0
Igneous Rock
Igneous rock is formed from cooled magma or lava. The magma turns solid as it cools, and eventually becomes rock. It is sometimes crystallized.
1,149 Questions
Is lava a sedimentary rock or igneous?
The common usage of "lava rock" in the USA refers to a black rock with a number of visible bubbles or air pockets that is formed from cooled lava on the surface. Although lava rock is an igneous rock, it is not the same as the definition for the word igneous, which can also include igneous rocks which have solidified from magma below the surface.
What is molten rock above the earth surface?
Molten rock above the Earth's surface is called lava. When molten rock, or magma, erupts onto the surface of the Earth through volcanic activity, it is known as lava. Lava can flow or explode from a volcano during an eruption.
How cana n igneous rock become magma?
An igneous rock can become magma through the process of melting. When the rock is subjected to high temperatures, typically due to tectonic activity or subduction, the minerals within the rock can melt, transforming it back into molten rock, or magma. This process can occur in various geological settings, such as at mid-ocean ridges or within the Earth’s mantle. Once formed, this magma can eventually rise to the surface, where it may solidify and create new igneous rock.
What are igneous rock classified based upon?
Igneous rocks can be classified by their method of formation and by their mineralogy.
Is Ayers rock a sedimentary igneous or metamorphic?
No. The Ediacara fauna / fossils are considered pre Cambrian. But if you really want to know about old rocks, have a crack at zircons.
What is the texture of Intrusive igneous rocks?
Intrusive igneous rocks have a coarse-grained texture because they cool slowly beneath the Earth's surface, allowing larger mineral crystals to form. These rocks often have interlocking crystals that are visible to the naked eye due to their slow cooling process.
Does igneous rock form from magma?
Magma (molten rock) rises from feeders or volcanic necks beneath the surface of the crust and flows from volcanic openings onto the surface. When magma reaches the surface, it is called lava.
When lava reaches the surface, it immediately begins to cool. During this cooling phase, the liquid lava solidifies much as liquid water would freeze if cooled sufficiently. The solidification occurs because of the crystallization of minerals from chemical components (iron, magnesium, silicon, oxygen) in the lava. The lava will transition from a liquid to either a form of natural glass, or to a rock, depending on the speed at which it cools. Obsidian, a natural glass, and basalt, an extrusive igneous rock, are both formed from cooling lava.
Geologists classify rocks by where they are formed; above ground or under ground
From what material does a extrusive rock form?
"Igneous" refers to rocks of volcanic origin. "Extrusion" refers to the process of a material being forced through a cavity of another material. (Think "Play-Doh Fun Factory." :) ) So, extruded igneous rocks are formed when liquid magma (volcanic rock) is forced through an opening (like a volcanic vent) and then cools and hardens into volcanic rock.
Obsidian is an extrusive rock that cooled very rapidly without forming crystals. As a result, obsidian has a smooth, shiny texture of a thick piece of glass.
What happens when you put granite rock into a cup of vinegar then freeze it what will happen?
It goes into the cup.
== == In computer programming, the word pipe has several meanings.
To see code and a UML diagram for a programmable (C# .Net) pipe, check out CodeGuru's "Inter-Process Communication in .NET Using Named Pipes, Part 1" ( http://www.codeguru.com/csharp/.net/net_general/patterns/article.php/c7259 ) A pipe is a section of shared memory that enables communication between threads in different processes, otherwise called Inter-Process Communication (IPC). IPC occurs between any thread in any process and possibly even over network and is generally socket based. Both Unix shells and DOS implement the pipe symbol in relation to this kind of function.
The pipe symbol is most commonly recognized as signifying a choice in computer programming (ie: RegEx, C-style languages) but is also significant in other fields (mathematics, as absolute value and divisibility, phonetics, etc..)
What role does magma play in the rock cycle?
Volcanoes effect rock formations a lot, since magma is molten rock, when it cools down and sets, it will turn back into rock, usually it will dry and turn black, but sometimes it can turn a dark grey. It will cover up other rocks, and make new rocks.
What can a igneous rock may change into?
Igneous rocks can change into metamorphic rocks from great heat and pressure as all other rocks can, melt into magma, the molten rock, and erode into sediment, which are rock fragments.
What kind of igneous rocks for on earths surface?
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
How do igneous rocks with glassy textures form and where?
They form from the extremely rapid cooling of lava or magma. The quick cooling does not allow time for the crystallization of minerals, resulting in the formation of a natural glass.
What rock cycle process is the opposite of crystallization of magma-?
The rock cycle is a model that describes the formation, breakdown, and reformation of a rock as a result of sedimentary, igneous, and metamorphic processes.
Well, there are a few formations ; sills, loccoliths, lopoliths, dykes, layered igneous intrusions and batholyths.
How does an igneous rock change to metamorphic?
Meta-igneous.
Metamorphism of igneous rocks can form a wide range of metamorphic rocks, depending on the mineralogy of the igneous protolith and the P-T conditions of the metamorphism.
What is the luster of igneous rock?
i think that igneous and metamorphic rocks uses luster because maybe they have it in them
