The Hough transform algorithm coupled with spatial filtering for the study of geological structuring control on the drainage network: application to the North Oulmes region, Morocco

Drainage Network Patterns Determinism: A Comparison in Arid, Semi-Arid and Semi-Humid Area of Morocco Using Multifactorial Approach

“…On the other hand, the dendritic, pinnate, parallel, trellis, and rectangular patterns are patterns of low relief, that is to say of a weakly eroded zone associated with a weak tectonic activity, as is the case in the Central Anti Atlas [14]. The correlation between PC1 and the geological parameters "Line-Dens" and "Rock-type" is linked to the local structural control, highlighted by the presence of drainage network patterns (rectangular, trellis, herringbone, and barbed) whose development is mainly controlled by geological structuring [4,5,7,19,23,43].…”

“…The first group consists of patterns controlled by rugged relief and strong structural control (barbed, herringbone, rectangular, and trellis) (Figure 8d-g). These patterns develop in structural areas with a high density of geological lineaments and deformations due to intense uplift tectonic activity [7,[42][43][44]. The uprising concerns the Intrarif, the Mesorif, and the internal Prerif in the External Rif sector, and the folded and tabular Middle Atlas, central Morocco, the Paleozoic bedrock in the Middle Atlas sector, and the Saghro, Bou Azzer, Siroua, and Agdez massifs in the central Anti-Atlas sector (Figure 11).…”

“…As mentioned above, regions where barbed, herringbone, trellis, and rectangular patterns predominate exhibit rugged relief but also several areas of weakness and associated tectonic structures that limit the connection of lower-order flows, thus preventing the further development of immediate higher-order flows. This leads to a decrease in both the total length and the number of streams, and it ultimately results in low drainage density [10,19,43], which explains the negative correlation of these patterns with the drainage density parameter. In the low relief areas, with low lineament density, the drainage network is controlled by slope rather than influenced by structural control, and pinnate and parallel patterns prevail.…”

Optimization of Blasting Parameters Considering Both Vibration Reduction and Profile Control: A Case Study in a Mountain Hard Rock Tunnel

“…Step 3: Through preliminary processing of overbreak-underbreak profiles images, it was found that some images have noise issues, which affect the storage of subsequent overbreak-underbreak curve data. In this study, Hough transform [47,48], threshold segmentation and median filter algorithms are combined to denoise images. This step is performed to denoise the overbreak-underbreak curve.…”