Carbonate Mud in Sedimentary Rocks

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What is the equivalent of carbonate mud in terrigenous rocks?

Sand

Quartz

Aragonite

Clay (correct)

What are the needle-shaped crystals dominant in modern lime mudstone environments made of?

Calcite

Quartz

Aragonite (correct)

Feldspar

What size range do the micrite crystals typically fall within?

1 to 4 cm

1 to 4 mm

4 to 8 um (correct)

8 to 12 um

What minerals can lime mudstone contain in small amounts?

Clay minerals Signup and view all the answers

How does SEM studies describe the micrite in carbonate mud?

With areas of finer and coarser crystals Signup and view all the answers

What is the main mineralogy of modern marine shelf carbonate mud?

Aragonite and high-Mg calcite Signup and view all the answers

What does the presence of sparry calcite cement in intergranular pore spaces indicate?

Deposition under agitated-water conditions Signup and view all the answers

What process produces lime mud in variable or limited quantities?

Biochemical precipitation through microbial photosynthesis and decomposition Signup and view all the answers

What does the presence of micrite in an ancient limestone commonly indicate?

Deposition under quiet-water conditions Signup and view all the answers

What is the main composition of cement infill of primary porosity (intergranular)?

Sparite-sparry calcite Signup and view all the answers

Carbonate Mud in Sedimentary Rocks

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Questions and Answers

What is the equivalent of carbonate mud in terrigenous rocks?

What are the needle-shaped crystals dominant in modern lime mudstone environments made of?

What size range do the micrite crystals typically fall within?

What minerals can lime mudstone contain in small amounts?

How does SEM studies describe the micrite in carbonate mud?

What is the main mineralogy of modern marine shelf carbonate mud?

What does the presence of sparry calcite cement in intergranular pore spaces indicate?

What process produces lime mud in variable or limited quantities?

What does the presence of micrite in an ancient limestone commonly indicate?

What is the main composition of cement infill of primary porosity (intergranular)?

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