ramp overthrust

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A simplified geological cross section of the Himalayas running north to south, showing the Ganga Basin as a foreland basin, crystalline rock overthrusting the Indian Plate, and a steep thrust fault ramp beneath the Great Himalayas, with labeled features including the Main Boundary Thrust, Main Central Thrust, ophiolites, and Kangdese granites.

ramp overthrust

geology

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mountain
Alpine- (or Himalayan-)type belts
…thrust onto it are called ramp overthrusts. When the fault first forms, it dips at 10° to 30° (or more). Slip on this fault (i.e., the movement of one face of the fault relative to the other) brings the leading edge of the off-scraped slice of crust to the surface…
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…thrust onto it are called ramp overthrusts. When the fault first forms, it dips at 10° to 30° (or more). Slip on this fault (i.e., the movement of one face of the fault relative to the other) brings the leading edge of the off-scraped slice of crust to the surface…
Read More