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Murra

Occurrence in Nueva Segovia, Nicaragua with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10096759
MRDS ID W702063
Record type Site
Current site name Murra
Alternate or previous names Includes Several Veins: San Albino, San Juan De Murra, Mina La Plata, San Bernardo, La Esperanza, Los Angeles, La California, La Borracha, San Rafael, San Pedro De Colindres, Santa Emilia, Monte Cristo, Santiago, Eden, Santo Domingo, La Concepcion, Okland, San Gregorio, Antonieta, San Cristobal, El Transito, Doradito, San Benito, Santa Elena, El Tubo, El Socorro, El Manton, And La Corona.

Geographic coordinates

Geographic coordinates: -86.00136, 13.75923 (WGS84)
Elevation 900
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Nueva Segovia(province)

Nicaragua(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Nicaragua Nueva Segovia

Comments on the location information

  • LAT LONG GIVEN IS FOR TOWN OF MURRA. MINING DISTRICT IS GENERALLY ELONGATE NNE, EXTENDING FROM 6 KM NE TO 6 KM SW. SAN ALBINO LIES ALONG SAME TREND, ABOUT 11 KM SW OF TOWN OF MURRA.

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • SAN JUAN DE MURRA, 1 KM SW OF MURRA, REPORTEDLY CONTAINS PB, ZN, MINOR CU, AND SOMETIMES BARITE ALONG WITH AG AND AU.

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Quartz Gangue

Analytical data

Result ACCORDING TO CERRON, THE BEST AREA IS NE OF MURRA AND INCLUDES 24 VEINS: MINA DE PLATA 1.5 G/T AU, 2704 G/T AG; SAN BERNARDO 1.5 G/T AU, 2.0 G/T AG; LA ESPERANZA 23 G/T AU, 81 G/T AG; LOS ANGELES 2 G/T AU, 4 G/T AG; LA CALIFORNIA 1.5 G/T AU, 4 G/T AG; LA BORRACHA 0.5 G/T AU, 3 G/T AG; SAN RAFAEL 16.5 G/T AU, 360 G/T AG; SAN PEDRO DE COLINDRES 3 G/T AU, 8 G/T AG; SANTA EMILIA 12 G/T AU, 75 G/T AG; MONTE CRISTO 2.5 G/T AU, 28 G/T AG; SANTIAGO 5 G/T AU, 6 G/T AG; EDEN 2.5 G/T AU, 3 G/T AG; SANTO DOMINGO 0.25 G/T AU, 3 G/T AG, (14) LA CONCEPCION 3 G/T AU, 3 G/T AG; OKLAND 5 G/T AU, 6 G/T AG; SAN GREGORIO 8 G/T AU, 12 G/T AG. THE OTHER 8 INCLUDE ANTONIETA, SAN CRISTOBAL, EL TRANSITO, DORADITO, SAN BENITO, SANTA ELENA, EL TUBO, AND EL SOCORRO - NO GRADES ARE GIVE FOR THESE VEINS.
Result THE GEOLOGISTS NOTE: TOOK 73 SAMPLES FROM ABOUT THAT MANY VEINS IN A 16 SQ KM AREA AROUND MURRA. ONLY 6 WERE INTERESTING (10.63-31.20 G/T). EN MANTON/LA CORONA, 5 KM N OF MURRA, BEST RESULT WAS 25 G/T AU AND 0.34 G/T AU. THE 2 M WIDE VEIN ASSAYED 23 G/T AG AND 31 G/T AU, USUALLY SMALL AND DISCONTINUOUS WITH ERRATIC VALUES.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Rock unit name Dipilto Batholith
    Rock description Dipilto Batholith
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -86.00136, 13.75923
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne And Ene Faults

Ore body information

  • General form LENSES
    Strike N25W
    Dip 29NE
    Width 2M

Controls for ore emplacement

  • May Be Some Relation Of Ore Deposits To Nne Fault Zone 3 Km W Of Murra And Related(?) Ene Faults. San Albino Lies On This Trend. There Are No Prospects Or Mines Further South Than That Which May Be Due To An Up-To-The-South Wsw Normal Fault 2 Km S Of San Albino.

Comments on the geologic information

  • SCHISTS AND PHYLLITES ARE LIMITED ON EITHER SIDE OF QUARTZITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Murra District - Dipilto Region

Comments on the workings information

  • EXTREMELY SMALL SCALE MINING IF ANY.

Reference information

Bibliographic references

  • Deposit

    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.

  • Deposit

    CAMACHO, JAIME, 1964, INFORME SOBRE ALGUNAS OBSERVACIONES GEOLOGICAS GENERALES SOBRE LOS YACIMIENTOS DE ORO Y PLATA DE LA REGION DE MURRA, DEPARTMENTO NUEVA SEGOVIA - 30/10/64: MANAGUA, NICARAGUA, MINISTERIO DE ECONOMIA, SERVICIO GEOLOGICO NACIONAL, 12 P.

  • Deposit

    SERVICIO GEOLOGICO DE NICARAGUA, 1906, REPORTE GENERAL SOBRE LAS MINAS DEL DEPARTMENTO NUEVA SEGOVIA: MANAGUA, NICARAGUA, 44 P.

  • Deposit

    LEVY, E., 1970, LA METALOGENESIS EN AMERICA CENTRAL: PUB. GEOL. ICAITI, P. 17-57.

  • Deposit

    CERRON, RAUL, 1969, YACIMIENTOS MINERALES DE NICARAGUA: MANAGUA, NICARAGUA, MINISTERIO DE ECONOMIA, INDUSTRIA Y COMERCIO, SERVICIO GEOLOGICO NACIONAL, 46 P.

General comments

Subject category Comment text
Deposit AVERAGE WIDTH IS 30 CM. THE STRIKE GIVEN ABOVE IS FOR THE 2 M WIDE VEIN. SOME GOLD DISSEMINATED IN SCHIST.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1990 Bliss, James D. U.S. Geological Survey
Updater 01-SEP-1992 Venable, Margaret U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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