Current · Cross section
Flaser and lenticular bedding
Flaser bedding is mostly sand ripples with thin mud drapes. Lenticular bedding is the mud-dominated counterpart, with isolated sand lenses in mud.
- How it forms
- Intermittent flow: ripples form during active flow and mud settles during quieter periods.
- Typical setting
- Mainly tidal environments; less often rivers
- Way up
- Not a primary way-up indicator.
- Flow direction
- Ripple cross-lamination within it can show flow direction.
Photo examples
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