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Is the layer of rock at the bottom of a sedimentatry rock younger or older?
Older.
What law suggests that older rock strata are at the bottom and younger rock strata are at the top?
Law of Superposition
What is a igneous extrusion?
Lava that hardens on the surface, and are younger than the rock layers below.
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.
When studying a stack of rock layers the layers are usually toward the bottom and the layers are usually toward the top?
Older ; Younger . 1 (; N.R.C.J
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 ;)
Is the layer of rock at the bottom of a sedimentatry rock younger or older?
Older.
What do an intrusion and an extrusion tell us about the rock layers?
(Intrusion) You can learn how old the rock layers are around it. the rock layers around under and all around the intrusion are always older than the intrusion itself. (EXTRUSION) the layers of rock bellow the extrusion is older than the extrusion.
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
What clues does extrusion give geolgists?
That the cutting rock is younger than the cut rock.
In undisturbed rocks The older rock on the bottom and the younger of the rocks are on top?
yes.
What law suggests that older rock strata are at the bottom and younger rock strata are at the top?
Law of Superposition
How does the age of an igneous extrusion compare with the rock into which it was extruded?
An igneous intrusion is younger than the rock into which it intruded.
What is a igneous extrusion?
Lava that hardens on the surface, and are younger than the rock layers below.
How extrusion forms?
An extrusion is an igneous rock layer formed when lava flows onto Earth's surface and hardens. Extrusions are always younger than the rocks below it.
How could you tell an older rock from a younger rock just by looking at their isochrons?
You could tell an older rock from a younger rock by looking at it because the older rock isochron would have a steeper slope.
Intrusions of the igneous rock are younger or older than the rock layers beneath and surrounding them?
they are younger and extrusions are older. they are younger because the surrounding rock layers had to have been there first in order for it to appear. :)
