lower mantle (Meaning)
Wordnet
lower mantle (n)
the deeper part of the mantle
Synonyms & Antonyms of lower mantle
No Synonyms and anytonyms found
lower mantle Sentence Examples
- The lower mantle extends from a depth of 660 kilometers to 2,900 kilometers beneath Earth's surface.
- Composed primarily of iron and magnesium, the lower mantle is solid but deforms under high pressure and temperature.
- Convection currents in the lower mantle are believed to drive plate tectonics on Earth's surface.
- The lower mantle is separated from the upper mantle by a boundary known as the 660-kilometer discontinuity.
- Seismic waves from earthquakes can penetrate the lower mantle and provide valuable information about its composition and structure.
- The lower mantle is hotter and denser than the upper mantle, leading to its distinct physical properties.
- The temperature gradient within the lower mantle is responsible for the formation of plumes and other thermal anomalies.
- The viscosity of the lower mantle varies with depth, influencing the flow of material and the generation of seismic waves.
- Geochemical studies have revealed the presence of recycled crustal material within the lower mantle.
- The lower mantle plays a crucial role in understanding the Earth's interior structure, evolution, and geodynamic processes.
FAQs About the word lower mantle
the deeper part of the mantle
No synonyms found.
No antonyms found.
The lower mantle extends from a depth of 660 kilometers to 2,900 kilometers beneath Earth's surface.
Composed primarily of iron and magnesium, the lower mantle is solid but deforms under high pressure and temperature.
Convection currents in the lower mantle are believed to drive plate tectonics on Earth's surface.
The lower mantle is separated from the upper mantle by a boundary known as the 660-kilometer discontinuity.
