Lineaments Extraction of the Gaara Area Using Directional Filters

Authors

  • Cristina Dallos Mosquera Geology Department, Faculty of Exact and Natural Sciences, University of Caldas, Manizales, Colombia Author
  • Ahmed Abbas Hasan Remote Sensing Department, College of Remote Sensing and Geophysics, AlKarkh University of Science, Baghdad, Iraq Author
  • Jawad Ali Zwain Geology Department, College of science, Baghdad University, Baghdad, Iraq Author
  • Mariam Issam Hasan Ministry of Higher Education and Scientific Research, Scientific Research Commission, Baghdad, Iraq Author

Abstract

This research employs remote sensing techniques to conduct a structural analysis of the Ga'ara region in Iraq's Western Desert. The investigated area spans approximately 10,534 km², bound by the coordinates 33°15'–33°50' N and 39°15'–41°00' E.

The objectives of this study are to demarcate and interpret fracture lineaments. Landsat ETM+ images and DEM data are used in this study. Lineament interpretation, mapping, and quantitative analysis (including length and frequency calculations) were performed through digital processing of Landsat data using a suite of specialized software.

Directional Gradient-Sobel and Gradient-Prewitt filters were applied to interpret linesaments. The study reveals that there were two principal orthogonal fracture systems each of which comprises two sets. Assuming Linear features were enhanced and interpreted using directional Sobel and Prewitt filters. The analysis identified two principal, nearly orthogonal fracture systems: a dominant NW-SE trend and secondary trends oriented NE-SW, N-S, and E-W.

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Published

2026-05-01

Issue

Vol. 1 No. 1 (2026): Advances in Petroleum Geology, Geophysics, and Geospatial Technologies

Section

Articles