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What is source material for andesitic magma?
Andesitic magma is typically sourced from the partial melting of subducted oceanic crust and overlying mantle at convergent plate boundaries. This process results in the formation of a magma with intermediate silica content, giving rise to andesitic volcanic rocks.
What list places the magma What list places the magma types in order of decreasing?
basaltic,andesitic,rhyolitic
What is the difference of andesitic and andesite?
Andesite is a type of extrusive igneous rock with moderate levels of silica. Andesitic is an adjective used to describe volcanic material with the composition of andesite. For example, andesitic lava will cool to form andesite.
Will pumice float or sink in water?
In general, pumice will float. There is enough trapped air in pumice that it is buoyant.
What rock floats on water?
Floating rocks: pumice. Non-floating rocks: all but pumice. Pumice can float on water because its density is so low, due to trapped bubbles of air which formed during its solidification from lava.
Is pumice a foidolite rock?
Not necessarily. It is often andesitic or rhyolitic.
What is a pumice source?
Pumice is produced in the lava from certain volcanic eruptions. It forms from gas-rich andesitic or rhyolitic lava and has so many gas bubbles that some pumice can float on water.
What materials are ejected from andesitic composite volcanoes?
Andesitic composite volcanoes typically eject pyroclastic material, which includes ash, pumice, and volcanic bombs. These materials are a result of explosive eruptions caused by the high viscosity of andesitic magma, leading to the build-up of pressure within the volcano.
Are pyroclasts formed by basaltic magma or andesitic magma?
Pyroclasts can be formed by both basaltic and andesitic magma. Basaltic magma typically forms pyroclastic materials like scoria and ash, while andesitic magma can produce a variety of pyroclasts including volcanic bombs and pumice. The type of pyroclasts produced depends on factors such as the composition of the magma and the eruption style.
Is andesitic thick?
yes
Is pumice white or is pumice gray?
Pumice can be white, gray, or even pink.
How did pumice get here?
how did pumice get here
Is pumice organic?
No. Pumice is inorganic.
What types of volcanoes are created when andesitic magma erupts?
Andesitic magma will result in the formation of a stratovolcano, also called a composite volcano.
Is basaltic or andesitic magma hotter?
Basaltic magma is hotter than andesitic magma. Basaltic magma typically has temperatures ranging from 1000°C to 1200°C, while andesitic magma has temperatures around 800°C to 1000°C.
Does pumice have small grains?
No. Pumice does not have grains.
What metamorphic rock can float?
Pumice.
