the bottom one
In a normal sequence (ie one that has not been tectonically deformed) the oldest layer is the lowest layer - so the one at the base of the sequence is the oldest. This is called the "law of superposition".
disconformitiesangular unconformitiesnonconformities
Unconformity
If it is above it, the rock layer came after the intrusion. if the intrusion went through the rock layer is older because they layer had to be there in order for the intrusion to go through.
yes
at the bottom
You would know because the youngest rock layer is always on the top, and the oldest is always at the bottom of the canyon.
The bottom layer of rock in a geologic sequence is usually called the basement layer.
You would know because the youngest rock layer is always on the top, and the oldest is always at the bottom of the canyon.
Superposition is the theory that the rock layer that is on top is the youngest and the layer of rock on the bottom is the oldest.
false
In a normal sequence (ie one that has not been tectonically deformed) the oldest layer is the lowest layer - so the one at the base of the sequence is the oldest. This is called the "law of superposition".
states that the lowest rock in layers is the oldest and the highest is the youngest rock layer
is the oldest
Relative dating
In normal circumstances, Yes. that is what the law of superposition says.
the oldest layer is made of fgh a type of cavemen pets formed from sub. teachers beating the kids pets