GEOLOGY

Detailed explanation-1: -Stratovolcano. Stratovolcanoes have relatively steep sides and are more cone-shaped than shield volcanoes . They are formed from viscous, sticky lava that does not flow easily.

Detailed explanation-2: -The most majestic of the volcanoes are composite volcanoes, also known as strato-volcanoes. Composite volcanoes are tall, symetrically shaped, with steep sides, sometimes rising 10, 000 feet high. They are built of alternating layers of lava flows, volcanic ash, and cinders.

Detailed explanation-3: -Composite or Stratovolcanoes (Fig. 5.14) erupt both lava and pyroclastic deposits. The slopes of stratovolcanoes are therefore composed of lava flows alternating with layers of pyroclastic deposits. Stratovolcanoes have steeper slopes than shield volcanoes and are common along convergent plate boundaries (Fig.

Detailed explanation-4: -The alternating layers (strata) of ash and lava are not continuous, blanketlike deposits; rather, they are overlapping lobes or tongues of ash and lava. For this reason many geologists refer to stratovolcanoes as composite volcanoes.

Detailed explanation-5: -Some of the Earth’s grandest mountains are composite volcanoes–sometimes called stratovolcanoes. They are typically steep-sided, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks, and bombs and may rise as much as 8, 000 feet above their bases.