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Is the layer of rock at the bottom of a sedimentatry rock younger or older?
Wiki User
∙ 13y ago
Older.
Wiki User
∙ 13y ago
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Brief note on the law of superposition?
It is a law that the higher the rock layer is the younger it is. The deeper it is the older the rock layer is.
What does mean phrase younger over older in geology?
In layers of rock, the oldest rock will always be at the bottom. This is because it was laid down first. The rock gets "younger" as you go toward the surface, with the most recent layer the one that is exposed.
What evidence did cross-cutting relationships give geologists?
Cross-cutting can give insight to whether or not a certain layer is older or younger than what is cross-cutting it. Say if a dike was cross-cutting layer A, then layer A is older than the dike.
What law suggests that older rock strata are at the bottom and younger rock strata are at the top?
Law of Superposition
How are the laws of superposition and crosscutting relationships used to determine the age of rocks?
They are used to determine the relative ages of rocks by stating that younger rocks lie above older rocks, and that rocks that cut through a layer are younger than the existing layer.
Is the fault older or younger than rock layer A?
older because it is at the bottom and the ones on top are younger than the bottoms
If middle layer of rock is 120 million years old what can be said about above and below layer?
top will be younger bottom older
Could you tell me something about realative ages of rocks for a project please?
When you look at a rock that has undisturbed layers, the bottom layers are older and the upper layers are younger. Anytime a rock layer crosses another (ie. an intrusion), the crossing layer is younger.
Is the fault older or younger than the layers?
older because it is at the bottom and the ones on top are younger than the bottoms
In general the law of superposition states that in an undeformed sequence of sedimentary rock each layer is?
Younger than the layer below it.
Brief note on the law of superposition?
It is a law that the higher the rock layer is the younger it is. The deeper it is the older the rock layer is.
What does mean phrase younger over older in geology?
In layers of rock, the oldest rock will always be at the bottom. This is because it was laid down first. The rock gets "younger" as you go toward the surface, with the most recent layer the one that is exposed.
In undisturbed rocks The older rock on the bottom and the younger of the rocks are on top?
yes.
Do you find older rock above or below younger rock?
The law of superposition states: in horizontal rock layers, each layer is older than the one above it and younger than the one below it.
Is an extrusion older or younger than the rock layer below it?
Extrusion is older than intrusion because, an extrusion is always younger than the rocks below it. An intrusion is always younger than the rock layers around and beneath it. Hope the answers correct ;)
What evidence did cross-cutting relationships give geologists?
Cross-cutting can give insight to whether or not a certain layer is older or younger than what is cross-cutting it. Say if a dike was cross-cutting layer A, then layer A is older than the dike.
Why is older skin different from younger skin?
Older skin forms a dead outer 'horny' layer that helps protect the inner epidermis and dermis.
