## 4 Conclusions  
The magnetic anomalies currently observed along the region reflect the different structure, composition, and geodynamic history of the Bou Azzer inlier and surrounding margins that developed during Precambrian and Phanerozoic time. Several magnetic domains with different magnetic patterns have been observed and provide new information about the spreading evolution and architecture of the inlier.  
To illustrate this interpretation of the entire region, specifically the Bou Azzer inlier, the structural and mining potential map were also interpreted using CET Grid and Porphyry Analysis and other tools for magnetic modelling. The structural and mining potential field modelling of the area reveal that the region is favorable for cobalt and associated mineralizations regarding the observed structural complexity, mainly characterized by important discontinuities considered as potential zones for the circulation of hydrothermal fluids (zones of mineralization).  
In addition, the obtained results already show different lateral heterogeneities in the area, indicating a complex tectonic event in addition to the thickness of the regional overburden. However, as only magnetic results exist along region through the Bou Azzer inlier, the interpretations of the susceptibilities of structures remain important, as magnetic structures are related to the regional geological context.  
The geological and geophysical ground exploration is recommended and will be better integrated with the aeromagnetic survey at the scale of the studied region, essentially around and on the identified potential zones, to re-evaluate and update the tectonic evolution and kinematic and geodynamic context of the region in light of the new observations.  
We also suggest to better link the region not covered by the aeromagnetic survey in the future. The segmentation of the Bou Azzer inlier is most likely controlled by the early rift and breakup history. Gravity and seismic investigation, as well as modelling and interpretations of the Bou Azzer inlier integrated with our observations, can be relevant to better assess the structure and evolution of the high-complexity zones.  
More work is still required to fully constrain the evolution of the Bou Azzer inlier. A similar modern aeromagnetic survey on the uncovered regions will also be an obvious and relevant proposal to fully understand the spreading evolution of the extremity of the inlier. A remapping of the inlier will also be relevant to better understand the transition to the southern and northern spreading system initiated to the east and west of the inlier margins.  
Conceptualization, A.S., S.S., A.M. ([PERSON]) and A.M. ([PERSON]); methodology, A.S., S., A.M. ([PERSON]) and A.M. ([PERSON]); software, A.S., S., A.M. ([PERSON]) and A.M. ([PERSON]); validation, A.S., S.C., S., A.M. ([PERSON]), Z.B., A.M. ([PERSON]), M.A.Z., Y.Z., M.B. and A.M. ([PERSON]); formal analysis, A.S., S.C., S.S. and A.M. ([PERSON]); investigation, A.S.; resources, A.S. and A.M. ([PERSON]); data curation, A.S.; writing--original draft preparation, A.S., S.C. and S.S.; writing--review and editing, A.S., S.C., S.S., A.M. ([PERSON]), Z.B., A.M. ([PERSON]), M.A.Z., Y.Z., M.B. and A.M. ([PERSON]); visualization, A.S., S., A.M. ([PERSON]), A.M. ([PERSON]) and A.M. ([PERSON]); supervision, S.C., S., A.M. ([PERSON]), A.M. ([PERSON]) and Z.B.; project administration, A.S.; funding acquisition, A.S. and A.M. ([PERSON]). All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
Not applicable.  
The data presented in this study are available on request from the corresponding authors.  
The authors declare no conflict of interest.