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Figure 5.4. Detail of soilstone crust from quarry on Long Key (Florida Keys) showing normal brown laminations between two blackened laminae. Top black layer (arrow) is discontinuous. Basal black layer grades to normal brown color at right where layer enters depression in underlying rock. Unblackened portion of this layer was protected from fire in depression.

Return to: Field Observations and Some Experimental Results | Discussion

U.S. Department of the Interior, U.S. Geological Survey
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Last updated: 09 December, 2004 @ 01:43 PM(TJE)