Objectives:

Upon completion of this unit students should be able to: Name and discuss the components of carbonate rocks (grains, cement, micrite) Discuss the major types of carbonate grains and their sources Distinguish between micrite, sparry calcite cement, and grains in hand specimens of carbonate rocks Understand the importance of cement in marine environments Describe the major components in Folk's carbonate classification system Describe the major components in Dunham's carbonate classification system Identify carbonate rocks in hand specimen, and classify them using Folk and Dunham's classification systems Discuss the chemical, physical and biological factors that affect the stability and preservation of carbonate material in the world's oceans. Describe the Carbonate Compensation Depth (CCD), and factors that lead to variability in the depth of the CCD. Describe the different morphologies of algal carbonates Distinguish between limestone and dolostone in hand specimen Identify different types of carbonate porosity in hand specimen Discuss the chemical and physical factors that affect the stability and preservation of carbonate material in the world's oceans.

    

Reading Assignments:

Lecture 19: Carbonate classification- Boggs, 5th edition, pp. 135-147 Lecture 20: Carbonate stability- Boggs, 5th edition, pp. 147-154   Please fill out a reading log for this week.  Reading logs are due at the start of class on Wednesday.   Reading log

     

     

Class notes:

Lecture 19 notes Lecture 20 notes

     

Graphics from lectures:

Lecture 19 graphics Lecture 20 graphics

   

Lab this week-   Petrology and porosity of carbonate rocks:   I will pass out a copy of the lab.  If you need another copy you can click here:   Carbonate classification and porosity   Due date:  Finish the lab today, then check your answers with the key.  I will post a key in the front of the classroom.   You will take a short exit quiz before you leave lab today.  This will test your knowledge of carbonate rock I.D.