Spectroscopy and Spectral Analysis, Volume. 35, Issue 11, 3172(2015)
Study on the Geochemical Anomalies Identification of REE Based on HJ-1A-HSI
The characteristic spectral bands of REE do not vary with the occurrence state, cannot be used to identify mineral species, but can prove the existence of its own. Here we report the spectrum characteristics of REE and their compounds by remote sensing wave bandfrom visible light-near infrared, with the quantitative relationship between the contents of REE and absorption index of characteristic spectral bands. The experimental study was carried out in Bayan Obo area, Inner Mongolia. Spectrums and Nd contents of typical rock and ore samples were gathered and analyzed. There is positive correlation between the Nd content, the absorption depth and absorption index of different spectrum characteristics (correlation coefficient >0.778). Moreover, the correlation between absorption index of 726~772 nm band and Nd content is the best, at 0.937. As mentioned above, the quantitative model and the inversion information remote sensing geochemical anomaly of Nd were built by the band of HJ-1A-HIS hyperspectral remote sensing data. Our results consistent with 1∶200 000 stream sediment geochemical anomalies of Nd. The model provides a new means for rapid extract regional geochemical anomalies of REE.
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CHEN Yong-gan, WANG Mei-juan, LI Peng. Study on the Geochemical Anomalies Identification of REE Based on HJ-1A-HSI[J]. Spectroscopy and Spectral Analysis, 2015, 35(11): 3172
Received: Jun. 21, 2014
Accepted: --
Published Online: Feb. 2, 2016
The Author Email: Yong-gan CHEN (cyg49711@sohu.com)