The basic answer is magma is underground and lava is above ground, but there is actually a lot more to it then that. Magma is under a lot more pressure which influences its composition and behavior. Magma moves underground in response to stress fi. 06/05/2013 · I know that Lava is hot molten rock above the Earth's surface that comes up through fissures or cracks in the crust and erupts in a volcano. I also know that Magma is hot molten rock beneath the Earth's surface. I don't see why they have 2 different names. They seem the same to me except that one is above Earth's surface and one is below.
Magma from Ancient Greek μάγμα mágma meaning "thick unguent" is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles. 15/01/2011 · Other than the obviousness of magma being in the earth and lava being on the surface what are the differences? 03/12/2012 · Most silicic lava flows are extremely viscous, and typically fragment as they extrude, producing blocky autobreccias. The high viscosity and strength are the result of their chemistry, which is high in silica, aluminium, potassium, sodium, and calcium, forming a polymerized liquid rich in feldspar and quartz, and thus has a higher viscosity than other magma types. The increased water content lowers the melting point of the mantle rock in this wedge, causing it to melt into magma. This sort of magma production is called subduction zone volcanism. If the plates collide and neither plate can subduct under the other, the crust material will just "crumple," pushing up mountains.
Pahoehoe or pillow lava - same thing. These flows are slow that you can barely see their movement if you can see it at all. No. Magma that flows onto the surface is called lava. The difference between magma and lava is that _____. A. magma cools more rapidly than lava B. magma is found at the surface, whereas lava is found below the surface C. magma is found beneath the surface, whereas lava is found at the surface D. There is no difference; the two terms mean the same thing. The difference between magma and lava is that lava has vented some of the gasses that were in the magma. It includes instrumental monitoring to detect the movement of magma. Waves and currents are essentially the same thing. False. Start studying science, Chapter 5. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Ch 4. Igneous Rocks. STUDY. PLAY. when magma/lava cools it becomes. igneous rock. magma= below surface. lava= above surface. 3 components to magma. felsic igneous rocks, made of the same thing but dont look like the same thing. tuff. volcanic rock fragments cemented together AFTER cooling. 16/09/2015 · 50 videos Play all Mix - Disney Music - Lava Official Lyric Video from "Lava" YouTube Jemaine Clement - Shiny from Moana Official Video - Duration: 3:25. DisneyMusicVEVO 291,647,024 views. Magma forms in the lower crust and upper mantle no deeper than 200km. It lives in a state where the surrounding environment is more structured and stable, whereas it is a free flowing, fluid like substance. This is mainly due to the addition of he.
Magma rises through cracks or weaknesses in the Earth's crust. When this pressure is released, eg as a result of plate movement, magma explodes to the surface causing a volcanic eruption. The lava from the eruption cools to form new crust. Over time, after several eruptions, the rock builds up. No, this is not a good analogy. Blood has a purpose for existence. It carries oxygen and nutrients from one part of a body to another. Magma has no purpose, it is just melted rock that exists in particularly hot places in Earth’s mantle. The drivi. Pure and simple: 1. A tectonic quake is generated where tectonic plates meet, either in a converging plate boundary, a transform boundary, and a divergent boundary. The abundance and size of the quakes are all different depending on where they are. This happens because water physics treat the lava block as empty, and try to flow to it. Once the water turns the lava into obsidian, the water physics update to flow in all directions. The same thing happens with lava flowing over water. Although lava is a liquid, it is not possible to drown in lava.
We Need a New Definition for “Magma” Confusion over the meaning of "magma" can generate popular misperceptions, including a nonexistent molten sea underneath Yellowstone National Park. They are made in the same way as mountains, except that their topmost parts are open and allow the liquid to come out. Why the Substance is Hot. The deeper parts of the Earth are made up of hot molten rock. These are called magma. As the facts about lava were established, it was agreed upon that magma be called lava when the volcano spews it out.
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