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Conaripe, Lago Calafquen, South Chile
Provenance:
Provenance of the sand, description of sedimentation route.... Volcanic lava
Composition:
Composition of the sand, mineralogy, ecc. Green and black obsidian, with embedded clinopyroxene and plagioclase; andesitic mikrolithes, ignimbrit;
PRF's: plagioclase, ortho-/clinoyroxene (Gabbro);
monocrystalline quartz;
SRF: Aragonit (Ooid)
Texture:
Texture of the grains, ecc.
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