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 | |
Depositional facies | replace this with text about the dep facies |
Provenance |
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Basaltic, Pico del Teide | |
Composition |
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Macro
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
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Texture:
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Texture of the grains, ecc.
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Sample Number:
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number of the sample
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Collector:
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Collector of the sand, Institution
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Date:
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Date of sampling
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Comments:
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Further comments on the sand, depositional history, ecc.