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Biotite from
Chapada Mine, Alto Horizonte, Goiás, Brazil


Locality type:Mine
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Age information
Maximum recorded age:534 ± 16 Ma
Minimum recorded age:524 ± 72 Ma
Sample ages:
Recorded ageGeologic TimeSampleDating method
1534 ± 16 MaTerreneuvian - Rb-Sr
2524 ± 72 MaTerreneuvian - Rb-Sr
3532 ± 1 MaTerreneuvian - Rb-Sr
Sample references:
1 -
Richardson S V, Jones L M, Kesler S E
2 -
Richardson S V, Jones L M, Kesler S E
3 -
Richardson S V, Jones L M, Kesler S E
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Chapada Mine, Alto Horizonte, Goiás, Brazil
Data Identifiers
Mindat Occurrence Record ID:616771
Long-form Identifier:1:3:616771:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
16.2km (10.1 miles) ⓘMundinho occurrence, Alto Horizonte, Goiás, Brazil
29.7km (18.4 miles) ⓘZacarias pit, Mara Rosa Gold Project, Mara Rosa, Goiás, Brazil
35.5km (22.0 miles) ⓘPosse Mine, Mara Rosa Gold Project, Mara Rosa, Goiás, Brazil
68.8km (42.7 miles) ⓘMaria Lázara mine, Guarinos, Goiás, Brazil
72.5km (45.0 miles) ⓘInglesa mine, Crixás, Goiás, Brazil
74.6km (46.4 miles) ⓘMine III, Crixás, Crixás gold field, Goiás, Brazil
75.4km (46.9 miles) ⓘOrebody IV, Mine III, Crixás, Goiás, Brazil
References
OLIVEIRA, CLAUDINEI GOUVEIA DE; QUEIROZ, CLÁUDIA LIMA DE; PIMENTEL, MÁRCIO MARTINS (2000) The Arenopólis-Mara Rosa Gold-Copper Belt, Neoproterozoic Goiás Magmatic Arc. Revista Brasileira de Geociências, 30 (2). p.219-221. doi:10.25249/0375-7536.2000302219221
KUYUMJIAN, RAUL MINAS (2000) Magmatic arc and associated gold, copper, silver, and barite deposits in the state of Goiás, central Brazil: characteristics and speculations. Revista Brasileira de Geociências, 30 (2). 285-288 doi:10.25249/0375-7536.2000302285288
Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155
 
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