Cards in this guide (17)
According to the principle of cross-cutting relationships an intrusive rock body is
Younger than the rock it intrudes into
What are eras divided into
The constituent time segments are epochs and periods, which are
further divided into ages.
What do you call mountains formed by blocks of crust moving along a fault
What is fossil succession
Fossil organisms succeed one another in a definite and
determinable order, and therefore any time period can be recognized
by its fossil content.
-organisms evolve, and organisms become extinct.
Proposed by William Smith late 1700's and early 1800's
Radiometric dating is possible because the rates of decay of radioactive isotopes
Which era immediately follows the Precambrian
All changes in the original shape and or size of a rock body are called
Folding is usually the result of what type of stress
What likely contributed to the extinction that marks the end of the Mesozoic Era
What is the name of the doctrine that states the physical chemical and biological laws that operate today have also operated in the geologic past
The major forces that form folded mountains are
What does the radiometric date of metamorphic rock most likely represent
heated during metamorphism
Which parts of animals are rarely preserved unburied because scavengers eat them and bacteria decompose them
The muscles and ligaments of an animal will be subject to
scavengers or decomposition. The organs and fat will be as
well.
Which item could be dated using radiocarbon dating
A 60,000 year old mammoth bone.
Which is a true statement about the process of accretion
It enlarges continental landmasses and forms mountains along the
edges of continents.
What type of mountain ranges form at convergent plate boundaries
Folded and volcanic mountains
What is the continental crust like in young mountainous regions
