内蒙古东升庙白垩系红层的近红外光谱分析

在内蒙古东升庙矿区西部采取白垩系红层岩心及地表风化土壤样，用近红外光谱分析技术对各个样品进行测试分析。结果表明，近红外光谱技术能通过矿物中各基团的特征吸收峰快速鉴别出矿物，东升庙矿区西部白垩系红层为泥质胶结主要由石英、长石、蒙脱石、伊利石、绿泥石、白云母等组成，其矿物组成主要受到上游物源区影响;其崩解主要为蒙脱石等粘土矿物吸水膨胀，失水收缩不均匀，使原有裂隙扩大并产生新的裂隙，导致强度降低，发生崩解;根据其粘土矿物的组合推测其风化过程中气候以寒冷干燥为主，风化过程主要为物理风化。研究结果一方面可以完善该矿区地质特征，另一方面表明在矿物光谱学的基础上，近红外光谱分析技术可以有效地分析土壤和岩石的矿物成分，从而论证了近红外光谱分析技术应用于土壤、岩石矿物的的快速分析可行性，表明了其在地质研究中的可行性，为以后的土壤、岩石研究提供新思路。

Near Infrared Spectroscopy of the Cretaceous Red Beds in Inner Mongolia Dongshengmiao

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.