Text and Images from Slide
5.4 How does loose sediment become sedimentary rock?
- As sediment accumulates, older sediments compact under the weight of younger sediment atop. Compaction packs grains closer together and permits weak cohesion by electrical attractions.
- Strong sedimentary rocks form by the precipitation of cementing minerals in the spaces between sediment grains. Calcite, quartz, clay minerals, and hematite are the major cementing minerals.