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Top competitors on query "how does a volcano form at a divergent plate boundary"
http://pubs.usgs.gov/gip/volc/tectonics.html Competition: low
The stippled areas indicate a part of a continent, exclusive of that along a plate boundary, which is undergoing active extensional, compressional, or strike-slip faulting
How do Volcanoes Work?
http://www.angelfire.com/sc3/popocatepetl/page2.html Competition: low
We all know that Volcanoes can be extremely devastating, but how and where do they form, and why do they explode? Most volcanoes that form on large bodies of land occur where two tectonic plates come together, and one of them is forced to subduct below the other one into the hot mantle. Lava, pyroclasts, and gases (primarily water vapor, carbon dioxide, and sulfur dioxide) comprise the bulk of what comes out of volcanoes during their eruptions
Why does subduction occur at an oceanic-oceanic plate boundary, but not at a continental-continental boundary? - Yahoo! Answers
http://answers.yahoo.com/question/index?qid=20080312125831AAjLghZ Competition: low
Member since: March 03, 2007 Total points: 28,595 (Level 7) Add Contact Block Best Answer - Chosen by Voters The plate that is subducted in an oceanic-oceanic convergent boundary is the older one
Earth Floor: Plate Tectonics
http://www.cotf.edu/ete/modules/msese/earthsysflr/plates1.html Competition: low
The theory states that Earth's outermost layer, the lithosphere, is broken into 7 large, rigid pieces called plates: the African, North American, South American, Eurasian, Australian, Antarctic, and Pacific plates. The plates are all moving in different directions and at different speeds (from 2 cm to 10 cm per year--about the speed at which your fingernails grow) in relationship to each other
http://www.wordiq.com/definition/Divergent_boundary Competition: low
This supplies the area with copious amounts of heat and pressure that melts rock from the asthenosphere (or upper mantle) that then travels to the rift area forming large flood basalt flows. Each eruption occurs in only a part of the plate boundary at any one time, but when it does occur, it fills in the opening gap as the two opposing plates move away from each other
http://www.platetectonics.com/book/page_10.asp Competition: low
Helen How Plates Move Plate Boundaries A Changing Earth Pangaea - All Lands Mid-Ocean Ridges An Ocean is Born The Birth of an Island Mountain Ranges Subduction Zones Island Arcs The Ring of Fire Faults Earthquakes Hot Spots Mantle Plumes Origin of Life Theories Global Climate Other Worlds Welcome to Your World Birth of an Island Sometimes the Mid-Ocean Ridge shows itself above the surface of the sea
BBC Earth - Plate boundaries cause earthquakes and volcanoes
http://www.bbc.co.uk/science/earth/surface_and_interior/plate_boundary Competition: low
Obduction occurs when the continental plate is pushed under the oceanic plate, but this is unusual as the relative densities of the tectonic plates favours subduction of the oceanic plate. As the plates move across the Earth's surface, they interact with one another at plate boundaries, which are places where earthquakes and volcanoes are common
How do volcanoes form?: Information from Answers.com
http://www.answers.com/topic/how-do-volcanoes-form Competition: low
Volcanoes that were formed in this way are normally found along the edges of continents, such as in the Andes Mountains of South America, or rising from the ocean floor, such as the islands of Japan. Our current drilling techniques can only penetrate approximately 6 miles (10 meters) into the crust, while the magma of the Hawaiian volcano Kilauea originates at depths of at least tens of miles (or at least 20 kilometers)
Earth Floor: Plate Tectonics
http://www.cotf.edu/ete/modules/msese/earthsysflr/plates3.html Competition: low
Where a divergent boundary crosses the ocean floor, the rift valley is much narrower, only a kilometer or less across, and it runs along the top of a midoceanic ridge. As shown in the drawing above, when Earth's brittle surface layer (the lithosphere) is pulled apart, it typically breaks along parallel faults that tilt slightly outward from each other
http://uk.answers.yahoo.com/question/index?qid=20070523105959AAwOGqA Competition: low
The volcanoes are created when the subducting plate begins to partially melt, the melt begins to rise and starts to melt the crust creating a path towards the surface. This path travels up through the crust and begins to pool beneath the volcanoes, and eruptions occur when the pressure of the magma and gases become to great and the mountain can no longer hold them in
What is the result of divergent plate boundary activity on ocean and land? - Yahoo! Answers
http://answers.yahoo.com/question/index?qid=20090104160344AAHlQqn Competition: low
Geologists believe that, if spreading continues, the three plates that meet at the edge of the present-day African continent will separate completely, allowing the Indian Ocean to flood the area and making the easternmost corner of Africa (the Horn of Africa) a large island. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest
http://pubs.usgs.gov/gip/dynamic/understanding.html Competition: low
Geologists believe that, if spreading continues, the three plates that meet at the edge of the present-day African continent will separate completely, allowing the Indian Ocean to flood the area and making the easternmost corner of Africa (the Horn of Africa) a large island. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest
http://www2.nature.nps.gov/geology/usgsnps/pltec/diverge.html Competition: low
Little by little, as each batch of molten rock erupts at the mid-ocean ridge, the newly created oceanic plate moves away from the ridge where it was created
Volcano - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Volcano Competition: low
A large number of minor and trace gases are also found in volcanic emissions, for example hydrogen, carbon monoxide, halocarbons, organic compounds, and volatile metal chlorides. Most of the hydrogen chloride (HCl) and hydrogen fluoride (HF) are dissolved in water droplets in the eruption cloud and quickly fall to the ground as acid rain
http://volcano.oregonstate.edu/can-volcanoes-form-just-anywhere-why-do-they-form-where-they-do Competition: low
As the plate gets pushed further and further it starts to give off its volatiles (mostly water), and these migrate upwards into the mantle just under the overriding plate. People argue about whether the magma forcing its way to the surface causes the plates to move apart or whether the plates move apart and the magma just reacts to that and fills in the space
What kind of landforms are formed at divergent plate boundaries
http://wiki.answers.com/Q/What_kind_of_landforms_are_formed_at_divergent_plate_boundaries Competition: low
What landforms form by divergent boundaries? Rift Valley and Ridges What landforms can divergent boundaries form? mid ocean ridges What are the landforms at divergent ocean plate boundaries? mid ocean ridges What does divergent plates boundary form? volcanic island arcsDivergent plate boundaries form anywhere two plates are moving away from each ot How are volcanoes formed at divergent plate boundaries? Beneath the Earth's crust is a lot of magma. Last edit by ShannonMacca Answer History Related Answers: What kind of landforms are formed at divergent plate boundaries? Mid Ocean Ridges and Rift Valleys
Plate Tectonics, Volcanoes and Earthquakes-Divergent Boundaries
http://www.plate-tectonics.org/plate-tectonics/divergent-boundaries.html Competition: low
Examples of divergent boundaries of tectonic plates The Mid-Atlantic Ridge is a good example of a divergent boundary created by tectonic plates moving apart
How do volcanoes form at divergent boundaries
http://wiki.answers.com/Q/How_do_volcanoes_form_at_divergent_boundaries Competition: low
Thus as the plates pull apart, it leaves a gap through Why do volcanoes form at convergent boundaries instead of divergent boundaries? Volcanoes form at both convergent and divergent boundaries
The stippled areas indicate a part of a continent, exclusive of that along a plate boundary, which is undergoing active extensional, compressional, or strike-slip faulting
How do Volcanoes Work?
We all know that Volcanoes can be extremely devastating, but how and where do they form, and why do they explode? Most volcanoes that form on large bodies of land occur where two tectonic plates come together, and one of them is forced to subduct below the other one into the hot mantle. Lava, pyroclasts, and gases (primarily water vapor, carbon dioxide, and sulfur dioxide) comprise the bulk of what comes out of volcanoes during their eruptions
Why does subduction occur at an oceanic-oceanic plate boundary, but not at a continental-continental boundary? - Yahoo! Answers
Member since: March 03, 2007 Total points: 28,595 (Level 7) Add Contact Block Best Answer - Chosen by Voters The plate that is subducted in an oceanic-oceanic convergent boundary is the older one
Earth Floor: Plate Tectonics
The theory states that Earth's outermost layer, the lithosphere, is broken into 7 large, rigid pieces called plates: the African, North American, South American, Eurasian, Australian, Antarctic, and Pacific plates. The plates are all moving in different directions and at different speeds (from 2 cm to 10 cm per year--about the speed at which your fingernails grow) in relationship to each other
This supplies the area with copious amounts of heat and pressure that melts rock from the asthenosphere (or upper mantle) that then travels to the rift area forming large flood basalt flows. Each eruption occurs in only a part of the plate boundary at any one time, but when it does occur, it fills in the opening gap as the two opposing plates move away from each other
Helen How Plates Move Plate Boundaries A Changing Earth Pangaea - All Lands Mid-Ocean Ridges An Ocean is Born The Birth of an Island Mountain Ranges Subduction Zones Island Arcs The Ring of Fire Faults Earthquakes Hot Spots Mantle Plumes Origin of Life Theories Global Climate Other Worlds Welcome to Your World Birth of an Island Sometimes the Mid-Ocean Ridge shows itself above the surface of the sea
BBC Earth - Plate boundaries cause earthquakes and volcanoes
Obduction occurs when the continental plate is pushed under the oceanic plate, but this is unusual as the relative densities of the tectonic plates favours subduction of the oceanic plate. As the plates move across the Earth's surface, they interact with one another at plate boundaries, which are places where earthquakes and volcanoes are common
How do volcanoes form?: Information from Answers.com
Volcanoes that were formed in this way are normally found along the edges of continents, such as in the Andes Mountains of South America, or rising from the ocean floor, such as the islands of Japan. Our current drilling techniques can only penetrate approximately 6 miles (10 meters) into the crust, while the magma of the Hawaiian volcano Kilauea originates at depths of at least tens of miles (or at least 20 kilometers)
Earth Floor: Plate Tectonics
Where a divergent boundary crosses the ocean floor, the rift valley is much narrower, only a kilometer or less across, and it runs along the top of a midoceanic ridge. As shown in the drawing above, when Earth's brittle surface layer (the lithosphere) is pulled apart, it typically breaks along parallel faults that tilt slightly outward from each other
The volcanoes are created when the subducting plate begins to partially melt, the melt begins to rise and starts to melt the crust creating a path towards the surface. This path travels up through the crust and begins to pool beneath the volcanoes, and eruptions occur when the pressure of the magma and gases become to great and the mountain can no longer hold them in
What is the result of divergent plate boundary activity on ocean and land? - Yahoo! Answers
Geologists believe that, if spreading continues, the three plates that meet at the edge of the present-day African continent will separate completely, allowing the Indian Ocean to flood the area and making the easternmost corner of Africa (the Horn of Africa) a large island. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest
Geologists believe that, if spreading continues, the three plates that meet at the edge of the present-day African continent will separate completely, allowing the Indian Ocean to flood the area and making the easternmost corner of Africa (the Horn of Africa) a large island. Picture two giant conveyor belts, facing each other but slowly moving in opposite directions as they transport newly formed oceanic crust away from the ridge crest
Little by little, as each batch of molten rock erupts at the mid-ocean ridge, the newly created oceanic plate moves away from the ridge where it was created
Volcano - Wikipedia, the free encyclopedia
A large number of minor and trace gases are also found in volcanic emissions, for example hydrogen, carbon monoxide, halocarbons, organic compounds, and volatile metal chlorides. Most of the hydrogen chloride (HCl) and hydrogen fluoride (HF) are dissolved in water droplets in the eruption cloud and quickly fall to the ground as acid rain
As the plate gets pushed further and further it starts to give off its volatiles (mostly water), and these migrate upwards into the mantle just under the overriding plate. People argue about whether the magma forcing its way to the surface causes the plates to move apart or whether the plates move apart and the magma just reacts to that and fills in the space
What kind of landforms are formed at divergent plate boundaries
What landforms form by divergent boundaries? Rift Valley and Ridges What landforms can divergent boundaries form? mid ocean ridges What are the landforms at divergent ocean plate boundaries? mid ocean ridges What does divergent plates boundary form? volcanic island arcsDivergent plate boundaries form anywhere two plates are moving away from each ot How are volcanoes formed at divergent plate boundaries? Beneath the Earth's crust is a lot of magma. Last edit by ShannonMacca Answer History Related Answers: What kind of landforms are formed at divergent plate boundaries? Mid Ocean Ridges and Rift Valleys
Plate Tectonics, Volcanoes and Earthquakes-Divergent Boundaries
Examples of divergent boundaries of tectonic plates The Mid-Atlantic Ridge is a good example of a divergent boundary created by tectonic plates moving apart
How do volcanoes form at divergent boundaries
Thus as the plates pull apart, it leaves a gap through Why do volcanoes form at convergent boundaries instead of divergent boundaries? Volcanoes form at both convergent and divergent boundaries
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