Geologists in central Australia underground found two 3 km away from the surface of the diameter of more than 200 kilometers of mysterious natural landscape, the landscape of quartz sand with clusters of fine lines, in most of these fine lines are parallel to each other straight line, geologists believe that the landscape is likely to be formed a giant impact crater, And the structure of the quartz sand is evidence of the fracture.
Only after a high-speed meteorite impact does the quartz sand in the strata show a fracture structure containing parallel lines is a necessary premise for the above argument.