<div>The possibility of the formation of a triplet six-armed spiral structure
of the Galaxy as a result of the impact on the stellar population of the
Milky Way disk of concentrated ionized explosive supernova ejections
(with different velocity extrema) from the central region is considered.
A mechanism is proposed for concentration and acceleration by the
magnetic field of the Galaxy R&lt;3-5 kpc of ionized gas and dust
emissions, with their further canalization along the magnetic axis of
the dipole of a close binary system of supermassive objects at
R&lt;0.1 kpc, rotating with acceleration. The hypothesis is
confirmed by the periodicity of pulses of electrically conductive cosmic
dust entering the Earth, as well as by the presence of anisotropies of
ultrahigh-energy cosmic rays &gt;1014 eV from the calculated
directions. Thus, the triplet view of the boundaries of the
geochronological scale is substantiated as the consequences of
different-scale effects of heterogeneities in the triplet structure of
the Spiral arms.</div>