E-Fields Parallel-to-B Effects on Plasma Shear Across Magnetic Flux Tubes

Necessary conditions are derived if very long plasma filaments (striations) are to remain magnetic flux tube aligned in distorted geomagnetic fields subsequent to nuclear burst. Special E fields are required, unrelated to resistive effects. It is not yet clear if such special E fields can appear in reality. If such special E fields cannot exist, long nuclear bursts striations in the magnetosphere will gradually shear across magnetic flux tubes, break up into several shorter segments, descend into the lower ionosphere, and be consumed faster there by molecular deionization.