Parowan Times | 1932-03-11 | Page 6 | Here's Another Stab at Age of "Mother Earth"

leres another stab at al age of mother earth one of the most remarkable als overtes of recent years is the radio etive metal uranium uran luin which bradu illy changes into lea lead says london rit aits the rate at which this recess process Is carried out Is well known ind it is invariable ey taking rocks which contain both uranium and lead ind finding the proportion of each metal novy nov existing in them thi the length of 0 time necessary to bring about the present state of affairs Is sot ot difficult to calculate such a calculation shows that the bartl must have been solid not far short of two thousand million years ago the paths of the earth around the sun and the moon around the earth are not what they were originally nally science can reconstruct them and discover the time needed deeded to div them their present shapes all of these methods show that tb alu age of theearta the earth must be more than one thousand million years and less than four thousand million years we shall then not be far wrong wron if 11 we fix the earths birthday at about abou two thousand million years a ago 0 o