Geology Homework 1

Geology Homework 1 - Spotila GS1004 Take-Home Assignment 1...

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1 Take-Home Assignment #1, Due Thursday, 9/24/09 This is the first of 3 take-home assignments, which cumulatively make up 15% of the final grade. All answers to this assignment must be filled in on an op-scan form in #2 pencil. Forms will be provided in lecture. Be sure to fill in your name and student number on these forms. Turn in only the op-scan form on 9/24. This assignment is open-book; use whatever sources you want, including internet, text, library, etc. Take as much time as you want. You can also work together, but in the end your answers and work must be your own. Do not just copy someone else's answers! (During grading each form will undergo a statistical analysis to see whether the answers match anyone else's more significantly than they do the class mean; evidence of copying will be turned over to the Undergraduate Honor System.) Questions 1-39 are simple multiple choice based on lectures and details presented in Chps. 5, 6, and 7 of the book (but can also be found online, if you don’t have the book). The last group of questions are based on calculations. The calculations are all simple multiplication, unit conversions, and so on. How does this material relate to tests? The questions below are much more detailed and specific than the questions I'll ask on a test. Don't be discouraged that they are so picky; the test questions will focus more on concepts. Also, I will not recycle any of these questions on the tests. 1) Two distinct minerals may have the same chemical formula. a. true b. false 2) Minerals are homogenous substances in that _________. a. they all contain calcium b. once a mineral is formed, it can never be destroyed c. a mineral's physical properties and geometry are spatially uniform (the material behaves much the same no mater where it is observed) d. a mineral's chemistry and physical properties commonly change drastically from one end of a crystal to the other 3) Natural glass is not considered a mineral because it _________, a. is not homogenous b. is organic c. does not have fixed crystalline structure d. can be made synthetically as well as being a naturally occurring substance 4) Minerals in geodes form spectacular euhedral crystals because _________. a. all of the elements incorporated in the crystals are in plentiful supply b. the crytals have abundant room to grow in their hollow surroundings c. minerals within geodes are always framework silicated d. minerals within geodes always contain iron 5) The internal ordering of mineral crystals was first detected using ________. a. magnetic resonance imaging b. X-ray diffraction c. a scanning electron microscope (SEM) d. cathodized axial tomography 6) The shininess of a mineral is a helpful diagnostic property termed _________. a. color
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This note was uploaded on 12/20/2011 for the course GEOS 1004 taught by Professor Aksinha during the Fall '08 term at Virginia Tech.

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Geology Homework 1 - Spotila GS1004 Take-Home Assignment 1...

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