Very fluid lavas have low viscosity. Lavas decrease in viscosity with lessening amounts of silicon. Mafic lavas are lower in silicon and therefore more fluid in nature.
Silica content of lava, as well as the temperature of the lava.
Hot spots often have more fluid lava compared to volcanic arcs because the mantle plume beneath a hot spot is hotter, resulting in lower viscosity lava. This fluid lava allows it to flow more easily and create shield volcanoes with gentle slopes.
No, basaltic lava is typically more fluid than andesitic lava due to its lower silica content. This results in basaltic lava flowing more easily and spreading over larger areas compared to andesitic lava.
Lava plateau
Shield volcanoes form extensive fluid lava flow that erupts numerous times.
it has aa lava, so it is not fluid like, but still basaltic.
Silica content of lava, as well as the temperature of the lava.
Lava plateaus form when fluid basaltic lava flows out of fissures.
lava
lava
Hot spots often have more fluid lava compared to volcanic arcs because the mantle plume beneath a hot spot is hotter, resulting in lower viscosity lava. This fluid lava allows it to flow more easily and create shield volcanoes with gentle slopes.
No, basaltic lava is typically more fluid than andesitic lava due to its lower silica content. This results in basaltic lava flowing more easily and spreading over larger areas compared to andesitic lava.
Lava plateau
Shield volcanoes form extensive fluid lava flow that erupts numerous times.
Basaltic lava (low in silica).
Pahoehoe
Pahoehoe