Commodities
PrimaryManganese
Commodity typeM
Deposit
Model97: Volcanogenic Mn
Deposit sizeS
WorkingsSurface/Underground
Geology
Host rockShale
Tectonic settingNicoya Ophiolite Complex
AlterationSilicification
Economic & production
Development statusPast Producer
Last production1917
Identification
Deposit ID10007833
MRDS IDCS00056
Alternate namesMorro Hermosa Area
RegionNA
Data scoreB
Coordinates10.35663, -85.86108
References
SEARS, J. D., 1919, DEPOSITS OF MANGANESE ORE IN COSTA RICA: U.S. GEOL. SURV. BULL. 710-C, P. 72.ROBERTS, R. J., 1944, MANGANESE DEPOSITS IN COSTA RICA: U.S. GEOL. SURV. BULL. 935-H, P. 399-400.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.SEARS (1919), ROBERTS (1944)