...
Petrographic thin section:
Provenanz aus einem Faltengürtel von klastischen Sedimentgesteinen
...
| Moderately sorted, moderately to | |
Bright field |
| Dark field |
Texture:
Texture of the grains, ecc.medium to fine grained, well sorted, subrounded
Sample number | Collector | Date of sampling | |||
|---|---|---|---|---|---|
Heubeck0026 | Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin | 2003 |
|
|
|
Comments:
Further comments on the sand, depositional history, eccThe meandering and braided Rio Pitai in the Bolivian lowland of the Amazonas Basin erodes
the Subandean Miocene-Recent fold-and -thrust belt. This belt exposes thick continental successions
of Carboniferous to Cretaceous eolian sandstones. The supermature source, the high mechanical
resistance, and weathering of river sands under a tropical climate all contribute to the maturity.
These sands are most likely multiply recycled.
