The glaciers of the Patagonian snowfields are one of the quickest disappearing on the globe. As these icecaps recede, the ground underneath them begins to rise at considerably higher rates than projected. Researchers have determined that a disparity in plate boundaries that started appearing approximately 18 million years ago beneath presently ice sheet is presumably cruising the current dramatic sandstones rise shown in Patagonia, which encompasses distant and unpopulated regions where little seismographic analyses have previously been performed.