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<p>The 2D weighted compact gravity inversion algorithm is applied to investigate tectonic lineaments in the Aegean region, with a focus on Western Anatolia. Subsurface density distributions are mapped using gravity data, and inversion results highlight significant geological discontinuities, particularly horst–graben structures. Anomalies associated with major fault zones are identified, with density variations reaching approximately 0.3&#xa0;g/cm<sup>3</sup>. Larger density contrasts are observed in regions affected by normal and reverse faulting, including the Büyük Menderes Graben Detachment Fault and the Gediz Graben Fault. To refine the interpretation of structural boundaries, the Tilt Angle (TA) method is employed on both gravity and magnetic data. This approach enables a more comprehensive assessment of subsurface features. Although detailed information about fault dips is not resolved, low-density zones extending to depths of up to 15&#xa0;km are clearly delineated beneath topographically elevated regions such as the Alaçam and Simav Mountains. The integration of inversion modeling with both gravity and magnetic TA methods provides an enhanced framework for evaluating tectonic discontinuities and the continuity of fault zones in a seismically active region.</p>

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Investigating the Western Anatolian tectonic structures using 2D weighted compact gravity ınversion technique and gravity-magnetic tilt angle methods

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Mustafa Berkay Doğan

摘要

The 2D weighted compact gravity inversion algorithm is applied to investigate tectonic lineaments in the Aegean region, with a focus on Western Anatolia. Subsurface density distributions are mapped using gravity data, and inversion results highlight significant geological discontinuities, particularly horst–graben structures. Anomalies associated with major fault zones are identified, with density variations reaching approximately 0.3 g/cm3. Larger density contrasts are observed in regions affected by normal and reverse faulting, including the Büyük Menderes Graben Detachment Fault and the Gediz Graben Fault. To refine the interpretation of structural boundaries, the Tilt Angle (TA) method is employed on both gravity and magnetic data. This approach enables a more comprehensive assessment of subsurface features. Although detailed information about fault dips is not resolved, low-density zones extending to depths of up to 15 km are clearly delineated beneath topographically elevated regions such as the Alaçam and Simav Mountains. The integration of inversion modeling with both gravity and magnetic TA methods provides an enhanced framework for evaluating tectonic discontinuities and the continuity of fault zones in a seismically active region.