homehome Home chatchat Notifications


Massive meteorite crater found in Canada, after oldest and biggest one was found in Greenland

Researchers have found evidence that the crater in case was formed when the ground was slammed by a massive meteorite, millions of years ago. Prince Albert crater Measuring about 25 kilometers across, Prince Albert crater was named after the peninsula in which it was discovered. Researchers never were really sure when it was formed, the […]

Mihai Andrei
August 9, 2012 @ 10:18 am

share Share

Researchers have found evidence that the crater in case was formed when the ground was slammed by a massive meteorite, millions of years ago.

Prince Albert crater

Prince Albert crater

Measuring about 25 kilometers across, Prince Albert crater was named after the peninsula in which it was discovered. Researchers never were really sure when it was formed, the likely period being between 130 million and 350 million years old, according to geologists from the University of Saskatchewan.

A team spotted this newly identified crater totally random, while surveying the area for mineral and energy resources. Initially, they were intrigued by steeply tilted strata visible in river gorges, as well as other strange features of the area.

“Unless you recognized the telltale clues, you wouldn’t know what you were looking at,” researcher Brian Pratt explained in the statement. “You might see a bunch of broken rocks and wonder how they got there, but we found abundant shatter cones.”

Shatter cones are extremely rare geological features which form only in the bedrock beneath meteorite impacts or nuclear explosions. Shatter cones have a distinctively conical shape that radiates from the top (apex) of the cones repeating cone-on-cone in large and small scales in the same sample.

Analyzing shatter cones

“Impact craters like this give us clues into how the Earth’s crust is recycled and the speed of erosion, and may be implicated in episodes of widespread extinction of animals in the geological past,” Pratt said. “It’s an exciting discovery.”

The biggest and oldest crater

At the moment, there are some 180 known impact craters on Earth – geologists would have found many more by now, if it hand’t been for the continuous action of plate shifting, erosion, crust recycling and volcanic activity. Earlier this year, researchers from Greenland reported the finding of what may be the oldest and largest meteorite crater ever found on Earth.

Location of meteorite cratere in Greenland

Researchers estimate the crater is some 3 billion years old, and measures 100 kilometers from one side to another; however, given the extremely old age, it probably measured over 500 kilometers in its ‘glory days’. The team believes it was caused by a meteorite 30 kilometers wide, which, if would hit Earth today, would pretty much wipe out all advanced life on our planet.

share Share

NASA’s Curiosity Rover Spotted Driving Across Mars From Space for the First Time

An orbiter captured Curiosity mid-drive on the Red Planet.

Japan Plans to Beam Solar Power from Space to Earth

The Sun never sets in space — and Japan has found a way to harness this unlimited energy.

Giant Planet Was Just Caught Falling Into Its Star and It Changes What We Thought About Planetary Death

A rare cosmic crime reveals a planet’s slow-motion death spiral into its star.

This Planet Is So Close to Its Star It Is Literally Falling Apart, Leaving a Comet-like Tail of Dust in Space

This dying planet sheds a “Mount Everest” of rock each day.

We Could One Day Power a Galactic Civilization with Spinning Black Holes

Could future civilizations plug into the spin of space-time itself?

Elon Musk could soon sell missile defense to the Pentagon like a Netflix subscription

In January, President Donald Trump signed an executive order declaring missile attacks the gravest threat to America. It was the official greenlight for one of the most ambitious military undertakings in recent history: the so-called “Golden Dome.” Now, just months later, Elon Musk’s SpaceX and two of its tech allies—Palantir and Anduril—have emerged as leading […]

Have scientists really found signs of alien life on K2-18b?

Extraordinary claims require extraordinary evidence. We're not quite there.

How a suitcase-sized NASA device could map shrinking aquifers from space

Next‑gen gravity maps could help track groundwater, ice loss, and magma.

Why Geological Maps Are the Best Investment You’ve Never Heard Of

Investments in geological mapping paid off big time for Americans.

The Mediterranean Sea Was Once Dry—Then a Gigantic Flood Changed Everything

It's probably the largest flood in our planet's history.