A computer-implemented method comprising the following steps executed by a computer processor: providing a mesh configured to represent a geologic environment that comprises unconformities (1012, 1540); receiving data of a volume of interest including a subterranean formation; based on the received data: defining conformable sequences in the volume of interest, the boundaries of the conformable sequences being unconformities; defining a first implicit function, represented as a property for the volume of interest; interpolating on the mesh, the first implicit function to provide values for the implicit function; identifying a first iso-surface of the first implicit function based on a portion of the values, wherein the first iso-surface represents one of the unconformities residing between two of the conformable sequences; and using the identified first iso-surface to split the mesh into a first sub-mesh and a second sub-mesh, wherein the first sub-mesh comprises one of the conformable sequences and the second sub-mesh comprises another one of the conformable sequences; the method being characterized in that it further comprises the steps of: interpolating, a second implicit function, wherein the interpolating of the second implicit function is restricted to the within the first sub-mesh; identifying a second iso-surface of the second implicit function based on a portion of the values, wherein the second iso-surface represents another one of the unconformities residing between two of the conformable sequences contained within the first sub-mesh and using the identified second iso-surface to split the first sub-mesh; creating a model of the geologic environment based on the created first and second sub-meshes (1322, 1326) and iso-surfaces; and outputting the created model for use in the design or execution of a survey or a prospect. providing a mesh configured to represent a geologic environment that comprises unconformities (1012, 1540); receiving data of a volume of interest including a subterranean formation; based on the received data: defining conformable sequences in the volume of interest, the boundaries of the conformable sequences being unconformities; defining a first implicit function, represented as a property for the volume of interest; defining conformable sequences in the volume of interest, the boundaries of the conformable sequences being unconformities; defining a first implicit function, represented as a property for the volume of interest; interpolating on the mesh, the first implicit function to provide values for the implicit function; identifying a first iso-surface of the first implicit function based on a portion of the values, wherein the first iso-surface represents one of the unconformities residing between two of the conformable sequences; and using the identified first iso-surface to split the mesh into a first sub-mesh and a second sub-mesh, wherein the first sub-mesh comprises one of the conformable sequences and the second sub-mesh comprises another one of the conformable sequences; the method being characterized in that it further comprises the steps of: interpolating, a second implicit function, wherein the interpolating of the second implicit function is restricted to the within the first sub-mesh; identifying a second iso-surface of the second implicit function based on a portion of the values, wherein the second iso-surface represents another one of the unconformities residing between two of the conformable sequences contained within the first sub-mesh and using the identified second iso-surface to split the first sub-mesh; creating a model of the geologic environment based on the created first and second sub-meshes (1322, 1326) and iso-surfaces; and outputting the created model for use in the design or execution of a survey or a prospect. interpolating, a second implicit function, wherein the interpolating of the second implicit function is restricted to the within the first sub-mesh; identifying a second iso-surface of the second implicit function based on a portion of the values, wherein the second iso-surface represents another one of the unconformities residing between two of the conformable sequences contained within the first sub-mesh and using the identified second iso-surface to split the first sub-mesh; creating a model of the geologic environment based on the created first and second sub-meshes (1322, 1326) and iso-surfaces; and outputting the created model for use in the design or execution of a survey or a prospect.