REPROCESSING AND REINTERPRETATION OF AEROMAGNETIC AND GRAVITY DATA USING OASIS MONTAG SOFTWARE TO INTRODUCE STRUCTUR

Abstract

Geophysical Division in GEOSURV intends to reprocess and reinterpret the aeromagnetic and gravity database by using Oasis montaj software to introduce structural markers in Iraq. Structural markers, which inferred from geophysical data for the whole Iraqi territory (except the northeastern part) over the past years at scale of 1:250000, were published as series of geophysical maps. Al-Bukamal and H1 Quadrangles, sheets No. NI-37-8 and NI-37-12, respectively have been involved in this report as a map area. The map area is located within the Inner Platform, which is a part of the Arabian Plate, while the northeastern part lies within the outer Platform, Mesopotamia Foredeep. Several magnetic and gravity anomalies were identified in the map area. They were attributed to geological contacts, axes of anticlinal structures, and faults. 2D forward modeling and basement inversion processing were applied in this report. In addition, several processes and data enhancement have been applied through filtrations to distinguish in more certainty the type and to estimate the depth of the structures in the map area. Qualitative and quantitative interpretations were executed in this report. All the revealed structural markers were superimposed on the geological map so as to be of benefits for other applications.