Complex sentence: The anomalous morphometry of such an impact crater might be explained by an impact onto glacial ice, which may have resulted in the dissipation of much of the impact energy into the ice, resulting in the low depth to diameter ratio of the crater.
Split into simpler sentences: The anomalous morphometry of such an impact crater might be explained by an impact onto glacial ice. This type of impact may have resulted in the dissipation of much of the impact energy into the ice, resulting in the low depth to diameter ratio of the crater.