Mafic-plutonic sand, Antofagasta, Chile
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Location:
North Chile, end of road along coast approx. 10 km south of Antofagasta
Provenance:
Gabbroid rocks on western slope of the Cerro Coloso
Composition:
White plagioclase, black hornblende, absence of quartz
Texture:
Coarse sand, poorly sorted, almost not transported detritus
Sample number |
Collector |
Date of sampling |
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Sample Number:
heubeck0128 - SA16
Collector:
Christoph Heubeck, FU Berlin
Date:
2005
Comments:
The Cerro Coloso is a "core complex" of mafic, plutonic rocks. They are found at > 1000 m on top of the cliff. The slope is described as an "angle of repose" and is covered by salt incrusted gravel and dune sands.
