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Carbonate Geology: Depositional Environments and Platforms

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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?

In the areas of rapid carbonate production Signup and view all the answers

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

Bioherms are mound-like, while biostromes are layered. Signup and view all the answers

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

It has varied depending on the dominant reef-building organisms. Signup and view all the answers

What environmental factor favors carbonate production in the sea?

Shallow water (photic zone) Signup and view all the answers

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

Mangroves Signup and view all the answers

What type of coral dominates in high energetic environments?

Acropora palmata Signup and view all the answers

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

Basinwards Signup and view all the answers

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

Tidal flats Signup and view all the answers

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

Topographic highs Signup and view all the answers