Locality type: | Intrusion |
Classification |
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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 |
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Maximum recorded age: | 560 ± 30 Ma |
Minimum recorded age: | 560 ± 30 Ma |
Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
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1 | 560 ± 30 Ma | Ediacaran | - | K-Ar |
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Sample references: | |
1 | - | Nair, N. G. K., Soman, K., Santosh, M., Arakelyants, M. M., & Golubyev, V. N. (1985). K-Ar ages of three granite plutons from north Kerala. Journal of the Geological Society of India, 26(9), 674-676. |
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Confirmation |
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Validity: | Believed Valid |
Data |
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Mineral Data: | Click here to view Biotite data |
Locality Data: | Click here to view Ambalavayal intrusion, Wayanad district, Kerala, India |
Data Identifiers |
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Mindat Occurrence Record ID: | 1335452 |
Long-form Identifier: | 1:3:1335452:1 |
GUID (UUID V4): | 43023ee2-b757-4bc7-8767-4fbd2cbad62c |
Nearest other occurrences of Biotite |
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57.3km (35.6 miles) | ⓘKabahalli-Harohalli, Chamarajanagar District, Karnataka, India |
References |
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