But these samples, called mantle xenoliths, have their limits, because they are often chewed up and weathered from their trip to the surface. There are also ophiolites, sheets of oceanic crust ...

But these samples, called mantle xenoliths, have their limits, because they are often chewed up and weathered from their trip to the surface. There are also ophiolites, sheets of oceanic crust ...

in early Cretaceous lamprophyres and mantle xenoliths from the North China Craton. These findings indicate that the cratonic lithospheric mantle contains a large amount of carbon from recycled ...

So, in kimberlite deposits, we find all sorts of chunks of mantle rocks and minerals, along with chunks of the crust that the kimberlite blasted through (we call these chunks “xenoliths ...

We can find these chunks of the mantle — or mantle xenoliths (xeno = foreign, lith = rock) — in cooled lava today in western Victoria. At first, these rocks look like any other piece of black ...

Nevertheless, the mantle can reach us thanks to volcanic eruptions, which bring with them small fragments, or 'xenoliths', from the mantle under the continents to the surface. Those rare xenoliths ...

"The study looks at rocks—so-called xenoliths—entrained in kimberlites from Baffin Island. Cratons comprise both a crust and a rigid upper mantle part—the so-called lithosphere—and the ...