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Topic: List of tectonic plates


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  List of reference tables - Mirrorpedia   (Site not responding. Last check: 2007-10-26)
List of mean centers of U.S. population during the 20th century
List of birds of Santa Cruz County, California
List of notable United Kingdom House of Lords cases
mirrorpedia.com /wiki/List_of_reference_tables   (839 words)

  
  Tectonic plate - Wikipedia, the free encyclopedia
The tectonic plates of the world were mapped in the second half of the 20th century.
A tectonic plate is a piece of the Earth's crust and uppermost mantle (together referred to as the lithosphere).
The churning of the asthenosphere carries the plates along in a process known as continental drift, which is explained by the theory of plate tectonics.
en.wikipedia.org /wiki/Tectonic_plates   (330 words)

  
 ipedia.com: Plate tectonics Article   (Site not responding. Last check: 2007-10-26)
Plate tectonics (from the Greek for "builder", tekton) is a theory of geology developed to explain the phenomenon of continental drift.
In the theory of plate tectonics the outermost part of the Earth's interior is made up of two layers, the outer lithosphere and the inner asthenosphere.
Plate boundaries are the home of the majority of the world's active volcanoes with the Pacific Plate's Ring of Fire being most active and famous.
www.ipedia.com /plate_tectonics.html   (1905 words)

  
 Plate tectonics - Psychology Central   (Site not responding. Last check: 2007-10-26)
Plate tectonics (from the Greek word for "one who constructs and destroys", τεκτων, tekton) 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.
These plates (and the more numerous minor plates) move in relation to one another at one of three types of plate boundaries: convergent (or destructive, two plates push against one another), divergent (or constructive, two plates move away from each other), and transform (two plates slide past one another).
Plate tectonic theory arose out of two separate geological observations: continental drift, noticed in the early 20th century, and seafloor spreading, noticed in the 1960s.
psychcentral.com /psypsych/Tectonic   (4311 words)

  
 Howstuffworks "How Earthquakes Work"
The biggest scientific breakthrough in the history of seismology -- the study of earthquakes -- came in the middle of the 20th century, with the development of the theory of plate tectonics.
Scientists proposed the idea of plate tectonics to explain a number of peculiar phenomenon on earth, such as the apparent movement of continents over time, the clustering of volcanic activity in certain areas and the presence of huge ridges at the bottom of the ocean.
At some boundaries where two plates meet, neither plate is in a position to subduct under the other, so they both push against each other to form mountains.
science.howstuffworks.com /earthquake2.htm   (408 words)

  
 List of reference tables Details, Meaning List of reference tables Article and Explanation Guide
This is a list of reference tables, similar to the collection of reference tables found at the back of almanacs, dictionaries and encyclopedias (or an index of them, if they're scattered throughout the work).
List of city nicknames (with a separate list of city nicknames in the United States)
List of monasteries dissolved by Henry VIII of England
www.e-paranoids.com /l/li/list_of_reference_tables.html   (1023 words)

  
 Tectonic plate Did You Mean tectonic_plate   (Site not responding. Last check: 2007-10-26)
A Tectonic plate is a piece of the Earth's crust (or lithosphere).
The plates are around 100 km (60 miles) thick and consist of two principal types of material: oceanic crust (also called sima) and continental crust (sial).
As far as is known, the Earth is the only planet in the Solar System to possess tectonic plates, although there have been suggestions that Mars may also have possessed plates in the past before the planet's crust froze in place.
www.did-you-mean.com /Tectonic_plate.html   (287 words)

  
 Plate Tectonics : Tectonic Plates
While most plates are comprised of both continental and oceanic crust the giant Pacific Plate is almost entirely oceanic, and the tiny Turkish-Aegean Plate is entirely land.
The relative small size of the numerous other plates neither diminishes their significance, nor their impact on the surface activity of the planet.
The jostling of the tiny Juan de Fuca Plate, for example, sandwiched between the Pacific and North American Plate near the state of Washington, is largely responsible for the frequent tremors and periodic volcanic eruptions in that region of the country.
www.platetectonics.com /book/page_2.asp   (208 words)

  
 Plate Tectonic Reconstructions at UTIG
PLATES maintains an up-to-date oceanic magnetic and tectonic database, continuously adding new paleomagnetic, hot spot, geological and geophysical data to extend the span and accuracy of global plate reconstructions.
PLATES' reconstructions are built around a comprehensive database of finite-difference poles of rotation, derived both from extensive plate motion research at UTIG, using the PLATES interactive plate modeling software, and from published studies.
The plate model developed by the PLATES Project describes the evolution of the earth's oceans and the movement of the earth's tectonic plates from the Late Precambrian through the present day.
www.ig.utexas.edu /research/projects/plates   (672 words)

  
 Plate Tectonics Links
USGS -- Major Tectonic Plates of the World has maps, general information and boundaries.
Plate Tectonics animations show the growth of sea floor and continental movements back to 150 million years ago.
Webdogs Virtual Plate Tectonics gives a link list for sites about mapping and reconstructions of the plates through time.
ebeltz.net /niftylinks/platech.html   (173 words)

  
 Plate tectonics
Due to convective currents in the asthenosphere, the tectonic plates undergo motion in different directions.
The second hypothesis suggests that, if one end of a plate is being subducted at a convergent boundary, the downgoing slab of material will exert a stress on the other end, thus pulling it away.
At the surface, the topographic expression is commonly an oceanic trench on the oceanic side, and a mountain range on the continental side.
usapedia.com /p/plate-tectonics.html   (1644 words)

  
 earthquake
The solid earth is in slow but constant motion (see plate tectonics) and earthquakes occur where the resulting stress exceeds the capacity of Earth materials to support it.
This condition is most often found at (and the resulting frequent occurrence of earthquakes is used to define) the boundaries of the tectonic plates into which the Earth's lithosphere can be divided.
Events that occur at plate boundaries are called interplate earthquakes; the less frequent events that occur in the interior of the lithospheric plates are called intraplate earthquakes.
en.mcfly.org /earthquake   (1100 words)

  
 Tectonic Plates: Insights on Earthquakes   (Site not responding. Last check: 2007-10-26)
Tectonic plates The tectonic plates are the large, thin, relatively rigid plates that move relative to one another on the outer surface of the Earth.
Tectonic Plates by Stephen W. Tectonic Plates Tectonic is Greek for "to put together or take apart." Tectonic plates are found under the oceans and continents.
Plate tectonics is the continual slow movement of the tectonic plates, the outermost part of the earth.
www.quireearthquakes.com /tectonicplates   (820 words)

  
 Plate Tectonics: GEOLOGY LAB
Using your lab handouts, identify the three plates that are involved in the triple junction that is pictured.
This Plate Tectonic map is available online (Warning: This is a large image and will open in a new browser window).
The single lines with gray borders indicate divergent plate boundaries, the "triangle" symbol represents convergent plate boundaries and the single line with or without the arrows indicate transform plate boundaries.
facweb.bhc.edu /academics/science/harwoodr/GEOL101/labs/PlateTectonics3   (169 words)

  
 The Doomsday List
There are those few brave souls, however, who are willing to stick their necks out, and give us a date in the near future, when they themselves will presumably still be around to either bask in the glow of glory, or suffer the slings and arrows of outrageous fortune, should the cosmic plan go awry.
Before we dismiss this as yet another of Ron's ravings (he has graced this list before), we should point out that Bonnie Gaunt was able to confirm this revelation through the use of oh-so-trustworthy numerology.
The list of "somethings" include a hyperspatial breakthrough, planetesimal impact, alien contact or even a quasar ignition at the galactic core.
www.2think.org /hundredsheep/skeptic/predictions.shtml   (2894 words)

  
 Wikipedia:Simple talk - Simple English Wikipedia
One could argue that a heavily red list of names is still valuable by showing which, among the small number of bios, a user is having trouble finding bcz of misspelling, and which are truly missing, whether regretably or bcz they are not needed.
The lists that ARE worth keeping probably need more visibility: such as, at least a Cat for 'Lists', and having the lists added as 'see also's to more articles, and put in more cats.
Kept ones also need some review, as the copy of List of tectonic plates that was copied here had some BS that was later removed on EN, but given the lower traffic here stayed until I found it just recently.
simple.wikipedia.org /wiki/Wikipedia:Simple_talk   (11468 words)

  
 Plate Tectonic Resources   (Site not responding. Last check: 2007-10-26)
Plate Tectonic Animations NEW Breakup of Pangea: Pangea Breakup VR NEW Tectonic Evolution of the North Atlantic: N. Atlantic VR...
Horizontal velocities, mostly due to motion of the Earth's tectonic plates and deformation in plate boundary zones, are represented on the...
Japan sits at the juncture of four tectonic plates - or moving slabs of the earth's outer crust - and is one of the world's most quake-prone regions.
www.easy-licenseplate.info /plate-tectonic   (1171 words)

  
 [No title]
List the types of forces acting at the following types of plate boundaries and give examples for each: FORCE OCEANIC EXAMPLE CONT.
Give two lines of proof that one plate is plunging beneath another behind a trench.
Plate velocities are measured in _________ per year.
www.eps.mcgill.ca /~venetia/dawson/quiz_2.doc   (431 words)

  
 [No title]   (Site not responding. Last check: 2007-10-26)
The Theory of Plate Tectonics supplies proof that the upper layer of the Earth, the lithosphere, is rigid and it is basically floating on the lower layer, the asthenosphere.
List the reasons that Plate Tectonics was more accepted than the Theory of Continental Drift.
StarLab inflatable planetarium with the plate tectonics projection cylinder Procedure: Use the maps provided or any other photocopied maps of the tectonic plates to reconstruct a map of Pangaea as it looked 250 million years ago.
services.juniata.edu /ScienceInMotion/middle/labs/earth/geo/StarLab_Geo.doc   (1755 words)

  
 Plate Tectonics Indo-Australian Plate
Australia, which sits at the leading edge of the giant Indo-Australian Plate, moves in a northeasterly [right] direction.
The Pacific Plate, moving northwest, subducts under the eastern edge of the Philippine Plate.
This area of subduction is a hotbed of volcanic and earthquake activity and part of the infamous "Ring of Fire." You can see a mid-ocean ridge to the south of Australia, the site of sea-floor spreading.
www.platetectonics.com /oceanfloors/australian.asp   (113 words)

  
 Planet Diary Volcano Activity
You'll also learn about the different ways that tectonic plates can interact along plate boundaries and which situations are likely to cause volcanoes to erupt.
Using the latitude and longitude given in the volcano list above, you can determine the tectonic plates by locating the ten volcanoes on this NASA map of the world.
To learn more about what can happen when tectonic plates meet each other, go to The Action is at the Edges.
www.phschool.com /science/planetdiary/background/volcacti.html   (382 words)

  
 TheTexts.com Text Resources, Online Library, References, Free Encyclopedias, eBooks, Dictionary, Web Publishing, Net ...
This is a list of reference tables, similar to the collection of reference tables found at the back of almanacs, dictionaries and encyclopedias (or an index of them, if they're scattered throughout the work).
List of mean centers of U.S. population during the 20th century
List of monasteries dissolved by Henry VIII of England
www.thetexts.com /lists_by_topic.html   (878 words)

  
 SVS Animation 2953 - Tectonic Plates and Plate Boundaries (WMS)
Convergent boundaries are areas where two plates are pushing against each other and one plate may be subducting under another.
Transform boundaries are places where two plates are sliding against each other in opposite directions, and diffuse boundaries are places where two plates have the same relative motion.
An image of the Earth's major tectonic plates, with the plate boundary types indicated.
svs.gsfc.nasa.gov /vis/a000000/a002900/a002953   (241 words)

  
 Lecture 2   (Site not responding. Last check: 2007-10-26)
The interior of the Earth that moves by convection is hot enough to deform plastically - this is the asthenosphere.
The rigid outer skin, the tectonic plates, are where earthquakes occur and the crust upon which we live is - this is the lithosphere.
Plate velocities are ~ 2 to 15 cm/yr (pretty fast!), and this produces tectonic earthquakes at all three types of plate boundaries (extension, subduction, transform).
www.geology.wisc.edu /~g111/Lectures/lecture2.htm   (596 words)

  
 Activities!
Plot the paths of meteors on a starfield plate to illustrate the radiant of a meteor shower.
Build the ultimate plate model that depicts features of celestial sphere, indicates real time position of planets and zodiac, and illustrates rising and setting position of sun for any date.
Simulate an archeological dig with a stack of plates and recreate a timeline as you peel away plates that each represent a given number of years.
analyzer.depaul.edu /paperplate/activities.htm   (2135 words)

  
 The Citizen Scientist
Viscosity disperses this motion to the surrounding material, per unit mass, at a characteristic rate of nu U/L^2, where nu is the kinematic viscosity of the fluid.
The ratio of these two rates (or forces) is a new dimensionless group called the Stokes number, S_k = omega L^2/nu, and, if I apply a kinematic viscosity typical of the soft portion of the Earth's mantle (10^(-9) in SI units), then S_k = 10^(-4).
The smallness of the Rossby number indicates that large, slowly moving tectonic plates should develop rotation from the Coriolis force, but the smallness of the Stokes number shows that viscosity disperses this rotation throughout the body of the Earth as rapidly as it develops.
www.sas.org /tcs/weeklyIssues_2005/2005-06-03/feature2   (2013 words)

  
 Geography Unit   (Site not responding. Last check: 2007-10-26)
The theory of plate tectonics relies on the existence of large crustal plates on the earths surface.
The interactions which occur at these boundaries are determined by the type of plates involved and the type and direction of the pressure applied to the plates.
After the subject has been explored in the class you will be expected to outline the major plates and their boundaries on a world map using the knowledge you have gained during this and any previous lesson.
www.arches.uga.edu /~pboat/geographyunit/lesson2.html   (229 words)

  
 10.5
The 1994 Northridge earthquake (M 6.7) is an example of an earthquake caused by this convergence.
Independent of plate motion, Barstow is at an elevation of over 2100 feet (640 meters).
Earthquakes are part of a global tectonic process that generally occurs well beyond the influence or control of humans.
www.earthquakecountry.info /10.5/MajorMovieMisconceptions   (2986 words)

  
 Plate Tectonics Web Sites, Educational Resources for K-16
Kentucky is on the North American plate between latitudes 37 and 39 and longitudes -82 and -89.
Lets you click on a plate for a closer view to see topographic relief of oceans and land masses, with superimposed plate boundaries and information on boundary type, length, direction and rate of movement.
Provides an on-line textbook, with chapter 12 concerning plate tectonics, links to lecture plans from teachers at different universities around the globe, glossary of terms, and a plate tectonics literature reference list.
www.uky.edu /KGS/education/platetectonics.htm   (494 words)

  
 Earthquake   (Site not responding. Last check: 2007-10-26)
This condition is most often found at (and the resulting frequent occurrence of earthquakes is used to define) the boundaries of the tectonic plates into which the Earth's lithosphere is divided.
Events that occur at plate boundaries are called interplate earthquakes; the less frequent events that occur in the interior of the lithospheric plates are called
Most earthquakes are powered by the release of the stresses that accumulate over time, typically, at the boundaries of the plates that make up the Earth's lithosphere.
www.writen4u.com /public/Earthquake.asp   (1519 words)

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