Authors :
Eli-Achille Manwana Mfumukani; Franck Tondozi Keto; Robert Muanda Ngimbi; Emmanuel Bahati Wenda; AnscaireMukange Besa; Reagan Lotutala Tazi; Olivier Muhingy Sawa-Sawa
Volume/Issue :
Volume 7 - 2022, Issue 9 - September
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3UJn1Yw
DOI :
https://doi.org/10.5281/zenodo.7114886
Abstract :
The Kasai region is an area historically
known for its wealth in minerals such as diamonds and
gold. This study aims to study the structural geology of
the northern part of the Kasai province in the D.R.
Congo in order to guide future mining and oil
prospecting. The analysis of the gravity data using the
regional-residual separation method, the vertical and
horizontal derivatives as well as the estimation of the
depth of the sources of the anomalies by the Euler
deconvolution method allowed us to identify and study
several gravity signatures that can be associated with
geological structures of economic interest. Thanks to the
results obtained, we have produced structural maps in
which all the identified geological structures have been
well defined. The northern part of this zone is occupied
by a gigantic high gravity while the southern part, for its
part, is characterized by several gravity depressions. By
analyzing the gravity maps of this area, we found that
the structure of our study area is arranged in Horst
(uplifted part in the north) and grabens (subsided part in
the south). This interpretation is all the more supported
by the fact that the anomaly contrast between these two
structures is very clear, which could indicate the
presence of a series of faults oriented in the NW-SE
direction. Several gravimetric signatures representing
structures that can promote the migration and trapping
of hydrocarbons such as faults, antiform folds and salt
domes have also been identified in this part. The
southern part of the zone is located around the Archean
rocks of the Kasaï craton which is very rich in minerals.
Negative anomalies could be associated with
diamondiferous kimberlite intrusions that are abundant
in the region while positive anomalies could reveal the
concentration of economically important metal ores.
Keywords :
gravimetry, geology, structure, mine, oil, Kasai region.
The Kasai region is an area historically
known for its wealth in minerals such as diamonds and
gold. This study aims to study the structural geology of
the northern part of the Kasai province in the D.R.
Congo in order to guide future mining and oil
prospecting. The analysis of the gravity data using the
regional-residual separation method, the vertical and
horizontal derivatives as well as the estimation of the
depth of the sources of the anomalies by the Euler
deconvolution method allowed us to identify and study
several gravity signatures that can be associated with
geological structures of economic interest. Thanks to the
results obtained, we have produced structural maps in
which all the identified geological structures have been
well defined. The northern part of this zone is occupied
by a gigantic high gravity while the southern part, for its
part, is characterized by several gravity depressions. By
analyzing the gravity maps of this area, we found that
the structure of our study area is arranged in Horst
(uplifted part in the north) and grabens (subsided part in
the south). This interpretation is all the more supported
by the fact that the anomaly contrast between these two
structures is very clear, which could indicate the
presence of a series of faults oriented in the NW-SE
direction. Several gravimetric signatures representing
structures that can promote the migration and trapping
of hydrocarbons such as faults, antiform folds and salt
domes have also been identified in this part. The
southern part of the zone is located around the Archean
rocks of the Kasaï craton which is very rich in minerals.
Negative anomalies could be associated with
diamondiferous kimberlite intrusions that are abundant
in the region while positive anomalies could reveal the
concentration of economically important metal ores.
Keywords :
gravimetry, geology, structure, mine, oil, Kasai region.
