Prospectors Dream

Occurrence in Curry county in Oregon, United States with commodities Chromium, Rhodium, Platinum, Palladium, Iridium, Ruthenium, Gold, Silver
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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Reserves and resources
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10043084
MRDS ID M061573
Record type Site
Current site name Prospectors Dream
Related records 10177091

Geographic coordinates

Geographic coordinates: -123.85477, 42.27704 (WGS84)
Elevation 1000
Relative position 1.5 MI SOUTH OF PEARSOLL PEAK

Site location context

Political divisions (FIPS codes)

Curry(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pearsoll Peak(quadrangle 1:24,000 scale)

Grants Pass(quadrangle 1:100,000 scale)

Medford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chetco(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Rogue River-Siskiyou National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Kalmiopsis Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Curry

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 038S 010W 11 W EDGE Oregon

Comments on the location information

  • IN KALMIOPSIS WILDERNESS IN SISKIYOU NATIONAL FOREST. LOCATION GIVEN IS FOR PGE SAMPLE SITE LOCATION. TOPO MAP DOES NOT SHOW A PROSPECT NEAR THIS AREA

Commodities

Commodity Importance
Chromium Critical Primary
Rhodium Critical Primary
Platinum Critical Primary
Palladium Critical Primary
Iridium Critical Primary
Ruthenium Critical Primary
Gold Secondary
Silver Secondary

Comments on the commodity information

  • CHROMITE IS MEDIUM TO COARSE GRAINED

Materials information

Materials Type of material
Chromite Ore
Aragonite Gangue
Talc Gangue

Alteration

  • (Local) Partly Serpentinized

Analytical data

Result ORE REPORTED TO ASSAY ABOUT 42% CR2O3
Result 1 PGE ANALYSIS: PT=<10 PPB
Result PD=<4 PPB
Result IR=50 PPB
Result RU=200 PPB
Result RH=13 PPB.

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Pearsoll Peak Ophiolite
    Rock description Pearsoll Peak Ophiolite

Nearby scientific data

(1) -123.85477, 42.27704

Economic information

Geologic structures

Type of structure Local
Structure description Several Small Faults

Ore body information

  • General form LENS, WISPS, SCHLIEREN
    Strike N20-32W
    Dip 50-65NE
    Width 0.91M

Controls for ore emplacement

  • Magmatic Segregation

Comments on the geologic information

  • GEOL.DESC: TREND OF CR LENSES APPROXIMATELY PARALLEL TO CONTACT OF DUNITE & HORNBLENDE DIORITE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Pearsoll Peak Area

Land status

Ownership category National Forest
Area name Siskiyou National Forest

Ownership information

  • Type Owner
    Owner Mc Caleb, Mrs. B. A.
    First year 1961

Comments on the production information

  • ORE WAS TAKEN OUT BY PACK ANIMAL

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 22000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 24.9 wt-pct Chromium Major 1982
    Gold Au 1.694 g/mt Gold Minor 1982
    Silver Ag 32.471 g/mt Silver Minor 1982

Comments on development

  • ESSENTIALLY NO DEVELOPMENT. PRODUCTION IN 1942?

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit OFFSET SEGMENTS OF A SINGLE LAYER PRODUCED SEVERAL LENS-SHAPED SEGMENTS. ODGMI'S MILOC FILE INDICATES DISSEMINATED ORE ALSO PRESENT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1976 Johnson, Maureen G. U.S. Geological Survey
Updater 01-APR-1981 Ferns, Mark L. (Brooks, Howard C.) Oregon Department of Geology and Mineral Industries
Updater 01-MAY-1989 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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