The joint study of the hydrogeological and structural aspects, resulting from the
action of neotectonic processes in the Caeté River drainage basin, allowed to
establish the morphostructural compartmentalization of the area under consideration,
as well as the definition of recharge zones, underground flow directions and
interactions between the waters from different aquifers. The analysis of the drainage
and relief elements defined that the neotectonic framework of the Caeté basin is
characterized by the presence of NW-SE normal faults intercepted by sinistral faults
in the NE-SW direction, in addition to sinistral transtensive faults NNW-SSE, sinistral
faults NNE-SSW, NW-SE, WNW-ESE and ENE-WSW and NW-SE dextral
transcurrent faults. These discontinuities present mainly in the limits of the
morphostructural blocks, configure vertical displacements that vary from 5 to 40
meters. The trative structures, NW-SE normal faults and NNW-SSE transtensive
faults, are recharge zones for deepest water bodies and act as integration routes
between surface and groundwater, and mixing between aquifer waters of different
crustal levels, and can function as conduits for the percolation of contaminants to
great depths. The direction of the shallow underground hydraulic flow is in agreement
with the flow directions of the hydrographic network and the lowering of the tectonic
blocks. Regarding the treatment and generation of data, the study used the ArcMap
10.5 software, using anaglyphs of GeoEye images and digital elevation models
generated by the Shuttle Radar Topography Mission (SRTM), with a spatial
resolution of 90 meters, and by the ALOS Palsar satellite, with a spatial resolution of
30 meters. The data obtained were stored in an information database in Geographic
Information System (GIS) environment, with the grouping of 35 layers divided into 5
thematic categories.
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