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Morelock Creek Placer

Past Producer in Alaska, United States with commodities Gold, Tin
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10002741
MRDS ID A015192
Record type Site
Current site name Morelock Creek Placer
Related records 10282359

Geographic coordinates

Geographic coordinates: -151.34142, 65.3221 (WGS84)
Location accuracy 250(meters)

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tanana B-3(quadrangle 1:63,360 scale)

Tanana SE(quadrangle 1:100,000 scale)

Tanana C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Doyon, Limited(ANCSA Region)

ANCSA Region NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS MF-371, LOC. 19. DEPOSIT FROM JUST ABOVE CONFLUENCE OF BONANZA AND HOMESTEAD CREEKS WITH MORELOCK CR. DOWNSTREAM FOR 3,200 FT.. COORDINATES GIVEN FOR PLACER CENTER. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Gold Primary
Tin Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Garnet Gangue
Hematite Gangue
Ilmenite Gangue
Magnetite Gangue
Cassiterite Unknown

Analytical data

Result 2 LINES OF CHAIN-DRILL HOLES INDICATED AVERAGES OF .1227 LB. SN AND .00378 OZ. AU PER CUBIC YD.. SMALL CUTS FROM "REEFS" IN 1942 YIELDED 6.054 LB. SN CONCENTRATE AND 1.951 OZ. AU FROM 71.3 CU YD. OF MATERIAL EXCAVATED. GOLD ASSAYED 922.2 PARTS PER THOUSAND IN FINENESS. GRADE: 2.1 GLM3 AU.

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel

Nearby scientific data

(1) -151.34142, 65.3221
ListMap

Economic information

Ore body information

  • Thickness 0.61M
    Length 975.36M
    Width 152.4M

Comments on the geologic information

  • THE REPETITION OF BEDS SUGGESTS THE PRESENCE OF A FAULT. TERTIARY GRANITIC ROCKS TO NE. ; MAJOR.UNITS: BEDROCK IS METAMORPHOSED ROCKS CONSISTING OF MASSIVE GREENSTONE, METACHERT, MASSIVE QUARTZITE, RECRYSTALIZED CHERTY DOLOMITE, LIMESTONE, MARBLE, PHYLLITE, AND SEVERAL KINDS OF SCHIST; MANY MILKY-QUARTZ VEINS WITH MINUTE PYRITE CRYSTALS. ; REG.COM: GOLD AND CASSITERITE THOUGHT TO BE DERIVED FROM QUARTZ VEINS CUTTING BEDROCK.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1901
Year of last production 1945

Mining district

District name Melozitna

Workings at the site

  • Type of workings Surface
    Area 15HA

Comments on the workings information

  • MUCK OVERBURDEN FROZEN.

Comments on development

  • INTERMITTANT HAND MINING AND CONSIDERABLE PROSPECTING, 1901-40'S, BUT NO LARGE AREAS OF MINABLE GROUND HAVE BEEN FOUND. EXPLORATION BY PROSPECTORS, USBM, AND USGS. NO LODE FOUND.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.
Deposit GOLD AND CASSITERITE IN BASAL 2 FT. OF GRAVEL AND IN CREVICES ALONG JOINT PLANES IN BEDROCK. RICHEST DEPOSITS BETWEEN MOUTHS OF BONANZA AND HOMESTAKE CREEKS. GOLD AND CASSITERITE PLACERS BEGIN JUST ABOVE THE MOUTHS OF BONANZA AND HOMESTAKE CREEKS AND EXTEND APPROXIMATELY 3,200 FT. DOWN MORELOCK CREEK. TIN PLACERS ARE BELIEVED TO EXTEND ANOTHER MILE DOWNSTREAM. GOLD AND TIN ARE WIDELY BUT SPORADICALLY DISTRIBUTED IN THE CREEK FLAT AND IN THE BENCHES ON THE NE SIDE OF MORELOCK VALLEY, THE BEST PROSPECTS BEING IN THE CREEK FLAT. ALLUVIUM 2-20 FT THICK, AN AVERAGE OF 5-6 FT. OF GRAVEL BENEATH 2-3 FT. OF FROZEN SILT.
Deposit STREAM GRADIENT ABOUT 200 FT. PER MILE. TOTAL GOLD PRODUCTION BELIEVED TO NOT BE MORE THAN A FEW HUNDRED OUNCES. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1987 Powers, M.T. (Huber, D.F.) 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.