Satish Kumar, M.; Santosh, M. (1994) Fluorite Mineralization in the Kalpatta Granite: A Fluid Inclusion Study. Journal Geological Society of India, 43 (6). 659-667 doi:10.17491/jgsi/1994/430604
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Fluorite Mineralization in the Kalpatta Granite: A Fluid Inclusion Study | ||
| Journal | Journal Geological Society of India | ||
| Authors | Satish Kumar, M. | Author | |
| Santosh, M. | Author | ||
| Year | 1994 (June 1) | Volume | 43 |
| Page(s) | 659-667 | Issue | 6 |
| Publisher | Geological Society of India | Place | Bangaluru, India |
| URL | |||
| DOI | doi:10.17491/jgsi/1994/430604Search in ResearchGate | ||
| Generate Citation Formats | |||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 18965957 | Long-form Identifier | mindat:1:5:18965957:4 |
| GUID | 0 | ||
| Full Reference | Satish Kumar, M.; Santosh, M. (1994) Fluorite Mineralization in the Kalpatta Granite: A Fluid Inclusion Study. Journal Geological Society of India, 43 (6). 659-667 doi:10.17491/jgsi/1994/430604 | ||
| Plain Text | Satish Kumar, M.; Santosh, M. (1994) Fluorite Mineralization in the Kalpatta Granite: A Fluid Inclusion Study. Journal Geological Society of India, 43 (6). 659-667 doi:10.17491/jgsi/1994/430604 | ||
| In | (1994, June) Journal of the Geological Society of India Vol. 43 (6). Geological Society of India | ||
| Abstract/Notes | Abstract The granite pluton at Kalpatta in northern Kerala is a member of the Late Precambrian magmatic suite emplaced proximal to transcrustal faults in southern India In this study. we report the find of fluorite mineralization within late pegmatite phase associated with the granite. Both purple and colourless fluorites are associated, with X-ray diffraction pattern indicating perfect crystalline nature. Wet chemical analyses show CaF2 contents of 92 and 96 % for purple and transparent fluorites respectively. Primary fluid inclusions in both fluorite categories belong to aqueous bi-phase type, with Th between 150-180° C, and salinity in the range of 3 to 9 wt. per cent NaCl equivalent. Qurtz associated with fluorite contains CO2-H2O inclusions with Th(C02) between 8 to 15° C (density 0.85-0.90 g/cm3). The nature of mineralizing fluids suggests that fluorite crystallization occured from low temperature hydrothermal solutions derived as end-products of the frctionation of volatile- and alkli-enriched felsic magma. The mineralization is regarded as a finger-print of the alkaline affinity of Pan-African magmatism in Kerala. | ||
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