Which rock type is associated with a high-energy environment (such as a very turbulent stream)?

Question

conglomerate
shale
both
or none?
thank you for all your help.

Answer 1

Conglomerate.

Think of a mountain stream, a typical high-energy environment. The stream bed is composed of larger rocks, since smaller clasts will be carried in the stream's suspended load, leaving only the larger rocks. The steam bed can (eventually) form a conglomerate.

Shale is composed of finer grains. Therefore, this indicates a very low-energy environment - low enough that there was not enough energy to to suspend the tiny clasts.

Hope that helps!

Answer 2

Not shale.

The smaller the grain size of a sedimentary rock the lower the energy of the environ it wass deposeted in.

So for a river coarse sands and gravels, cobbles and boulders.

So to answer your Q conglomerate, which is a sedimentary rock composeed of fragments of other rocks.

Clays and silts need nice calms water in order to settle out in like an estuary.

Answer 3

None. A high energy environment implies mountains/volcanos so normally would be associated with igneous or metamorphic rocks.

Answer 4

smooth river rocks

Answer 5

I would say... shale. I say that because it is always near waterfalls...