Beach Sand, Sri Lanka
Pictures of sampling site and depositional facies
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Location:
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Bentota beach | Garnet sand |
Location | Bentota River area, SW Sri Lanka |
Depositional facies |
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Provenance:
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Provenance | High grade metamorphic rocks of the south indian craton |
Composition |
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Transparent pink garnet, metallic black cassiterite, ilmenite, rutile, prismatic-elongate zirconia | |
Texture | Medium sand (ca. 400 µ), well to moderately sorted, angular (garnet) to subangular (cassiterite) |
Petrographic thin section:
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Description | In the bright field transparent pink garnets with characteristic high relief, opaque cassiterite, ilmenite and rutile. In the dark field the garnets appear black, the few prismatic-elongated zirconia with high relief are transparent |
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Bright field | Dark field |
Sample number | heubeck0052 |
Collector | Hettiavatilu |
Date of sampling | 1979 |
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Comments:
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A heavy minerals placer, characteristic for erosion products of high grade metamorphic rocks of S India in tropic climate and under intense chemical weathering
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Texture:
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Texture of the grains, ecc.
Sample number | Collector | Date of sampling |
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Comments:
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Further comments on the sand, depositional history, ecc.
