1. Marine sediments
Objective: To become familiar with the different types of marine sediments and understand how turbidity currents are created

2. NOTE LOG SCALE

5. Flocculation Demonstration
How does sediment (clay) behave differently in saltwater vs. freshwater??

6. Flocculation Demonstration
Charged particles (clay) in saltwater “cling” to each other forming larger particles that settle out faster
Sediments from land settle out along the continental shelf
Continental sediments have both a biological and terrigenous origin

7. Hard parts of organisms that can be found in sediment samples

10. Carbonate compensation depth

13. Turbidites

14. Turbidity Currents- Evidence
Shallow, continental shelf, benthic fauna are carried to deep-ocean depths and deposited.
Coarse sediment deposits are found where sediments collect because of the presence of low current speeds.
Deep sea channels indicate a current has moved across the ocean bottom.
Laboratory models indicate turbidity flows are possible (sediment/water & water).

16. = 56 mph

17. Measured vs. Theoretical
U = 0.7 [(d1 - d2)(gh)/d2]-2
Measured speed - use cm mark