Sedimentary structures
practical 7 Assessed
• The photograph shows a cut surface
through a rock.
• Please describe the sedimentary
structures that are visible on this
surface.
• 1. Make a sketch of the rock • You should show the sedimentary
structures
• 2. What are the primary sedimentary
structures?
• 3. Can you tell which way the water was
flowing when the sediment was
deposited? • Use arrows to show the apparent
palaeocurrent direction
• 4. Show evidence for erosion. • Use a coloured line e.g. red to show
erosion surfaces.
• How many erosion surfaces can you
identify?
• 5. Are there any other structures visible
in the photograph?
cm scale