Department of Earth Science |Northeastern Illinois University

ESCI 121
Spring 2007

Daily Objectives #8
(February 7, 2007)                                                                        Dr. Sanders

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

Sedimentary Rocks

* Review: Describe, give examples of, and explain the importance of each of the following processes in forming sedimentary rocks:
        chemical sediments                                 chemical weathering            deposition        
        detrital (clastic) sediments
                     dissolution                              lithification        
        mechanical (physical) weathering
       precipitation                            transport

* Using the sedimentary rock key in your textbook on p. 63, examine, describe, classify, and name the sedimentary rocks in your rock kit.  Please note: on the key, you may delete/ignore the following rocks: breccia, siltstone, and travertine.  Also, please substitute the word "clay" for "mud" on the detrital rocks side.

* Samples we looked at in class were the following:   #103, 104, 109, 113, 118, 128, 129, 135, 145, 151, 153, 158

* Look for Homework  #3 on the homework page!  It is due next week.

Department of Earth Science | Northeastern Illinois University

© 2007 Laura L. Sanders.  Last updated February 7, 2007.