The role of high-precision gravimetry in detecting and monitoring recent crustal movements in view of the African situation

High precision relative gravimetry can play a dual role in the study of vertical recent crustal movemen: exploring and monitoring. A number of G-meters of LCR type have been calibrated over the full measurement range so that they can be used in almost any part of African. Recent high precision measurements in desert, tropical and subtropical zones reveal clearly that even under unfavorable climatical and transportation conditions precise gravity is available within ± 10 to 20 microgal accuracy.