Department of Earth Science |Northeastern Illinois University

ESCI 340
Spring, 2007

Daily Objectives #13  (February 27, 2007)                                                        Dr. Sanders

By the end of today's class, you should be able to do the following:

* Describe the general methods/techniques for determining grain size distribution of a sediment sample, and explain the use of the term "percent finer".

* Looking at a grain size distribution graph, differentiate between sediment samples that are poorly graded and those that are well graded.

* Using a grain size distribution graph, read off the D10, D30, and D60, and calculate the coefficient of uniformity and the coefficient of curvature.

* Construct grain size distribution curves for the sample analyses distributed in class. 

* Explain what is required in the "Lab Methods" presentation.

Department of Earth Science | Northeastern Illinois University

© 2007 Laura L. Sanders.  Last updated February 28, 2007.