Mapping of Morphostructural Lineaments, using Remote Sensing: A Case Study of the Txitonga Group, Lupilichi Region, Niassa Province, Mozambique
DOI:
https://doi.org/10.22456/1807-9806.145026Keywords:
Density, Morphostructural lineaments, Neoproterozoic, Copernicus, Txitonga GroupAbstract
During the Neoproterozoic tectonic event, associated with the Pan-African orogenic cycle, significant deformations occurred that culminated in the formation of the main structures present in the Lupilichi region, located in the Txitonga Group, Mozambique, with an area of approximately 2000 km2. This study carries out the mapping of morphostructural lineaments in the area, based on structural spatial analysis, correlated to local geology. Remote sensing data from and processing products from the Copernicus Digital Elevation Model (DEM) were used, which allowed manual and automatic extraction of lineaments, with a scale of 1:250,000. The analysis was in-depth using rosette diagrams, to evaluate the predominant orientation of lineaments. The results show a predominance of lineaments oriented in the NE-SW direction, with lengths varying between 2 and 16 km. The subdivision of the area into four geomorphological compartments (C1, C2, O, and P) revealed variations in lineament density, suggesting greater structural control in the transition and mountainous zones. The correlation between lineament density and geology indicates the influence of Precambrian structures, especially from the Neoproterozoic, on the current morphostructural evolution of the region.
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