I need a website for continental drift does anyone have any info or knows a website about continental drift??? PLEASE HURRY the plates are shifting away from me. KADI YOUR SO FAT YOUR MAKING THE PLATES SHIFT AWAY. THeyr sinking cause your so fat.
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Plate Tectonics, if that is what your referring to, the US-GS that's the United States Geological Survey has information on their web site about all things geological. Use the link below to find out more about Plate Tectonics.
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I believe that you are speaking of plate tectonics when referring to continents floating (islands do not...they are volcanic formations from oceanic plates), here is some info:\n\nContinents are made up of solid rock, and float in the fluid (a very viscous fluid) of the Earth's mantle (also called the magnasphere). If the specific gravity of the mantle and the specific gravity of continental material are known, it should be possible to calculate how continents float in the Earth's mantle. \nThe average continent is made up primarily of limestone, granite, or eroded granitic byproducts such as shale, siltstone, and sandstone, as well as metamorphics like slate, schist, and gneiss. However, most continents also have substantial amounts of andesite and basalt added in, from a past history of various volcanic events. The addition of these denser materials raises the average specific gravity for continental material to around 2.7. SiMa (from Silicon/Magnesium - its principal elements) is the material of the Earth's mantle - the 'fluid' in which continents are floating. To all appearances, this material is solid rock, but under the extreme pressure and temperature to which it is subjected, it actually flows like a liquid, albeit very slowly. Its specific gravity of 3.3 is high enough to insure that continents cannot sink. \n\nSo...it is all a matter of density...oceanic plates are made up of denser stone and so settle into the magnasphere lower than the lighter density continental formations.  As for the rock floating, I assume that you mean in water and the answer is the same...the density of the rock is much greater than water's...so it sinks.
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I don't put my faith in scientists. The same scientists say that the Earth is billions of years old and then they change the dates over and over. The truth is that no one really knows, how could they? Scientists said that certain fish died off millions of years ago, but they pull up fish off the coast of Madagascar that should have been extinct. I don't trust scientists because they claim to have facts when in reality they are theories.
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My grandmother, who is hardcore Southern Baptist, says the dinosaurs did not exist ever, that they were just bones planted by someone to support a fantasy. She also doesn't believe space exists.... I don't ask her questions anymore.
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Plate tectonics moves continents around in a cyclic pattern known as the Wilson Cycle. In about 250 million years in the future, we will again have a supercontinent.\n\nThe Paleomap Project has predicted what the earth will look like based on current evidence. The Atlantic Ocean will no longer exist, as North American will be forced up against Africa and Europe, and Indian Ocean may only remain as an inland sea.  Antarctica will again be at the South Pole and Australia will be pushed up against it. The southern part of South America will be adjoining Indonesia. \n\nThe area where the south Pacific is now is likely to have some new volcanic islands, but probably all of the currently existing islands will have been pushed up against a continent. The Pacific Ocean will be much larger than today and will cover half of the earth. \n\nHere is a map:\nhttp://www.scotese.com/future2.htm\n\nI would speculate that even further in the future as the supercontinent breaks up, it is likely that some portion of the supercontinent will move towards the South Pacific. \n\nVolcanism plays an important role in building continental plates, and is constantly adding continental material, but continental plates are composed primarily of less dense intrusive igneous rocks such as granite. Volcanoes produce extrusive igneous rocks, which do not make up the major parts of the continental land masses so volcanoes are not as important in continent building as other processes.  \n\nHere's a site that explains the Wilson Cycle:\nhttp://csmres.jmu.edu/geollab/fichter/Wilson/Wilson.html
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I hunted all over.. interesting question.. I found the link for you to browse. I learned some new information I had no idea about as well. Thank you. LL.
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Pangaea is the name of the original super-continent.\n\nPlate tectonics describes how the continents move.\n\nRead here: http://en.wikipedia.org/wiki/Plate_tectonics
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Plate tectonics (from the Greek word for "one who constructs and destroys", τεκτων, tektōn) is a theory of geology developed to explain the phenomenon of continental drift and is currently the theory accepted by the vast majority of scientists working in this area. In the theory of plate tectonics the outermost part of the Earth's interior is made up of two layers: the lithosphere comprising the crust and the solidified uppermost part of the mantle. Below the lithosphere lies the asthenosphere which comprises the inner viscous part of the mantle. The mantle behaves like a superheated and extremely viscous liquid.
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It was once thought that land on earth is stationary and that the continents had always been their current shape, even though they may have been covered by more water.\n\nMore recently however, it has been discovered that the continents were actually all one mass of land and at one point separated, floating apart on sheets of plate tectonics.  \n\nProof came quickly.  It is now easy to see the east coast of South America fitting into west Africa for instance.  Bones of related land-dwelling creatures were also found on the coastlines of the two distant continents.
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Nice idea.... but there is a BIG hole in your theory:\n\nThe moon broke off from the earth somewhere between 3.5 and 4.5 billion years ago.... i.e. the Hadean... the more specific name for the earlier Precambrian.\n\nPangaea didn't even begin moving together until 1.1 billion years ago, and wasn't together as one continent until about 500 million years ago.... during the Permian.\n\nOh... and tectonic plate movement is a result of thermal flows in the mantle.\n\nPangaea has nothing to do with the moon, sorry to say.
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Giant rock plates pushing against each other suddenly slip causing the earth to move, sending out ripples like in a pond.\n\nChildren can recreate the action of a fault slipping with their hands.  Place both hands together, palm-to-palm.  Push the palms together.  While pushing the palms together, slide one hand forward away from the body while sliding the other hand back toward the body.  At first, nothing will happen.  As force is added to the forward-backward movement, the hands will suddenly slip, much as the earth does during an earthquake.
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It does not help.  It is the LACK of sufficient conduction in the mantle that forces the core to get rid of its heat by mantle convection instead.  If the mantle conducted better, it wouldn't need to convect, and then there would be no plate tectonic movement at all.
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wow you sure have quite an informative site ! Nice recipes available. keep up the good work i have bookmark it already. hope you update the site often.
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Plate tectonics is the answer to your questions about weathering and erosion, as well as thickness of the continental crust. Plate tectonics moves and lifts continental plates continuously, and faster than erosion can carry the sediments away. Mt. Everest is a good example of this, as pressure from the adjoining crustal plates is lifting the mountain at a rate of a few centimeters a year. \n\nAs this pressure against the continental plates builds they often fold and break, and this causes parts of the contintal plates to slide up over other parts of the plate, making them thicker that the oceanic plates. \n\nAt present the only way to find the top of the mantle is using seismology. Siesmologists measure the way that shock waves (sound waves) move through the earth when earthquakes happen. By studying the way these sound waves are deflected from different rocks they can tell about how deep the boundary is between the crust and the mantle. \n\nHere is one of the best websites that explains plate tectonics. It has animated illustrations that show moving plates and how they have changed over time:\nhttp://www.ucmp.berkeley.edu/geology/tectonics.html
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Introduction\nPlate tectonics is a relatively new theory that has revolutionized the way geologists think about the Earth. According to the theory, the surface of the Earth is broken into large plates. The size and position of these plates change over time. The edges of these plates, where they move against each other, are sites of intense geologic activity, such as earthquakes, volcanoes, and mountain building. Plate tectonics is a combination of two earlier ideas, continental drift and sea-floor spreading. Continental drift is the movement of continents over the Earth's surface and in their change in position relative to each other. Sea-floor spreading is the creation of new oceanic crust at mid-ocean ridges and movement of the crust away from the mid-ocean ridges.
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The mechanisms of tectonic plate movement is quite complex, but in its simplest terms, tectonic plates float on molten magma of the earth's interior. Convection currents within the molten magma behave similarly to convection currents in a pan of water being heated on the stove. Water on the bottom of the pan is heated and begins to rise because it is slightly less dense than the cooler water on the top. The cooler is slightly more dense and begins to sink. As this water is heated, it begins to rise, thus a convection movement or convection current is created in the water in the pan. \n\nMagma is far more dense than water and is much hotter, but it is still a fluid. Magma near the core is hotter than the magma beneath the crust. Hotter magma moves up, cooler magma moves down, very very very slowly, but none the less, it moves. The crust, a.k.a. tectonic plates float on the magma. Float some pieces of Styrofoam on the water in the pan. What happens? The foam moves around by the convection forces in the water.  Tectonic plates do the same thing. Its just not as fast.\n\nHope this helps.
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I just took a peek, looks like a cool site. I will definatley  tell others. Hope it helps. And by asking the question u got the word out.