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Answer :

Answer:

The sources of sediment in the Pottsville Formation were to the southwest, in the Ouachitas,19 and eastward and northeastward, in the Appalachians. Talk about sweet revenge! The very mountains that made the basin sink were being eroded by rivers, and their broken bits went to fill the basin up.

Explanation:

The type of environment in which the sedimentary rocks of the Pottsville formation form is:

  • A place with vast coal swamps and tidal flats

What is Sedimentary Rock?

This refers to the type of rock which is formed from the lithification and accumulation of mineral deposits in the Earth's surface.

With this in mind, we can see that the type of environment in which the sedimentary rocks of the Pottsville formation formed was in the vast coal swamps and tidal flats.

Read more about sedimentary rock here:
https://brainly.com/question/13291293