Mountain stream sand, Entenlochklamm, Germany
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Pictures of sampling site and depositional facies
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Location:
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Location of sample, geographic area
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Depositional facies:
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Facies/area of deposition
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Provenance:
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Provenance of the sand, description of sedimentation route....
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Composition:
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/Austria
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Entenlochklamm | Macro |
Location | Entenlochklamm, Chiemgau Alps, Germany/Austria |
Depositional facies | Mountain stream, gorge; highly variable flow conditions and short transport |
Provenance | Orogenic; sediments and metasediments of the eastern alps (Kössener Becken/Schichten) |
Composition | SRFs (partly low grade metamorphic overprinted) → clay shales/shists (phyllite), limestones (packstones with fragments of fossiles), dolomite, marl, chert; PRFs (also low grade metamorphic overprinted) → monocrystalline quartz, plagioclase, hornblende, chlorite |
Texture | Immature, very poorly sorted, subrounded, bright and dark grey, reddish, medium to coarse sand (250 to 1250 μm) |
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Petrographic thin section:
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Description | Metasedimentary provenance of coarse crystalline, almost marble like limestones, clay bearing shaly marl, monocrystalline quartz, quartz bearing plutonic rock fragments, metalitharenite with high mica content and compact mudstones |
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Texture:
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Bright field | Dark field |
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Sample number | heubeck0028 | ||
Collector | Christoph Heubeck, Institut für Geologische Wissenschaften, FU Berlin | ||
Date of sampling |
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| 2002 |
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Comments:
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Further comments on the sand, depositional history, ecc.Die Entenlochklamm wird von der Tiroler Ache durchflossen, die den „Kaiserwinkel" im nördlichen Vorland des Kaisergebirges (genauer des Zahmen Kaisers) entwässert. Dort stehen deformierte und leicht metamorphisierte klastisch-karbonatische Gesteine der triassischen Kössener Schichten an. Probenpunkt an einer schmalen, hochgelegenen, ca. 50 m langen Sandbank am stromabwärtigen Ende der Klamm.
