How does its presence in the Central Valley of mid-ocean ridges support the idea of sea floor spreading?

How does its presence in the Central Valley of mid-ocean ridges support the idea of sea floor spreading?

Scientists have found strange rocks shaped like pillows in the central valley of mid-ocean ridges. Such rocks can form only if molten material hardens quickly after erupting under water. The presence of these rocks supports the theory of sea-floor spreading.

How does the seafloor form at the mid-ocean ridge?

Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.

How does evidence that seafloor rocks farther from a ridge?

Explain how ocean floor data led early oceanographers and geologists to propose the hypothesis of seafloor spreading. By doing this, researchers found that the ages of the sea-floor rocks were also symmetrical on both sides of the ridge, with the youngest rocks near the center and the oldest rocks farther away.

What provides evidence of sea floor spreading?

The age of Earth’s oceanic crust can be presented to show the pattern of seafloor spreading at the global scale. Encyclopædia Britannica, Inc. Measurements of the thickness of marine sediments and absolute age determinations of such bottom material have provided additional evidence for seafloor spreading.

What does the presence of new rock near an oceanic ridge?

Ridges form along cracks (divergent boundaries) in the oceanic crust (Molten rock (magma) rises through these cracks and pushes to both sides. When it cools, it forms new oceanic crust. The old crust is pushed away and new crust takes over. This is called Sea-Floor Spreading.

Does molten material erupt inside the central valley of mid-ocean ridges?

Molten material erupts INSIDE the central valley of mid-ocean ridges. The farther from a mid-ocean ridge a rock sample is taken, the YOUNGER the rock is. Sea-floor spreading occurs at MID-OCEAN RIDGES. The pattern of magnetic stripes in rocks on either side of a mid-ocean ridge is THE SAME.

Where along a mid-ocean ridge system would you expect the most earthquakes to occur?

Which of the following statements is/are true regarding offsets in the mid-ocean ridge system? – Offsets occur where two plates slide past each other. – Segments of a mid-ocean ridge are initially aligned. Transform faults form when different segments spread at different rates.

Why are rocks next to the mid-ocean ridge younger than the rocks that are farther away from the mid-ocean ridge?

The scientists found that the farther the rocks the older the rocks were,so the youngest rocks were found near the mid-ocean ridge. This showed that sea-floor spreading took place because that fact that rocks were because pushed out showed us that the sea-floor was spreading.

What can you say about the ages of the oceanic rocks near the mid ridge do the ages of oceanic rocks get older as you move away from the ridge?

Answer: The newest, thinnest crust on Earth is located near the center of mid-ocean ridge—the actual site of seafloor spreading. The age, density, and thickness of oceanic crust increases with distance from the mid-ocean ridge. Eventually, older oceanic crust encounters a tectonic boundary with continental crust.

When examining rocks from both sides of the Mid-Atlantic Ridge scientists found evidence for the phenomenon of?

2. Examining rocks that form on either side of the Mid-Atlantic Ridge provides evidence of plate movement that supports the theory of plate tectonics.