Which pattern describes the ages of ocean rocks based on core samples from the ocean floor?
A. Younger rocks are colder and are located closer to subduction zones.
B. Younger rocks are warmer and are located closer to subduction zones.
C. Younger rocks are colder and are located closer to mid ocean ridges.
D. Younger rocks are warmer and are located closer to mid ocean ridges
D. Younger rocks are warmer and are located closer to mid ocean ridges
C. Younger rocks are colder and are located closer to mid ocean ridges.
To find the answer to this question, we need to examine the pattern of ages of ocean rocks based on core samples from the ocean floor. One way to do this is by understanding the process of plate tectonics and the formation of oceanic crust.
The age of ocean rocks can be determined through radiometric dating of the minerals within the rocks. As new oceanic crust is formed at mid-ocean ridges, molten rock called magma rises up from the mantle and solidifies to create new crust. This process, known as seafloor spreading, results in the continuous formation of new oceanic crust along the mid-ocean ridges.
As the oceanic crust moves away from the mid-ocean ridges, it cools down over time. This cooling process is influenced by the lithospheric plates and the underlying asthenosphere. Younger rocks, therefore, are closer to the mid-ocean ridges where they were formed and have not had as much time to cool down.
Considering these factors, the correct answer is C. Younger rocks are colder and are located closer to mid-ocean ridges.