Geochemical and geological records provide key insights into Earth’s tectonic history, but in the case of mountains during the Proterozoic eon, records conflict with each other: Geochemical evidence says that the crust was thin and hot, which generally indicates that mountains would not have been able to form, but rocks left behind from that time period suggest that mountains were present.
Click here for original story, Extinct style of plate tectonics explains early Earth’s flat mountains
Source: Phys.org