What is magma? How is it different from lava?
Answers
Answer:
Magma is extremely hot liquid and semi-liquid rock located under Earth's surface. ... This magma can push through holes or cracks in the crust, causing a volcanic eruption. When magma flows or erupts onto Earth's surface, it is called lava. Like solid rock, magma is a mixture of minerals.
Explanation:
Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth's surface.
What is the difference between magma and lava?
Magma is hot, molten rock under the earth's surface; lava is when magma reaches the earth's surface (it is then called lava). ... A mountain built of lava and ash from within the earth.
Answer:
Yellowstone is underlain by two magma bodies . The shallower one is composed of rhyolite (a high-silica rock type) and stretches from 5 km to about 17 km (3 to 10 mi) beneath the surface and is about 90 km (55 mi) long and about 40 km (25 mi) wide. The chamber is mostly solid, with only about 5-15% melt. The deeper reservoir is composed of basalt...
Lava spatters into the air
How hot is a Hawaiian volcano?
Very hot!! Here are some temperatures recorded at different times and locations: The eruption temperature of Kīlauea lava is about 1,170 degrees Celsius (2,140 degrees Fahrenheit). The temperature of the lava in the tubes is about 1,250 degrees Celsius (2,200 degrees Fahrenheit). The tube system of episode 53 (Pu'u O'o eruption) carried lava for...
A repeating loop showing a hammer scooping lava from a flow and dropping it into a bucket.
Lava sampling: Why do we do it?
Hot lava samples provide important information about what's going on in a volcano's magma chambers. We know from laboratory experiments that the more magnesium there is in magma, the hotter it is. Chemical analysis, therefore, provides the means not only to determine the crystallization history of lava but also to establish the temperature at...
Explanation:
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