Rajesh, H. M.; Santosh, M. (1996) Fluorapatite from Alkaline Pegmatites of the Kerala Khondalite Belt: A Petrologic and Fluid Inclusion Study. Journal Geological Society of India, 48 (6). 637-646 doi:10.17491/jgsi/1996/480604
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Fluorapatite from Alkaline Pegmatites of the Kerala Khondalite Belt: A Petrologic and Fluid Inclusion Study | ||
| Journal | Journal Geological Society of India | ||
| Authors | Rajesh, H. M. | Author | |
| Santosh, M. | Author | ||
| Year | 1996 (December 1) | Volume | 48 |
| Page(s) | 637-646 | Issue | 6 |
| Publisher | Geological Society of India | Place | Bangaluru, India |
| URL | |||
| DOI | doi:10.17491/jgsi/1996/480604Search in ResearchGate | ||
| Generate Citation Formats | |||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 19285313 | Long-form Identifier | mindat:1:5:19285313:6 |
| GUID | 0 | ||
| Full Reference | Rajesh, H. M.; Santosh, M. (1996) Fluorapatite from Alkaline Pegmatites of the Kerala Khondalite Belt: A Petrologic and Fluid Inclusion Study. Journal Geological Society of India, 48 (6). 637-646 doi:10.17491/jgsi/1996/480604 | ||
| Plain Text | Rajesh, H. M.; Santosh, M. (1996) Fluorapatite from Alkaline Pegmatites of the Kerala Khondalite Belt: A Petrologic and Fluid Inclusion Study. Journal Geological Society of India, 48 (6). 637-646 doi:10.17491/jgsi/1996/480604 | ||
| In | (1996, December) Journal of the Geological Society of India Vol. 48 (6). Geological Society of India | ||
| Abstract/Notes | Abstract We report the occurrence of primary apatite crystals in association with graphite within alkaline pegmatite dykes in the Kerala Khondalite Belt (KKB). Petrologic and X-ray diffraction studies identify the mineral to be fluorapatite. Fluid inclusion studies show that the fluorapatites contain abundant CO2-rich inclusions with densities in the range of 0.85-0.72 gcm-3. A subsequent generation of trail-bound CO2-HP inclusions with low salinity were entrapped along hydraulic cracks. The abundance of CO2-rich inclusions, and the intimate association of fluorapatite with fluid-precipitated graphite suggest that the pegmatite dykes hosting fluorapatite were rich in CO2-dominated fluids. We identify that among the magmatic conduits proposed for the transfer of CO2-rich fluids in granulite processes in the KKB. the fluorapatite and graphite bearing pegmatites reported in this study form important examples. | ||
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