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SubscriptionsGo to the Subscriptions Centre to manage your:My ProfileBut evidence of where a meteorite, or even a larger asteroid, would have struck the Earth can be so hard to find because it can actually be microscopic.Still, a team of Quebec geologists believe they have pieced together traces of a 500 kilometer crater in the Chibougamau area, 500 kilometres north of Montreal."It will be the biggest crater found on Earth," said Francine Robert. The geologist, who works under Serge Genest at Groupe Omegalpha, said craters of this size can be seen on other planets fake cartier love bracelet, so it's reasonable to think an asteroid of this size could have also hit the Earth.And, if so, the find would be more than an anomaly."It will be quite interesting for scientists because to know how these craters are really, because we can see them on the moon on Mars and on other planets, but nobody can put a foot on them and see what the rocks are really like," said Robert, who, along with Genest, has been working on this project with Normand Goulet, a professor of Earth and atmospheric science at the Universit du Qubec Montral (UQAM).The Earth erases its cratersUnlike barren celestial bodies like the moon and Mars, the Earth's crust is constantly changing due to shifting plate tectonics and erosion, making a crater that might have formed millions of years ago hard to find.Beyond that, Robert's crater would be 2.1 billion years old. She believes only a quarter of it is still exposed today.Still, she says there were some features in northern Quebec that first attracted her team's attention. For one, the Misstassini and Albanel lakes have an unusual crescent shape cartier love bracelet fake.Geologists believe they have found shatter cones near lake Albanel, Quebec. (Courtesy of Francine Robert)"These lakes have never been explained for their shape, for the arc shape that they have," Robert said.In 2003 and 2004, the team noticed something odd when visiting the formations around the town of Chibougamau.The area is supposed to be the result of a glacial deposit, but Robert says they found fragile glass shards in the rock that would not have survived under a glacier.About two or three years later, they found microscopic signs of impact in the Otish basin, near the Otish mountains, about 300 kilometers north east of Chibougamau bracelet cartier love occasion.Now, the team believes they have found shatter cones near Lake Albanel, rock formations which can only be created by the heavy impact of a meteorite, or a nuclear explosion.
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