igneous rock encyclopedia of earth

Igneous Rocks | Encyclopedia.com

Igneous rocks. The first rocks on Earth were igneous rocks. Igneous rocks are formed by the cooling and hardening of molten material called magma.The word igneous comes from the Latin word ignis, meaning fire.There are two types of igneous rocks: intrusive and extrusive.

Igneous rock - Encyclopedia Britannica | Britannica.com

Igneous rock, any of various crystalline or glassy rocks formed by the cooling and solidification of molten earth material. Igneous rocks constitute one of the three principal classes of rocks, the others being metamorphic and sedimentary. Igneous rocks are formed from the solidification of magma, which is a hot (600 to 1,300 °C, or 1,100 to 2,400 °F) molten or partially molten rock material.

Images of igneous rock encyclopedia of earth

See more images of igneous rock encyclopedia of earth

Igneous rock - Intrusive igneous rocks | Britannica.com

Igneous rocks, which are formed by the cooling of molten masses of mineral as they approach the Earth’s surface, include granite, diorite, basalt, and obsidian. These are some of …

Rock (geology) - Wikipedia

Igneous rocks are divided into two main categories: Plutonic or intrusive rocks result when magma cools and crystallizes slowly within the Earth's crust. A common example of this type is granite. Volcanic or extrusive rocks result from magma reaching the surface either as lava or fragmental ejecta, forming minerals such as pumice or basalt.

Classification· Human use

Igneous rock - Wikipedia

Intrusive igneous rocks are formed from magma that cools and solidifies within the crust of a planet, surrounded by pre-existing rock (called country rock); the magma cools slowly and, as a result, these rocks are coarse-grained.

Geological significance· Geological setting· Classification· Mineralogical ...

The Encyclopedia of Igneous and Metamorphic Petrology ...

Featuring over 250 contributions from more than 100 earth scientists from 18 countries, The Encyclopedia of Igneous and Metamorphic Petrology deals with the nature and genesis of igneous rocks that have crystallized from molten magma, and of metamorphic rocks that are the products of re-crystallization associated with increases in temperature and pressure, mainly at considerable depths in the Earth's …

Igneous Rocks: Everything You Need to Know

In many igneous rocks, large mineral crystals "float" in a fine-grained groundmass. The large grains are called phenocrysts, and a rock with phenocrysts is called a porphyry; that is, it has a porphyritic texture.

Related searches for igneous rock encyclopedia of earth

pictures of igneous rockigneous rocks listtypes of igneous rocksigneous rock formationwhat are examples of igneous rockigneous rock crystal10 facts about igneous rockstypes of intrusive igneous rock

crusher case

gold processing companies in utah history of grinding machine with image used triple roll mill to build a crusher plant about gold crusher granite crusher europe vertical roller mill in france stone crusher machine horizontal impact crusher t h diagrams mobile sand dryers in united kingdom manufacturer of silica sand processing alog of horizontal roller screen machine crusher machine for sale high efficiency stone crusher plant whole set fluorescent lamp crusher competitive price and high quality jaw crusher bkaka stone crusher 30 jj crushing and grinding machine supplier india hard rock minning rock crushers for sale castella quarrie in yarra glen chinese filament poyester dyeing amp finishing mills gold hand held metal detectors philippines

Copyright ©2018 by China Liming Heavy Industry Science and Technology Co. LTD All rights reserved