Upper mantle

Earth’s interior

The upper mantle extends to about 660 km depth. Its mostly solid silicate rock deforms slowly over geological time, allowing plates to move. Mineral transformations between about 410 and 660 km form the mantle transition zone.

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)

Upper mantle

The upper mantle extends to about 660 km depth. Its mostly solid silicate rock deforms slowly over geological time, allowing plates to move. Mineral transformations between about 410 and 660 km form the mantle transition zone.

Beneath the seafloor NASA · Earth