What is the average size of a composite volcano?
GeologyStratovolcanoes (Composite Volcanoes) These volcano land formations are typically 10-20 miles across and up to 10,000 or more feet tall. This type of volcano has steeper slopes of 6-10 degrees on its flanks and as much as a 30 degree slope near the top.
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What is the average size for a volcano?
Typical shield volcanoes found in California and Oregon measure 3 to 4 mi (5 to 6 km) in diameter and 1,500 to 2,000 ft (500 to 600 m) in height, while shield volcanoes in the central Mexican Michoacán–Guanajuato volcanic field average 340 m (1,100 ft) in height and 4,100 m (13,500 ft) in width, with an average slope …
How tall are composite 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.
Is a composite volcano large?
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.
Is a composite volcano small?
Composite cones are tall, cone shaped volcanoes that produce explosive eruptions. Shield volcanoes form very large, gently sloped volcanoes with a wide base. Cinder cones are the smallest volcanic landform. They are formed from accumulation of many small fragments of ejected material.
Are composite volcanoes explosive or effusive?
Composite volcanoes are tall, steep cones that produce explosive eruptions. Shield volcanoes form very large, gently sloped mounds from effusive eruptions.
Why are volcanoes different sizes?
Volcanoes come in different sizes and shapes. The overall size of a volcano is determined by the total volume of lava that has erupted. The shape of a volcano is largely determined by the type of lava that has erupted, and importantly, its viscosity. Viscosity is a fluid’s resistance to flow.
What type of lava is in a composite volcano?
Composite volcano magma is felsic, which means it contains silicate-rich minerals rhyolite, andesite, and dacite. Low-viscosity lava from a shield volcano, such as might be found in Hawaii, flows from fissures and spreads.
How big is a volcano eruption?
The volume of material released in any one eruption can vary enormously from a few cubic metres of magma to as much as 3,000 cubic km (720 cubic miles). A series of small eruptions usually builds up mounds close to the vent, whereas large-volume eruptions tend to disperse their products over a greater distance.
Do composite volcanoes have high or low viscosity?
Composite volcanoes have steep slopes consisting of layers of lava and ash, and often have very explosive eruptions. This type of volcano is found along convergent boundaries and has a very high viscosity. The gas content is high, but the temperature is low.
Was Mt Everest a volcano?
Mount Everest is a volcano located in the Himalayas. It is the highest mountain on Earth, and is also the world’s highest mountain peak. Mount Everest is classified as a stratovolcano, meaning that it is composed of alternating layers of ash and lava.
What type of volcano is the largest?
Mauna Kea and Mauna Loa are shield volcanoes. They are the world’s largest active volcanoes, rising over 9 km above the sea floor around the island of Hawai’i.
What is the weakest volcano?
Within these wide-defining eruptive types are several subtypes. The weakest are Hawaiian and submarine, then Strombolian, followed by Vulcanian and Surtseyan. The stronger eruptive types are Pelean eruptions, followed by Plinian eruptions; the strongest eruptions are called Ultra-Plinian.
What is the scariest volcano?
The World’s Most Dangerous Volcanoes
- Mount Pinatubo, The Philippines. …
- Mount Agung, Bali. …
- Mount Fuji, Japan. …
- Popocatépetl, Mexico. …
- Mount Vesuvius, Italy. …
- Timinfaya, Lanzarote. …
- Reykjanes, Iceland. …
- Mount Etna, Sicily. Europe’s highest volcano, Mount Etna is a great place to potentially witness some volcanic activity.
What volcano killed the most?
Deadliest Eruption
Deaths | Volcano | When |
---|---|---|
92,000 | Tambora, Indonesia | 1815 |
36,417 | Krakatau, Indonesia | 1883 |
29,025 | Mt. Pelee, Martinique | 1902 |
25,000 | Ruiz, Colombia | 1985 |
How hot is lava?
When lava first breaks through Earth’s surface, it is an extremely hot liquid. On average, fresh lava can be between 1,300° F and 2,200° F (700° and 1,200° C)! Depending on its exact temperature, fresh lava usually glows either orange/red (cooler) or white (hotter).
Can lava melt a diamond?
To put it simply, a diamond cannot melt in lava, because the melting point of a diamond is around 4500 °C (at a pressure of 100 kilobars) and lava can only be as hot as about 1200 °C.
Is lava red or orange?
orange
The color of lava depends on its temperature. It starts out bright orange (1000-1150 C). As it cools the color changes to bright red (800-1000 C), then do dark red (650-800 C), and to brownish red (500-650 C). Solid lava is black (but can still be very hot).
Is lava hotter than the sun?
Lava is indeed very hot, reaching temperatures of 2,200° F or more. But even lava can’t hold a candle to the sun! At its surface (called the “photosphere”), the sun’s temperature is a whopping 10,000° F! That’s about five times hotter than the hottest lava on Earth.
How cold is the moon?
The average temperature on the Moon (at the equator and mid latitudes) varies from -298 degrees Fahrenheit (-183 degrees Celsius), at night, to 224 degrees Fahrenheit (106 degrees Celsius) during the day.
How cold is space?
Hot things move quickly, cold things very slowly. If atoms come to a complete stop, they are at absolute zero. Space is just above that, at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit).
What is the hottest organ?
Surprisingly, your liver is the organ that generates the majority of your body temperatue. This is due to the amount of metabolic activity taking place and is therefore the hottest part of the body (internally.)
What’s the hottest part of a woman’s body?
The warmest parts of the human body are the head, chest and armpits, according to the Journal Gazette.
Where is the live located?
The liver is located in the upper right-hand portion of the abdominal cavity, beneath the diaphragm, and on top of the stomach, right kidney, and intestines. Shaped like a cone, the liver is a dark reddish-brown organ that weighs about 3 pounds.
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