Difference between revisions of "Constructive Plate Margin"
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===About Constructive Plate Margins=== | ===About Constructive Plate Margins=== | ||
| − | At constructive plate margins two plates are pushing away from each other and therefore opening a large gap between then. [[Magma]] then rises from deep in the earth in the [[mantle]] to fill this gap and new [[crust]] is formed. [[Volcano]]s are often found at constructive plate margins as the | + | At constructive plate margins two plates are pushing away from each other and therefore opening a large gap between then. [[Magma]] then rises from deep in the earth in the [[mantle]] to fill this gap and new [[crust]] is formed. [[Volcano]]s are often found at constructive plate margins as the [[Convection Currents|convection currents]] become disrupted - allowing [[magma]] to rise through the gap. This process often creates [[Volcanic Eruption|eruptions]]. A key example of a constructive plate margin is the [[mid-Atlantic ridge]] where the new crust that has formed is visible in the form of a long ridge of land under the [[Atlantic Ocean]]. |
Latest revision as of 14:43, 20 September 2020
Key Stage 4
Meaning
A constructive plate margin is the location where two Tectonic Plates are moving away from one another.
About Constructive Plate Margins
At constructive plate margins two plates are pushing away from each other and therefore opening a large gap between then. Magma then rises from deep in the earth in the mantle to fill this gap and new crust is formed. Volcanos are often found at constructive plate margins as the convection currents become disrupted - allowing magma to rise through the gap. This process often creates eruptions. A key example of a constructive plate margin is the mid-Atlantic ridge where the new crust that has formed is visible in the form of a long ridge of land under the Atlantic Ocean.