GEOLOGY

EARTH SCIENCE

VOLCANOES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A cinder cone volcano ____
A
is built from layers of lava and volcanic ash.
B
consists primarily of cinders and volcanic rock.
C
composed almost entirely of thin lava.
D
None of the above
Explanation: 

Detailed explanation-1: -Cinder cones are the simplest type of volcano. They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone.

Detailed explanation-2: -Cinder cones are made up of layers of pebble-sized or larger cinders and layers of ash. Larger volcanic bombs and blocks may also be present.

Detailed explanation-3: -Cinder cones get their name from the material that forms them, cinders. Cinder cones are the simplest volcanic formation. They form from explosions of red, hot magma cinders and ash. These cinders and ash settle around the main vent and build a steep sided cone.

Detailed explanation-4: -They are the world’s most common volcanic landform. As the name “cinder cone” suggests, they are cone-shaped hills made up of ejected igneous rocks known as “cinders". These small volcanoes usually have a circular footprint, and their flanks usually slope at an angle of about 30 to 40 degrees.

Detailed explanation-5: -Cinder cones have a single crater fed by a single vent. These summit calderas are large depressions formed during the eruption at the top of the volcano. Cinder cone volcanoes have rocky steep slopes covered in scoria cinders. Cinder cone volcano eruptions tend to be explosive.

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