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The youngest rock layer in a geological sequence is typically the one that has not been disturbed by faults or intrusions. When a fault occurs, it displaces the rock layers, indicating that the fault is younger than the rocks it cuts through. Similarly, an igneous intrusion forms when magma penetrates existing rock layers, making it younger than the surrounding sedimentary rocks. Thus, both faults and igneous intrusions are younger than the rock layers they affect.

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How does the age of a rock layer compare with an igneous intrusion that is through it or an igneous rock extrusion above it?

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.


What geologic law is applied if an igneous intrusion is observed through a layer of sedimentary rock?

The principle of cross-cutting relationships is applied in this case. It states that the intrusion must be younger than the sedimentary rock it cuts through, as the igneous rock is "cutting across" pre-existing layers. This helps in determining the relative ages of the rocks involved.


What is an intrusion in science terms?

Intrusive is a term that applies to igneous rocks that form from magma underground such as granite.


Where is this stated A fault or intrusion is younger than the rock it cuts through?

This statement refers to Steno's Principle of Superposition, which states that in an undisturbed sequence of rock layers, the youngest layer is on top and the oldest is on the bottom. Therefore, any fault or intrusion cutting through these layers must be younger than the rock it is cutting through.


How can igneous rock disturb sedimentary rock layers?

Igneous rocks can disturb sedimentary rock layers and formations by their movement during ascent through such layer. when they make contact with this sedimentary rocks they could result to folding and/or metamorphism.


Is the fault older or younger the rock layer A Explain?

To determine whether the fault is older or younger than rock layer A, we can use the principle of cross-cutting relationships. If the fault cuts through rock layer A, it is younger than that layer, as it must have formed after the rock was deposited. Conversely, if rock layer A is found to be disrupted by the fault, then the fault is older. Therefore, examining the relationship between the fault and rock layer A is key to establishing their relative ages.


Earth science define cross cutting?

Sometimes magma pushes, or intrudes, into cracks in existing rocks. When the melted rock cools and solidifies, the resulting feature is called an igneous intrusion. This image shows metamorphic rock in Death Valley, California, cut by a darker igneous intrusion. The principle of cross-cutting relationships states that an igneous intrusion is always younger than the rock it cuts across.


What is the hardened layer of lava called?

The hardened layer of lava is called "igneous rock".


Which layer device is IDS?

Actually, an IDS does not sit on one particular layer. It has to examine packets for protocols, how they are being transported, number of packets transmitted, spoofing information, and application layer information. In general terms, Intrusion detection system and Intrusion prevention system is a Layer 4 device. It filters for malicious data.


What is the breaking of rock layer?

fault


What are 3 examples of scientific law?

1) The Law of Original Horizontatlity: assumes that sedimentary rocks and some extrusive igneous rocks form inhorizontal layers parallel to Earth's surface.2) The Law of Superposition: The layer on top is the younger than the layer beneath it andvise versa3) TheLaw of Intrusion: When magma intrudes or cuts theough, the formed igneous rocks is the youngest.


Why is igneous rock always younger than the rock layer it cuts through?

Igneous rock is always younger than the rock layer it cuts through because of the principle of cross-cutting relationships in geology. When magma intrudes into pre-existing rock layers and solidifies, it disrupts those layers, indicating that the intrusion occurred after the formation of the surrounding rock. Therefore, any igneous rock that penetrates or cuts through sedimentary layers must be younger than those layers. This principle helps geologists determine the relative ages of rock formations.