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应用扫描电子显微镜研究石英表面结构是一种新技木。石英碎屑在沉积和搬运过程中,遭到机械蘑蚀化学溶解和沉淀作用,产生不同的表面结构。根据这些表面结构形态组合和出现几率可作沉积环境分析。我们对普陀岛现代海岸的石英颗粒作了扫描电镜观察,发现各亚相带的石英表面结构有所不同。潮上带和潮间带上部,波浪能量大,主要产生机械作用形态,如贝壳断口,碟形坑、V形坑等。潮下带,波浪能量纸,主要是化学溶解和沉淀作用所形成的溶蚀坑和被复薄片。根据上述特点,石英颗粒表面结构组合特征,可推测沉积时海岸的能量条件,并可用作亚相划分的辅助标志。
The application of scanning electron microscopy to study the surface structure of quartz is a new technique. Quartz detritus in the process of deposition and handling, mechanical dissolution by chemical dissolution and precipitation, resulting in different surface structures. According to the combination of surface morphology and the probability of occurrence of sedimentary environment analysis. We observed the quartz grains of the modern coast of Putrajaya by scanning electron microscopy and found that the quartz surface structure of each sub-facies belt is different. Upper tidal zone and intertidal zone, large wave energy, the main role of mechanical forms, such as shell fracture, dishing, V-shaped pit and so on. Tide zone, the wave of energy paper, mainly chemical dissolution and sedimentation formed by corrosion pits and was thin flake. According to the above characteristics, the combination of surface features of quartz grains can predict the energy conditions of the coast during sedimentation and can be used as an auxiliary marker for sub-phase division.