Top panel: logarithm of the kinetic to magnetic energy ratio for cold clumps, which are defined as “friends-of-friends” groups above a density threshold of 50 cm^-3, as a function of distance from the closest superbubble. Bottom panel: magnetic vs. kinetic energy of the clumps at the same times. The black symbols correspond to run mhd1r, the red symbols to run mhd1t. The snapshots are taken at times t = 2 Myr (left) and t = 6 Myr (right).