| 裸露区综合航空遥感资料的地质判释 |
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| 引用本文： | 杨柏林.裸露区综合航空遥感资料的地质判释[J].地质科学,1988,0(2):188-195. |
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| 作者姓名： | 杨柏林 |
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| 作者单位： | 中国科学院地球化学研究所 |
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| 摘 要： | 本文依据西北某地一次综合性航空遥感试验取得的多光谱图象、热红外扫描图象和微波辐射等遥感资料,结合室内对岩矿测量的反射率、复合介电系数、等效温度等资料,用目视判释法对该区地质问题进行了研究。提出了热红外遥感资料和微波遥感资料对寻找铁和水资源前途,同时对断裂构造的判释也很有意义。
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| 关 键 词： | 航空遥感地质 多光谱遥感 热红外遥感 微波遥感 遥感应用 |
| 收稿时间： | 1986-08-01 |
| 修稿时间： | 1986-08-01; |
GEOLOGICAL INTERPRETATION OF SYNTHETICAL AERIAL REMOTE SENSING DATA IN EXPOSED DISTRICT |
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| Yang Bailing.GEOLOGICAL INTERPRETATION OF SYNTHETICAL AERIAL REMOTE SENSING DATA IN EXPOSED DISTRICT[J].Chinese Journal of Geology,1988,0(2):188-195. |
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| Authors: | Yang Bailing |
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| Institution: | Institute of Geuchemistry, Academia Simca, Guiyang |
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| Abstract: | The multispectral images and the thermal infrared scanning images and microwave irradiation data had been obtained during a synthetical aerial remote sensing study in Northwest China, together with the data on laboratory and synthetical analyse, a new way has been provided in geological study in this area.The differentiation and explanation of multispectral images based on their colors and morphological features can be used to distinguish various types of rock, and recognize iron ore horizons. The results of the measurements on the reflectance of multispectral image on negative films in laboratory indicate that the values are decreased in order of marble, dolomitic-marble→granite, slate→diorite→tuffaceous sandstone→iron ore horizons, which is consistant with the reflection tints of rocks and ores in multespectral images, that is greyish white-flight grey→grey→deep grey→dark grey→black. Therefore, we can use it to distinguish various types of rocks, recognize iron ore horizons and fault structures.The differentiation and explanation of thermal infrared scanning images were made on the basis of multispectral images, contrasting with thermal infrared scanning images at the different times, together with the data of measured thermal infrared scanning images (converted into equivalent temperatures).The fault structures show thermal infrared scanning images with stripped anomalies. It is dark-grey in daylight and light grey in night.The microwave irradiation curves have been converted into brightness-temperature curves. They are coincided with the multispectral images. The compositional dielectric constants of rocks and ores measured in laboratory gradually decreased in order of sandstone→granite→ diorite→limestone→marble→tuffaceous sandstone→iron ore horizons. There is an invese pro-potion between the brightness temperature and the compositional dielectric constant of rocks, it can be used to identify the types of rocks and ores. The compositional dielectric constant of iron are is much higher than those of the other rocks. Therefore, the brightness temperature curve of the iron ore shows apparent valleys. It is an important indication for searching iron ore. |
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| Keywords: | aerial remote sensing geology multispectral remote sensing thermal infrared remote sensing microwave remote sensing application of remote sensing |
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