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5 Written questions

5 Matching questions

  1. (T/F) Peat is though to be the original material from which coals are formed
  2. (T/F) Carbon-14 is useful for determining the age of igneous rocks
  3. sandstone
  4. the radioactive isotopes uranium 238, uranium 235, and thorium-232 eventually decay to different, stable, daughter isotopes of _____
  5. which of the following statements concerning slate is not true
  1. a has abundant coarse-grained mica
  2. b Lead
  3. c False
  4. d sand
  5. e true

5 Multiple choice questions

  1. Cleavage
  2. Differential stress
  3. sedimentary rocks
  4. pressures are fairly low, the rock is in the upper part of the crust, and heat is supplied from a nearby magma body
  5. false

5 True/False questions

  1. what type of foliation results from the parallel alignment of abundant, coarse-grained, mica flakes in a metamorphic rockSchistosity


  2. of the original amount of radioactive parent isotope "x" in a feldspar crystal, 25% remains and 75% has decayed to stable daughter isotope "Y". How many half lives have elapsed400


  3. what foliated, metamorphic rock is texturally intermediate between slate and schistDifferential stress


  4. what is the main difference between a conglomerate and a sedimentary brecciabreccia clasts (fragments) are angular, conglomerate clasts are rounded


  5. (T/F) Many limestones are of biochemical originfalse