Mine detail: El Curiol Mine

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Location: Guanacaste, Costa Rica, North America
Lat / long: 10.30107, -85.76803
dep_id: 10007843
mrds_id: CS00069
Commodity type: metallic
Major mineral: Manganese
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Braunite, Pyrolusite
gangue: Quartz
orebody_fm: REPLACEMENT BODIES, LENSES, RESIDUAL ORE
model: 97: Volcanogenic Mn
alteration: Silicification, Supergene Enrichment
Reporter: Howe, Stephen S., Mosier, Dan
hrock_type: Diorite
Structure: Steeply Dipping To Nearly Vertical Faults Between Cherty Shale And Diorite; Shear Zones
tectonic: Nicoya Ophiolite Complex
yr_lst_prd: 1920
References:
  • Deposit:: SEARS, J. D., 1919, DEPOSITS OF MANGANESE ORE IN COSTA RICA: U.S. GEOL. SURV. BULL. 710-C, P. 70-71.
  • Deposit:: WEBBER, B. N., 1942, MANGANESE DEPOSITS OF COSTA RICA, CENTRAL AMERICA: AM. INST. MIN. METALL. PETROL. ENG. TECH. PUB. 1445, P. 6.
  • Deposit:: ROBERTS, R. J., 1944, MANGANESE DEPOSITS IN COSTA RICA: U.S. GEOL. SURV. BULL. 935-H, P. 398-399.
  • Deposit:: KUYPERS, E. P., AND DENYER CH., PERCY, 1979, VOLCANIC EXHALATIVE MANGANESE DEPOSITS OF THE NICOYA OPHIOLITE COMPLEX, COSTA RICA: ECON. GEOL., V. 74, P. 672-678.
  • 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.
  • Production:: ROBERTS (1944)
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