Near Infrared Spectroscopy of the Cretaceous Red Beds in Inner Mongolia Dongshengmiao
LIAO Yi-peng1, CAO Jian-jin1, 2*, WU Zheng-quan1, LUO Song-ying1, WANG Zheng-yang1
1. School of Earth Science and Geological Engineering, Sun Yat-sen University, Guangzhou 510275, China 2. Guangdong Key Laboratory of Geological Process and Mineral Resources Exploration, Guangzhou 510275, China
Abstract:Take the cores and surface weathered soil from the Cretaceous red beds in the western of Dongshengmiao mine of Inner Mongolia and analysis with near-infrared spectroscopy. The result shows that near-infrared spectroscopy can identify mineral quickly through the characteristic absorption peaks of each group. The Cretaceous red beds in the western of Dongshengmiao mine is argillaceous cementation, it is mainly composed of quartz, feldspar, montmorillonite, illite, chlorite, muscovite etc, the mineral composition is mainly affected by the upstream source area. The clay mineral like montmorillonite water swelling and uneven drying shrinkage expands the original crack and creates new cracks, reduces its strength, which is the mainly reason of its disintegration. According to the composition of clay mineral, we speculate its weathering process is mainly physical weathering, the climate during the weathering is cold and dry. The results can not only improve the geological feature of the mining area, but also show that the near-infrared spectroscopy technology can analyze the mineral composition of soil and rock effectively on the basis of Mineral spectroscopy, which demonstrates the feasibility of the near-infrared spectroscopy can analyze minerals in soil and rock quickly, that shows the feasibility in geology study, provides new ideas for the future research of soil and rock.
廖宜鹏1,曹建劲1,2*,吴政权1,罗松英1,王正阳1 . 内蒙古东升庙白垩系红层的近红外光谱分析 [J]. 光谱学与光谱分析, 2015, 35(09): 2521-2525.
LIAO Yi-peng1, CAO Jian-jin1, 2*, WU Zheng-quan1, LUO Song-ying1, WANG Zheng-yang1 . Near Infrared Spectroscopy of the Cretaceous Red Beds in Inner Mongolia Dongshengmiao. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(09): 2521-2525.