Across
- 2. inorganic crystalline substances found naturally in the earth
- 4. the "veins" of igneous rock that run in the same direction of the strata of the sedimentary rock
- 6. sand, silt, and other components of soil
- 9. the "veins" of igneous rock that run perpendicular to the strata of the sedimentary rock
- 10. layers
- 11. a surface of erosion that separates one layer of rock from another
- 12. unconformity an unconformity where the rocks below are tilted relative to the rocks above
- 13. separation between stratified layers and unstratified layers
- 17. the view that most of earth's geological features are the result of slow, gradual processes that have been at work for millions or even billions of years
- 18. several lamination layers formed right next to each other
- 20. the process by which sediments and rock fragments are carried away by wind or rain
- 23. a structure rising from the ground of a cavern formed by groundwater dripping and leaving sediment on the ground where it dripped
- 24. a structure formed in a cavern when a stalactite and a stalagmite meet and form a single structure
- 25. having a very sharp, geometric shape
- 27. an icicle-like structure hanging down from the ceiling of a cavern formed by groundwater dripping and leaving sediment on the ceiling
- 28. rock rock that forms from molten rock (magma, lava from volcanoes)
Down
- 1. the view that most of earth's geological features are the result of large-scale catastrophes such as floods, volcanic eruptions, etc.
- 3. unconformities where there are parallel, stratified rock layers above and below the unconformity, but a clear surface of erosion between them
- 4. rock rock that is formed from sediments which are laid down by water or some other agent and fuse together due to heat, pressure, and various chemical reactions
- 5. rock rock that has undergone extreme change due to lots of heat and pressure
- 7. arranged in layers
- 8. unconformities where geologists believe there is an unconformity but cannot identify it
- 14. open space underground where groundwater has eroded the rock
- 15. "veins" of igneous rock shooting right through several layers of sedimentary rock, formed when magma from underneath the sedimentary rock gets injected in the cracks of the sedimentary rock
- 16. a single layer of rock that is less than 1 centimeter (0.39 inches) thick
- 19. did not come from a living being
- 21. water that flows underground
- 22. the process by which rocks are broken down by the forces of nature
- 26. the decayed remains of once-living creatures