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QUESTION9 Match each sedimentary structure with its description You can use this video to help you if you need a refresher: https://www.youtube.com/watch?v-21q0FBQ6Q7l The woman in the video, Aida Awad, is an alumni of UIC EAES and is currently the Science Department Chair at a suburban high school. 2 4 Fine 5 Cearse A- Elongated ridges that form on the surface of a bed marking Sedimentary Structure 1 D. Sedimentary Structure 2 E. ф Sedimentary Structure 3 -Sedimentary Structure 4 Sedimentary Structure 5 water flow. B. Distinct internal laminations that are inclined at an angle to the boundary of the main sedimentary layer typically associated with sand dunes. C. Turbidity current deposited these beds, depositing coarser material first. 13 D Multiple layers of sedimentary rock that have been deposited in horizontal planes. E. The surface of a muddy layer might dry up revealing cracks

Answer 1

Sedimentary structure 1: A. These are elongated ridge that form on the surface of a bed marking water flow (these structures are typically formed due to flow of water bodies and traced as ripple marks.)

Sedimentary structure 2: D. These are multiple layers of sedimentary rock that have been deposited in horizontal planes.

Sedimentary structure 3: E. The surface of a muddy layer might dried up revealing cracks

Sedimentary structure 4: C. These structures are due to turbidity currents which causes deposition of sediments in form of finer upward sequence.

Sedimentary structure 5: B. Distinct internal lamination that are inclined at an angle to the boundary of the main sedimentary layer typically associated with sand dunes( these are structures fromed due to wind flow or water flow which typically chatecterise the flow direction and velocity it is also termed as cross bedding)

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