Volcanic litharenite, beach sand, Tenerife, Puerto de la Cruz
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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) |
Petrographic thin section:
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 |
Comments:
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
