A "province" of these features near Christmas Island may be made up of recycled continental crust from Gondwanaland.
A "province" of these features near Christmas Island may be made up of recycled continental crust from Gondwanaland. "Diabolical" and "Morgue" examples of these make up the "Graveyard" group on the Chatham rise near New Zealand. A previously-undiscovered one near the Cocos Islands was responsible for damage to the cargo (*) ship Muirfield. Flat-topped ones of these created by erosion are named after a 19th-century Princeton geology professor, A. H. Guyot. A chain of these called the ►  "Emperor" ones extends from the Aleutian trench to northwest of Hawaii, the result of subsiding former members of the Hawaiian chain. For 10 points, name these underwater landforms, mountains that do not reach the ocean's surface and thus are not currently islands.
A "province" of these features near Christmas Island may be made up of recycled continental crust from Gondwanaland.
{seamount}s [prompt on “underwater volcano”; antiprompt on “tablemount” or “guyot”]