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Chapter 8 Section 1

Across
Igneous rocks that form when magma flows between layers of solid rock and then cools and hardens
Law of ______ relationships states that a fault or intrusion is always younger then the rock it cuts through.
Size of particles sorted from top to bottom. Largest particles are at the bottom
There are _______ types of unconformity
States that geological processes happen the same way they did in the past.
Faults and intrusions make it ______ to tell the relative age
Boundary between two beds is called.
The principle of original horizontality says that if rocks are ______ the horizontal layers remain.
Down
Beds that have an angle to the bedding plane.
Scientist can learn about Earth's past by studying the _________.
Age of an object or event compared to another object or event.
Disturbing rock layers can create________ or a break in the geologic record.
If the crests or tops of these marks point upward, scientist can tell if the rock is undisturbed
Law of _____ is used to determine the relative age of layers of sedimentary rocks.
A break in the Earth's crust, where the rocks shift
Compressed sediments become stuck together in sedimentary rock layers called