The Marmarica uplift extends approximately E–W along the northeastern coastline of Libya and delimits the northeastern margin of the Cyrenaica Platform. It is considered as a structure inversion feature via the deformation of dextral strike-slip tectonics. The database containing information about structural features such as faults, folds, and fractures was built in the form of GIS thematic layers enabling interpretation and analysis by using the software (Arc GIS v10.5). Folds are recognized, based on their intensity and style, into three phases (F1, F2, and F3). F1 folds are the oldest and are recorded in the Al Majahir and Al Bayda formations. They are recognized as overturned types with their axis oriented approximately ENE–WSW. Some of these folds extend for approxiately 2 km. F2 folds are developed at a minor scale about 5.5 km northwest of Al Burdia in the Al Faidiyah Formation. These folds trend NE–SW with a general vergence SSE. Their styles is tight, overturned, and asymmetric. The F3 phase of folding is a major event and represents the final phase of folding. These folds plunge to the SW and exhibit a morphology of gentle and elongated character formed during the Oligocene to Miocene.  

Faults are most prominent in the study area and markedly concentrated in the Al Burdia area and are recognized by three main trends; the NW–SE trending dextral strike-slip faults (synthetic shears), N–S to NNE–SSW trending sinistral strike-slip faults (antithetic shears), and E–W trending faults. Another array of NNW–SSE normal faults are also encountered and run approximately perpendicular the fold axes. Kinematic indicators along these faults are documented in the field based on slickensides, flower structures, small scale of dextral and sinistral displacement, and pop up structures, which indicate that the sequence of faulting is initiated by pure wrenching and, in part, transpression in the Late Cretaceous to Oligocene, which then continued with pure wrenching afterwards until the Miocene. Joints are distinguished into two types; shear and tensional joints. In the present area, the joints are regular and, sometimes, irregular and along their planes there are little or no displacements. An integration with subsurface data in the study area was used to support and enhance the understanding of the tectonic frame work of the surface geology, including four wells (B1–33, C1–33, A1–LP7C, and B1–LP7C). These four wells were checked carefully and studied using their composite logs by Petrel software v.2018 for visualization and extracting different constructing stratigraphic and structural cross sections. In addition, two 2D seismic lines, a bouguer gravity map, and depth structure maps were also included and developed for this study.