Antietam Mine

Producer in Greenlee county in Arizona, United States with commodities Copper, Gold, Silver

Geologic information

Identification information

Deposit ID 10026951
MRDS ID M001269
Record type Site
Current site name Antietam Mine
Alternate or previous names Boulder Claim, Shannon Property, Antietam Claim, Leo C Claim

Geographic coordinates

Geographic coordinates: -109.34759, 33.13316 (WGS84)
Elevation 1603
Relative position 6 MILES NNW OF CLIFTON
(click for info)

Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 003S 029E 34 SE OF NW Arizona

Comments on the location information

  • LOCATED IN KING GULCH; 1.0 MILE NE OF SHANNON MOUNTAIN. ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Copper Ore
Cuprite Ore
Pyrite Ore

Alteration

  • (Local) Extensive Surface Oxidation To Unknown Depths

Analytical data

Result 4 % CU, $8 AU/TON, 5 OZ. AG/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Morenci Granite Porphyry;Precambrian Granite Basement
    Rock description Morenci Granite Porphyry;Precambrian Granite Basement
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -109.34759, 33.13316

Geologic structures

Type Description Terms
Regional Ne Trending Narrow Porphyry Dikes In Vicinity; Veins In Region Consist Of Many Very Sharply Defined Fissure Planes Striking Nne
Local Adjacent To Morenci Quartz Monzonite Porphyry Intrusion; Porphyry Is Fragmented By Masses Of Quartzite, Limestone, And Shale

Ore body information

  • General form IRREGULAR
    Strike NS
    Dip 90
    Depth to top 0M
    Width 12.19M
    Length 1609.3M

Controls for ore emplacement

  • N-S Trending Fissure Vein In Granite Basement

Comments on the geologic information

  • ORES CONSIST CHIEFLY OF CHALCOPYRITE AND PYRITE IN ALTERED GRANITE; VEIN CONTINUES NORTHWARD ONTO THE BOULDER CLAIM (PROPERTY FORMERLY OF ARIZONA COPPER CO. LTD) AND SOUTHWARD ONTO THE OLD SHANNON COPPER CO PROPERTY.

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1902
Year of last production 1903

Mining district

District name Copper Mountain District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Phelps Dodge Corp., Morenci Branch

Workings at the site

  • Type of workings Underground
    Overall depth 15.24M

Comments on the workings information

  • DEVELOPMENTS INCLUDED A 2-COMPARTMENT SHAFT TO DEPTH OF 140 FT; TRAMLINE FROM MINE TO THE SHANNON RAILWAY.

Comments on development

  • OPERATORS INCLUDED P.F. CROWLEY; 2 PATENTED CLAIMS ARE ANTIETAM AND LEO C.; OWNERS INCLUDED THE DETROIT COPPER MININC CO OF ARIZONA; NEW ENGLAND AND CLIFTON COPPER MINES CO.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M001269

Bibliographic references

  • Deposit

    LINDGREN, W., 1905, THE COPPER DEPOSITS OF THE CLIFTON-MORENCI DISTRICT, ARIZONA: U.S.G.S. PROFESSIONAL PAPER 43, P. 354.

  • Deposit

    ABGMT-USBM FILE DATA.

  • Deposit

    WEED, 1914, THE COPPER HANDBOOK, V. 11, P. 318, DETROIT COPPER MINING CO OF ARIZ.

  • Deposit

    STEVENS, 1911, THE COPPER HANDBOOK, V. 10, P. 1285, NEW ENGLAND AND CLIFTON COPPER CO.

  • Deposit

    BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS UNIVERSITY OF ARIZONA, 153 P.

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-DEC-1981 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology