KnowraMantle transition zoneLinked fromLinked fromThe 7 pages that link to Mantle transition zone, each with the reason it gives.All 7Broader topic 3Related 3Compared with 1Mantle plumeRelated: A possible ponding level where plumes slow or stall during their rise.Yellowstone hotspotBroader topic: Seismic studies test whether Yellowstone’s upwelling extends through this zone.Deep-focus earthquakeRelated: Many deep earthquakes occur near this zone, where pressure-driven transformations are possible.Whole-mantle convectionRelated: Its phase changes can resist or assist flow between upper and lower mantle.Upper mantleBroader topic: It forms the deepest part of the upper mantle under the stated depth convention.Rheology of the mantleBroader topic: Phase transitions change mineral grain structure and hence how the deep mantle deforms.Lower mantleCompared with: Its lower boundary at about 660 kilometers marks the start of the lower mantle.