Here's why:
* Conglomerates form from the cementation of rounded and/or angular fragments. These fragments can be derived from various sources, including:
* Pre-existing rocks: These can be broken down by weathering and erosion, producing a wide range of shapes and sizes.
* Volcanic material: Fragments of volcanic rocks can also contribute to conglomerate formation.
* Angular fragments are often found in conglomerates that are formed close to their source. This is because the fragments haven't had a lot of time to be transported and rounded by water or wind.
* The sharpness of the fragments can depend on the type of rock and the intensity of the weathering process. Some rocks are inherently more resistant to weathering than others, leading to sharper fragments.
Therefore, it's possible to find conglomerates with both rounded and angular fragments, or even primarily angular fragments, depending on the specific circumstances of their formation.
