塔河地区主要岩石金属元素含量、物性参数与光谱特征间的关系研究

发布时间：2018-03-24 15:54

本文选题：岩石光谱反射率　切入点：吸收深度　出处：《光谱学与光谱分析》2017年08期

【摘要】：测试了采集自黑龙江省塔河地区的300块并进行抛光处理后的岩石样本350~2 500nm间光谱反射率、磁化率、密度、孔隙率和金属元素含量(Fe,Mn,Ti,Zr,V,Zn,Pb,Nb,Co,Bi),并计算了其光谱吸收深度。在此基础上,以相关性分析方法为依据,探讨了所采集岩石样本的金属元素含量、物性参数、反射光谱间的特征响应关系,计算了岩石样本金属元素和光谱吸收深度间的相关性系数、物性参数与光谱反射率的相关性系数,获得成果如下:(1)在410nm附近,闪长玢岩各金属元素与吸收深度间的相关系数都存在尖锐的波峰和波谷,相关系数达到极值。(2)岩石样本金属元素和吸收深度的相关性研究中,侵入岩的相关系数则显著高于其他岩石类型。(3)1 400nm附近,岩石样本金属元素与吸收深度、各物性参数与光谱反射率的相关性都存在尖锐的波峰和波谷。其中磁化率、密度、视孔隙率与光谱反射率的相关系数在可见光范围内波动变化较大。(4)在1 900~2 500nm范围内,金属元素与光谱吸收深度、各物性参数与光谱反射率间的相关系数波动较大,其中金属元素和光谱吸收深度呈显著相关,相关系数达到极值。进一步研究了岩石金属元素和物理特性与其光谱特征的关系,对于不同岩性的不同波段的反射率与不同金属元素间分布状态的探测,具有一定意义。
[Abstract]:Collected from Heilongjiang area of Tahe Province, the 300 block and 350~2 500nm rock samples are polished after the spectral reflectance, the magnetic susceptibility test, density, porosity and content of metal elements (Fe, Mn, Ti, Zr, V, Zn, Pb, Nb, Co, Bi), and calculated the absorption depth. On this basis, the correlation analysis method based on the content of metal elements to collect rock samples, material parameters and reflectance spectra of the response relationship, the correlation coefficient between the absorption depth of rock samples of metal elements and spectral correlation coefficient to calculate the physical parameters and spectral reflectance, obtained results are as follows: (1) in the vicinity of 410nm, diorite metal elements and the correlation coefficient between the absorption depth are sharp peaks and troughs, the correlation coefficient reaches the maximum. (2) rock samples and metal elements absorption depth correlation study, intrusive rocks related The coefficient is significantly higher than that of other rock types. (3) 1 400nm near the rock samples of metal elements and absorption depth, correlation parameters and spectral reflectance are sharp peaks and troughs. The magnetic susceptibility, density, apparent porosity and correlation coefficient of spectral reflectance changes in the visible range is larger. (4) 1 900~2 in the range of 500nm, metal elements and spectral absorption depth, correlation coefficient parameters and spectral reflectance between the fluctuations, the metal element and the absorption depth was significantly correlated, the correlation coefficient reached maximum. Further studies the relationship between metal elements and rock physical properties and their spectral characteristics, for the detection of the distribution of different lithology of different band reflectance and different metal between elements, has a certain significance.

【作者单位】：吉林大学地球探测科学与技术学院;95956部队;中科遥感科技集团有限公司;
【基金】：国家自然科学基金项目(40930314) 埃及地质矿产与资源环境遥感解译,所属二级项目:“一带一路”资源环境卫星遥感解译与应用(DD2016117) 东北内蒙古重点地区地质矿产调查评价项目(12120115041801)资助
【分类号】：P585

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