La Libertad Area

Chontales, Nicaragua

GoldSilverLeadArsenicAntimonyCadmiumCobaltManganeseSeleniumCopperTelluriumZinc

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Commodities

PrimaryGold

SecondarySilver

TertiaryLead, Arsenic, Antimony, Cadmium, Cobalt, Manganese, Selenium, Copper, Tellurium, Zinc

Deposit

Deposit typeEPITHERMAL VEINS, SHEAR ZONES, VEIN

Deposit sizeM

Ore controlINTERSECTIONS OF NE AND NW STRUCTURAL ELEMENTS POSSIBLY CONTROLLED THE LOCATION OF CALDERA STRUCTURES WHICH IN TURN WERE STRUCTURALLY FAVORABLE FOR THE DEVELOPMENT OF QUARTZ VEINS (A POPULAR THEORY BASED ON VERY LIMITED FIELD EVIDENCE). PROBABLY CONTROLLED BY REGIONAL LINEAMENTS BUT NOT CALDERA STRUCTURE.

Geology

StructureNW-SE NORMAL FAULTS, NE FABRIC, VEIN ELONGATION OF INTRUSIVES AND FRACTURES.

AlterationKAOLINIZATION, SILICIFICATION, PROPYLITIZATION. KAOLINITE-ILLITE-POTASSIUM FELDSPAR-PYRITE ALTERATION ENCOUNTERED IN PROXIMITY TO VEINS. DISTRICT WIDE (REGIONAL) ALTERATION LAUNMONTITE-CHLORITE-CALCITE-QUARTZ. OXIDATION TO 80-100 M.

Economic & production

Development statusProducer

Discovery year1843

Identification

Deposit ID60001857

MRDS IDW702056

Alternate namesSan Juan Mine, Babilonia Mine, Chamarro Prospect, Esmeralda Structure, Santa Elena, Sta. Valentina, Admirable, Experiencia, Turqueza, Santiago, Tres Amigos, Gran Britannia, Esmeralda-Victoria Zones, Mojon Sw, Zopilote, El Salto, Babilonia Nueva, Babilonia Crimea, Babilonia Viejo, Veta 3, Desconocida, Populares, Santa Mana, Esmeralda Ester, Esmeralda Oeste, Chamarro OestesSan Juan, El Calvario, La Mestiza, La Juanita, Los Angeles-Anchura, San FranciscoMestiza, El Corral, El Pulpito, El Asombro, Mojon Azul, La Libertad, Includes Sultana, Asombro Claims, Armenia, La Torre, Victona, El Tigre

RegionNA

Data scoreC

Coordinates12.21347, -85.16665

References

INSTITUTO CENTROAMERICANO DE INVESTIGACION Y TECNOLOGIA INDUSTRIAL (ICAITI), 1970, MAPA METRALOGENETIO DE AMERICA CENTRAL; 1:2000000 AND ESTUDIOS METALOGENETICOS DE AMERICA CENTRAL: PUBLICIONES GEOLOGICAS DEL ICAITI NUMERO III, 76 P.MINING JOURNAL, LONDON, AUGUST 23, 1991, V. 317, NO. 8136, P. 135.ROBERTS, R.J., AND IRVING, E.M., 1957, MINERAL DEPOSITS OF CENTRAL AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1034, P. 189.DARCE, MAURICIO, 1987, GEOLOGIA DEL DISTRITO MINERO LA LIBERTAD, NICARAGUA: REVISTA GEOL. AMER. CENTRAL, VOL. 7, P. 65-82.KONDAKOV, L.A., AND NABROVERKOV, O.S., 1983, OCNOVPYYE CHERTY METALOGENII NIKARAGUA (PRINCIPAL CHARACTERISTICS OF THE METALLOGENY OF NICARAGUA): IZVESTIYA AKADEMII NAUK SSSR, SERIYA GEOLOGICHESKAYA, V. 1983, P. 91-104.ANACONDA FILES (85001) DATE 1/58.LILLJEQUIST, ROBERT, AND HODGSON, GLEN, 1983, STRUCTURES AND ROCK FORMATIONS RELATED TO PRECIOUS METALVEIN DEPOSITS IN NICARAGUA: MANAGUA, NICARAGUA, INMINE.SUNDBLAD, KRISTER, 1985, TRACE ELEMENT DISTRIBUTION IN THE NICARGUA AURIFEROUS DEPOSITS - A RECONAISSANCE STUDY: MANAGUA, NICARAGUA, SOAB, 12 P.U.S. EMBASSY MANAGUA, 1993, A LOOK AT NICARAGUA'S MINING SECTOR: DEPARTMENT OF STATE CABLE, 8/93.ANON., 1994, TWO NEW MINES ON TRACK FOR GREENSTONE: THE NORTHERN MINER., V. 80, NO. 36, P. 15.JENKINS, D.M., 1989, REPORT ON THE LA LIBERTAD-SANTO DOMINGO DISTRICT CHONTALES PROVINCE, NICARAGUA, JUNE 23, 1989: UNPUBLISHED REPORT, 28 P.