A computer-implemented method for generating a hybrid deterministic-geostatistical earth model, the method comprising: obtaining a plurality of image volumes associated with an earth model of a geologic volume of interest that includes one or more geobodies, the earth model being based on seismic data representing energy that has propagated through the geologic volume of interest from one or more energy sources to one or more energy receivers, the seismic data including one or more of at least one offset stack, at least one angle stack, or at least one azimuth stack, individual ones of the plurality of image volumes corresponding to different stack domains; identifying one or more discrete geobody representations in individual ones of the plurality of image volumes by analyzing one or more of the plurality of image volumes using one or both of a seismic stratigraphic analytical technique or a seismic geomorphologic analytical technique, individual ones of the one or more geobody representations corresponding to the one or more geobodies included in the geologic volume of interest; assigning facies distributions to individual ones of the plurality of image volumes, the facies distributions including spatially descriptive values and/or rock properties assigned to the identified one or more geobody representations based on one or both of borehole data and/or geophysical modeling; generating a deterministic framework of the earth model based on an aggregation of the facies distributions, the deterministic framework being a matrix associated with the earth model that extends over some or all of the earth model and includes individual ones of the identified one or more geobody representations and one or more undefined regions; identifying one or more stratigraphic gaps in the deterministic framework of the earth model, the one or more stratigraphic gaps being devoid of identified geobody representations; and filling the identified one or more stratigraphic gaps in the deterministic framework of the earth model with individual ones of the identified geobody representations to generate the hybrid deterministic-geostatistical earth model. obtaining a plurality of image volumes associated with an earth model of a geologic volume of interest that includes one or more geobodies, the earth model being based on seismic data representing energy that has propagated through the geologic volume of interest from one or more energy sources to one or more energy receivers, the seismic data including one or more of at least one offset stack, at least one angle stack, or at least one azimuth stack, individual ones of the plurality of image volumes corresponding to different stack domains; identifying one or more discrete geobody representations in individual ones of the plurality of image volumes by analyzing one or more of the plurality of image volumes using one or both of a seismic stratigraphic analytical technique or a seismic geomorphologic analytical technique, individual ones of the one or more geobody representations corresponding to the one or more geobodies included in the geologic volume of interest; assigning facies distributions to individual ones of the plurality of image volumes, the facies distributions including spatially descriptive values and/or rock properties assigned to the identified one or more geobody representations based on one or both of borehole data and/or geophysical modeling; generating a deterministic framework of the earth model based on an aggregation of the facies distributions, the deterministic framework being a matrix associated with the earth model that extends over some or all of the earth model and includes individual ones of the identified one or more geobody representations and one or more undefined regions; identifying one or more stratigraphic gaps in the deterministic framework of the earth model, the one or more stratigraphic gaps being devoid of identified geobody representations; and filling the identified one or more stratigraphic gaps in the deterministic framework of the earth model with individual ones of the identified geobody representations to generate the hybrid deterministic-geostatistical earth model.