George Luther Prospect

Occurrence in Cherokee county in North Carolina, United States with commodity Iron
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10090053
MRDS ID K002588
Record type Site
Current site name George Luther Prospect
Related records 10151426

Geographic coordinates

Geographic coordinates: -83.88462, 35.17872 (WGS84)
Relative position 0.7 MILE EAST OF PARKER CEMETERY

Site location context

Political divisions (FIPS codes)

Cherokee(county)

North Carolina(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Marble(quadrangle 1:24,000 scale)

Fontana Lake(quadrangle 1:100,000 scale)

Knoxville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hiwassee(hydrologic unit)

Middle Tennessee-Hiwassee(hydrologic accounting unit)

Middle Tennessee-Hiwassee(hydrologic subregion)

Tennessee(hydrologic region)

Federal lands

Nantahala National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Croatan National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

National Forests in North Carolina(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States North Carolina Cherokee

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Limonite Ore

Alteration

  • (Local) Weathering Of Iron-Bearing Minerals To Form Limonite

Analytical data

Result CLEAN ORE SAMPLE: 48.93% FE, 0.766% P (BAYLEY, 1925). USBM ANALYSES (ROBERTSON, 1946) OF SEVEN SAMPLES FROM AS MANY TEST PITS AND ROAD CUTS RANGES FROM 23.5 TO 44.2 PERCENT IRON.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Metadiorite; Precambrian; Dark-Green, Locally Porphyritic, Pyroxenite And Amphibolite. Van Horn (1948, P. 15) Terms These Rocks Metadiorite Because He Considers Them To Be Metamorphosed Diorites That Have Lost Their Feldspar And Quartz Through Metamorphism
    Rock description Metadiorite; Precambrian; Dark-Green, Locally Porphyritic, Pyroxenite And Amphibolite. Van Horn (1948, P. 15) Terms These Rocks Metadiorite Because He Considers Them To Be Metamorphosed Diorites That Have Lost Their Feldspar And Quartz Through Metamorphi
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble
    Rock unit name Residuum; Recent.;Andrews Formation-Thin Alt. Layers Of Marble And Biotite Schist
    Rock description Residuum; Recent.;Andrews Formation-Thin Alt. Layers Of Marble And Biotite Schist

Nearby scientific data

(1) -83.88462, 35.17872

Economic information

Geologic structures

Type of structure Regional
Structure description Northeast-Trending Strike Belts Define A Major Syncline

Ore body information

  • General form IRREGULAR, BLANKET
    Thickness 3.05M
    Width 12.19M

Controls for ore emplacement

  • Bedding, Fractures, And Residuum

Comments on the geologic information

  • THE ORE-BEARING ZONE IS REPORTED (BAYLEY, 1925) TO BE FLAT LYING AND OVERLAIN BY A MIXTURE OF SAND AND ORE FRAGMENTS. THE DEPOSIT SLOPES WITH THE LAND SURFACE. THE LIMONITE OCCURS AS RESIDUAL FLOAT PEBBLES AND BOULDERS OR AS THIN LAYERS INTERBEDDED IN THE SCHIST. ROBERTSON (1946) STATES THAT THE LATTER WERE FORMED BY PRECIPITATION OF LIMONITE FROM DOWNWARD-PERCOLATING IRON-BEARING SOLUTIONS ALONG FRACTURES, AND REPLACEMENT OF THE MORE-SOLUBLE THIN INTERBEDS OF LIMESTONE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Murphy Marble Belt

Ownership information

  • Type Owner
    Owner S. S. Luther And Julia Luther (Robertson, .
    Last year 1946

Comments on the workings information

  • WORKINGS CONSIST OF TWO PITS WHICH EXPOSED A DEPOSIT OF LIMONITE 8 TO 10 FEET THICK. NEARBY ROAD CUTS EXPOSE AS MUCH AS 10 FEET OF LIMONITE. AN OLD TUNNEL OF MINIMAL LENGTH ALSO OCCURS ON THE PROPERTY.

Comments on development

  • IT IS NOT KNOWN WHEN THE TWO OLDER PITS WERE DUG. THE U.S. BUREAU OF MINES DUG SOME TEST PITS AND SAMPLES ROAD CUTS DURING 1944-1945. ; ECON.COM: PHOSPHOROUS CONTENT IS TOO HIGH FOR CURRENT SPECIFICATIONS. TEST-PITTING SHOWS THAT DISTRIBUTION OF LIMONITE IS SPOTTY.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1974 Hale, Robin C. U.S. Geological Survey

Beyond USGS

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