Glauconite Sand, offshore Chile
|
||
Box corer in use Unknown macro: {table-cell} |
Macro |
Location:
200 km offshore Concepcion, south central Chile, outer shelf, ca. 160 m water depth
Depositional facies:
Outer shelf, ca. 160 km water depth
Provenance:
Glauconitic fecal pellets (peloids)
Composition:
Mainly glauconite, some phosphate
Petrographic thin section:
Unable to render embedded object: File (0025_th_s_II_1700.jpg) not found. |
Glauconitic fecal pellets with a |
Unable to render embedded object: File (0025-th-s-X_1500.jpg) not found. |
Bright field |
|
Dark field |
Texture:
Well sorted, well rounded coarse-grained pellets. This is not really a natural sand because the grains were concentrated by washing and sieving from a muddy box corer sample
Sample number |
Collector |
Date of sampling |
---|---|---|
heubeck0025 |
Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin |
dec. 2001 |
Comments:
This is not really a natural sand because the grains were concentrated by washing and sieving from a muddy box corer sample