TITLE:
A Comparative Structural Study of Southern Region Shallow Basement of the North-Kivu Province (DR Congo) by Gravity and Magnetic Data Analysis
AUTHORS:
Albert Mbata Muliwavyo, Jonathan Musitu Muliwavyo, Lumière Musitu, Jean-Marie Joackim Hangi Vuvuya Kataka, Jean-Marie Tshitenge Mbuebue, Clément N’Zau Umba-Di-Mbudi
KEYWORDS:
Gravity, Geomagnetic, Analytic Signal, Tilt Derivative, Horizontal Gradient
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.11 No.9,
September
15,
2023
ABSTRACT: The aim of this study is to characterize the subsoil
in the southern region of the North-Kivu
province (DR Congo). Gravity and geomagnetic data were used in this
study. Five different filters—the horizontal gradient magnitude, the
analytic signal, the tilt derivative, the horizontal derivative of tilt derivative and the tilt angle of horizontal gradient—enabled
us to delineate the gravity and magnetic anomaly sources present in the shallow subsurface of the
study area. The plains of the Rutshuru territory are dominated by sources of
weak gravity anomalies and sources of very weak magnetic anomalies located
almost in the same places. The southern part of Rutshuru territory and a large part of Masisi territory are underlain by
shallow sources of high gravity and
magnetic anomalies. Gravity and magnetic anomaly sources are almost identical
in the study area. The shallow sources of gravity and magnetic anomalies
encountered in our study area are more or less linear and connected. The numerous gravity and magnetic
lineaments present in our study region have three major directions: oriented East-West,
North-South and North-East-South-West.