Gravimetric network of the Eastern part of the North of Algeria

The northern of Algeria is located between the limit of the African and Eurasian plates. It is known for its geological heterogeneity. This part is experienced with few geophysical data. Among this data, the gravimetric survey can reveal several pieces of information about geological complexity. Although, before any achievement of gravimetric data, it is imperative to perform a gravimetric network. In this work, we present the full steps of implementing the gravimetric network located in the eastern part of the north of Algeria, combined with the processing in detail, using a manual method. The new gravimetric network is situated in the main area of the Guelma basin and its surrounding area (07° 00’; 08° 00 ’E and 36° 00’; 36° 45’N). This network encompasses thirty-nine gravimetric reference stations, linked to the Algerian gravity network. It forms one polygon that is built with 61 triangular loops connected to each other with 99 links. The initiation of the method used, and all stages of the gravity data are described. The average of the gap of gravity values at each station is about 11 µGal. the campaign was carried out using a terrestrial Scintrex CG3 gravimeter. The new gravimetric network of the north eastern part of Algeria is adjusted by means of the ginning method. The principal purpose of the realization of this gravimetric network is to provide a high quality for all future works with respect to the gravimetric studies in the north eastern part of Algeria.