Name: Elliot Engelsbel Points: /20 Score: Chapter 7: Interpreting Metamorphic Rocks 7.1 (c)
(2 Points)
Would you expect to find aligned, flattened mineral grains in a rock that has undergone heating but has not been subjected to differential stress during metamorphism? Why? (Hint: Read section 7.2.2 and look at Fig. 7.3 in the lab manual pages for answer]. No, you would not expect to find aligned, flattened mineral grains in a rock that has undergone heating but has not been subjected to differential stress during metamorphism. The only way you can get aligned and flattened grains is through differential stress. 7.10
(16 points)
Identify all of the samples listed below. Fill in the chart on the next page. Hand in the chart along with the lab answer sheet. Sample #’s: 1-6 Gneiss Phyllite Schist Marble Quartzite Slate 7.11 (a)
(2 Points) Use arrows to indicate the direction of pressure that was applied to this rock. Look at Fig. 7.3 in the posted lab manual page or the accompanying Powerpoint pdf.
