1. A computerized system for determining a position of marker depth coordinates at wells W from a reference group of wells in the building of a geological model of a deposit, the computerized system comprising a module for determining wells, a module for determining a marker depth, a module for determining a value of a functional, a module for composing a gradient vector, a module for smoothing the gradient vector, a module for searching for a larger value of the functional, a module for improving the value of marker depth, a module for additionally smoothing the gradient vector, a module for sorting the marker depth, and an iteration module, the iteration module being related to the module for composing the gradient vector, the module for smoothing the gradient vector, the module for searching for the larger value of the functional, the module for improving the value of marker depth, the module for additional smoothing of the gradient vector, and the module for sorting the marker depth; the iteration module cyclically repeating the procedures of the module for composing the gradient vector, the module for smoothing the gradient vector, the module for searching for the larger value of the functional, the module for improving the value of marker depth, the module for additional smoothing of the gradient vector, and the module for sorting the marker depth until information is obtained that no larger value of the functional is found.