A structural interpretation of land gravity data was carried out in Garoua (North Cameroon) in a view to delineating the structural framework of the area. The isostatic gravity anomalies were computed based on the Airy-Heiskanen local compensation model. The interpretation of those isostatic anomalies combined with profiles P_x and P_y shows that the isostatic compensation concept is not fully satisfied. Furthermore, the tilt derivative techniques, i.e., tilt derivative (TDR) and its total horizontal derivative (THDR_TDR), were applied on the first vertical derivative (FVD) of the optimum residual Bouguer grid obtained from an optimum upward continuation height of 20km. This allowed the enhancement of vertical contacts (0°-contour edge of the TDR) and alternatively the location of sources of positive densities, whose depths were manually (1096–7104 m) and automatically (1349 to 8892 m) computed. In addition, the extraction of both shallow and deep structures was achieved from the horizontal gradient of both the optimum residual and regional anomaly. As a result, shallow contacts/faults mainly trend NE-SW and E-W, whereas deep contacts/faults have a main NW-SE direction, consistent with the general trend of the residual and Bouguer anomalies. The structural interpretation carried in this study could be useful for mineral exploration perspectives.

在加鲁阿（北喀麦隆）进行了陆地重力数据的结构解释，以划定该地区的结构框架。基于 Airy-Heiskanen 局部补偿模型计算等静压异常。结合剖面P _x和P _y对这些等静压异常的解释表明均衡补偿概念并未完全满足。此外，倾斜导数技术，即倾斜导数（TDR）及其总水平导数（THDR_TDR），被应用于从20km的最佳向上延续高度获得的最佳剩余布格网格的一阶垂直导数（FVD）。这允许增强垂直接触（TDR 的 0° 轮廓边缘）以及正密度源的位置，其深度是手动（1096-7104 m）和自动（1349 至 8892 m）计算的。此外，从最优残差和区域异常的水平梯度中实现了浅层和深层结构的提取。因此，浅接触/断层主要趋向 NE-SW 和 EW，而深接触/断层具有主要的 NW-SE 方向，与残差和布格异常的总趋势一致。本研究中进行的结构解释可能对矿产勘探有用。