Bunter (geology)
Bunter Pebble Beds is the name formerly given to a set of sandstone deposits within the New Red Sandstone containing rounded pebbles. They are thought to be alluvial deposits and, judging from the rounding of the mainly quartzite pebbles, to have resulted from prolonged transportation in a large and turbulent river, resulting in powerful abrasion.
System | Series | Stage | Age (Ma) | European lithostratigraphy |
---|---|---|---|---|
Jurassic | Lower | Hettangian | younger | Lias |
Triassic | Upper | Rhaetian | 201.4–208.5 | |
Keuper | ||||
Norian | 208.5–227.0 | |||
Carnian | 227.0–237.0 | |||
Middle | Ladinian | 237.0–242.0 | ||
Muschelkalk | ||||
Anisian | 242.0–247.2 | |||
Bunter or Buntsandstein | ||||
Lower | Olenekian | 247.2–251.2 | ||
Induan | 251.2–251.9 | |||
Permian | Lopingian | Changhsingian | older | |
Zechstein | ||||
Major lithostratigraphic units of northwest Europe with the ICS's geologic timescale of the Triassic. |
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