This layer of nearly molten rock that lies beneath the Earth's crust is called the <u>mantle.</u><u />
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Answer:
The answer is Option C: Index fossils.
Explanation:
Index fossils are used to identify geologic periods or faunal stages in rock layers. These fossils must have a wide geographic distribution and manifest obvious evolutionary trends to help geologists and others who need this geological data to better understand the time scale and to pinpoint a time period. For example, ammonites were common during the Mesozoic Era, but they were extinct by the Cretaceous period. Geologists would use ammonites to help determine this time frame if present.
Answer:
after
Explanation:
The rock inclusions are older than the rock that is surrounding them. In this case, we have a rock inclusion that is dated to 56 Ma. It is an inclusion in basalt. This means that the lava flow, as it was moving in that area managed to get the rock inclusion, and as the lava started to cool off, it consolidated and trapped the rock inclusion in it for time to come. This makes up for a very interesting appearance of the rocks, as there is the basis, being all from the same type of mineral, and then inside of the uniform rock mass, there is a totally different smaller piece of rock sticking out.
I think the answer is "physical"
hope this helps ! :D
