Lower mantle

Earth’s interior

The lower mantle extends from about 660 to 2,891 km depth. Increasing pressure stabilizes dense silicate minerals. Although solid, this immense rocky layer transports heat by slow convection.

html,body{position:static!important;height:auto!important;overflow:auto!important}body{color:#e8f1ff}body>:not(noscript){display:none!important}#static-seo-content img{display:block;max-width:100%;height:auto}#static-seo-content{max-width:800px;margin:40px auto;padding:24px;font:16px/1.7 Arial,sans-serif}#static-seo-content a{color:#a8d5ef}#static-seo-content nav{display:flex;flex-wrap:wrap;gap:12px} Earth’s interior: Crust · Upper mantle · Lower mantle · Outer core · Inner core · Innermost inner core (IMIC)

Earth’s interior: Crust · Upper mantle · Lower mantle · Outer core · Inner core · Innermost inner core (IMIC)

Lower mantle

The lower mantle extends from about 660 to 2,891 km depth. Increasing pressure stabilizes dense silicate minerals. Although solid, this immense rocky layer transports heat by slow convection.

Beneath the seafloor NASA · Earth