Characteristics of the Microstructure and Mineral Composition of Completely Decomposed Migmatitic Granite
文献类型：期刊论文
| 作者 | Yan,Song3,4; Tang,Hua4; Wu,Zhenjun4; Li,Sitao2; Rao,Qizhi1 |
| 刊名 | IOP Conference Series: Earth and Environmental Science
 |
| 出版日期 | 2021-10-01 |
| 卷号 | 861期号:2 |
| 关键词 | completely decomposed migmatitic granite microstructure mineral composition water sensitivity |
| ISSN号 | 1755-1307 |
| DOI | 10.1088/1755-1315/861/2/022059 |
| 英文摘要 | Abstract Based on the characteristics of special mineral composition, complex internal structure and remarkable water effect of completely decomposed migmatitic granite(CDMG), the mineral composition distribution was obtained by X-ray powder diffraction (XRD), and the microstructure of CDMG with different water content was studied by using scanning electron microscope(SEM). The following new progress was made: The mineral composition of the rock samples is mainly quartz, feldspar, montmorillonite, illite and kaolinite. The microstructure of the sample is composed of coarse-grained quartz and feldspar as the framework, and laminated and fragmental clay minerals as the filling materials, forming a relatively dense framework filling structure. Through statistical analysis of the particle morphology and pore distribution data of CDMG samples, it is found that with the increase of moisture content, the filling structure changes from dense to loose. Because of the swelling potential induced by water absorption of hydrophilic clay minerals, and the uneven distribution of clay minerals such as montmorillonite, the filling materials are not uniformly expanded, which eventually leads to the destruction of the original filling structure and the decrease of the density. |
| 语种 | 英语 |
| WOS记录号 | IOP:EES_861_2_022059 |
| 出版者 | IOP Publishing |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/28414]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Anhui Shuyan Intelligent Technologies Inc, Wuhu 241299, China 2.Yunnan Yulin Highway Construction Company Limited, Kunming 650200, China 3.University of Chinese Academy of Sciences, Beijing, 100049, China 4.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, China |
| 推荐引用方式 GB/T 7714 | Yan,Song,Tang,Hua,Wu,Zhenjun,et al. Characteristics of the Microstructure and Mineral Composition of Completely Decomposed Migmatitic Granite[J]. IOP Conference Series: Earth and Environmental Science,2021,861(2). |
| APA | Yan,Song,Tang,Hua,Wu,Zhenjun,Li,Sitao,&Rao,Qizhi.(2021).Characteristics of the Microstructure and Mineral Composition of Completely Decomposed Migmatitic Granite.IOP Conference Series: Earth and Environmental Science,861(2). |
| MLA | Yan,Song,et al."Characteristics of the Microstructure and Mineral Composition of Completely Decomposed Migmatitic Granite".IOP Conference Series: Earth and Environmental Science 861.2(2021). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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