What are some characteristics of a caldera volcano?

Answer 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. Most cinder cones have a bowl-shaped crater at the summit and rarely rise more than a thousand feet or so above their surroundings. Cinder cones are numerous in western North America as well as throughout other volcanic terrains of the world.

Composite volcanes-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. Some of the most conspicuous and beautiful mountains in the world are composite volcanoes, including Mount Fuji in Japan, Mount Cotopaxi in Ecuador, Mount Shasta in California, Mount Hood in Oregon, and Mount St. Helens and Mount Rainier in Washington.

Most composite volcanoes have a crater at the summit which contains a central vent or a clustered group of vents. Lavas either flow through breaks in the crater wall or issue from fissures on the flanks of the cone. Lava, solidified within the fissures, forms dikes that act as ribs which greatly strengthen the cone.

The essential feature of a composite volcano is a conduit system through which magma from a reservoir deep in the Earth's crust rises to the surface. The volcano is built up by the accumulation of material erupted through the conduit and increases in size as lava, cinders, ash, etc., are added to its slopes.

Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building a broad, gently sloping cone of flat, domical shape, with a profile much like that of a warrior's shield. They are built up slowly by the accretion of thousands of highly fluid lava flows called basalt lava that spread widely over great distances, and then cool as thin, gently dipping sheets. Lavas also commonly erupt from vents along fractures (rift zones) that develop on the flanks of the cone. Some of the largest volcanoes in the world are shield volcanoes. In northern California and Oregon, many shield volcanoes have diameters of 3 or 4 miles and heights of 1,500 to 2,000 feet. The Hawaiian Islands are composed of linear chains of these volcanoes including Kilauea and Mauna Loa on the island of Hawaii-- two of the world's most active volcanoes. The floor of the ocean is more than 15,000 feet deep at the bases of the islands. As Mauna Loa, the largest of the shield volcanoes (and also the world's largest active volcano), projects 13,677 feet above sea level, its top is over 28,000 feet above the deep ocean floor.t is

Answer 2

There is about 5 to 9 main parts of a volcano that you really have to know of. 1. the Magma chamber 2. Secondary Vent. 3. Secondary Cone. 4. Volcanic Bombs. 5. Ash Cloud. 6. Pyroclastic Flow. 7. Crater. 8. Main Vent 9.Lava Flow.

Answer 3

Characteristics of a volcano means what would a volcano look like after it erupts, so a volcano would have molten lava pouring out of the sides. this is the characteristic of a volcano. hope this helps :D

Answer 4

it is big and round *large, steep walled, basin shaped depressions *they often have a lake inside the crater *might have new volcanic cones growing inside

Answer 5

A caldera is a crater formed after the eruption of a volcano. Some characteristics would be depressed ground and a depression that is located over a hot spot where a volcano used to be.

Answer 6

An active volcano is a volcano that had at least one eruption during the last 10,000 years. The active volcano can be erupting or dormant.

Answer 7

they are very tall and steep, they are very explosive and they have a lot of silica

Answer 8

they tend to be very large and have a massive scale of ash