Biology High School

Arrange the rock layers from oldest to youngest. Reexamine the rock outcrops if you need to. Record the order in the Student guide.
Basalt
Limestone with unknown fossil
Sandstone with trilobite
Shale with ammonite

Arrange The Rock Layers From Oldest To Youngest. Reexamine The Rock Outcrops If You Need To. Record The

Answers

Answer 1
It should be sand stone then shale then lime stone and then basalt. This is cause the sand and trilobites were at the bottom of the ocean the shale and ammonite were above them but not above lime. Basalt is last because it’s caused by lava or hot matter cooling quickly in water so lime has to be below basalt yet above sand and shale. The fossil in lime wouldn’t be below trilobites or ammonites because they were some of the first.
Answer 2

Based on the provided information, the rock layers can be arranged from oldest to youngest as follows: shale with ammonite (oldest), Limestone with unknown fossils, Sandstone with trilobite, and basalt (youngest).

This arrangement is based on the principle of superposition, which states that in an undisturbed sequence of sedimentary rocks, the oldest rocks are found at the bottom and the youngest rocks are found at the top. Since the shale with ammonite is mentioned first and the basalt is mentioned last, we can infer that the shale layer is the oldest and the basalt layer is the youngest among the given options.

Learn more about the rock layer here.

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