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  3. Mineral Resource Data System (MRDS)

Esmeralda

Occurrence in Chelan county in Washington, United States with commodities Copper, Gold, Silver, Arsenic
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10048447
MRDS ID MP00034
Record type Site
Current site name Esmeralda

Geographic coordinates

Geographic coordinates: -120.88592, 48.15843 (WGS84)
Elevation 2179
Relative position ABOUT 1.8 MI NORTH-NORTHEAST OF MASSIE LAKE

Site location context

Political divisions (FIPS codes)

Chelan(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Suiattle Pass(quadrangle 1:24,000 scale)

Twisp(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Wenatchee(hydrologic unit)

Upper Columbia(hydrologic accounting unit)

Upper Columbia(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Okanogan-Wenatchee National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Glacier Peak Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Chelan

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 031N 016E 29 NEAR CENTER Washington

Comments on the location information

  • UNSURVEYED

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore

Alteration

  • (Local) Widespread Hydrothermal Alteration

Analytical data

Result MANY SAMPLES ANALYZED. MAXIMUM VALUES ARE 2.2% CU, 0.37 OZ/TON AU, 4.8 OZ/TON AG, 29% AS IN SELECT AND CHIP SAMPLES

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -120.88592, 48.15843
ListMap

Economic information

Ore body information

  • General form DISSEMINATED IN LARGE BRECCIA PIPE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Chiwawa District

Land status

Ownership category National Wilderness
Area name In Glacier Peak Wilderness In Wenatchee National Forest

Comments on the workings information

  • ADITS, SHAFTS, PROSPECT PITS

Reference information

Bibliographic references

  • Deposit

    CHURCH, S.E., FORD, A.B., FLANIGAN, V.J., AND STOTELMEYER, R.B., 1984, MINERAL RESOURCE POTENTIAL OF THE GLACIER PEAK WILDERNESS AND ADJACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-1652-A, SCALE 1:100,000.

  • Deposit

    STOTELMEYER, R.B., JOHNSON, F.L., MCHUGH, E.L., FEDERSPEIL, F.E., DENTON, D.K., JR., AND STEBBINS, S.A., 1982, MINERAL INVESTIGATION OF THE GLACIER PEAK WILDERNESS AND ADJACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT MLA 98-82, P. 21.

General comments

Subject category Comment text
Deposit WIDESPREAD HYDROTHERMAL ALTERATION AROUND DISSEMINATED SULFIDES. GOLD AND SILVER ARE IN LOCAL HIGH-GRADE POCKETS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1991 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

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