Sentences with phrase «old subducting»
The giant Sumatran earthquake raised questions about the sea - floor - age hypothesis, because the old subducting crust there should have ruled out a shock of that size, says Okal.
https://www.scientificamerican.com/ Not exact matches
The northwest Pacific crust that is subducting in this area is some of the oldest, coldest oceanic crust subducting on Earth.
As a result, mantle plumes entrain a variable combination of relatively young oceanic crust directly from the subducting slab, older oceanic crust that has been stirred with ancient more primitive material and background, depleted mantle.