Processes
What process carved the Grand Canyon?
Erosion from the river
What rock type CANNOT contain fossils?
Igneous
What kind of fossils convey the relative age of the strata they are found in?
Index fossils
The trace or remains of an organism that lived long ago
Fossil
Faults or intrusions are younger than the rock they affected?
Cross cutting relationships
What process is the braking down of rock by rain, ice, acid or plants?
Weathering
These were once igneous or sedimentary rocks, but have been changed by intense heat and/or pressure
Metamorphic
Give an example of trace fossils
Footprints, nests, burrows
What geological process results from molten rock erupting to the earths surface and forming plateaus, bombs or ash
Volcanism
in an undisturbed sequence of sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. Law of ________
Superposition
The process of finding out when an event happened either by comparing to other events or finding the approximate year it happened?
Dating
When sediment is removed from an area then transported and deposited somewhere else, what has happened?
Erosion
What fossil is buried in sediment and then decays leaving behind empty space
Mold
Which kind of dating is a comparison?
Relative
a system that organizes Earth's history into a chronological timeline, dividing it into eons, eras, periods, and epochs based on major geological and biological events. GTS
Geological times scale
Geologic processes that happened in the past can be explained by current geologic processes. (Dating, Uniformitarianism or Dating)?
Uniformitarianism
What kind of sedimentary rock forms from broken down animals that lived in the ocean? Coal, Sandstone, Pumice or Limestone
Limestone
For a cast fossil, what can fill the space left when an organism decays?
Minerals
Name 2 substances that can trap the remains of an organism and produce preserved actual remains
Ice, Amber, Tar
The longest distinct period of history with a particular feature or characteristic (Epoch, Era, Eon, Period)
Eon