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Vocabulary
Science
Term | Definition |
---|---|
Rock cycle | The continuous process by which rock type changes into other rock type |
Igneous rock | Rock that forms when magma ,Lara cools and solidifies h |
Metamorphic rock | Rock that forms when texture or composition of existing rock changes due to heat or process |
Uniformitarism | A principle that geologic process that occurred in the past can be explained by current geologic processes |
Catastrophism | A principle that states that geologic change occurs suddenly |
Paleontology | The scientific study of fossils |
Sedimentary rock | A rock that forms form compressed or cemented layers of sediment |
Relative dating | Any method of determining whether an event or object is older or younger than other events or objects |
Superposition | A principle that states that younger rocks lie above older rocks if the layers have not been disturbed |
Absolute dating | Any method of measuring the age of an event or object in years |
Radioactive dating | A method of determining the absolute age of an object by comparing the relative percentages of a radioactive (parent) isotope and stable (daughter) isotope |