When deposits of silt are compressed and the grains are pressed together, rocks such as siltstone form.
Siltstone is a potentially valuable by-product material from de-silting of riverbeds as means of flood aid.
2 Matching Annotations
- Jul 2022
-
education.nationalgeographic.org education.nationalgeographic.org
-
- May 2022
-
www.youtube.com www.youtube.com