Spectral time slices of three indivdual emission events. Left panels: Ca II H line core; right panels: Fe I 396.93 nm line and Fe II line. The horizontal axis is scaled in Doppler velocity. The inserted text provides the time of the maximum Fe II emission, (in min, counted from the beginning of the sequence), the corresponding scan step, and the slit position (in arcsec). The two bottom rows show the same emission events as Fig. 6.