Description
Spanish Prospectors
Commodities
PrimaryGold, Copper
SecondarySilver, Zinc, Lead
TertiaryNickel
Commodity typeM
Deposit
Deposit sizeY
WorkingsSurface/Underground
Orebody formTABULAR, EQUIDIMENSIONAL
Ore controlHanging Wall Dike (Or Flow), Zones Of Enhanced Permeability, Secondary Enrichment Of Au In Oxide Zone.
Materials
Ore mineralsChalcocite, Chalcopyrite, Galena, Gold, Millerite, Pyrite, Sphalerite
GangueCalcite, Chlorite, Epidote, Garnet, Quartz, Rhodonite
Geology
Host rockShale,Siltstone,Limestone · Metapan Formation; Yojoa Sedimentary Sequence
Associated rockDiorite,Andesite · Metagalpa
StructureMiogeosycline; Window In Tert Volcanics., Anticline?
Tectonic settingChortis Block, Central Nicaraguan Uplift.
Alteration"Skarnification" - Low Grade, Pyritization, Argillic Alteration.
Economic & production
Development statusPast Producer
First production1896
Identification
Deposit ID10086131
MRDS IDW702057
Alternate namesSiuna, La Luz, Los Angeles Mine
RegionNA
Data scoreA
Coordinates13.73423, -84.78327
References
INSTITUTO CENTROAMERICANO DE INVESTIGACION Y TECNOLOGIA INDUSTRIAL (ICAITI), 1970, MAPA METRALOGENETIO DE AMERICA CENTRAL; 1:2000000 & ESTUDIOS METALOGENETICOS DE AMERICA CENTRAL: PUBLICIONES GEOLOGICAS DEL ICAITI NUMERO III, 76 P.ROBERTS, R.J., AND IRVING, E.M., 1957, MINERAL DEPOSITS OF CENTRAL AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1034, P. 187-188.MINING MAGAZINE, JANUARY 1989, P. 46.U.S. EMBASSY MANAGUA, 1993, A LOOK AT NICARAGUA'S MINING SECTOR: DEPARTMENT OF STATE CABLE, 8/93.KONDAKOV, L.A., AND NABROVENKOV, O.S., 1983, PRINCIPAL CHARACTERISTICS OF THE MATALLOGENY OF NICARAGUA: ISVESTIYA AKADEMII NAUK SSSR, SERIYA GEOLOGICHESKAYA, V. 1983, P. 91-104.CIMRIROBERTS AND IRVING (1957); US EMBASSY MANAGUA (1993).KONDAKOV AND NABROVENKOV (1983).