Quiz #8

13 September 2011

S.I. Session 8 Quiz

This quiz covers material from the lecture on Monday, September 12^th.

Part a) Match the term to its definition:

                TERMS:

a)Dikes                                 b) Xenolith                                          c) Concordant

d) Discordant                     e)Turbulent flow                              f)Ophiolite

g)Batholith                          h) Sill                                                     i) Mafic

                DEFINITIONS:

1)__A rock fragment which becomes enveloped in a larger rock during the latter's development and hardening.

                                2)__These are the largest forms of plutons.

3)__This is a fragment of oceanic crust thrust onto land.

4)__These are igneous intrusions that run parallel to country rock.

5) __ These are igneous intrusions that cut across country rock.

Part b) Describe the three main processes in magmatic stoping:

Part c) True or False:

                Mark T (true) or F (false) in the blank provided:

                                1)__Crystals are segregated as the mineral cools.

2)__Dikes run parallel to country rock.

                                3)__Batholiths can be as large as 1000 square kilometers.

4)__The islands of Hawaii form as the result of a hotspot.

5)__The island of Java formed because of ocean-ocean convergence.

6)__Sills run parallel to country rock.

7) __ Granite is derived by cooling a mixture of magmas from sedimentary, igneous, and metamorphic rocks of the continental crust.

8) __ Turbulent flows of liquid are unimportant in the mixing process.