How do chemosynthetic ecosystems thrive around submarine hydrothermal vents associated with hotspots?

Oct 29, 2013 ... This discovery helps to explain how “hotspot volcanoes”—the kind that give birth to island chains like Hawaii and Tahiti—come to exist ... Jan 4, 2019 ... Based on observations mainly made on the Hawaiian volcanoes the compositional evolution of hotspot volcanoes is believed to reflect the ... May 6, 2022 ... Most hotspot volcanoes are basaltic (e.g., Hawaii, Tahiti). As a result, they are less explosive than subduction zone volcanoes, in which water ... Shield volcanoes are built almost entirely of low viscosity (very thin, liquidity) fluid lava flows. Flow after flow pours out in all directions from a central ... Auckland's volcanoes are powered by a 'hot spot' deep beneath the surface. The hot spot is a zone of magma fed by a plume of hot rock rising up out of the ... ... volcanism that is trailed by an age-progressive hotspot volcano chain. However, a range of observations call for significant extensions to classical theory ... Hotspots at the seafloor create subsea volcanoes; building upward, they ultimately become volcanic islands. Hotspots are stationary but the crusts above them ... Here we present new age and geochemical data from volcanic samples from Richardson Seamount, the Agulhas Ridge along the Agulhas-Falkland Fracture Zone (AFFZ) ... A hotspot is an area of the Earth's mantle from which hot plumes rise upward, forming volcanoes on the overlying crust. May 25, 2017 ... Abstract. Mantle plumes are buoyant upwellings of hot rock that transport heat from Earth's core to its surface, generating anomalous regions of ...