EESA06 Quiz 6.docx

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Department
Environmental Science
Course
EESA07H3
Professor
Nick Eyles
Semester
Winter

Description
EESA06 Quiz 6 Page 1 User Celia Duong Submitted 3/17/11 9:30 PM Name Quiz 6: The rock record lecture + chapters 5-7,9 & 10 Status Completed Score 32 out of 35 points Time Elapsed 31 minutes, and 41 seconds out of 1 hour Question 1 There are 4500 different mineral species but 60% are silicates. Selected Answer: False Correct Answer: False Question 2 This sedimentary structure is called graded bedding and was most likely the result of turbidity currents. Selected Answer: True Correct Answer: True Question 3 Metamorphic rocks are usually foliated. Selected Answer: True Correct Answer: True Question 4 Halite is an evaporite mineral. Selected Answer: True Correct Answer: True Question 5 Magmas with minerals of isolated silicate structure flow easily. Selected Answer: True Correct Answer: True Question 6 Which of these polymorph minerals is most likely to form in shallow depth but high temperature conditions? Selected Answer: a. sillimanite Correct Answer: a. sillimanite Question 7 A sill is a vertical body of igneous rock. Selected Answer: False Correct Answer: False Question 8 Magmas from stratovolcanoes are dominated by sheet and framework silicate minerals. Selected Answer: True Correct Answer: True EESA06 Quiz 6 Page 2 Question 9 Plutonic rocks form deep underground. Selected Answer: True Correct Answer: True Question 10 Please put the following rocks in order from the LEAST metamorphosed (lowest grade metamorphism) to the MOST metamorphosed (highest grade metamorphism). Correct Answer 1. slate 2. phyllite 3. schist 4. gneiss Question 11 A dyke is a flat lying intrusion of metamorphic rock. Selected Answer: False Correct Answer: False Question 12 During the time period pictured in this image the ocean is relatively enriched in oxygen 18. Selected Answer: True Correct Answer: True Question 13 Phaneritic igneous rocks are fine grained and cooled quickly. Selected Answer: False Correct Answer: False Question 14 The Galapagos Islands lie within the Cocos plate. Selected Answer: True Correct Answer: False Question 15 This picture shows ____. Choose the BEST answer. Selected Answer: c. an 'aa' lava flow Correct Answer: a. all of these answers are true Question 16 Which of the following statements about the features pictured in this image is FALSE? Selected Answer: d. Mount Mazama is pictured as the little island in the lake. Correct Answer: d. Mount Mazama is pictured as the little island in the lake. EESA06 Quiz 6 Page 3 Question 17 What is the softest mineral? Selected Answer: d. talc Correct Answer: d. talc Question 18 Guyots are extinct, flat topped drowned volcanoes. Selected Answer: True Correct Answer: True Question 19 I am a plutonic igneous rock w
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