| 河南西峡上白垩统恐龙蛋化石微量元素组成及古气候探讨 |
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| 引用本文： | 张玉光,裴静.河南西峡上白垩统恐龙蛋化石微量元素组成及古气候探讨[J].古生物学报,2004,43(2):297-302. |
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| 作者姓名： | 张玉光 裴静 |
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| 作者单位： | 中国科学院高能物理研究所,北京,100039;中国科学院古脊椎动物与古人类研究所,北京,100044;中国科学院高能物理研究所,北京,100039 |
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| 基金项目： | 中国科学院重要方向性项目 (KJCX2 N10 )，北京市科研院萌芽计划 (MY/2 0 0 1 19)项目成果 |
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| 摘 要： | 对河南西峡晚白垩世地层中恐龙蛋、围岩分别采样进行中子活化分析 (NAA) ,发现恐龙蛋化石的元素组合特征表现出铱 (Ir)和锶 (Sr)的明显含量异常 ,推理分析得出高异常铱、锶元素共同作用导致晚白垩世恐龙蛋的结构出现异常和病变 ,从而未能孵化出壳 ,这也可能是河南西峡恐龙蛋化石大量“富集”的原因。此外 ,元素的组合规律初步表明河南西峡晚白垩世时的气候应具有干旱、半干旱的特征。
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| 关 键 词： | 恐龙蛋 微量元素异常 古气候 埋藏学 河南西峡 |
| 修稿时间： | 2003年10月10 |
TRACE ELEMENT COMBINATIONS IN UPPER CRETACEOUS DINOSAUR EGG FOSSILS FROM XIXIA BASIN AND DISCUSSION ON PALEOCLIMATE |
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| ZHANG Yu Guang, and PEI Jing Beijing Natural History Museum,Beijing Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing Institute of high energy physics,Chinese Academy of Sciences,Beijing.TRACE ELEMENT COMBINATIONS IN UPPER CRETACEOUS DINOSAUR EGG FOSSILS FROM XIXIA BASIN AND DISCUSSION ON PALEOCLIMATE[J].Acta Palaeontologica Sinica,2004,43(2):297-302. |
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| Authors: | ZHANG Yu Guang and PEI Jing Beijing Natural History Museum Beijing Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing Institute of high energy physics Chinese Academy of Sciences Beijing |
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| Institution: | ZHANG Yu Guang 1,2) and PEI Jing 3) 1) Beijing Natural History Museum,Beijing 100050 2) Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing 100044 3) Institute of high energy physics,Chinese Academy of Sciences,Beijing 100039 |
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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. |
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| Keywords: | Dinosaur egg abnormal content of trace elements paleoclimate paleoecology Xixia Basin Henan Province |
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