Study guide on Rocks, Fossils, Time

1. Know everything about the characteristics of sedimentary rocks, and their meaning

(Color, texture, grainsize, sorting, grain shape, sedimentary structures such as: layering, stratification, mudcracks, cross bedding, graded bedding, ripple marks)

2. You must know the classification of sedimentary rocks; clastic or detrital based on grainsize; chemical and biological. I’d like you to be able to interpret the certain sedimentary environment in which the rock were formed. ex: oolitic limestone: tropical, arid, high energy environment).

3. You should know all the geologic principles we have learned such as: Principle of Crosscutting, Principle of original horizontality, principle of lateral continuity, Principle of inclusion, Principle of unconformity, so on.

4. Learn the definition and the meaning of the following terms:  Formation; facies; termination of facies (abrupt, pinching out; intertonguing, gradual change).

5. It is time to relax, so have some fun before the hard part:

Transgression, regression; how do you recognize them? Be able to make drawings with at least 3 different sea level.

6. Walter’s low; sedimentary cycle

7. Causes of transgression, regression;

8. If your friend is there make him/her to listen to your explanation about the importance of fossils in a sedimentary sequence. If he/she did not hate you to much, go on, and tell her/him about the types of preservation, and about the principle of fossil succession.

9. Explain the following terms: index fossils; fossil zone; stratotype

10. Correlation