Geology 103 (Sedimentology and Stratigraphy)
California State University, Sacramento
Flow regimes, bedform progression, bedding and primary sedimentary structures
Upon completion of this unit students should be able to:
Discuss how ripples form, and label the parts of a ripple
Diagram the bedform progression that would occur as flow increases for a variety of grain sizes.
Distinguish between upper and lower flow regime.
List and discuss the main transporting agents and methods of particle transport in a moving fluid.
Describe bedforms that occur under different flow conditions.
Use the appropriate terms to describe bed thickness and different types of bedding
Describe ripple morphology or name ripples in plan view and in cross-section
Use cross-bedding to tell flow direction
Lecture 4: Flow regimes and bedform progression- Boggs, 5th edition, pp 65-74
Lecture 5: Beds and bedding- Boggs, 5th edition, pp. 65-74
Fill out a weekly reading log for these assignments. The weekly reading log is due Wednesday February 13.
Lab: Sand texture and composition
Lab and homework:
In lab this week we will look at sand samples under the dissecting microscopes. We will learn to identify quartz, feldspar, rock fragments and grain textures.
Homework: You will describe an unknown sand for homework. The unknown will be labeled unknown #1, and will be on the back counter in the lab room.
Answer key for unknown sand