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Las Aquilas Este

Occurrence in San Luis, Argentina with commodities Nickel, Copper, PGE, Cobalt, 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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10061559
MRDS ID TC34472
Record type Site
Current site name Las Aquilas Este
Alternate or previous names Viroroco, Las Aguilas

Geographic coordinates

Geographic coordinates: -66.09938, -33.09745 (WGS84)
Location accuracy 10000(meters)
Relative position 30 KM NE OF SAN LUIS, Acc +/- 20 Min

Site location context

Political divisions (FIPS codes)

San Luis(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina San Luis

Comments on the location information

  • IN SIERRA DE SAN LUIS ON ARROYO LAS AGUILAS

Commodities

Commodity Importance
Nickel Critical Primary
Copper Primary
PGE Critical Secondary
Cobalt Critical Secondary
Gold Secondary

Materials information

Materials Type of material
Bravoite Ore
Chalcopyrite Ore
Chromite Ore
Cubanite Ore
Digenite Ore
Ilmenite Ore
Magnetite Ore
Marcasite Ore
Pentlandite Ore
Pyrite Ore
Pyrrhotite Ore
Actinolite Gangue
Calcite Gangue
Goethite Gangue
Graphite Gangue
Hematite Gangue
Serpentine Gangue

Alteration

  • (Local) Development Of Chlorite, Tremolite, Calcite, Quartz Veins And Replacement

Analytical data

Result ANALYSES OF SAMPLES WITH UP TO 2.82 PPM PT
Result O.O1 PPM IR
Result 0.39 PPM PD
Result <0.01 PPM RH
Result O.2 PPM AU. PENTLANDITE, 32.2-36.9% NI
Result 1.83-2.71% CO.

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Gneiss
    Stratigraphic age (youngest) Late Silurian
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite

Nearby scientific data

(1) -66.09938, -33.09745
ListMap

Economic information

Ore body information

  • Dip SUBVERTICAL
    Length 300M
    Depth to top 150M

Comments on the geologic information

  • 3 KM MAFIC-ULTRAMAFIC BODY ORIENTED NE-SW CONSISTS OF PYROXENITE, MELANORITE, MINOR LEUCONORITE, GABBRO NORITE, AND PARTIALLY SERPENTINIZED PERIDOTITE. CUMULATE, POIKILITIC, BANDED, PORPHYRITIC, CATACLASTIC, MYLLONITE TEXTURES COMMON. APPEARS TO HAVE BEEN REGIONALLY METAMORPHOSED. ORTHOPYROXENE WITH KINKBANDS; IN GABBEONORITE IS EN, 73.3 TO 80.1. PLAGIOCLASE WITH DEFORMATION AND RECRYSTALLIZATION TEXTURES, IN LEUCONORITE IS AN 42 TO 56. AMPHIBOLES PALE-GREEN, REPLACEMENT AND POIKILITIC, PHLOGOPITE, RED BROWN, KINKED AND FLEXED UP TO 2.4 MM. SECONDARY PRODUCTS CHLORITE, ANTIGORITE(?), CHRYSOTILE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Comments on the reserve resource information

  • HIGH GRADE GIVEN ABOVE, LOW GRADE 0.24% CU, 0.33% NI, 0.75% S

Comments on development

  • 5 DIAMOND DRILL HOLES BY DIRECCION GENERAL DE FABRICACIONES MILITARES

Reference information

Bibliographic references

  • Deposit

    MALVICINI, L., AND BROGIONI, N., 1993, EL YACIMIENTO HIDROTERMAL DE NIQUEL, COBRE Y METALES DEL "GRUPO DEL PLATINO", LAS AQUILAS ESTE, PROV. DE SAN LUIS, ARGENTINA.

  • Deposit

    ANGELELLI, VICTORIO, 1984, YACIMIENTOS METALIFEROS DE LA REPUBLICA ARGENTINA: BUENOS AIRES, COMISION DE INVESTIGACIONES CIENTIFICAS, V. I, P. 388-390.

  • Deposit

    GERVILLA, F., FENOLL HACH-ALI, P., ACEVEDO, R.D., CARRILLO, R., AND SABALUA, S., 1994, MINERALES DE PD, PT, Y AU DEL YACIMIENTO DE NI-CU DE LAS AGUILAS (PROVINCIA DE SAN LUIS), IN II JORNADA DE MINERALOGIA, PERTOGRAFIA Y METALLOGENESIS DE ROCAS ULTRABASICAS, LA PLATA, 6 DE JULIO DE 1994, EDS. M.K. BRODTKORB AND I.B. SCHALAMUK, INSTITUTO DE RECURSOS MINERALES, UNIVERSIDAD NACIONAL DE LA PLATA, PUBLICACION NO. 3, P. 517-521.

  • Other Database

    CIMRI

  • Reserve-Resource

    ANGELELLI (1984); GERVILLA AND OTHERS (1994)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-93 Page, Norman J. U.S. Geological Survey
Updater 19-JUN-95 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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