An explosive eruption style associated with the sticky magma of stratovolcanoes?

1 answer:

iogann1982 [59]3 years ago

5 0

Tall , conical volcano that is made of a layer of hardened lava, ash and tephra is referred as stratovolcanoes.

Explanation:

A stratovolcano requires more than thousands year time to form. Various type of magma type are erupted from this volcano they are rhyolite, basalt,dacite and andesite. When eruption occurs huge amount of gases are evolved. In case of stratovolcanoes periodic explosion takes place.

The lava that comes out is highly viscous and the lava cools very fast and hardens before going too far. Mt. St. Helens is one of the example of stratovolcano.

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What ate the four types of general landforms how do geographers define them and what are the characteristics of each one?

g100num [7]

Answer:

Mountains, hills, plateaus, and plains are the four major types of landforms. Minor landforms include buttes, canyons, valleys, and basins. Most geologists classify a mountain as a landform that rises at least 1,000 feet (300 meters) or more above its surrounding area. A hill is a landform that is higher than the surrounding land and has a visible summit; they're like mountains, only shorter. A plateau is a flat, elevated landform that rises sharply above the surrounding area on at least one side. A plain is a broad area of relatively flat land.