초록

용어보기논문에서 용어와 풀이말을 자동 추출한 결과로, 시범 서비스 중입니다. AI-Helper

Abstract ▼ AI-Helper

The identification works of the clay minerals in the Paju series soil of an alfisol, aquic hapludalf, which is derived from the basalt were carried out by the X-ray diffractometer and with the aid of the complete chemical analysis of the clay fractions as well. It also conducted to determine the con...

The identification works of the clay minerals in the Paju series soil of an alfisol, aquic hapludalf, which is derived from the basalt were carried out by the X-ray diffractometer and with the aid of the complete chemical analysis of the clay fractions as well. It also conducted to determine the contents of the identified minerals which correspond to peaks of the diffraction lines appeared at 0.72, 1.0, and 1.4nm respectively. The expansible 2:1 minerals, micas and micaceous minerals, kaolinite minerals, and gibbsite were identified by the X-ray method. Furthermore, the X-ray results are seemed to be partly supported by the chemical analysis because of the presence of illite in the fractions could be confirmed by the values of $SiO_2/A1_2O_3$ mole ratio which ranged from 2.33 to 2.61. The average contents of the 1.4nm minerals. montmorillonite and vermiculite, 1.0nm micas and micaceous minerals, and 0.72nm kaolinite minerals are 42%, 28%, and 30% respectively. The theoretical considerations for the formations of these minerals were also given and that seemed to be well coincided with the experimental results, The presence of the Bt horizons and the kaolinite with gibbsite equilibria in the soil could be interpreted that the weathering is deeply advanced so far under the given soil environmental conditions.