Discover Where Your City or Town Was Located On Earth 750 Million Years Ago
Have you ever wondered what the area around your hometown was like during the Cretaceous period, when the Tyrannosaurus rex roamed? How about before then, when Earth had just one supercontinent?
Now you can find out.
If you type in the name of your hometown or current city, the map can pinpoint its location on the planet in a given era, going back 750 million year(that's about 150 million years before multicellular life emerged).
New York City, for example, formed part of the middle of Rodinia 750 million years ago.
The planet's continent are constantly moving because of these 15 to 20 plates, which in turn lie on Earth's mantle, the layer above the core. Heat from within the core causes these plates to move, sometimes towards each other and sometimes away. As a result, the continents of today look very different than they did a few hundred million years ago.
Not all places on our current-day planet show up far into the the past in the map, since the geological formations on which they rest may not have developed or emerged yet. For instance, Seattle, Washington, partially rets on the modern-day Juan de Fuca tectonic plate, which originated from formations that emerged around 250 million years ago. Thus, it only becomes trackable starting around the 240-million-year mark. At that point, Seattle was part of Pangea. (It's the red dot in below).
The approximate location of what is now Seattle, Washington, 240 million years ago
New York City, on the other hand, was located in the middle of Rodinia 750 million years ago.
Comments
Post a Comment