干湿循环对恐龙化石力学性质影响研究

Effects of Dry and Wet Cycle on the Mechanical Properties of Dinosaur Fossils

摘要:

恐龙是早已灭绝的古脊椎动物，恐龙化石在地质学，特别是在古环境学研究中具重要意义，它在地层划分、地质时代确定以及古地理、古环境、古气候研究尤其是生物灭绝事件研究等方面，具有极其重要的理论和实际价值。近几年，恐龙化石不断被发掘，对恐龙化石的保护日益显得紧迫和重要。本文通过干湿循环和膨胀试验，研究水对化石抗风化力的影响，试验结果证明水对化石围岩风化的影响远大于对恐龙化石的影响。

Abstract:

Dinosaurs are ancient vertebrates that have long been extinct. Dinosaur fossils are of great significance in geology, especially in the study of paleontology. It has important, scientific, theoretical and practical values on the stratigraphic division, the determination of the geological era, the study of paleogeography, paleoenvironment, paleoclimate and biological extinction events. In recent years, dinosaur fossils have been continuously excavated, and the protection of dinosaur fossils has become increasingly urgent and important. In this paper, the effects of water on the weathering ability of fossils have been studied through dry and wet cycles and expansion experiments. As showed by the experimental results, the influence of water on weathering of fossil surrounding rocks is much greater than that of dinosaur fossils.