Lab#14 Rock Lab (5/13/13 to 5/16/13)

which one is it? 18 rocks for you to desscribe with proper terminology....

Conclusion Questions: 

1. Use your ESRT to identify and explain two major differences between Plutonic and volcanic rocks.

2. Explain how the environmemt of formation of an igneous rock affects the crystal size and its texture.

3. Use your ESRT and the information given to you to answer Question #3. (see lab notebook for diagram).

4. The diagram shows an igneous intrusion (rock c) and areas where contact metamorphism has occured because of this intrusion. Rock C is a fine textured and dark colored rock which shows no evidence of gas pockets. Use the diagram and the ESRT to answerquestion 4a to 4d.

4a. Identify rocks A,B,C,D and E and NYS Landscape region you may find them (ESRT 3,2)

4b. Identify the names of the rocks which may form from contact metamorphism from Rock A, B, C, D and E.   find the parent rock

4c. Explain which of the three rock typesrepresented in the diagram would be best for locating fossil remains.

4d. Determine the minimum stream velocity needed to maintain, but not start, the movenement (carry in suspension) of the sediments which formed rocks at location A and D.

5. Use " Rock cycle" chart in the ESRT to identify and explain rock forming processes for each rock types.