Mapping hydrothermally altered minerals with AST_07XT, AST_05 and Hyperion datasets using a voting-based extreme learning machine algorithm

•ASTER thermal infrared (TIR) bands can successfully identify Mg-OH group minerals.•In accordance with the image processing results, a new deposit associated with felsic intrusions has been discovered.•ASTER and Hyperion images are used for hydrothermally altered mineral mapping.•A novel voting-based extreme learning machine (V-ELM) algorithm is introduced to map hydrothermally altered minerals.