文章摘要
秦凯,陈建平,赵英俊,孙雨,周家晶,杨国防.基于航空高光谱遥感岩性识别技术研究[J].矿产勘查,2015,6(5):594-600
基于航空高光谱遥感岩性识别技术研究
Study on lithological identification method based on airborne hyper-spectral data
投稿时间:2015-05-26  
DOI:
中文关键词: 岩性识别  航空高光谱  地质填图  柳园  甘肃
英文关键词: lithological identification, airborne hyper-spectral, geological mapping, Liuyuan, Gansu
基金项目:中国地质调查局地质调查项目(编号:12120113072900)资助。
作者单位
秦凯 中国地质大学北京,北京 100083
国土资源与高新技术研究中心,北京 100083 
陈建平 中国地质大学北京,北京 100083
国土资源与高新技术研究中心,北京 100083 
赵英俊 核工业北京地质研究院,北京 100029
遥感信息与图像分析技术国家级重点实验室,北京 100029 
孙雨 核工业北京地质研究院,北京 100029
遥感信息与图像分析技术国家级重点实验室,北京 100029 
周家晶 核工业北京地质研究院,北京 100029
遥感信息与图像分析技术国家级重点实验室,北京 100029 
杨国防 核工业北京地质研究院,北京 100029
遥感信息与图像分析技术国家级重点实验室,北京 100029 
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中文摘要:
      基于甘肃北山柳园南白石岭研究区航空高光谱遥感CASI/SASI数据(波段范围0.38~2.45 μm),文章提出了一种岩性识别与制图的方法。研究区内的岩石主要包括花岗岩、闪长岩、大理岩、玄武岩和石英闪长岩等,实验室光谱测量结果表现为:该区域的花岗岩、闪长岩和石英闪长岩光谱显示铝羟基、镁羟基和铁羟基特征,主要是由于岩石中含有白云母、高岭土、绿泥石等矿物;大理岩光谱显示2330 nm处的强吸收特征;基于研究区的航空高光谱数据和野外实测地面光谱数据,开展了岩性识别及制图研究,获取了研究区的岩性分布图,并建立了岩性识别与制图的流程和方法。通过与已有岩性图比较和野外验证,证明了流程与方法的有效性。
英文摘要:
      The authors proposed a new method for rock identification and geological mapping based on airborne hyper-spectral CASI/SASI data (wavelength:380~2450 nm) in the case study of Nanbaishiling area in Liuyuan, Gansu. The main rocks distributed in the study area are granite, diorite, marble, basalt and quartzite. The laboratory measurement results indicate that spectral characteristics of granite, diorite, and quartz diorite have Al-OH, Fe-OH, Mg-OH absorption character resulted from muscovite, kaolinite, and chlorite minerals distributed in rocks, and the spectral characteristics of marble has strong absorption in the wavelength of 2330 nm. The lithological identification and geological mapping were conducted based on the high resolution CASI/SASI spectral image and field measured surface spectral data. Finally the 1∶500 000 scale geological map was completed, and meanwhile the procedure and approach of the lithological identification were established. By comparing with the existing lithological map and by the field verification, it indicates the effectiveness of the procedure and approach based on the airborne hyper-spectral data.
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