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In this paper,we show that geo-anomalies can be delineated for mineral deposit prediction according to singularity theories developed to characterize nonlinear mineralization processes.Associ-ating singularity and geo-anomalies makes it possible to quantitatively study geo-anomalies with modern nonlinear theories and methods.This paper introduces a newly developed singularity analysis of nonlinear mineralization processes and nonlinear methods for characterizing and mapping geo-anomalies for mineral deposit prediction.Mineral deposits,as the products of singular mineralization processes caused by geo-anomalies,can be characterized by means of fractal or multifractal models.It has been shown that singularity can characterize the degree of geo-abnormality,and this has been demonstrated to be useful for mapping anomalies of undiscovered mineral deposits.The study of mineralization and mineral deposits from a nonlinear process point of view is a new but promising research direction.This study emphasizes the relationships between geo-anomalies and singularity,including singular processes resulting in singularity and geo-anomalies,the characterization of singularity and geo-anomalies and the identification of geo-anomalies for mineral deposit prediction.The concepts and methods are demon-strated using a case study of Sn mineral deposit prediction in the Gejiu mineral district in Yunnan,China.