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Question

Question

The diagram above shows several rock layers and other geologic features. Each feature is labeled with a unique letter. The order of the letters do not necessarily reflect the order in which the features formed. Examine the diagram, and answer the question that follows. Using the principles of original horizontality, superposition, and cross-cutting relationships, determine which of the following features is the youngest.

(1 point)
Responses

N
N

G
G

R
R

H

Answer 1

To determine which feature is the youngest using the principles of original horizontality, superposition, and cross-cutting relationships, you would typically evaluate the order and relationships between the layers and features depicted in the diagram.

1. Original Horizontality: Sedimentary layers are originally deposited horizontally. If layers are found at an angle, they must have been deformed after their deposition.
2. Superposition: In an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom, and the youngest are at the top.
3. Cross-Cutting Relationships: If one geological feature cuts across another, the feature that has been cut is older than the cutting feature.

Without the diagram, I can guide you on how you would proceed:

• Check which feature of N, G, R, or H cuts through other features—this one would likely be the youngest.
• If one of these features is found on top of the other features, it is also the youngest.
• Compare the layers’ positioning; the one located at the highest stratigraphic position can indicate it is younger.

If you follow these principles using the diagram you have, you should be able to identify the youngest feature among N, G, R, and H. If you need further assistance or are able to provide more details, I can help refine the answer.