Island - Difference Between Islands and Continents

Difference Between Islands and Continents

There is a difference between islands and continents in terms of geology. Continents sit on continental lithosphere which is part of tectonic plates floating high on Earth's molten mantle. Oceanic crust is also part of tectonic plates, but it is denser than continental lithosphere, so it floats low on the mantle. Islands are either extensions of the oceanic crust (e.g. volcanic islands) or geologically they are part of some continent sitting on continental lithosphere (e.g. Greenland). This holds true for Australia, which sits on its own continental lithosphere and tectonic plate.

Read more about this topic:  Island

Famous quotes containing the words difference between, difference, islands and/or continents:

    The North will at least preserve your flesh for you; Northerners are pale for good and all. There’s very little difference between a dead Swede and a young man who’s had a bad night. But the Colonial is full of maggots the day after he gets off the boat.
    Louis-Ferdinand Céline (1894–1961)

    The North will at least preserve your flesh for you; Northerners are pale for good and all. There’s very little difference between a dead Swede and a young man who’s had a bad night. But the Colonial is full of maggots the day after he gets off the boat.
    Louis-Ferdinand Céline (1894–1961)

    The problem of the twentieth century is the problem of the color-line—the relation of the darker to the lighter races of men in Asia and Africa, in America and the islands of the sea. It was a phase of this problem that caused the Civil War.
    —W.E.B. (William Edward Burghardt)

    Nay, be a Columbus to whole new continents and worlds within you, opening new channels, not of trade, but of thought.
    Henry David Thoreau (1817–1862)