Carbonate Geology: Depositional Environments and Platforms
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Questions and Answers

What type of reef structure is typically characterized by a wave-resistant topographic feature?

  • Paleozoic (Early Permian) reef
  • Phylloid algae and bryozoa structures
  • Biostrome
  • Bioherms (correct)

Which of the following statements about the carbonate-producing organisms is NOT true?

  • Stromatolites are structures formed by algae throughout the geologic record. (correct)
  • Mesozoic reefs were dominated by rudistids and corals.
  • Present-day reefs are dominated by corals and red algae.
  • The carbonate-producing organisms have varied through time.

What is the primary characteristic of a rimmed shelf carbonate platform?

  • Isolated platform like the Great Bahama Bank
  • Rapid carbonate production of 1-100 mm/y
  • Presence of oolite shoals and tidal bars
  • Pronounced break in slope (correct)

Where are corals typically located on a carbonate platform?

<p>In the areas of rapid carbonate production (D)</p> Signup and view all the answers

What is the primary difference between a bioherm and a biostrome?

<p>Bioherms are mound-like, while biostromes are layered. (A)</p> Signup and view all the answers

How has the skeletal carbonate mineralogy of reef-building organisms varied through time?

<p>It has varied depending on the dominant reef-building organisms. (C)</p> Signup and view all the answers

What environmental factor favors carbonate production in the sea?

<p>Shallow water (photic zone) (A)</p> Signup and view all the answers

Which of the following is NOT a component typically found in Reef formations?

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

What type of coral dominates in high energetic environments?

<p>Acropora palmata (D)</p> Signup and view all the answers

Which direction is some of the carbonate transported on the shelf from the sea?

<p>Basinwards (C)</p> Signup and view all the answers

What type of sedimentary environment typically forms on land from carbonate transported from the sea?

<p>Tidal flats (A)</p> Signup and view all the answers

What is a key characteristic of reef formations in terms of topography?

<p>Topographic highs (B)</p> Signup and view all the answers

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