Clastic rock
it formed from ancient sand dunes.
sand dunes
Desert sand dunes :)
A sedimentary rock is made from the products of the erosion of other rocks. These could be igneous, sedimentary or metamorphic rocks. If you wish to know the original rock from which sedimentary and metamorphic rocks came from, you have to go back to when the Earth formed. In this case, the answer would be an igneous rock.
Cross-bedding refers to inclined layers in sedimentary rock that were formed as a result of wind or water driven ripples or dunes in the original depositional environment.
Sedimentary rocks and metamorphic rocks of sedimentary origin.
Sandstone and compacted dunes.
I believe that the answer is Sedimentary
Sand dunes are formed by wind, which is one kind of erosion.
Sand dunes are formed by wind, which is one kind of erosion.
Sand dunes are not formed by the process of erosion, they are formed by the process of aeolian deposition.
Sand dunes are likely to be in a desert