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Past Exam for GEOS 1004 - Physical Geology with Eriksson at Virginia Tech (VT)

Exam Information

Material Type:Exam 4
Professor:Eriksson
Class:GEOS 1004 - Physical Geology
Subject:Geosciences
University:Virginia Polytechnic Institute And State University
Term: 2006
Keywords:
  • Mid-Oceanic Ridge
  • Cementation
  • Chemical Weathering
  • Oceanic Ridge
  • Transform Boundaries
  • The Environment
  • Environment
  • Exfoliation
  • Lithification
  • Geothermal Gradient
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Sample Document Text

PHYSICAL GEOLOGY 1004 EXAM II — October 2, 2006  FORM A SECTION 1 CHOOSE THE BEST ANSWER AND FILL IN THE NUMBER ON THE OPSCAN SHEET. 1. Which is NOT TRUE for granitic (felsic) melts? 1. They have high silica contents 2. They have high potassium contents 3. They contain high sodium contents 4. They have high viscosities 5. They have low melting temperatures 6. All of the above are true 2. In a cooling silicate melt containing the eight most abundant elements in the crust, which mineral (s)  would crystallize last? 1. olivine and Ca­plagioclase 2. biotite 3. Na­plagioclase and pyroxene 4. amphibole (e.g. hornblende) 5. quartz 3. Each Hawaiian island is made by the coalescing of volcanoes of this type. 1.   shield volcano 2. cinder cone 3. composite volcano 4. Andesitic volcanoes are found 1. at converging plate boundaries. 2. at diverging plate boundaries. 3. at the mid­oceanic ridge crest. 4....

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