| 西峡晚白垩世恐龙蛋化石宏观矿物组成研究及意义 |
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| 引用本文： | 李艳芳,蔡厚安,梁汉东,张俊,梅亚青,张宏刚. 西峡晚白垩世恐龙蛋化石宏观矿物组成研究及意义[J]. 吉林大学学报(地球科学版), 2006, 36(2): 158-163,168 |
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| 作者姓名： | 李艳芳 蔡厚安 梁汉东 张俊 梅亚青 张宏刚 |
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| 作者单位： | 中国矿业大学,资源与安全工程学院,北京,100083;中国地质大学,能源学院,北京,100083;中国矿业大学,资源与安全工程学院,北京,100083;煤炭资源与安全开采国家重点实验室,北京,100083 |
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| 基金项目： | 国家自然科学基金项目(40232025,40072055,40572020)，高等学校博士学科点专项科研基金项目(20040290005) |
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| 摘 要： | 发现于河南省西峡盆地的恐龙蛋化石群产于白垩纪末期的典型红色粘土地层,因此该化石本身可能包含着当时地史时期全球或区域环境灾变记录。利用显微镜观察恐龙蛋的表观特征;利用XRD和XRF研究发现蛋内外粘土的成分极其相似,进而推断西峡恐龙蛋化石蛋腔内的物质源于蛋腔外部;通过扫描电镜/能谱分析发现蛋壳表面存在裂纹现象,同时在蛋体内发现了针铁矿、铜锌氧化物、硫酸钡、氧化硅等颗粒,并对其形成和来源给出了适当的解释。并基于实验结果对K/E转折时期的环境灾变机理进行了初步探讨。
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| 关 键 词： | 恐龙蛋化石 粘土 针铁矿 界线红层 西峡 |
| 文章编号： | 1671-5888（2006）02-0158-06 |
| 收稿时间： | 2005-04-05 |
| 修稿时间： | 2005-04-05 |
A Study on the Macro Mineral Compositions of the Dinosaur Egg Fossils in the Late Cretaceous Collected from Xixia Basin, Henan Province |
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| LI Yan-fang,CAI Hou-an,LIANG Han-dong,ZHANG Jun,MEI Ya-qing,ZHANG Hong-gang. A Study on the Macro Mineral Compositions of the Dinosaur Egg Fossils in the Late Cretaceous Collected from Xixia Basin, Henan Province[J]. Journal of Jilin Unviersity:Earth Science Edition, 2006, 36(2): 158-163,168 |
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| Authors: | LI Yan-fang CAI Hou-an LIANG Han-dong ZHANG Jun MEI Ya-qing ZHANG Hong-gang |
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| Affiliation: | 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 |
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| 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. |
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| Keywords: | dinosaur egg fossil clay goethite Red beds Xixia Basin |
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