Mine detail: Moncada Mine

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Location: Alajuela, Costa Rica, North America
Lat / long: 10.05386, -84.53187
dep_id: 10007916
mrds_id: CS00153
Commodity type: metallic
Major mineral: Gold
Minor mineral: Silver
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
gangue: Chalcopyrite, Galena, Pyrite, Quartz, Sericite, Sphalerite
orebody_fm: VEIN
work_type: Surface/Underground
model: 151: Epithermal vein, Sado
alteration: Silicification, Oxidation And Supergene (?). Andesite Is Totally Silicified Where Stockwork Quartz Veins Are Dense. Other Alteration Minerals Includes Chlorite, Hematite, Goethite, Jarosite
Reporter: Cox, Dennis P.
hrock_unit: Aguacate Formation
hrock_type: Andesite
arock_unit: Aguacate Formation
arock_type: Andesite
Structure: Post-Mineralization Faults Are Common
References:
  • Deposit:: BENNETT, EVAN, 1939, GOLD MINING IN COSTA RICA: ENG. MIN. J., V. 140, NO. 1, P. 56-58.
  • Deposit:: GONZALO MONCADA, OWNER, ORAL COMMUNICATION, 1986.
  • Deposit:: U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.
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