The wreckage is quite similar to the CO DC9 at Den back in the 80's.(failed to deice)
That plane did a snap roll left shortly after ground effect and continued the roll until it ended up on its back. The left wingtip remaoined in constant ground contact through the roll leaving "C" pattern in the snow.
The nose of the aircraft eventually dropped through this roll and impacted about 30 deg nose down. It was survivable depending on where you sat (little fire on top of the snow)