Question

What does the internal structure of a migrating dune consist of?


A) lee slope

B) crossbeds

C) deflation basins

D) desert pavement

Answer 1

@AloneS can you plz help me?

Answer 2

Is it B?

Answer 3

Hrmm i'm not sure,


@Qwertty123 can you help this dear?

Answer 4

Here: http://geomaps.wr.usgs.gov/parks/coast/dunes/

Answer 5

So it is B?

Answer 6

I think..

Answer 7

The website that you gave me said:

"The repeating cycle of sand inching up the windward side to the dune crest, then slipping down the dune's slip face allows the dune to inch forward, migrating in the direction the wind blows. As you might guess, all of this climbing then slipping leaves its mark on the internal structure of the dune. The image on the right shows fossil sand dune structure preserved in the Merced Formation at Fort Funston, Golden Gate National Recreation Area. The sloping lines or laminations you see are the preserved slip faces of a migrating sand dune. This structure is called cross-bedding, and can be the result of either wind or water currents. The larger the cross-bedded structure, however, the more likely it is to be formed by wind, rather than water."

Answer 8

http://geomaps.wr.usgs.gov/parks/coast/dunes/images/erosion.jpg

This is the picture.

Answer 9

Yes it is B! ^.^

Answer 10

Thank you for helping me! ^^

Answer 11

You welcome ^.^