[2] Inside its peak ring there is a system of concentric extensional troughs (graben), which are rare surface features on Mercury.
The floor of Raditladi is partially covered by relatively light smooth plains, which are thought to be a product of the effusive volcanism.
[5] The central part of Raditladi is occupied by a large peak ring with a diameter of 125 km.
Visible on the floor of Raditladi inside the peak ring are concentric narrow troughs, formed by extension (pulling apart) of the surface.
[6] Extensional troughs on Mercury are quite rare, having been seen in only a few other locations:[3] Understanding how these troughs formed in the young Raditladi basin could provide an important indicator of processes that acted relatively recently in Mercury's geologic history.
Both types of structures form when magma from a deep reservoir intrudes into the overlying rocks along conical or cylindrical fractures.
The second hypothesis holds that the graben formed as a result of the floor uplift caused by the weight of the smooths plains outside the crater.