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Volcanic
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litharenite,
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beach
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sand,
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Tenerife,
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Puerto
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de
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la
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Cruz
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www.fotopaises.com |
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Macro |
Location | Beach at Puerto de la Cruz, Tenerife |
Depositional facies | replace this with text about the dep facies |
Provenance | Basaltic, Pico del Teide |
Composition | mostly VRF (basaltic mikrolithes, ignimbrites), clinopyroxene, olivine, opaque ores (magnetite), epidote, microcline |
Texture | 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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Description | mostly coarse VRF (basaltic mikrolithes, ignimbrites), in addition phx of clinopyroxene, olivine, opaque ores (magnetite), epidote, microcline |
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Bright field | Dark field |
Sample number | heubeck0086 |
Collector | Prof. Walter Franke, Freie Universität Berlin |
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
