Commodities
PrimaryManganese
Commodity typeM
Deposit
Model97: Volcanogenic Mn
Deposit sizeS
Orebody formLENTICULAR TO IRREGULAR
Materials
Ore mineralsBraunite, Psilomelane, Pyrolusite, Wad
Geology
Host rockShale
Associated rockBasalt
Tectonic settingNicoya Ophiolite Complex
AlterationSilicification
Economic & production
Development statusPast Producer
Identification
Deposit ID10097769
MRDS IDCS00021
RegionNA
Data scoreB
Coordinates10.4955, -85.70413
References
SEARS, J. D., 1919, DEPOSITS OF MANGANESE ORE IN COSTA RICA: U.S. GEOL. SURV. BULL. 710-C, P. 78.ROBERTS, R. J., 1944, MANGANESE DEPOSITS IN COSTA RICA: U.S. GEOL. SURV. BULL. 935-H, P. 408-410.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.HEIN, J. R., KUIJPERS, E. P., DENYER, PERCY, AND SLINEY, R. E., 1983, PETROLOGY AND GEOCHEMISTRY OF CRETACEOUS AND PALEOGENE CHERTS FROM WESTERN COSTA RICA, IN IIJIMA, A., HEIN, J. R., AND SIEVER, R., EDS., SILICEOUS DEPOSITS IN THE PACIFIC REGION: AMSTERDAM, ELSEVIER SCIENTIFIC PUB. CO., P. 151, 153.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.