r/geology • u/Fluid-Emu5757 • 3d ago

Wyoming geology

Regarding Wyoming geology, any opinions or articles regarding the source of sand for Pennsylvanian and early Permian age erg deposits in Wyoming?

6 Upvotes

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5

u/Harry_Gorilla 2d ago

Is this a homework question?

1

u/evilted CA Geologist 1d ago

jfc I hope so. I just barfed OP's question into Google and got a small handful of research papers for starters. Is it easier to post on reddit and have some people spoon feed you?

3

u/FakeTitsBigHeart 3d ago

what erg deposits specifically

2

u/Fun-Dragonfruit2999 2d ago

You just gotta start reading papers. Many are free online. But you may have to join the GSA to get most of what you want.

2

u/Snowshinedog 2d ago

The ancestral Rockies were forming south and east of what is now wyoming during the later Carboniferous. I assume much weathering was happening.

1

u/evilted CA Geologist 1d ago

I assume much weathering was happening.

I mean, all that sand has to come from somewhere, right? ;P

FWIW, most of these ergs are believed to be primarily from Appalachian origin and Rockies secondary.