TRACE ELEMENT COMBINATIONS IN UPPER CRETACEOUS DINOSAUR EGG FOSSILS FROM XIXIA BASIN AND DISCUSSION ON PALEOCLIMATE
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Abstract:
Neutron activation analysis of respectively samplings of dinosaur egg fossils and wall rocks from the Upper Cretaceous in Xixia, Henan Province demonstrates that elementary combinations in the dinosaur egg fossils are featured by obvious abnormal high contents of both iridium and strontium,which are inferred to have caused fabric and pathological changes of those eggs. Thereby the dinosaur eggs couldn't be hatched, and probably resulted in the high concentration of their fossils. Moreover,the analysis of elementary combinations as well as geological data indicates that the climate during the Late Cretaceous in this area might have been semiarid to arid.
