---conformity
a surface of erosion between two rock layers
unconformity
break down of rocks into sediments
weathering
rock made from compacted sediments
sedimentary
View that geologic features are the result of large catastrophes
Catastrophism
study of human life using preserved artifacts
Archaeology
an unconformity where the layers are tilted
angular unconformity
rocks smashing into each other at the beach is an example of _________________ weathering.
physical
rock made from volcanic activity
igneous
Uniformitarianism
paleontology
surface of erosion between sedimentary layers
disconformity
Acid reacting with rocks is an example of _____________ weathering.
chemical
rock made from existing rocks with more heat and pressure
metamorphic
causes erosion underground
groundwater
Age based on a date printed on it or historical reference
Known age
unconformity where sedimentary rock is found above metamorphic or igneous rock
nonconformity
break down and transport of sediments
erosion
underground molten rock
magma
buildup of sediments on the floor of a cavern
stalagmite
Age calculated using a dating method
Absolute age
an assumed unconformity even if there isn't physical evidence for it
paraconformity
Name one thing you can do to reduce erosion?
Crystalline material that rocks are made up of
minerals
buildup of sediments on the ceiling of a cavern
stalactites
Principle that states that deeper layers are older
Superposition