Question

Where a mid-ocean ridge is offset, the linear feature connecting and between the crests of the ridge segments is called a?

Answer 1

When a mid-ocean ridge is offset, the linear feature connecting and between the crests of the ridge segments is called a Transform Fault.

As the Earth's tectonic plates separate, new ocean bottom is generated along divergent plate borders, which are known as mid-ocean ridges. Massive basalt volcanic eruptions result from molten rock rising to the seafloor as the plates divide. A ridge's shape is influenced by how quickly it spreads; slower spreading rates produce steep, erratic topography, while faster spreading rates result in much wider profiles and kinder slopes.

In geology and oceanography, a transform fault is a type of fault when two tectonic plates slide past one another. A transform fault may develop in the area of a fracture zone that connects spreading centres to deep-sea trenches in subduction zones or that lies between various offset spreading centres.

In the 1960s, Morgan postulated that spreading centres and transform faults separate opposing plates along an oceanic ridge crest that is offset by fracture zones.

The direction of motion on the transform faults was predicted by Morgan's hypothesis to be opposite to the offsets of the ridge crests, which was a rather dramatic assertion.

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