Focus on Sedimentary Environments

Pleistocene marine carbonate sands

The Miami Limestone, Florida

	Thin section of a sample of Miami Limestone from Big Pine Key. Plane-polarized light. Scale is in mm.
	Other thin sections from different locations:

What is holding the rock together?

Look closely, and see if you can determine the nature of the material between the grains. Is it a matrix or a cement?

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