ELECTRONIC PROBE MICROANALYSIS OF OSTRACODA AND STUDY ON THEIR ORGANICS

Using EPMA.etc,the shell compositions of Cretaceous Ostracoda of 23 samples from 10 wells in Songliao basin were analysed.The data obtained reveal a distinct relation between values of magnesium/ manganese ratio and sedimentary facies belts.With the application of X-ray spectroscopy,scanning electron microscopy and pyrolysis chromatography,it has been found that there is a little organics including amino acid in the fillings of the cores of Ostracoda,which could be evolved to hydrocarbons.This result may provide new way for further study of microfossils and new data for the study of oil generation.