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Why do igneous rocks have either have fined or coarsed grained?
Wiki User
∙ 12y ago
The texture is mostly dependent on the amount of time the magma or lava had to crystallize into a solid rock. Volcanic rock is formed from quickly cooling lava (also called extrusive igneous rock), and will have a fine-grained texture. Plutonic rock (also called intrusive igneous rock) is formed from slow cooling magma, and will exhibit visible crystals.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoCoarse grained is when it is rough and jagged. When lava cools slowly, it forms diamonds and have more time to be coarse grained. When it cools quickly, it doesn't have time to form crystals so it is fine grained. Fine grained igneous rocks normally come from volcanoes.
Wiki User
∙ 15y agoThe granularity of igneous rock depends on of the temperature of the magma and how rapidly it solidified.
Wiki User
∙ 14y agoIt means it cooled quickly. The magma cools so quickly that crystallization cannot occur, creating a fine texture, or a glassy texture.
Wiki User
∙ 13y agoRapid cooling does not allow the atoms to assume normal crystalline lattice positions; resulting in glass like chunks with little to no crystalline lattice structure; such as, Obsidian.
Wiki User
∙ 12y agoIt depends on the rate of cooling
fast cooling=small crystals
slow cooling=large crystals
Wiki User
∙ 6y agoA rock solidified form a magma where the individual mineral crystals forming the rock are too small to see with the naked eye (eg basalt) would be have a fine grained texture.
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What minarals are in sedimentary rocks?
Fossils ranging in size from single celled plant and animal organisms to whale bones to dinosaur footprints are found in sedimentary rock.
Which process causes many sedimentary rocks to have visible layers?
There is no single process that causes the layering of sedimentary rocks and the layers can be very thin laminae up to very thick beds. Usually the reason why one sees layering is either because there are colour-changes or compositional changes in the sedimentary rocks. I give some examples below. Very thin layering can be formed by annually varying sediment input. In some lakes a summer- and a winter-layer form a couplet of layers that can be recognized by their differing colour. People use these so-called warves for absolute age dating of sediments. Layering can also be due to changes in the input of sediment from coarser grained material to finer grained material or the other way round. There are also packages of sediments of sub-marine sediment flows called turbidites, which show a sorting of the grain sizes in each package and that might be stacked to very thick successions. There are also bedding patterns that are believed to be driven by changes in the Earth's climate via changes in the orbital parameters of our planet, so-called Milankovich-cyclicity. In some marine sedimentary rocks it is possible to pick these cycles up as changes in colour or as changes in the fraction of carbonate present in the rock. Another type of layering exists in "chemical sediments", these being the products of evaporation of seawater. In restricted basins that periodically fall dry there is a well-defined succession of different minerals precipitating as the water evaporates and one can fined these cycles as stacked layers of carbonate, gypsum, anhydrite, halite (rock salt) and sometimes other highly soluble salts.
Which type of soil is fined-grained and holds water extremely well?
There are four main types of soil: sand, loam, silt, and clay. Each one has a different granule size, and different water retention rates. Granule size is important when referring to gardening because the larger the granule size, the more air can get to the roots. Air is a very important factor in eliminating root-rot.Sandy soil consists of comparatively large granules, causing it to not hold water very well. However, on the other side of the spectrum, clay soil has minuscule granules, which makes it very hard for it to absorb water in the first place, but once it does, it will hold it for an extremely long time. Loam is considered the "ideal" soil because it balances water retention with granule size providing the optimum medium for bacteria and plants to grow. But clay soil remains the soil type with the finest grain and highest water retention rate.
What is the general managers email?
A couple of Pit./NYR games, the coach bent over to speak to Crosby, before he could finish Crosby turned his head and snapped at the coach in a disrespectful manner. I'm an 84 yr. horseman and set world records with my horses by reading their movements. Crosby should have never treated his coach in that manner even if they were alone! Not only must the Penns get another coach but Crosby must be removed as captain or fined and reprimanded for his attitude. That is very destructive to a team. I immediately bet some friends the team would not beat the Rangers! There is poison in the dressing room caused by Crosby! It will take a stern coach to handle Crosby
What are two examples of fined grained igneous rocks?
Basalt and rhyolite are examples of fine-grained igneous rocks.
Is igneous rock that formed from cooling lava fined-grained?
yes because of the fast cooling rate
What texture does and extrusive igneous rock have?
fined grain texture
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Depositional environment for fined-grained yellow-brown moderately sorted fossiliferous sandstone?
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How old do you have to be to get your lip pierced without permisson in Montana?
18 violators will be either fined a maximum of $500, imprisoned for up to six months, or both. Those convicted of a second offense will either be fined a maximum of $1,000, imprisoned for up to six months, or both.
Magma that cools quickly does it produce rocks that are fined grained?
Generally speaking, yes. Magma that cools quickly will produce small, "fine grained" crystals.Magma which cools slowly will generally produce rocks with larger, visible to the naked eye, crystals.This is because while magma is cooling, crystals are forming. Generally, crystal which have more time to grow will be larger. Therefore, generally, the slower magma cools, the bigger the crystals will be. The faster lava cools, the less time crystals have to grow and are thus smaller, "fine grained".
What is the homophone for fined?
The homophone for "fined" is "find."
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The colonists would either get fined or put in jail if they did not pay the stamp tax.
What is a hononym for the word fined?
fined as in i was fined $200 dollars and find as in go find my pencil.
