Oct 30, 2012

Posted in Science | 6 Comments

Five Massive Earth Impacts

Five Massive Earth Impacts

 

Asteroids are a class of small Solar System bodies in orbit around the Sun.

There are massive asteroids that hitten our planet leaving us massive craters, some of them can be seen from space.

Here are five massive earth impacts!

1. Wolfe Creek Crater

Location: Australia Size: 1.2km (0.7 miles) Age: 300,000 years While the crater was long-known to the Aboriginal people, Europeans didn’t discover it until 1947, while conducting an aerial survey.

2. Pingualuit Crater

Location: Canada Size: 3.4km (2.1 miles) Age: 1.4 million years As a lake with no connection to other bodies of water, Pingualuit Crater has preserved sediments from before the Pleistocene ice age, capturing a wealth of geological history.

3. Chicxulub Crater

Location: Mexico Size: 200km (124 miles) Age: 65 million years Scientists believe this massive crater in the Yucatan Peninsula is probably from the comet or asteroid impact that killed the dinosaurs.

4. Manicouagan Crater

Location: Canada Size: 70km (43.5 miles) Age: 206-214 million years Today, the huge crater – two semicircular lakes with a protruding land in the middle – is one of the more striking natural formations visible from space.

5. Barringer Crater

Location: USA

Size: 1.2km (0.7 miles)

Age: 49,000 years

Geological research suggests the crater came from a 45m (148ft) nickel-iron asteroid, which mostly vaporised on impact.

6. Aorounga Crater

Location: Chad

Size: 13km (8 miles)

Age: 350 million years

Additional circular features near the larger crater indicate a multiple impact event.

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  2. Viktor Karlsohn says:

    You might want to include or make note of the Bedout Impact. It is officially unconfirmed, but is associated with the Siberian Traps, as is the Chicxulub Impact asociated with the Deccan Traps.
    The largest official impact is the Vredefort Impact, estimated at 160 km in diameter. However, there is the unconfirmed impact at Wilkes Land, in Antarctica, estimated to be in the range of 300 km in diameter.

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  1. Asteroid Impacts, A Risk For Humanity - winarticles.net - [...] Earth’s history, most famously 65.5 million years ago, when an asteroid over 10km wide hit Chicxulub in Mexico, an event …

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