In the Australian outback, the gold miners discovered a crater that could have been left by a meteorite. The crankcase is at least 100 million years old. The scientists studied the place that has caught the attention of science. They speculate that the meteorite could have been longer than two football fields. It fell on our planet at a time when dinosaurs lived on the Earth. The crater is located near the western Australian city of Ora Banda and was given a similar name. Its diameter is about five kilometers and its width is about 200 meters.
The first to study this soil depression were geologists of an Australian gold mining company. The experts found unusual rock cores. Jason Meyers, the company's chief geophysicist, said that all core samples were analyzed in a dedicated laboratory.
Soil samples were also taken from the site of the alleged accident, where broken cones were identified that is considered a clear sign of a meteorite fall. Such cones form only in one case: when high-speed, high-pressure shock waves from a large damaging object, such as a meteorite or a powerful nuclear explosion, shake an area.
Shock waves of the phenomenon are capable of destroying the rock and giving its fragments a conical shape. No nuclear tests have ever been carried out on that territory. And therefore the variant of a blast wave from a nuclear explosion disappears. All the remaining data indicate that a space object of a certain shape fell at this place.
Having made a map of the alleged fall, the scientists calculated the anomaly of the discovered crater. The meteorite fell to the left, from which a "wrinkled" surface in its middle was formed at the bottom of the crater. The fall of the meteorite of course also affected the surrounding landscape.
Exploring the topography of the site, the geologists mapped the gravity anomalies. They indicate how the gravitational field of the area differs from other parts of the Earth. Now the specialists from Curtin University in Perth have joined the study of the site. They will study the mineral composition of the crater soil.