INDIAN GEOGRAPHY

THE EARTH

VOLCANOES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cinder cones are built from lava fragments called:
A
Mantle plumes
B
Ash
C
Cinders
D
None of these
Explanation: 

Detailed explanation-1: -Cinder cones are more technically known as scoria cones. Scoria are irregularly-shaped, highly vesicular (bubble-shaped cavities) fragments of lava that are erupted into the air and are typically solid when they land.

Detailed explanation-2: -Cinder cones are also known as ash cones. Cinder cones are the type of volcano that is formed by pyroclastic fragments like volcanic ashes, solidified lava pieces, volcanic clinkers, pumice and hot gases.

Detailed explanation-3: -Cinder cones are typically are made of piles of lava, not ash. During the eruption, blobs ("cinders") of lava are blown into the air and break into small fragments that fall around the opening of the volcano.

Detailed explanation-4: -A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent.

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