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

Rod

Prospect in Alaska, United States with commodity Copper
Map
XML
JSON
KML
C
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. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308489
Record type Site
Current site name Rod
Alternate or previous names LEA Creek

Geographic coordinates

Geographic coordinates: -147.46284, 63.96965 (WGS84)
Relative position The Rod (LEA Creek) prospect is at an elevation of about 4,700 feet, on the east side of a south-flowing tributary to Dry Creek. The map site is about 1 mile south of VABM 6463 (Art), in the NW1/4 of sec. 13, T. 11 S., R. 1 E., of the Fairbanks Meridian. The location is accurate to within 1 mile.

Site location context

Political divisions (FIPS codes)

Denali(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy D-1(quadrangle 1:63,360 scale)

Mount Hayes NW(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Secondary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Chlorite Gangue
Quartz Gangue
Sericite Gangue

Mineral occurrence model information

Model code 184
USGS model code 28a
Deposit model name Massive sulfide, kuroko
Mark3 model number 93
Model code 186
USGS model code 28a
Deposit model name Massive sulfide, kuroko (Phanerozoic)
Mark3 model number 104
Model code 185
USGS model code 28a
Deposit model name Massive sulfide, kuroko, (Precambrian)
Mark3 model number 103

Host and associated rocks

  • Host or associated Host
    Rock type

Nearby scientific data

(1) MDts
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks at the Rod (LEA Creek) prospect are the Lower Mississippian to Middle Devonian Totatlanika Schist, composed predominantly of felsic and mafic metavolcanic and metavolcaniclastic rocks, pelitic schist, and minor marble (Wilson and others, 1998). The deposit consists of massive-sulfide lenses in schist (www.grayd.com, 1999). The lenses are mainly galena and sphalerite, accompanied by chlorite, quartz, and sericite.
  • Age = Mineralization was probably syngenetic with the Lower Mississippian to Middle Devonian host rocks.

Economic information about the deposit and operations

Development status Prospect

Comments on exploration

  • Status = Active

Comments on the workings information

  • Workings / Exploration = Only preliminary surface sampling and hand-trenching has been conducted to date (1999).

Reference information

Comments on the references

  • Primary Reference = www.grayd.com, 1999

General comments

Subject category Comment text
Deposit Model Name = Kuroko massive sulfide (Cox and Singer, 1986; model 28a)
Deposit Other Comments = Also see HE122 and HE125.

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-2000 N. Van Wyck (Stevens Exploration Management Corporation) Stevens Exploration Management Corporation

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.