Definition, Meaning & Synonyms
low-velocity-zone
noun
/loʊ vəˈlɛsɪti zoʊn/
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Definition
A region within the Earth’s mantle where seismic waves travel more slowly than in surrounding areas.
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Examples
- The low-velocity-zone beneath the oceanic crust suggests the presence of partially molten rock.
- Scientists study the low-velocity-zone to understand tectonic movements better.
- Data from the low-velocity-zone can help predict volcanic activity.
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Meaning
The term refers to specific layers in the Earth’s interior that exhibit reduced seismic wave velocities, often indicating alterations in mineral composition or temperature.
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Synonyms
- seismic soft zone
- low-wave-speed region
- decelerated zone