Geological Significance of Ooids Quiz
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Questions and Answers

What distinguishes peloids from ooids?

  • Peloids are larger in size than ooids.
  • Peloids are only found in deep sea environments.
  • Peloids lack internal structures. (correct)
  • Peloids have concentric internal structures.

How are fecal pellets related to peloids?

  • Fecal pellets are unrelated to the formation of peloids.
  • Fecal pellets form concentric internal structures like peloids.
  • Fecal pellets are always larger than peloids.
  • Fecal pellets are a type of peloid. (correct)

Which process may lead to the formation of peloids?

  • Formation from large intraclasts.
  • Micritization of large ooids.
  • Boring activities of endolithic algae on skeletal fragments. (correct)
  • Micritization due to current transport.

What is the size range of peloids?

<p>Silt to fine-sand size (0.03–0.1 mm). (D)</p> Signup and view all the answers

How do peloids differ from rounded intraclasts?

<p>Peloids have uniform shape and good sorting. (C)</p> Signup and view all the answers

What is the main distinguishing feature of oncoids?

<p>Size exceeding 1 to 2 cm. (B)</p> Signup and view all the answers

What is the primary distinguishing factor between peloids and fecal pellets?

<p>Internal structure (D)</p> Signup and view all the answers

What is the primary distinguishing factor between solution porosity and intercrystalline porosity?

<p>Formation process (A)</p> Signup and view all the answers

Which type of porosity is primarily associated with fractures caused by compaction?

<p>Secondary porosity (A)</p> Signup and view all the answers

What distinguishes intragranular pore space from intergranular pore space?

<p>Presence within individual particles or among framework grains (D)</p> Signup and view all the answers

Which type of porosity is primarily associated with pore space among chemically formed crystals?

<p>Intercrystalline pore space (B)</p> Signup and view all the answers

What type of porosity is caused by the dissolution of fossils within a rock?

<p>Solution porosity (B)</p> Signup and view all the answers

Which phenomenon leads to wave breaking and net horizontal movement in shallow water?

<p>Increase in wave amplitude (D)</p> Signup and view all the answers

What distinguishes wave behavior in water from wave behavior in solids?

<p>&quot;Oscillatory motion without net horizontal movement&quot; (B)</p> Signup and view all the answers

"Fracture Porosity" primarily arises from which process?

<p>&quot;Tectonic forces&quot; (D)</p> Signup and view all the answers

"Intragranular Pore Space" is best described as the pore space:

<p>&quot;Within individual particles&quot; (B)</p> Signup and view all the answers

Which phenomenon does not occur in waves?

<p>Mass transport between particles (C)</p> Signup and view all the answers

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