Extraction of reduced alteration information based on Aster data: a case study of the Bashibulake uranium ore district

Fa-wang Ye; De-chang Liu

doi:10.1117/12.813978

29 December 2008 Extraction of reduced alteration information based on Aster data: a case study of the Bashibulake uranium ore district

Fa-wang Ye, De-chang Liu

Author Affiliations +

Proceedings Volume 7285, International Conference on Earth Observation Data Processing and Analysis (ICEODPA); 72854T (2008) https://doi.org/10.1117/12.813978
Event: International Conference on Earth Observation Data Processing and Analysis, 2008, Wuhan, China

Abstract

Practices of sandstone-type uranium exploration in recent years in China indicate that the uranium mineralization alteration information is of great importance for selecting a new uranium target or prospecting in outer area of the known uranium ore district. Taking a case study of BASHIBULAKE uranium ore district, this paper mainly presents the technical minds and methods of extracting the reduced alteration information by oil and gas in BASHIBULAKE ore district using ASTER data. First, the regional geological setting and study status in BASHIBULAKE uranium ore district are introduced in brief. Then, the spectral characteristics of altered sandstone and un-altered sandstone in BASHIBULAKE ore district are analyzed deeply. Based on the spectral analysis, two technical minds to extract the remote sensing reduced alteration information are proposed, and the un-mixing method is introduced to process ASTER data to extract the reduced alteration information in BASHIBULAKE ore district. From the enhanced images, three remote sensing anomaly zones are discovered, and their geological and prospecting significances are further made sure by taking the advantages of multi-bands in SWIR of ASTER data. Finally, the distribution and intensity of the reduced alteration information in Cretaceous system and its relationship with the genesis of uranium deposit are discussed, the specific suggestions for uranium prospecting orientation in outer of BASHIBULAKE ore district are also proposed.

Citation Download Citation

Fa-wang Ye and De-chang Liu "Extraction of reduced alteration information based on Aster data: a case study of the Bashibulake uranium ore district", Proc. SPIE 7285, International Conference on Earth Observation Data Processing and Analysis (ICEODPA), 72854T (29 December 2008); https://doi.org/10.1117/12.813978

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KEYWORDS

Uranium

Remote sensing

Absorption

Short wave infrared radiation

Reflectivity

Carbonates

Minerals

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