GEOLOGY

EARTH SCIENCE

VOLCANOES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Highly explosive volcanoes tend to have what type of magma?

A	magma with high silica, high viscosity, and higher gas content
B	magma with low silica, low viscosity, and lower gas content
C	magma with low silica, high viscosity, and lower gas content
D	magma with no silica, high viscosity, and no gas content

Explanation:

Detailed explanation-1: -Explosive eruptions are favored by high gas content and high viscosity (andesitic to rhyolitic magmas).

Detailed explanation-2: -Explosive eruptions are favored by high gas content & high viscosity magmas (andesitic to rhyolitic magmas).

Detailed explanation-3: -Rhyolitic and andesitic are two types of magmas that are highly explosive. Each one produces volcanoes that have huge explosions. Also, these types of magmas will produces volcanoes that are taller in size and made of multiple layers of ash and lava, such as a cinder cone and stratovolcano.

Detailed explanation-4: -Rhyolitic/Andesitic Lava Magma that has a higher viscosity and silica content produces rocks that are called rhyolite and andesite.

There is 1 question to complete.