Days per Year 200
    Operating Shifts per Day 1
    Year of Information 1983

Reference information

Bibliographic references

  • Reserve-Resource

    OAKSHOTT, G B; GEOLOGY AND MINERALOGY OF THE SAN FERNANDO

  • Reserve-Resource

    QUADRANGLE,LOF ANGELS COUNTY, CALIFORNIA; CALIF DIV OF MINES

  • Reserve-Resource

    CALIF. DIV. MINES AND GEOL. BULLETIN 172, 1958, P. 147.

  • Deposit

    ANONYMOUS. BEACH SAND PROJECT FOR SOUTH AFRICA. MINING

  • Deposit

    MAGAZINE, VOL. 135, NOVEMBER, 1976, PP. 425-432.

  • Deposit

    ANONYMOUS. MINERAL SANDS SUPPLEMENT. INDUSTRIAL MINERALS

  • Deposit

    NO. 142, JULY, 1979, PP I-IV.

  • Deposit

    JUNE, 1981, PP. 458-465.

  • Deposit

    BENSON, W.T., A.L. ENGEL, H.J. HEINEN. TITANIFEROUS

  • Deposit

    MAGNETITE DEPOSITS, LOS ANGELES COUNTY, CALIFORNIA. BUMINES

  • Deposit

    R.I. 5962, 1962, 40 PP.

  • Deposit

    GOMES. J.M., G.M. MARTINEZ, W.W. WONG. RECOVERY OF

  • Deposit

    BYPRODUCT HEAVY MINERALS FROM SAND AND GRAVEL OPERATIONS IN

  • Deposit

    CENTRAL AND SOUTHERN CALIFORNIA. BUMINES R.I.8471, 1980, 20

  • Deposit

    GROGAN, R.M. MILLING AT DUPONT'S HEAVY MINERALS MINES IN

  • Deposit

    FLORIDA, MILLING METHODS IN AMERICA, GORDON AND BREACH

  • Deposit

    SCIENCE PUBLISHERS. 1964, PP. 205-230.

  • Deposit

    KAUFFMAN, A.J., AND D.C. HOLT. ZIRCON: A REVIEW, WITH

  • Deposit

    EMPHASIS ON WEST COAST RESOURCES AND MARKETS. BUMINES

  • Deposit

    I.C. 8268, 1965, 66 PP.

  • Deposit

    AND GEOLOGY BULL. 176, 1957, PP. 707-712.

  • Deposit

    CALIF. DIV. MINES BULLETIN 129, 1948, P. 264; PLATE 25.

  • Deposit

    CALIF. JOUR. MINES AND GEOL., V. 50, 1954, NO. 88, P. 645.

General comments

Subject category Comment text
Deposit EVALUATED AT INFERRED LEVEL IN 1983

Reporter information

Type Date Name Affiliation Comment
Reporter 03-OCT-1996 Gosling U.S. Bureau of Mines

Beyond USGS

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

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.