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The Vredefort impact structure is the largest verified impact structure on Earth. [1] The crater, which has since been eroded away, has been estimated at 170–300 kilometres (110–190 mi) across when it was formed.
About two billion years ago, an asteroid measuring at least 10 kilometers across hurtled toward Earth. The impact occurred southwest of what is now Johannesburg, South Africa, and temporarily made a 40-kilometer-deep and 100-kilometer-wide dent in the surface.
Based on the size of the Vredefort crater, the enormous impact scar left by the gargantuan space rock in what is now South Africa, researchers recently estimated that the epic impactor could...
Scientists have widely accepted, based on previous research, that the impact structure, known as the Vredefort crater, was formed by an object about 15 kilometers (approximately 9.3 miles) in diameter that was travelling at a velocity of 15 kilometers per second.
With an estimated original diameter of 300 kilometers, the Vredefort Impact Crater is the largest asteroid impact structure that still has visible evidence at Earth's surface. It is also the second-oldest impact structure with visible evidence at Earth's surface.
Vredefort Dome, the largest known meteorite impact structure on Earth. The Vredefort Dome is an area of raised land near the town of Vredefort in the Free State province of South Africa. The dome is at the centre of a crater formed by the impact of a very large meteorite about 2.023 billion years
South Africa's Vredefort Crater is Earth's largest impact crater. New Research clarifies the power of the impact and its catastrophic effects.
Geologists report finding pockets of impact melt and impact ejecta from Vredefort crater, the oldest and largest crater on Earth.
The Vredefort impact structure, located in South Africa and formed 2.02 Ga, is the largest confirmed remnant impact crater on Earth. The widely accepted impactor diameter and velocity to form this crater are 15 km and 15 km/s, respectively, which produce a crater diameter of 172 km.
In the abraded heart of South Africa's Vredefort impact crater lie striking green-black "impact" melt rocks that were thought to have been lost to time. Geologists say they've discovered...
About 2 billion years ago, an impactor hurtled toward Earth, crashing into the planet in an area near present-day Johannesburg, South Africa, and forming the Vredefort crater - the...
A more accurate simulation of the impact that made the Vredefort crater, Earth's largest, two billion years ago, shows the asteroid was bigger than believed.
The Vredefort impact event occurred 2019 ± 2 Ma (Moser, 1997) within the Kaapvaal Craton, resulting in an impact structure that had an original diameter of at least 170 km based on numerical modeling (Ivanov, 2005) and had structural effects to a diameter of ca. 300 km (Friese et al., 1995).
Researchers developed a more accurate simulation of the impact that formed Earth's largest crater -- Vredefort crater -- nearly two billion years ago. They found the impactor (most likely...
Well-documented deep levels of impact crater basement are extensively exposed in the Vredefort dome, the eroded remnant of the central uplift of the 2.02 Ga Vredefort impact structure (e.g., Grieve and Therriault 2000; Gibson and Reimold 2001 and literature therein).
Scientists have widely accepted, based on previous research, that the impact structure, known as the Vredefort crater, was formed by an object about 15 kilometers (approximately 9.3 miles) in diameter that was travelling at a velocity of 15 kilometers per second.
Scientists have widely accepted, based on previous research, that the impact structure, known as the Vredefort crater, was formed by an object about 15 kilometers (approximately 9.3 miles)...
This latest analysis suggests the object responsible for the crater was closer to 20 to 25 kilometer across, traveling at a velocity of 15 to 20 kilometers per second in the moments before impact.
With estimated original diameters between 200 km and 250 km, Vredefort (South Africa), Sudbury (Canada) and Chicxulub (Mexico), known as ‘the big three’ 21, are the largest impact structures...
A study of the Vredefort crater in South Africa, one of the largest and oldest known impact craters on Earth, reveals that here as on Mars, magnetic field intensities above the giant crater are...