Pleochroic halos also referred to as radiohalos are microscopic spherical shells of discolouration pleochroism within minerals such as biotite that occur in granite and other igneous rocks.
Polonium halos in granite.
Because the polonium has a very rapid existence and very short half life and the fact that these polonium halos are preserved inside the granite indicates that formation of granite was very quick and not over millions of years as the evolutionists believe.
The shells are zones of radiation damage caused by the inclusion of minute radioactive crystals within the host crystal structure.
Coal formation such as polonium halos in coalified wood and the astonishingly pure giant coal beds of the powder river basin.
Robert gentry s work showed that the earth s granite was never in a molten condition because polonium halos survive only in solid rock and the half life of polonium is much too short to survive a multimillion year cooling time.
Precambrian granites his primordial crustal rock must have formed in less than three minutes and that polonium haloes are therefore proof of the young earth creation model according to.
Isolated polonium halos are rare or absent figure 2.
He suggested that the po halos which are found in the minerals biotite and fluorite in granites and associated pegmatites prove that the host rocks were created not from magma but almost instantaneously during day 1 of the genesis week.
Polonium halos are produced by the radioactive decay of polonium inside granite.
The radioactive elements emit particles of varying energies.
February 3 1997 for more information.
Uranium in magma is incorporated into crystals of zircon or uraninite as the magma cools and solidifies.
Granite from the early origins of the earth.
An exceedingly large number of polonium halos are embedded in granites around the world.
Uranium halos are commonly found throughout a granite mass.
Gentry claims that halos such as the one in figure 2 were caused by traces of the element polonium in primordial granite i e.
His results seem to indicate that the earth was created instantaneously in a cool condition.