#plate techtonics

[wisdom-and-such]

Before Pangea, it’s thought there was another supercontinent, Rodinia. In fact, there have been a cool dozen proposed. Evidence suggests that, left to its natural course, Earth will have it’s next supercontinent around 200 million years from now. (but, I’m pretty sure we’ll have taken full autonomy over our planets plate tectonics long before then!)

https://www.ranker.com/list/the-earth_s-known-supercontinents/analise.dubner

[kmlaney]

Ancient Earth

Earth looked very different long ago. Search for addresses across 750 million years of Earth's history.

geology fun time!

it lost my address sometime before the cretaceous period. It gets harder and harder to find familiar landforms the farther back you go (surprise surprise). I like this though!

[danbensen]

Because biogeography happens.

Why animals occur where they do remains, and always has been, one of the great questions of evolutionary biology. Two main competing ideas have been put forward as explanations for animal distribution. Maybe, just maybe, animals have spread around the world themselves, using temporary land-bridges, making sea crossings, jumping really far, floating hither and yon on bundles of reeds, hitch-hiking… that sort of thing.

Maybe, alternatively, they moved with the continents, a hypothesis of course contingent on the idea that the continents do indeed move across the surface of our planet.

Keep reading

[adeaddrop]

A giant crack emerged last week in northern Mexico and scientists are still working to determine what exactly caused it. The nearly 30-foot deep, 15-foot wide crevice in the earth extends more than a half-mile, Sky News reported. Some scientists believe the mysterious crack was the result of seismic activity in the area following a more »

The post Mysterious Giant Crack Appears in Northern Mexico — and Scientists Aren’t Quite Sure What Caused It appeared first on A Dead Drop.

[emperornorton47]

The Earth's outer layer is made up of a series of moving, interacting plates whose motion at the surface generates earthquakes, creates volcanoes and builds mountains. Geoscientists have long sought to understand the plates' fundamental properties and the mechanisms that cause them to move and drift, and the questions have become the subjects of lively debate. A new study is a significant step toward answering those questions.

[emperornorton47]

Break-up of the supercontinent Gondwana about 130 Million years ago could have led to a completely different shape of the African and South American continent with an ocean south of today’s Sahara desert, as geoscientists have shown through the use of sophisticated plate tectonic and three-dimensional numerical modelling.

[viajareviver]

Silfra, Parque Nacional, Islândia. Mergulho entre as placas tectônicas dos continentes europeu e americano. A magia de estar em dois lugares ao mesmo tempo, dentro da água, na terra do gelo, enquanto estava nevando. É nessas horas que agradeço pela vida!

[excusemabeaute]