Question 1

0.25 / 0.25 pts

This rock sample is:

mafic

felsic

Question 2

0.25 / 0.25 pts

This rock was formed under what conditions?

extrusive

intrusive

Question 3

0.25 / 0.25 pts

This rock sample is:

https://flexiblelearning.auckland.ac.nz/rocks_minerals/rocks/images/rhyolite3.jpg

felsic

mafic

Question 4

0.25 / 0.25 pts

This rock was formed under what conditions?

https://flexiblelearning.auckland.ac.nz/rocks_minerals/rocks/images/rhyolite3.jpg

extrusive

intrusive

Question 5

0.25 / 0.25 pts

This rock sample is:

https://blogs-images.forbes.com/trevornace/files/2016/06/black-white-granite-countertops-1200x833.jpg?width=960

felsic

mafic

Question 6

0.25 / 0.25 pts

This rock sample was formed under what conditions?

https://blogs-images.forbes.com/trevornace/files/2016/06/black-white-granite-countertops-1200x833.jpg?width=960

intrusive

extrusive

Question 7

0.25 / 0.25 pts

This rock sample is:

extrusive

intrusive

Question 8

0.25 / 0.25 pts

This rock sample was formed under what conditions?

mafic

felsic

Question 9

0.35 / 0.5 pts

The rock in Sample 3, this is the same as from the questions above, is from mountains of Yosemite, which have an approximate elevation of 10,000 ft. Explain the formation of this rock and the significance of finding this rock type at that elevation.

https://blogs-images.forbes.com/trevornace/files/2016/06/black-white-granite-countertops-1200x833.jpg?width=960

Your Answer:

platonic rocks in Yosemite were formed from recreated intrusions of magma into older hot rock beneath the surface of the earth.it  might have taken these intrusions 130 million years of time. these rocks which are usually found under the earth surface are now exposed at the surface. waiting to erode . 

Question 10

0.5 / 0.5 pts

Write in the name of the appropriate rock, rock category, or rock term.  You should consult your notes and the textbook. Rock categories are defined as the three basic categories of rocks that comprise the rock cycle.  Several different examples of rocks were discussed in class.  Rock terms are words that are used to describe different characteristics of rocks. 

Which category of rock is a primary type and involves rocks cooled from molten rock?

igneous

metamorphic

sedimentary

clastic