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How do geologists know that an intrusion is younger than layers it cuts across?
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Is an intrusion younger than its surrouding rock layers?
An intrusion is younger than its surrounding rock layers. An intrusion needs another rock to cut through it, which is referred to as a cross-cutting relationship.
What clues does extrusion tell geologists?
Geologists study where intrusion and extrusion formed in relation to other rock layers. This helps geologists understand the relative ages of the different types of rock! Hope it helps;)😊
How do you know that an intrusion is younger than its surrounding rock layers?
younger over older is a phrase you can use to remember this principle.
What are the relative ages of igneous intrusion and overlying sedimentary rock layers that dome upward?
The intrusion is younger than the overlying sedimentary rock.
What is the age of an igneous intrusion in relation to the sedimentary rock layers it passes through?
It is younger than them.
What is the age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passed?
It is younger.
What is the The age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passes?
It is younger.
What is it called when rock forces itself between rock layers and is always younger then ones around it?
An intrusion (:
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 ;)
An igneous intrusion that cuts across rock layers is called a?
A discordant intrusion is known as a dyke. A larger intrusion may also be a pluton or batholith, which both also cut across rock strata. A sill is an intrusion which is concordant, and goes between the strata. This does not necessarily mean that it is horizontal.
If a dike is present within a rock outcrop what is its age relationship with the other rock layers?
Any igneous dike or intrusion is younger that the surrounding rock layers.
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.
