In the deep ocean, the initial core sample layer would consist of a pasty ooze, unlithified, consisting mainly of organic matter. After that, it would pretty much be basalt, an igneous rock.
Core-top samples are sediments collected from the surface layer of the seafloor or lake bed, typically used in geological and environmental studies. They provide valuable information about recent sedimentation processes, the current state of the ecosystem, and can serve as a reference for understanding changes over time. These samples are often analyzed for various parameters, including chemical composition, biological content, and physical characteristics, to assess environmental conditions and historical climate changes.
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The concept you are referring to is called the principle of superposition in geology. It states that in an undisturbed sequence of rock layers, the youngest rocks are at the top and the oldest are at the bottom.
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Stratigraphic section. page 37 in exploring geology.
Core-top samples are sediments collected from the surface layer of the seafloor or lake bed, typically used in geological and environmental studies. They provide valuable information about recent sedimentation processes, the current state of the ecosystem, and can serve as a reference for understanding changes over time. These samples are often analyzed for various parameters, including chemical composition, biological content, and physical characteristics, to assess environmental conditions and historical climate changes.
Core samples would reveal that the further from the mid-ocean ridge you go, the greater the overlying sediment on top of the basaltic crust. This would indicate that the crust closer to the ridge was younger and more recently formed. The creation of new crust at mic-ocean ridges is the crucial evidence for the movement of tectonic plates.
whatever are you talking about?
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None, the outer core sits directly on top of the inner core.
The outer core is less dense than the inner core, and therefore floats on top of it.
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The inner core in the middle on top of that is the outer core then the mantle and then the crust
-from top to bottom- Lithosphere Asthenosphere Outer core Inner Core
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Surrounding the inner core of the Earth is the outer core. Surrounding that is the mantle. And floating on top of that is the crust.