Tectono-Metamorphic Deformation and Structures of Mubi-Hong Area, NE, Nigeria

Abstract

The Mubi-Hong area constitutes part of the northeast basement complex of Nigeria and has experienced tectono-metamorphic deformation distinguished into D1, D2 and D3 events. The resultant effect is production of varied ductile and brittle structures (faults, folds, mineral stretching and foliation) which trends mostly in NNW-SSE direction, with other components NNE-SSW and NE-SW. Deformation and metamorphism in the area can be described as being progressive as indicated by the varied nature of synclinal-anticlinal folds. The tensile tectonism is also responsible for the structures and subsequent emplacement of large volumes of granitoids during Pan-African (600+150Ma). A Multi directional orientation of brittle, planar and linear structures in the area suggests that the area have undergone polyphase deformation similar to those in other parts of the Nigerian basement complex.

Hydrothermal Alteration Mapping Using Landsat 8 and ASTER Data and Geochemical Characteristics of Precambrian Rocks in the Egyptian Shield: A Case Study from Abu Ghalaga, Southeastern Desert, Egypt

“…Visual observation of this image suggests lineaments are diverse in orientation but mainly trend in the NW-SE direction. The heterogeneous trends associated with lineaments within the study location are suggestive of a complex tectonic history [70]. The lineaments were concentrated in the center (at the ilmenite mine) to the south, with a high degree of fracturing and density, and the compression progressively expanded northeastward according to the results of the lineament density study (Figure 12A).…”