The Cape Verde Archipelago - the type-example of a hotspot in a stationary plate environment with respect to its melting source - exhibits ubiquitous evidence for quaternary uplift.
What causes the peaks and valleys of the world’s great mountains? For continental ranges like the Appalachians or the Northwest’s Cascades, the geological picture is clearer. Continents crash or volcanoes erupt, then glaciers erode away. Yet scientists are still puzzling out what makes the highs high and the lows low for the planet’s largest mountain chain, the 55,000-mile-long Mid-Ocean Ridge.