Structural Investigations of Afghanistan Deduced from Remote Sensing and Potential Field Data

Hakim Saibi, Masood Azizi, Saad Mogren

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study integrates potential gravity and magnetic field data with remotely sensed images and geological data in an effort to understand the subsurface major geological structures in Afghanistan. Integrated analysis of Landsat SRTM data was applied for extraction of geological lineaments. The potential field data were analyzed using gradient interpretation techniques, such as analytic signal (AS), tilt derivative (TDR), horizontal gradient of the tilt derivative (HG-TDR), Euler Deconvolution (ED) and power spectrum methods, and results were correlated with known geological structures. The analysis of remote sensing data and potential field data reveals the regional geological structural characteristics of Afghanistan. The power spectrum analysis of magnetic and gravity data suggests shallow basement rocks at around 1 to 1.5 km depth. The results of TDR of potential field data are in agreement with the location of the major regional fault structures and also the location of the basins and swells, except in the Helmand region (SW Afghanistan) where many high potential field anomalies are observed and attributed to batholiths and near-surface volcanic rocks intrusions. A high-resolution airborne geophysical survey in the data sparse region of eastern Afghanistan is recommended in order to have a complete image of the potential field anomalies.

Original languageEnglish
Pages (from-to)978-1003
Number of pages26
JournalActa Geophysica
Volume64
Issue number4
DOIs
Publication statusPublished - Aug 1 2016

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Afghanistan
potential field
potential fields
remote sensing
power spectra
tilt
batholiths
anomalies
gravitation
gradients
rock intrusions
geological structure
basements
spectrum analysis
volcanology
anomaly
rocks
Shuttle Radar Topography Mission
airborne survey
geophysical survey

All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Structural Investigations of Afghanistan Deduced from Remote Sensing and Potential Field Data. / Saibi, Hakim; Azizi, Masood; Mogren, Saad.

In: Acta Geophysica, Vol. 64, No. 4, 01.08.2016, p. 978-1003.

Research output: Contribution to journalArticle

Saibi, Hakim ; Azizi, Masood ; Mogren, Saad. / Structural Investigations of Afghanistan Deduced from Remote Sensing and Potential Field Data. In: Acta Geophysica. 2016 ; Vol. 64, No. 4. pp. 978-1003.
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