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What is the age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passes?
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
An _________ is when the magma cools and hardens into a mass of igneous rock.
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
The study of rock layers is called
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
A(n) ___________ is a gap in the geologic record where some rock layers have been lost because of erosion.
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
The relative age of a rock is
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
A rock layer's ___________ age is its age compared to the ages of other rock layers.
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
A break in the Earth's crust caused by forces inside the Earth is called a(n)
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
A(n) _________ fossil is a fossil that must be widely distributed and represent a type of organism that existed only briefly.
stratigraphy
index
unconformity
always younger
fault
its age compared to the ages of other rocks.
relative
intrusion
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