1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Mamao

Producer in Para, Brazil with commodity Gold
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Economic information about the deposit and operations
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10065512
MRDS ID TC40851
Record type Site
Current site name Mamao
Alternate or previous names Serra Das Andorinhas

Geographic coordinates

Geographic coordinates: -49.81412, -7.43691 (WGS84)
Location accuracy 10000(meters)
Relative position ABOUT 35 KM SE OF RIO MARIA.

Site location context

Political divisions (FIPS codes)

Para(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Para

Comments on the location information

  • NORTH OF IGARAPE GOIABA.

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Pyrrhotite Ore
Quartz Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
    Stratigraphic age (youngest) Neoarchean
    Stratigraphic age (youngest) Neoarchean
  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Gemaque Sequence, Rio Fresco Formation;;Goiaba Sediments
    Rock description Gemaque Sequence, Rio Fresco Formation;;Goiaba Sediments
  • Host or associated Associated
    Rock type Sedimentary Rock > Carbonate > Dolomite
  • Host or associated Associated
    Rock type Sedimentary Rock > Chemical Sediment > Chert
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock
    Rock unit name Babacao Sequence, Xingu Complex
    Rock description Babacao Sequence, Xingu Complex

Nearby scientific data

(1) -49.81412, -7.43691
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Andorinhas Syncline

Comments on the geologic information

  • FOLIATION TRENDS N70E TO N85W AT 60NW OR NE; MICROFOLD PLUNGE 5NE OR NW.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1978
Discoverer Docegeo

Comments on the production information

  • GARIMPEIROS.

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 8224000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 30.81 g/mt Gold Major 1982

Comments on the reserve resource information

  • ORE (1) MEASURED, ORE (2) INDICATED.

Reference information

Bibliographic references

  • Deposit

    DA SILVA, A.R.B., DE CAMPOS, A.A., 1988, DEPOSITOS DE OURO DA SERRA DAS ANDORINHAS, RIO MARIA, PARA, IN PRINCIPAIS DEPOSITOS MINERAIS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRASILIA, V. III, P. 559-567

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site