| Term | Definition |
|---|
| lithification | The process that converts sediments into solid rock by compaction or cementation. |
| magma | molten rock |
| lava | magma that reaches Earth's surface |
| aa | rough jagged lava found in Hawaiian volcanos |
| pahoehoe | A type of lava with low viscosity that may continue to flow as it cools and stiffens, forming smooth, glassy-surfaced, wrinkled, or "ropy" ridges |
| volcanic bomb | A large lump of lava thrown out of a volcano during an eruption. A bomb usually starts as a flying blob of lava but solidifies as it falls to the ground. |
| volcanic block | the largest possible pyroclastic material that is formed from solid rock blasted from a volcanic fissure |
| sediments | loose materials such as rock fragments, mineral grains, and bits of shell that have been moved by wind, water, ice, or gravity |
| unconformity | break in the geologic record. when rocks are eroded or when sediment is not deposited for a long time. |
| disconformity | two parallel adjacent sedimentary layers that are of substantially different age |
| nonconformity | an unconformity in which older metamorphic or intrusive igneous rocks are overlain by younger sedimentary strata |
Combine with other sets
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