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A fold in rock that bends upward into an arch is called what?
An anticline
An upfold in rock layers?
== == An upward fold in a rock formation is called an anticline.
According to the law of superposition the lowest layer in a cross section of rock is what?
is the oldest
When principle states that the oldest rock layer is found at the bottom in an undisturbed stack of rock layers?
It is called Superposition.
Which layer of rock is the oldest?
The basement is a term sometimes used, and Cratonis another used in a continental context.The Principle of Superposition has it that in a given formation, the top layers are the youngest, and the deeper layers the oldest.
What kind of stress causes a anticline?
anticlines are caused by extensional stress on the rocks, and syncline is caused by compressional stress. The stress is always pushing from the oldest layer of rock toward the youngest layer of rock, so in an anticline, where the oldest rocks are in the center of the rock fold, they push outward toward the younger rocks. In a syncline the youngest rocks are in the center of the fold and the oldest rocks are on the outer edge, the older rocks push inward toward the youngest rock.
Upwarding-arching rock layer?
An upwards arching layer of rock is known as an anticline.
Upward arching rock layer?
An upwards arching layer of rock is known as an anticline.
A fold in which the oldest rock layers are in the center of the fold is?
If rocks are folded, the folding is younger that the youngest rock affected. If they are folded into a syncline (a U-shaped fold) the youngest rocks are in the core of he fold. The opposite is true for an anticline (a big dome-shaped fold).
Which rock layer is the oldest and why?
the bottom one
What layer of a rock in a mountain is the oldest?
at the bottom
How would you know which is the oldest layer in a rock?
You would know because the youngest rock layer is always on the top, and the oldest is always at the bottom of the canyon.
What is an upward fold called?
An anticline is a convex fold in a rock structure.
What is the name for the bottom oldest layer of rock?
The bottom layer of rock in a geologic sequence is usually called the basement layer.
How would you know which rock layer in a canyon is the oldest?
You would know because the youngest rock layer is always on the top, and the oldest is always at the bottom of the canyon.
A fold in rock that bends upward into an arch is called what?
An anticline
Superposition can best be explained new layer on old layer?
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.
