the evidence that upheaval dome was formed by a meteorite impact comes from
Upheaval Dome The other theory is an eroded impact crater, like the much younger Meteor Crater near Winslow, Arizona. In the 1990s, a team of geologists and seismologists from NASA and the University of Nevada at Reno performed a detailed study that included seismic refraction and rock mapping. The results of this study support the meteorite theory.[1][3] In 2008, it was announced that shocked quartz was discovered.[4] This confirmed the meteor impact theory because the rocks were subjected to high pressures only possible in an impact or a nuclear explosion.[5]