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Two morphometric approaches are applied on the Sukri River’s watersheds to study their tectonic activeness. Based on Analytic Hierarchic Process (AHP) and Index of Active Tectonics (IAT) studies, sub-watershed 1 (SW1) and 2 delineated are highly active tectonically, SW6 and 7 are moderately active, and SW5 shows a low tectonic activeness. Both approaches reaching common results confirm the morphological findings of this study. Bathymetry (topographic) and gravity variation in the Sukri basin are studied. The results clearly show a height variation within 200–1600 m, with a 1400 m upward continuation and no specific elevation trend. Several depressions can be seen within the region because of the available graben. The gravity contour plot in the Sukri basin also shows no particular trend similar to the topographic map. The gravity values within the region vary from − 10 to 80 mGal. The difference between high and low gravity anomalies is ~ 90 mGal could be possible because of grabens. We also estimated bathymetry gravity, which is a function of bathymetry and estimated their percentage deviation (PD). The obtained result of PD shows its deviation varies from -400 to 1200% within the region.

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Geomorphic and Geophysical Studies from the Sukri River Watersheds, Rajasthan, India

  • 章节

  • 发表日期：

    2025年

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  • Adrija Raha,
  • Kutubuddin Ansari,
  • Soumyajit Mukherjee

摘要

Two morphometric approaches are applied on the Sukri River’s watersheds to study their tectonic activeness. Based on Analytic Hierarchic Process (AHP) and Index of Active Tectonics (IAT) studies, sub-watershed 1 (SW1) and 2 delineated are highly active tectonically, SW6 and 7 are moderately active, and SW5 shows a low tectonic activeness. Both approaches reaching common results confirm the morphological findings of this study. Bathymetry (topographic) and gravity variation in the Sukri basin are studied. The results clearly show a height variation within 200–1600 m, with a 1400 m upward continuation and no specific elevation trend. Several depressions can be seen within the region because of the available graben. The gravity contour plot in the Sukri basin also shows no particular trend similar to the topographic map. The gravity values within the region vary from − 10 to 80 mGal. The difference between high and low gravity anomalies is ~ 90 mGal could be possible because of grabens. We also estimated bathymetry gravity, which is a function of bathymetry and estimated their percentage deviation (PD). The obtained result of PD shows its deviation varies from -400 to 1200% within the region.