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A Study on the Macro Mineral Compositions of the Dinosaur Egg Fossils in the Late Cretaceous Collected from Xixia Basin，Henan Province

LI Yan-fang1, CAI Hou-an2, LIANG Han-dong1,3, ZHANG Jun1，MEI Ya-qing1， ZHANG Hong-gang1   

  1. 1.School of Resource and Safety Engineering,China University of Mining and Technology, Beijing 100083,China;2.School of Energy Resources,China University of Geosciences,Beijing 100083,China;3.State Key Laboratory of Coal Resources and Safety Mining,Beijing 100083,China
  • Received:2005-04-05 Revised:1900-01-01 Online:2006-03-26 Published:2006-03-26
  • Contact: LI Yan-fang

Abstract: The dinosaur egg fossil group found in Xixia Basin, Henan Province occurs in the typical red clay strata in the Late Cretaceous. Therefore, the fossil itself probably recorded the global environment disaster information at that time. We have observed the appearance and surface features of the eggs through microscope. With the help of XRD and XRF methods it is found that the material compositions of the egg’s interior are extremely same as the clay of the egg’s exterior, therefore, we concluded that the material in the interior of the dinosaur eggs found in the Xixia Basin is derived from that of their exterior. We found the cracks on the surface of the dinosaur eggs by SEM. We also found particles of goethite, oxide of copper and zinc, barium sulfate and so on within the eggs, and gave an appropriate explanation on their formation and source. Based on the experimental results the environment disaster mechanism during the K/E transition period has been discussed.

Key words: dinosaur egg fossil, clay, goethite, Red beds, Xixia Basin

CLC Number: 

  • Q915.86
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