Periphyton flakes

Marl prairies are hard to define:

During winter they have the sound and feel (although not the taste) of a floor full of corn flakes poured fresh from the box.  Or in other words, very dry and crunchy.

January 2011

The same analogy applies for summer with the exception that the metaphorical cereal is now soaking wet in a bowl and all turned to mush: 

“Splish, splosh, squish, squash.”

(And yes, the part about the taste still doesn’t apply.)

September 2010

Only the process is reversed:

That cracker-style marl is actually spongy periphyton left out in the sun and gone dry.

(After all, nobody in their right mind would eat it!)

Both photos were taken within the same prairie.

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