EARTH SCIENCE
TECTONICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Rift valleys form where a continental plate moves under an oceanic plate.
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Rift valleys form where a plate slides horizontally past another plate.
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Rift valleys form where two plates move away form each other.
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Rift valleys form where an oceanic plate moves under another oceanic plate.
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Detailed explanation-1: -The valley walls slowly move at a rate of only a few millimeters a year. Which of these best describes the type of tectonic activity that forms rift valleys? Rift valleys form where a continental plate moves under an oceanic plate.
Detailed explanation-2: -A rift valley is a lowland region that forms where Earth’s tectonic plates move apart, or rift. Rift valleys are found both on land and at the bottom of the ocean, where they are created by the process of seafloor spreading.
Detailed explanation-3: -When tectonic plates interact with one another, they create plate boundaries. In particular, rift valleys are formed when continental plates move away from each other; moreover, the two continental plates diverge.
Detailed explanation-4: -A rift valley is formed due to the subsidence of the floor of a river valley. On a divergent plate boundary, it is like a crustal expansion or spreading apart of the surface forms a rift valley, which is then further deepened by erosion pressures.
Detailed explanation-5: -rift valley, any elongated trough formed by the subsidence of a segment of the Earth’s crust between dip-slip, or normal, faults. Such a fault is a fracture in the terrestrial surface in which the rock material on the upper side of the fault plane has been displaced downward relative to the rock below the fault.