uranium series
5.URANIUM-SERIES DATING OF FOSSIL BONES FROM PEKING MAN CAVE-MIXING MODEL
6.THE STUDY ON URANIUM-SERIES DATING OF FOSSIL BONES AND AN ABSOLUTE AGE SEQUENCE FOR THE MAIN PALEOLITHIC SITES OF NORTH CHINA
7.This article analyzes the mineralization mechanism of the uranium ore, constructs a series of spectra indexes including the ferric oxide index, the ferrous oxide index, the oxidation index, clay mineral index, brightness index, the green index and the humidity index, and draws the distribution and scope of the oxidation belt, deoxidation belt, the supplies and partial drainage of ground water in the research area, thus selects the advantageous area of uranium mineralization.
9.The accuracy of determining the uranium content based on the "β-γ anticoincidence technique"can be improved by reducing the β-contribution of series of Ra and Th in the determined chennal U, which makes the β-contribution of series of uranium be increased relatively and makes the interference of Ra and Th upon uranium be limited simultaneously .
