Geological Time Crossword

Earth processes occurring today are similar to those that occured in the past.
States that sedimentary rock layers are laid down in horizontal layers and so if they are titled something has disturbed them.
The geological principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
A principle that states that an igneous rock, fault, or other geological feature must be younger than any rock across which it cuts.
A principle that states that an inclusion (any material trapped inside a mineral as it forms) must be older than the rock it is enclosed in.
A place where an old, eroded rock surface is in contact with a newer rock layer.
A type of rock that forms from the cooling of molten rock at or below the surface.
An igneous rock layer formed when lava flows onto earth's surface and hardens. 3 common types include basalt, pumice, and obsidian.
An igneous rock layer formed when magma hardens beneath earth's surface. 3 common types include sills, dykes, and batholith.
Term that refers to layers of sedimentary rock.
A break in earth's crust where movement has occurred.
A system of chronological dating that relates geological strata to time. It is used by geologists, paleontologists, and other earth scientists to describe the timing and relationships of events that have occurred during earth's history.
The largest division of geological time.
A subdivision of an eon on the geological time scale.
A subdivision of an era on the geological time scale.
A subdivision of geologic time that is longer than an age but shorter than a period.
The smallest subdivision of geologic time.
A drill core of ice that can help tell the climates of the past.
A term that typically describes a species that no longer has any known living individuals.