The invention provides a foreland basin deep buried and compressed type complex
gypsum-salt rock identification and distribution prediction method. The method comprises the following steps that: according to lithological vertical change in
outcrop data, drilling data and
logging data, a lithological sequence caused by sedimentary environment change is reserved, and a
gypsum-salt rock deformation and overlying sequence caused by tectonic compression and fault repetition is eliminated, and an original lithologic sequence is established, and an ancient
landform model of a research area is recovered through the original lithologic sequence, and a current
tectonic model is recovered; and three-dimensional gravity, magnetic, electric and seismic joint inversion is carried out, and lithological and lithofacies interpretation of
gypsum-salt rock at the surrounding region of a borehole is carried out through electrical methods,
seismic facies and density anomaly and by means of the original lithologic sequence and the current
tectonic model, and therefore, a lithological sequence plane
distribution rule can be determined. According to the method provided by the invention, based on foreland basin gypsum-salt rock deformation characteristics which are obtained through geologic modeling, and geophysical methods such as three-dimensional gravity, magnetic, electric and seismic methods are adopted to perform joint inversion, and therefore, the distribution characteristics of post-deformation gypsum-salt rock can be accurately determined.