Volcanic litharenite, beach sand, Tenerife, Puerto de la Cruz
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www.fotopaises.com | Macro |
Location |
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Beach at Puerto de la Cruz, Tenerife |
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Provenance:
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Depositional facies | replace this with text about the dep facies |
Provenance | Basaltic, Pico del Teide |
Composition |
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mostly VRF (basaltic mikrolithes, ignimbrites), clinopyroxene, olivine, opaque ores (magnetite), epidote, microcline | |
Texture |
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high textural maturity: very well sorted, well rounded, black, greenish, hyaline shining, smooth and dull, rough-textured surfaces, medium sand (250 to 400 μm) |
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Petrographic thin section:
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| mostly coarse VRF |
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Bright field |
| Dark field | ||
| | | coloured clinopyroxen cristals, fine grained basaltic microlithic | |
Bright field | Dark field |
Sample number | heubeck0086 | ||
Collector | Date of sampling | heubeck0086 | Prof. Walter Franke, Freie Universität Berlin |
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Date of sampling | ca. 1980 |
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Comments:
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high textural maturity, but mineralogical immature; contains small amounts of magnetite;
the cliffs and beaches of the Canary Islands are renowned for the presence of mafic minerals
More thin section images on the Additional data page
