Why are volcanic centers not always visible on lava plateaus?

Volcanic centers are often not visible on lava plateaus because these landforms are typically created by extensive, voluminous eruptions of fluid lava—often referred to as flood basalts or traps—that originate from long fissure vents rather than a single, central volcanic edifice.12

Because the lava and volcanic ash are carried long distances from their sources, the resulting topography is not dominated by traditional volcanoes or volcanic centers. Instead, these eruptions bury the preexisting terrain under thick layers of volcanic rock, creating a remarkably flat surface that may later be dissected by erosion into sharply incised canyons and valleys. While feeder dikes exist underground to supply the lava, the surface expression of the eruption is characterized by the vast, flat expanse of the plateau itself rather than a prominent volcanic peak.2314