【摘 要】
：
In order to discuss the effect of tectonic stress on the structural evolution of coal,given the importance attached to High-resolution Transmission Electron Mic
【机 构】
：
College of Safety Engineering,College of Geoscience and Surveying Engineering
论文部分内容阅读
In order to discuss the effect of tectonic stress on the structural evolution of coal,given the importance attached to High-resolution Transmission Electron Microscopy (HTEM),we investigated several aspects of material structures of high-rank Carboniferous period coal,located in the northern foreland basin of the Dabie orogenic belt in eastern China.High powered crystal lattice images of Bright Fields (BF) and Selected Area Diffraction patterns (SAD) of different types of metamorphism in coal were obtained.The results show that the Basic Structural Units (BSU) become increasingly more compact as a function of rising temperature and pressure.Under pressure,the local orientation of molecules is strengthened,the arrangement of BSU speeds up and the degree of order is clearly enhanced.
其他文献
Two media bed (gravel and Filtralite NR) were tested in a mesocosm to evaluate the removal of organic matter (as chemical oxygen demand (COD)), ammonia (NH4-N),
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
Capillaria hepatica ( C.hepatica) is a parasitic nematode causing hepatic capillariasis in numerous mammals.Ecologic studies showed that the first hosts of C.he
Cu-Zn-Al slurry catalysts were prepared using a complete liquid-phase preparation technology under different heat treatment atmospheres. The catalysts were char
A female patient with anemia and hypoalbuminemia was admitted to our hospital due to an over 20-year history of recurrent dizziness, fatigue and ankle edema.She
In order to analyze changes in human settlement in Xuzhou city during the past 20 years,changes in land cover and vegetation were investigated based on multi-te
Soil aggregation and organic matter of soils from the pre-Pyrenean range in Catalonia (NE Spain) were studied, in order to assess their quality as carbon sinks
This paper analyzed forest land use change in Trans-Boundary Laos-China Biodiversity Conservation Area which is called Namha National Biodiversity Conservation
Information on the most influential factors determining gas flux from soils is needed in predictive models for greenhouse gases emissions.We conducted an intens
Numerous studies have been devoted to the physical-chemical weathering processes leading to the creation of unique soil formations having their own history that