What is the "plume paradox" related to helium isotope ratios in some hotspots?

A hotspot is a small area within the mantle which is of a higher temperature than the area surrounding it, and is usually associated with volcanic activity. Sep 13, 2022 ... yes. given the right geologic setting, and right ammount of time, mantle plumes can form anywhere. Plus there already ARE monogenetic, plume fed ... Feb 11, 2020 ... A hotspot is a large plume of hot mantle material rising from deep within the Earth. A line of volcanoes develops as a plate moves over a hotspot. Although most volcanic rocks are generated at plate boundaries, there are a few exceptionally active sites of volcanism within the plate interiors. These ... But a significant number of volcanoes (think Hawaii) are mid-plate “hotspot” volcanoes. ... hotspots like the Yellowstone super volcano? Not really. It ... Jul 2, 2013 ... But volcanoes and seismic hazards exist, too, in the interior of tectonic plates. The Hawaiian Islands, for example, sit well within the ... May 10, 1995 ... Here we show that recent estimates for the volume of hotspot volcanism and the size of the swell suggest a shared origin: swell relief is ... Apr 3, 2024 ... Volcanic hotspots are permanent and localized regions of intense volcanic activity on Earth's surface, typically found in the interior of ... Apr 30, 2024 ... A hot spot is a region deep within Earth's mantle from which heat rises by convection. Grades 5 - 12+ Subjects Earth Science, Geology, Geography, Physical ... Axial Seamount is the most active submarine volcano in the NE Pacific. It is a basaltic hotspot volcano superimposed on the Juan de Fuca Ridge spreading ...