What is a volcanic dome?Group of answer choicesan unstable volcanic landform that can form when dry, intermediate-felsic lava eruptsa steep, cone-shaped volcano that rises above the surrounding landscapea small, shorter-lived volcano that readily weathers and erodesa broad, mafic volcano with low-angle flanks
Question
What is a volcanic dome?Group of answer choicesan unstable volcanic landform that can form when dry, intermediate-felsic lava eruptsa steep, cone-shaped volcano that rises above the surrounding landscapea small, shorter-lived volcano that readily weathers and erodesa broad, mafic volcano with low-angle flanks
Solution
A volcanic dome is an unstable volcanic landform that can form when dry, intermediate-felsic lava erupts. These domes are typically found in the craters or on the flanks of large composite volcanoes. They are characterized by their dome or mound-like shape, which is due to the high viscosity of the erupted lava that prevents it from flowing very far. This causes the lava to pile up and solidify near the vent, forming a dome. The instability of these domes can often lead to explosive eruptions as pressure builds up beneath the hardened exterior of the dome.
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