Question

12. How would the sediment size and sorting vary between a passive and active margin? Be sure to be specific in your answer. (4 pts) 13. Using the diagram on the following page, name a sedimentary rock associated with the following depositional environments listed below (6pts): a. Lacustrine (lake) → b. Evaporite basin → c. Deep marine → d. Alluvial → e. Aeolian (desert) → Sand Stone f. Reef →

Answer 1

12. Passive margin  have a thick accumulation of coarse and fine grain sediments, fine particles remain suspend in water. Graded bedding is found with finer particles at top and coarser particles at the bottom. While active margin has a lateral distribution of fine and coarser particles.

13. a) lacustrine - shale

b) evaporite - rock salt

c) deep marine - limestone,

d) Alluvial - conglomerate

e) Aeolian - Sandstone

f) Reef - limestone