1
Q
What is a Bed?
A
A bed is a single episode of deposition over a given time
2
Q
What does a bedding plane show?
A
A change in environment
3
Q
What is a Laminae?
A
A bed that is less than 1cm in thickness. They tend to be fine grained
4
Q
What is the difference between Ripples and Dunes?
A
Ripples (<10cm)
Dunes (>10cm)
5
Q
What is a geological term for Windblown (Especially in terms of sandstone)?
A
Aeolian
6
Q
What are forest beds?
A
Beds that are formed with the movement of sand into a Lee slope. Sand deposits on the sheer face, and builds beds.
7
Q
What is the difference between Stoss and Lee slopes?
A
Stoss - Gentle
Lee - Steep
8
Q
What are the differences in the formation of Symmetrical and Asymmetrical ripples?
A
Asymmetrical - 1 way current
Symmetrical - 2 way currents
Geology A-Level
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