An enormous three mile wide meteorite crater formed 100 MILLION years ago is discovered by gold miners in Western Australia’s Outback.
This crater is said to be the second largest in the world.
Gold miners discovered an enormous meteorite crater in Western Australia’s Outback and it was believed to be created some 100-million-years-ago.
The miners were said to be working close to the historic Goldfields mining town of Ora Banda, north-west of Kalgoorlie-Boulder in search of gold when they found unusual rocks.
Researchers were able to develop images of the impact site, with the use of an electromagnetic surveys named Ora Banda Crater, beneath the surface to deduce it spans three mile across.
Shoot cones were found from the earth that originated from the high pressure, high velocity shock waves created by a large impacting object – ‘ signs of a meteorite impact.’
Old plant substance was also found in the residues. Further research on the residues will give more details on the time that the meteorite hit.
Geologist and geophysicist Dr Jayson Meyers said: ‘The Ora Banda crater was a bit of a gift.’
‘The geologists who were working on it were drilling holes for gold, and they saw some very unusual rocks.’
‘They had it in the back of their mind that this really didn’t fit in to anything else they have seen and thought this could be a result of a meteorite impact.’
Dr Jayson Meyer told ABC that ‘based on its position and levels of erosion and some of the soil that is filling the sides, we estimate it could be around 100 million years old.’
Meyers is being aided by Curtin University to analyze the droplets of glass together with zircons and additional minerals solidified in the shoot cones to deduce a more accurate date of when the impact happened.
The researchers assumed that the crater is 100-million-years old, they explained that it likely occurred between 250 million and 40 million years ago.
Zircons and additional substances deep in the crater that were evaporated and re-crystallized may also shed light on when the event occurred, resource.ly reports.
‘The energy released when the asteroid impacted would have been more than the combined energy from every atomic test ever conducted,’ Meyers told resource.ly.
The Or Banda crater is, nevertheless, five times bigger than Australia’s popular Wolfe Creek Crater located more north in the state.
The meteorite 2,890 feet hole in the ground, which is noticeable on the surface.