Using GMS to Formulate the Geological Sections for Hamdania Region, North Iraq

Predicting Three dimention solid model for aquifers in any region is one of the most important aims for hydrologists to reach. The Electrical investigation data have been used for Hamdania region. This data represent the aquifers thickness in electrical sounding points. AThree dimention computerized solid model was build using the groundwater modeling system (GMS). This has been done by connecting the aquifer upper points to make triangular irregular network (TIN), which is repeated for all aquifers in the study region to make four TINs. By filling between these TINs a 3D solid model was build for geological aquifers in the study region. The size and the dimentions for all aquifers were calculated from this model. The volume for Bi Hasan Formation is (21 x 109) m3 while the volume for Injanah Formation is (136 x 109) m3.