There is no relationship between the movement of earth's plates and volcanoes.?
344523
Well, yeah, there is a relationship.  Most of our recent volcanoes occur near the boundaries of plates.  At mid-ocean ridges hot magma is welling up and cooling to make the plates on either side larger.  Iceland, with its many volcanoes, is on the Mid-Atlantic Ridge.  Where oceanic plates are pushed under other plates (subducted), they are forced deeper into earth where it's hotter, and the subducted plate tends to melt.  The lighter parts of the melt try to work their way toward the surface (because they're less dense, and, hence buoyant), and cause volcanoes such as those of the Pacific's Ring of Fire--Indonesian volcanoes, Japanese volcanoes such as Mount Fuji, Alaska's volcanoes, the Cascade Range in Washington State, and so on.\n\nSome volcanoes are associated with "hot spots", where a plume of magma flows toward the surface, but is not associated with a plate boundary.  The Hawaiian Islands are an example of such a hot spot.  Plate tectonics also affect things here.  The plate moves over the hot spot, continually making new islands.  The newest one hasn't reached the surface yet.  Hawai'i is the newest one that's above the surface, and as you move north and west along the Hawai'ian Archipelago, the islands are progressively older and, because they've had more time to be eroded, smaller.  Northwest of the archipelago are the Emperor Seamounts, islands that were eroded until they no longer reach the ocean's surface.
1025704
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.
234822
earthquakes ... \nseismic activity ... \n\nand these happen when PLATES move! It's not movement in the rocks that causes earthquakes.  And the dynamics of plate movement is called "plate tectonics".\n\nMoreover, plate tectonics include volcanic behaviour, continental drift, and mountains (making, destrucion, etc)\n\nBut then again, I really don't know what you're trying to ask!
119467
Plate tectonics is deeply connected with physics, and was discovered by geophysicists using techniques from physics.\n\nFor example:\n\n1. Fluid mechanics\n2. continuum mechanics\n3. electromagnetism\n4. newton's laws\n\nPlate tectonics was discovered by looking at stripes of magnetization on the sea floor. These are from the earth's field, which is caused by a dynamo, which is very complicated physics, involving electromagnetism and fluid mechanics. The plates move because of entrainment by moving fluids beneath. There is a lot of thermodynamics involved in the heat transfer and the cooling of the plates after they emerge from a midcean ridge; they contract as they cool. There is continuum mechanics involved in the deformation of the plates as they collide or get subducted. Islands on the plate surface can cause the plates to flex, and this is studied by continuum mechanics. One could make a very extensive list, that would probably include quantum mechanics, and even nuclear physics (which creates the heat that drives the plates), and only exclude quantum effects.
995032
It may gas off or have some activity,but the conditions that created it will probably not happen again.No one should be ramping up fear of the super volcanoes as there is not even a scintilla of enough earth heating to make them blow.
1169235
Yes. The tectonic plates that make up the earth move a few centimeters a year. No one denies that except for people who do not believe in earthquakes (or understand what they are). So over a long enough period of time the movement would move the continents. If you look at the shapes of the various continents they clearly fit together. Coincidence? Maybe. But rationally speaking it seems like the safe bet is Pangea really did exist. Not to mention the fossil records that support the theory.
126189
The things he failed to provide he had no way of knowing existed. His observation was correct, and the fossil evidence, glacial evidence, and evidence of matching geologic formations across continents were correct. He failed to provide a credible mechanism to explain the movement of continents. Because it was assumed that oceanic plates were stationary, it was easy to invalidate his hypothesis. That assumption turned out to be wrong. \n\nAt that time the ocean floor was an unexplored and unknown part of the planet. Wegener had no way of knowing that volcanically-active mid-ocean ridges existed in every ocean basin. The mid-Atlantic ridge was known, but no significance was given to this. Wegener had suggested that the continents actually disrupted the ocean floor as they moved, and there was no evidence to support that idea.
835536
i am not a seismologist but i think the movement of plates create holes and cracks beneath the crust that may cause the formation of openings where the hot gases and great pressures pass through and for several months or years a violent volcano may explode!
1063417
The beginnings of the theory of plate tectonics date to around 1920, when Alfred Wegener, the German meteorologist and geophysicist, presented the first detailed accounts of how today's continents were once a large supercontinent that slowly drifted to their present positions. Others brought forth evidence, but plate tectonics processes and continental drift did not attract wide interest until the late 1950s, when scientists found the alignment of magnetic particles in rock responded to the earth's magnetic field of that time. Plotting paleomagnetic polar changes (see paleomagnetism) showed that all continents had moved across the earth over time.\n\nSynthesized from these findings and others in geology, oceanography, and geophysics, plate tectonics theory holds that the lithosphere, the hard outer layer of the earth, is divided into about 7 major plates and perhaps as many as 12 smaller plates, c.60 mi (100 km) thick, resting upon a lower soft layer called the asthenosphere. Because the sides of a plate are either being created or destroyed, its size and shape are continually changing. Such active plate tectonics make studying global tectonic history, especially for the ocean plates, difficult for times greater than 200 million years ago. The continents, which are c.25 mi (40 km) thick, are embedded in some of the plates, and hence move as the plates move about on the earth's surface.\n\nThe mechanism moving the plates is at present unknown, but is probably related to the transfer of heat energy or convection within the earth's mantle. If true, and the convection continues, the earth will continue to cool. This will eventually halt the mantle's motion allowing the crust to stabilize, much like what has happened on other planets and satellites in the solar system, such as Mars and the moon.
244145
Not exactly pressure.  Tectonic plates under the Earth's crust are constantly in motion.  When they collide, mountains are formed.  These mountains become volcanoes when the tectonic plates hit each other and then move further apart, therefore creating a direct channel to the molten core of the earth.  When the molten material builds up it shoots up the hole of a volcano.
390729
Thank you viking I thought I was the only sane person on earth. The worlds climate has changed constantly since the earth was formed. Its simple geology. What about the volcanoes spewing gas into the atmosphere constantly. The earth is under constant change.
1096356
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.
919609
I have never heard of gap junctions. I don't believe they exist in Geology.
204103
earthquakes happen because the earth plates are always moving , sometimes they move gently and we cant even feel them but sometimes they move violently causing a earthquake also they are the reason we have volcanos ....
54493
Volcanoes are usually situated either at the boundaries between tectonic plates or over geology hotspots. Volcanoes may be either dormant (having no activity) or active (near constant expulsion and occasional eruptions), and change state unpredictably.\n\nSurprisingly, there is no consensus among volcanologists on how to define an "active" volcano. The lifespan of a volcano can vary from months to several million years, making such a distinction sometimes meaningless when compared to the lifespans of humans or even civilizations. For example, many of Earth's volcanoes have erupted dozens of times in the past few thousand years but are not currently showing signs of activity. Given the long lifespan of such volcanoes, they are very active. By our lifespans, however, they are not. Complicating the definition are volcanoes that become restless but do not actually erupt. Are these volcanoes active?
1049359
There are explosions in and on the surface of the sun, but as for volcanoes like here on earth no there are none. Since the surface of the sun is molten (which means not solid) there are no mountains on the sun.
56322
Volcanoes occur in hotspots where the earths crust is thin, most often around subduction zones, or areas where the tectonic plates are colliding and one plate is sliding under the other. There are other places where volcanos or hotspots occur, such as Hawaii, but in that case the chain of islands known as Hawaii are being pushed north by the movement of the tectonic plate there. In fact right now there is another island being built beneath the ocean just south of the main island. The earth is slowly cooling though events such as these. Beneath the crust the magma is under intense pressure and it has to escape somewhere, so it does escape at these weak places in the earths crust which we call volcanos.\n\nOf course I could have just plagarized my answer like  mikah_nine, but instead I opted to answer from my own knowledge and even include a source.