| Analysis of the search query | why do metamorphic rocks need to form deep underground |
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Top competitors on query "why do metamorphic rocks need to form deep underground"
Principal, teachers recount tornado hitting Oklahoma school - Rock Center with Brian Williams
http://rockcenter.nbcnews.com/_news/2013/05/24/18474498-principal-teachers-recount-tornado-hitting-oklahoma-school Competition: low
I would suggest that you would be better off focusing on the design of houses and schools - instead of spending a billion dollars on every school trying to beef it up - you will never win with 210 mph winds. Truth is, there is no proof one way or the other, therefore what you are saying is based on 0 fact and only wishful thinking or as scientists call it, a theory
Kotaku - The Gamer's Guide
http://kotaku.com/ Competition: low
President Barack Obama pressed Iranian President Hassan Rouhani today over the detention of three Americans in Iran, including one-time game developer Amir Hekmati, who has been jailed on espionage charges since late 2011. The third prong of Valve's all-out attack on living room gaming is the Steam Controller, a hackable gamepad with dual trackpads, haptic feedback and a touch screen
http://www.bible.ca/tracks/dating-radiometric.htm Competition: low
At low temperatures, this may become the dominant means by which argon diffuses into a mineral, but the effect of this kind of diffusion at low temperatures may not be evident until many years have passed. It also needs to be determined whether the daughter products for methods other than uranium-lead dating also yield isochrons among the different meteorites
http://tvtropes.org/pmwiki/pmwiki.php/Main/RuleOfCool Competition: low
Given the general nature of the comic, it makes perfect sense when he reveals (in "A Cumberland Ninja in King Radical's Court") that the world of the comic is halfway between Radical Land and a boring universe like ours, influenced by the energies of both, which is why it looks like the world we know with the addition of the occasional ninja doctor or vengeful astronaut ghost or an ogre running a supermarket. Great music? Check! Roger Ebert says in his review of the Iron Man movie that military weapons tend not to look nearly as cool as Iron Man, but also that "It wouldn't be nearly as much fun to see a fight scene between two refrigerators crossed with the leftovers from a boiler room." Pirates of the Caribbean: You got your pirates, your undead, your curses, your sea monsters, your totally impossible swordfights and Captain Jack Sparrow
How are rocks classified
http://wiki.answers.com/Q/How_are_rocks_classified Competition: low
Metamorphic rocks can also be described by the grade of metamorphism which has taken place from low to high, high being the closest to the next stage in the rock cycle, melting. Metamorphic rocks are classified as contact (from proximity to a magmatic intrusion) or regional (resulting from deep burial and pressures from plate collisions Metamorphic rock is also classified as foliated or non-foliated, foliation being the parallel alignment of the constituent minerals in bands that are perpendicular to the applied pressure
http://geology.com/articles/what-is-geology.shtml Competition: low
Employment Outlook: Over the next several years the number of geology job openings is expected to exceed the number of students graduating from university geology programs. Geologists conduct studies that locate rocks that contain important metals, plan the mines that produce them and the methods used to remove the metals from the rocks
http://www.scientificamerican.com/article.cfm?id=how-do-frogs-survive-wint Competition: low
Why? Antifreeze! True enough, ice crystals form in such places as the body cavity and bladder and under the skin, but a high concentration of glucose in the frog's vital organs prevents freezing. It is a dormant state an animal assumes in response to adverse environmental conditions, in this case, the prolonged dry season of certain tropical regions
Weathering Module Introduction
http://www2.pvc.maricopa.edu/~douglass/v_trips/wxing/introduction_files/rocktypes.html Competition: low
It changes rocks by changing the structure of minerals and by changing the orientation of mineral grains, particularly platy minerals like mica or clay. Through this kind of work, geologists have found a set of index minerals, which are common minerals which form under particular combinations of pressure and temperature
http://www.galleries.com/Rocks/limestone.htm Competition: low
Stromatolites, which are complex living structures of more than one organism (cyanobacteria and algae), formed the first reef like structures in the Cambrian Period. In fact reefs often build upon the skeletal debris of former reef inhabitants to continually grow upward to the sea surface where turbulence keeps the reef "clean" from sand and clay debris
http://geology.com/articles/diamonds-from-coal/ Competition: low
4) Formation in Space NASA researchers have detected large numbers of nanodiamonds in some meteorites (nanodiamonds are diamonds that are a few nanometers - billionths of a meter in diameter). 2) Diamond Formation in Subduction Zones Tiny diamonds have been found in rocks that are thought to have been subducted deep into the mantle by plate tectonic processes - then returned to the surface (4)
Rock (geology) - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Rock_(geology) Competition: low
The nature of mining processes creates a potential negative impact on the environment both during the mining operations and for years after the mine is closed. This process causes clastic sediments or organic particles (detritus) to settle and accumulate, or for minerals to chemically precipitate (evaporite) from a solution
DEEP: What Do I Do With...?
http://www.ct.gov/deep/cwp/view.asp?a=2718&q=325496 Competition: low
If you need to dispose of an item that you suspect may have one of these sensors, check with your recycling coordinator at your local town or city hall and find out if they collect "white goods" at your transfer station or landfill. There are several options for these items including giving them back to the dish companies, donation to a recycling center, selling online, or reuse of the dish for something else
Metamorphism - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Metamorphism Competition: low
Overthrusting may juxtapose hot lower crustal rocks against cooler mid and upper crust blocks, resulting in conductive heat transfer and localised contact metamorphism of the cooler blocks adjacent to the hotter blocks, and often retrograde metamorphism in the hotter blocks. The textures of dynamic metamorphic zones are dependent on the depth at which they were formed, as the temperature and confining pressure determine the deformation mechanisms which predominate
http://www.minsocam.org/MSA/collectors_corner/id/rock_key.htm Competition: low
What Minerals Make Up the Rock? calcite, or dolomite (dolomitic marble); Sometimes: graphite, pyrite, mica, tremolite, and a few others How Was It Formed? Marble forms from the metamorphism of limestones. How Was It Formed? Schists are usually formed from shales that were formed from clay or sandy clay, sometimes with a little lime, sometimes from rocks and sediments from volcanoes
Intrusive Igneous Rocks - Windows to the Universe
http://www.windows2universe.org/earth/geology/ig_intrusive.html Competition: low
RSS Feeds Science Blogs Perspectives on Earth and Space Science Education Real Climate: climate science from climate scientists EPA Greenversations Global Learning and Observations to Benefit the Environment Citizen Science Buzz Intrusive igneous rocks form in magma chambers that are deep underground. It may provide evidence that part of Antarctica was connected to North America hundreds of millions of years ago....moreSong of Nature, by Ralph Waldo EmersonMine are the night and morning, The pits of air, the gulf of space, The sportive sun, the gibbous moon, The innumerable days
Rock Types
http://www.rocks-rock.com/rock-types.html Competition: low
Most sedimentary rocks become cemented together by minerals and chemicals or are held together by electrical attraction; some, however, remain loose and unconsolidated. Today, in the Guadalupe Mountains of western Texas, one can stand on limestone, a sedimentary rock, that was a coral reef in a tropical sea about 250 million years ago
Types of Rocks - Igneous, sedimentary, metamorphic
http://www.rockcollector.co.uk/rocktype.htm Competition: low
Gypsum also known as "desert rose" Igneous - Igneous rocks get their name from the Latin word ignis, meaning "fire." They form from volcanic magma when a volcano erupts and are also referred to as volcanic rocks.Under the surface of the Earth the magna is kept liquid by high temperature and high pressure. Most sedimentary rocks become cemented together by minerals and chemicals present when they are formed, and others are held together by electrical attraction
USGS Geology in the Parks
http://geomaps.wr.usgs.gov/parks/rxmin/rock3.html Competition: low
Despite these uncomfortable conditions, metamorphic rocks do not get hot enough to melt, or they would become igneous rocks! Foliated metamorphic rock Foliation forms when pressure squeezes the flat or elongate minerals within a rock so they become aligned. It's not hard to see that this metamorphic rock, called gneiss, has been intensely folded! This rock had to have been under very high pressure and temperature to allow it to fold like this without breaking
About Igneous Rocks
http://geology.about.com/cs/basics_roxmin/a/aa011804a.htm Competition: low
Because they solidified from a fluid state, igneous rocks tend to have a uniform fabric without layers, and the mineral grains are packed together tightly. They generally talk about basaltic and granitic or granitoid rocks among themselves and out in the field, because it takes laboratory work to determine an exact rock type according to the official classifications
Why Do Earthquakes Happen?
http://www.geo.mtu.edu/UPSeis/why.html Competition: low
This fact has been exploited as a means to enforce the global nuclear test ban, because no nuclear warhead can be detonated on earth without producing such seismic waves
WVGES Frequently Asked Questions
http://www.wvgs.wvnet.edu/www/faq/faq.htm Competition: low
At its highest level, Lake Monongahela was 200 miles long and 100 miles wide, and flooded all land below 1,100 feet in elevation in parts of northwestern West Virginia and southwestern Pennsylvania. Most natural gems are hard minerals formed from the crystallization of gases and fluids in the earth and are found with either igneous rocks (solidified molten material) or metamorphic rocks (changed by heat, pressure, or chemical reaction)
Metamorphic Rocks - Windows to the Universe
http://www.windows2universe.org/earth/geology/meta_intro.html Competition: low
RSS Feeds Science Blogs Perspectives on Earth and Space Science Education Real Climate: climate science from climate scientists EPA Greenversations Global Learning and Observations to Benefit the Environment Citizen Science Buzz Metamorphism usually happens where plates are coming together; rocks are heated and are under high pressure
Metamorphic rock: Definition from Answers.com
http://www.answers.com/topic/metamorphic-rock Competition: low
Because of the role played by water, metamorphic rocks generally contain many elements absent from the original rock, and lack some that originally were present. However, all minerals are stable only within certain limits, and the presence of some minerals in metamorphic rocks indicates the approximate temperatures and pressures at which they formed
http://topex.ucsd.edu/es10/lectures/lecture16/lecture16.html Competition: low
(Of course people who study this make a much bigger deal out of it! If magmas don't have much silica, their minerals are dominated by magnesium and iron (Fe) - hence the term MAFIC (MA- from the magnesium and FIC from the Fe), or even ULTRAMAFIC for the really silica poor varieties. Because of the great conveyor belt of plate tectonics, rocks can encounter a variety of environmental conditions riding around in pressure, temperature, fluid space
Metamorphic Rocks
http://jersey.uoregon.edu/~mstrick/RogueComCollege/RCC_Lectures/Metamorphic.html Competition: low
Click here for online mineral and rock ID charts Increasing grade very common in sedimentary sequences Layers of sediment pile up deeper and deeper Leads to lithification of the lower layers As additional layers of sediments are added on top, the lowest portions begin to metamorphose Followed to its logical conclusion... 247) Very hard and durable Looks like sandstone But, the rock will break through the quartz grains, not around them Hornfels: derived from shale (usually) Also very hard, dense, and durable Marble: derived from limestone (Monroe; fig
How Rocks Are Formed
http://www.rocksforkids.com/RFK/howrocks.html Competition: low
Just like your DNA determines the colour of your eyes, how tall you will get to be and the shape of your bones, the chemicals that a mineral is made of determines what shape it gets to be. Soil has many names including: clay, silt, mud, dirt, topsoil, dust, potting soil and humus THE ROCK CYCLE Rocks are constantly being formed, worn down and then formed again
Metamorphic Rocks
http://library.thinkquest.org/J002289/meta.html Competition: low
Classified by texture and composition Rarely has fossils May react with acid May have alternate bands of light and dark minerals May be composed of only one mineral, ex. Metamorphic rocks form deep in the earth where high temperature, great pressure, and chemical reactions cause one type of rock to change into another type of rock
Principal, teachers recount tornado hitting Oklahoma school - Rock Center with Brian Williams
I would suggest that you would be better off focusing on the design of houses and schools - instead of spending a billion dollars on every school trying to beef it up - you will never win with 210 mph winds. Truth is, there is no proof one way or the other, therefore what you are saying is based on 0 fact and only wishful thinking or as scientists call it, a theory
Kotaku - The Gamer's Guide
President Barack Obama pressed Iranian President Hassan Rouhani today over the detention of three Americans in Iran, including one-time game developer Amir Hekmati, who has been jailed on espionage charges since late 2011. The third prong of Valve's all-out attack on living room gaming is the Steam Controller, a hackable gamepad with dual trackpads, haptic feedback and a touch screen
At low temperatures, this may become the dominant means by which argon diffuses into a mineral, but the effect of this kind of diffusion at low temperatures may not be evident until many years have passed. It also needs to be determined whether the daughter products for methods other than uranium-lead dating also yield isochrons among the different meteorites
Given the general nature of the comic, it makes perfect sense when he reveals (in "A Cumberland Ninja in King Radical's Court") that the world of the comic is halfway between Radical Land and a boring universe like ours, influenced by the energies of both, which is why it looks like the world we know with the addition of the occasional ninja doctor or vengeful astronaut ghost or an ogre running a supermarket. Great music? Check! Roger Ebert says in his review of the Iron Man movie that military weapons tend not to look nearly as cool as Iron Man, but also that "It wouldn't be nearly as much fun to see a fight scene between two refrigerators crossed with the leftovers from a boiler room." Pirates of the Caribbean: You got your pirates, your undead, your curses, your sea monsters, your totally impossible swordfights and Captain Jack Sparrow
How are rocks classified
Metamorphic rocks can also be described by the grade of metamorphism which has taken place from low to high, high being the closest to the next stage in the rock cycle, melting. Metamorphic rocks are classified as contact (from proximity to a magmatic intrusion) or regional (resulting from deep burial and pressures from plate collisions Metamorphic rock is also classified as foliated or non-foliated, foliation being the parallel alignment of the constituent minerals in bands that are perpendicular to the applied pressure
Employment Outlook: Over the next several years the number of geology job openings is expected to exceed the number of students graduating from university geology programs. Geologists conduct studies that locate rocks that contain important metals, plan the mines that produce them and the methods used to remove the metals from the rocks
Why? Antifreeze! True enough, ice crystals form in such places as the body cavity and bladder and under the skin, but a high concentration of glucose in the frog's vital organs prevents freezing. It is a dormant state an animal assumes in response to adverse environmental conditions, in this case, the prolonged dry season of certain tropical regions
Weathering Module Introduction
It changes rocks by changing the structure of minerals and by changing the orientation of mineral grains, particularly platy minerals like mica or clay. Through this kind of work, geologists have found a set of index minerals, which are common minerals which form under particular combinations of pressure and temperature
Stromatolites, which are complex living structures of more than one organism (cyanobacteria and algae), formed the first reef like structures in the Cambrian Period. In fact reefs often build upon the skeletal debris of former reef inhabitants to continually grow upward to the sea surface where turbulence keeps the reef "clean" from sand and clay debris
4) Formation in Space NASA researchers have detected large numbers of nanodiamonds in some meteorites (nanodiamonds are diamonds that are a few nanometers - billionths of a meter in diameter). 2) Diamond Formation in Subduction Zones Tiny diamonds have been found in rocks that are thought to have been subducted deep into the mantle by plate tectonic processes - then returned to the surface (4)
Rock (geology) - Wikipedia, the free encyclopedia
The nature of mining processes creates a potential negative impact on the environment both during the mining operations and for years after the mine is closed. This process causes clastic sediments or organic particles (detritus) to settle and accumulate, or for minerals to chemically precipitate (evaporite) from a solution
DEEP: What Do I Do With...?
If you need to dispose of an item that you suspect may have one of these sensors, check with your recycling coordinator at your local town or city hall and find out if they collect "white goods" at your transfer station or landfill. There are several options for these items including giving them back to the dish companies, donation to a recycling center, selling online, or reuse of the dish for something else
Metamorphism - Wikipedia, the free encyclopedia
Overthrusting may juxtapose hot lower crustal rocks against cooler mid and upper crust blocks, resulting in conductive heat transfer and localised contact metamorphism of the cooler blocks adjacent to the hotter blocks, and often retrograde metamorphism in the hotter blocks. The textures of dynamic metamorphic zones are dependent on the depth at which they were formed, as the temperature and confining pressure determine the deformation mechanisms which predominate
What Minerals Make Up the Rock? calcite, or dolomite (dolomitic marble); Sometimes: graphite, pyrite, mica, tremolite, and a few others How Was It Formed? Marble forms from the metamorphism of limestones. How Was It Formed? Schists are usually formed from shales that were formed from clay or sandy clay, sometimes with a little lime, sometimes from rocks and sediments from volcanoes
Intrusive Igneous Rocks - Windows to the Universe
RSS Feeds Science Blogs Perspectives on Earth and Space Science Education Real Climate: climate science from climate scientists EPA Greenversations Global Learning and Observations to Benefit the Environment Citizen Science Buzz Intrusive igneous rocks form in magma chambers that are deep underground. It may provide evidence that part of Antarctica was connected to North America hundreds of millions of years ago....moreSong of Nature, by Ralph Waldo EmersonMine are the night and morning, The pits of air, the gulf of space, The sportive sun, the gibbous moon, The innumerable days
Rock Types
Most sedimentary rocks become cemented together by minerals and chemicals or are held together by electrical attraction; some, however, remain loose and unconsolidated. Today, in the Guadalupe Mountains of western Texas, one can stand on limestone, a sedimentary rock, that was a coral reef in a tropical sea about 250 million years ago
Types of Rocks - Igneous, sedimentary, metamorphic
Gypsum also known as "desert rose" Igneous - Igneous rocks get their name from the Latin word ignis, meaning "fire." They form from volcanic magma when a volcano erupts and are also referred to as volcanic rocks.Under the surface of the Earth the magna is kept liquid by high temperature and high pressure. Most sedimentary rocks become cemented together by minerals and chemicals present when they are formed, and others are held together by electrical attraction
USGS Geology in the Parks
Despite these uncomfortable conditions, metamorphic rocks do not get hot enough to melt, or they would become igneous rocks! Foliated metamorphic rock Foliation forms when pressure squeezes the flat or elongate minerals within a rock so they become aligned. It's not hard to see that this metamorphic rock, called gneiss, has been intensely folded! This rock had to have been under very high pressure and temperature to allow it to fold like this without breaking
About Igneous Rocks
Because they solidified from a fluid state, igneous rocks tend to have a uniform fabric without layers, and the mineral grains are packed together tightly. They generally talk about basaltic and granitic or granitoid rocks among themselves and out in the field, because it takes laboratory work to determine an exact rock type according to the official classifications
Why Do Earthquakes Happen?
This fact has been exploited as a means to enforce the global nuclear test ban, because no nuclear warhead can be detonated on earth without producing such seismic waves
WVGES Frequently Asked Questions
At its highest level, Lake Monongahela was 200 miles long and 100 miles wide, and flooded all land below 1,100 feet in elevation in parts of northwestern West Virginia and southwestern Pennsylvania. Most natural gems are hard minerals formed from the crystallization of gases and fluids in the earth and are found with either igneous rocks (solidified molten material) or metamorphic rocks (changed by heat, pressure, or chemical reaction)
Metamorphic Rocks - Windows to the Universe
RSS Feeds Science Blogs Perspectives on Earth and Space Science Education Real Climate: climate science from climate scientists EPA Greenversations Global Learning and Observations to Benefit the Environment Citizen Science Buzz Metamorphism usually happens where plates are coming together; rocks are heated and are under high pressure
Metamorphic rock: Definition from Answers.com
Because of the role played by water, metamorphic rocks generally contain many elements absent from the original rock, and lack some that originally were present. However, all minerals are stable only within certain limits, and the presence of some minerals in metamorphic rocks indicates the approximate temperatures and pressures at which they formed
(Of course people who study this make a much bigger deal out of it! If magmas don't have much silica, their minerals are dominated by magnesium and iron (Fe) - hence the term MAFIC (MA- from the magnesium and FIC from the Fe), or even ULTRAMAFIC for the really silica poor varieties. Because of the great conveyor belt of plate tectonics, rocks can encounter a variety of environmental conditions riding around in pressure, temperature, fluid space
Metamorphic Rocks
Click here for online mineral and rock ID charts Increasing grade very common in sedimentary sequences Layers of sediment pile up deeper and deeper Leads to lithification of the lower layers As additional layers of sediments are added on top, the lowest portions begin to metamorphose Followed to its logical conclusion... 247) Very hard and durable Looks like sandstone But, the rock will break through the quartz grains, not around them Hornfels: derived from shale (usually) Also very hard, dense, and durable Marble: derived from limestone (Monroe; fig
How Rocks Are Formed
Just like your DNA determines the colour of your eyes, how tall you will get to be and the shape of your bones, the chemicals that a mineral is made of determines what shape it gets to be. Soil has many names including: clay, silt, mud, dirt, topsoil, dust, potting soil and humus THE ROCK CYCLE Rocks are constantly being formed, worn down and then formed again
Metamorphic Rocks
Classified by texture and composition Rarely has fossils May react with acid May have alternate bands of light and dark minerals May be composed of only one mineral, ex. Metamorphic rocks form deep in the earth where high temperature, great pressure, and chemical reactions cause one type of rock to change into another type of rock
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