1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Gayle

Prospect in Alaska, United States with commodities Silver, Copper, Lead, Zinc, Gold
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10094021
MRDS ID A012139
Record type Site
Current site name Gayle
Related records 10281621

Geographic coordinates

Geographic coordinates: -148.72335, 67.85973 (WGS84)
Relative position This site is at an elevation of about 3,500 feet, approximately 3 miles west-northwest of the west end of Reds Lake (sec. 17, T. 35 N., R. 5 W., of the Fairbanks Meridian). The location is accurate within a 1/2-mile radius.

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chandalar D-4(quadrangle 1:63,360 scale)

Chandalar N(quadrangle 1:100,000 scale)

Chandalar C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

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

Comments on the commodity information

  • Ore Material = argentiferous galena
  • Ore Material = copper sulfides and/or malachite

Materials information

Materials Type of material
Silver Ore
Azurite Ore
Sphalerite Ore
Galena Ore
Malachite Ore

Mineral occurrence model information

Model code 60
USGS model code 18c
Deposit model name Skarn Zn-Pb
Mark3 model number 22

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Skajit Limestone
    Rock description Skajit Limestone
    Stratigraphic age (youngest) Late Devonian

Nearby scientific data

(1) -148.72335, 67.85973
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The Gayle prospect is one of at least two Pb-Zn-Ag plus or minus Cu prospects near this site. Descriptive information specific to the property is sparse. Brosgi and Reiser (1964) described the prospect as chalcopyrite( ?) and/or malachite-azurite stains near the top of the Skajit Limestone, while Grybeck (1977) reported that sphalerite and galena (with silver values) on the Gayle and Bob prospects occur in small veinlets and stockworks in altered limestone and marble. Newberry and others (1997) classify the Gayle prospect as a calcic Zn-Pb skarn and replacement body. These Zn-Pb skarns are described by Newberry and others (1986) as distal to Devonian(?) porphyry Cu-Mo systems associated with the Horace Mountain plutons in the Chandalar copper belt. The bedrock near the prospect is mapped as Devonian Hunt Fork Shale near its contact with Skajit Limestone. Intercalated diorite sills and andesitic flows(?) are also present in the section.
  • Age = Devonian, based on reported Early Devonian Pb/Pb zircon ages from the associated Baby Creek batholith and Horace Mountain plutons (Dillon and others, 1996).

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Chandalar

Comments on the workings information

  • Workings / Exploration = Claims staked in 1972 and 1973.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Newberry and others, 1997

General comments

Subject category Comment text
Deposit Model Name = Zn-Pb skarn deposits(?) (Cox and Singer, 1986; model 18c)
Deposit Other Comments = See also: Bob (CH089) "&" Bibban (CH090). ? Brosgi and Reiser (1972, p. 7, 11), reported analytical results of 1 to 3 ppm Ag, 700 ppm Pb, and 6.5 ppm Au from a rock sample probably collected from the Gayle prospect.? Alaska Kardex Nos. 031-61C and 58B (Kardex is a card file mining claim information system located at the State of Alaska DNR Public Information Center in Fairbanks).

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1999 J.M. Britton U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Alaska resources

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