Sedimentary Terms

3. Coarse-grained sandstone that is at least 25% feldspar.
4. Rocks composed of broken pieces of older rocks.
9. “Dirty” sandstone (lithic arenite), poorly sorted, dark colored
10. The fusing together of sedimentary rock via chemical reactions.
12. Rock consisting mainly of carbonized plant-matter.
14. Rock consisting of angular fragments cemented together.
15. The process by which rocks compact under pressure. Compaction and cementation are two methods.
17. A single layer in multiple stacked layers of sedimentary rock.
18. All changes (chemical, physical, and biological) between sediment deposition and metamorphism (up to approximately 200C), including lithification.
19. Rocks near the source of a river will tend to have this type of shape
20. A landform at the mouth of a river formed from the deposition of sediment

1. A mineral that breaks down into potassium, sodium, and calcium.
2. Material that is broken down by processes of weathering and erosion. May be transported via water, wind, ice, and/or gravity.
5. A type of limestone composed of calcite, in the form of the skeletons of microscopic organisms.
6. The breaking down of rocks through contact with the atmosphere, biological organisms, and water. Two types are physical and chemical.
7. The process by which a sediment progressively loses its porosity due to the effects of packing.
8. The theory that changes in the earth’s crust over time are the result of continuous and uniform processes. In other words, the present provides clues into the past.
11. A rock with a large grain size is said to be
13. The process by which sediment is removed from one location and deposited into another (via water or wind).
16. A coarse grained sedimentary rock composed of rounded fragments (> 2 mm), with a matrix of finer grained material.