Across
- 4. Small pieces of rock, minerals, or shells that come from weathered rock.
- 5. A gap in the rock record that shows missing time caused by erosion or lack of deposition.
- 6. A type of unconformity where erosion removes part of flat rock layers before new layers form on top.
- 7. intrusion When melted rock pushes through existing layers and cools to form igneous rock.
- 8. boundary A place where two tectonic plates collide, often creating mountains.
- 10. The process that presses and cements sediments into solid rock.
- 11. The remains or traces of an ancient organism preserved in rock.
Down
- 1. The movement of sediment from one place to another by wind, water, or gravity.
- 2. When sediment stops moving and settles into new layers.
- 3. The breaking down of rocks into smaller pieces by wind, water, or temperature changes.
- 9. plate A large, rigid piece of Earth’s crust that moves slowly over the mantle.