[3] [3] Liu J B, Zhang Y, Wang H Y, et al. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018, 199: 43.

[5] [5] Shi T Z, Liu H Z, Chen Y Y, et al. Journal of Hazardous Materials, 2016, 308: 243.

[6] [6] Speta M, Rivard B, Feng J L, et al. AAPG Bulletin, 2015, 99(7): 1245.

[7] [7] Qu L Q, Han W G, Lin H, et al. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014, 7(11): 4559.

[9] [9] An J L, Zhang X R, Zhou H Y, et al. IEEE Journal of Slected Topics in Applied Earth Observations and Remote Sensing, 2018, 11(7): 2513.

[10] [10] Imani M, Ghassemian H. IEEE Geoscience and Remote Sensing Letters, 2014, 11(8): 1325.

[11] [11] Liu J B, Han J C, Zhang Y, et al. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018, 204: 33.

[12] [12] Liang L, Di L P, Huang T, et al. Remote Sensing, 2018, 10: 10.3390/rs10121940.

[14] [14] Fang Y, Li H, Ma Y, et al. IEEE Geoscience and Remote Sensing Letters, 2014, 11(10): 1712.

[15] [15] Cui M S, Prasad S, Li W, et al. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2013, 6(3): 1688.