Abstract
A 95 m long section (Lacke section) located in the Norther Calcareous Alps of Austria was analyzed in detail. Detailed field measurements and point-counting of thin-sections revealed a distinct compositional variation of calciturbidites deposited in the Triassic Hallstatt Basin (Pedata-Pötschen Schichten). After a pilot study seven point-count groups were developed distinguishing input from different paleoenvironments. Statistical analysis of the point-count data using summary statistics, cluster-and correspondence analysis assisted in describing the compositional variation within the calcuturbidites. Alternated flooding and exposure of the platform as a result of sealevel fluctuations, creating and destroying shallow-water habitats on the flat platform top, produced the variations in turbidite composition.
Original language | English |
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Pages (from-to) | 253-277 |
Number of pages | 25 |
Journal | Facies |
Volume | 25 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Dec 1991 |
Keywords
- Calciturbidites
- Carbonate Sedimentology
- Facies
- Northern Calcareous ALPS
- Sea Level
- Triassic (Norian)