Mine detail: Alonah Prospect

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Location: La Paz County, Arizona, United States, North America
Lat / long: 33.41757, -113.87939
dep_id: 10027701
mrds_id: M003869
Commodity type: metallic
Major mineral: Copper
Trace mineral: Iron
Operation type: Unknown
Deposit type: Replacement
Production size: No production occurred
Development status: Occurrence
ore: Magnetite
orebody_fm: IRREGULAR
conc_proc: Along This Zone The Feldspar Of The Granite Is In Places Completely Sericitized And The Ferro-Magnesian Minerals Are Altered To Chlorite And Epidote. The Mineralization Has Produced Small Seams And Replacements Of The Sheared Granite By Oxidized Copper Minerals And Disseminated Magnetite, But The Copper Content Is Low.
ore_ctrl: Ore Occurs Along Shear Zone
Reporter: Gere, W., Hall, R. K. (Creasey, S. C.)
hrock_type: Granite
arock_type: Andesite
References:
  • Deposit:: JONES, E.L. JR; 1915; A RECONNAISSANCE IN THE KOFA MOUNTAINS, ARIZONA: U.S.G.S. BULLETIN 620, P. 164
  • Deposit:: WILSON, E.D.; 1933; GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN YUMA COUNTY, ARIZONA: ARIZ. B.M. BULLETIN 134, P. 120
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