...
| | |
www.fotopaises.com |
| Macro |
Location:
Beach at Puerto de la Cruz, Tenerife
...
Basaltic, Pico del Teide
Composition:
...
...
mostly VRF (basaltic mikrolithes, ignimbrites), clinopyroxene, olivine, opaque ores (magnetite), epidote, microcline
...
high textural maturity: very well sorted, well rounded, black, greenish, hyaline shining, smooth and dull, rough-textured surfaces, medium sand (250 to 400 μm)
Thin sections:
| | |
Bright field |
| Dark field |
mostly coarse VRF (basaltic mikrolithes, ignimbrites), in addition phx of clinopyroxene, olivine, opaque ores (magnetite), epidote, microcline
| | |
Bright field |
| Dark field |
coloured clinopyroxen cristals, finegrained basaltic microlithic lava, opaque magnetite
Sample |
|---|
...
number | Collector | Date of sampling |
|---|---|---|
heubeck0086 |
...
Collector:
...
Prof. Walter Franke, Freie Universität Berlin |
...
Date:
...
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
