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Fig. 2 Autoradiograph of Slurry Fallout Particle Trace and
Its Chloride Reaction Area Showing the Radioactivity to be
Concentrated in the Centrally Located Insoluble Solids Portion, The black central smear is the autoradiograph masking the solids. Patterns on the reagent film are caused by
severe tropical sun reaction on the photosensitive film. Circular spots are NaCl reactions from naturally occurring airborne sea salt particles,
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