Forebulge
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In geology, a forebulge is a flexural bulge in front as a result of a load on the lithosphere, often caused by tectonic interactions and glaciations. An example of forebulge can be seen in the Himalay
View of the Persian Gulf with the Zagros Mountains whose load on the lithosphere helped to form the Gulf.
The Ganges Basin seen next to the Himalayas whose load on the lithosphere helped to create the basin.
Forebulge can be seen here in the Mariana Trench where the Pacific plate is subducted.
Chesapeake Bay is one area currently experiencing a rise in sea level due to post-glacial rebound.
Isostasy
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Isostasy or isostatic equilibrium is the state of gravitational equilibrium between Earth's crust and mantle such that the crust "floats" at an elevation that depends on its thickness and density. Thi
Forebulge
…of the depression height caused by the load. It takes roughly 10,000 to 20,000 years for forebulge to fully develop when the mantle flexure to reach isostatic equilibrium, a process that is controlled by mantle viscosity. Forebulge can be seen during the formation of a mountain range, which creates a large…
Airy isostasy applied to a real-case basin scenario, where the total load on the mantle is composed by a crustal basement, lower-density sediments and overlying marine water
Cartoon showing the isostatic vertical motions of the lithosphere (grey) in response to a vertical load (in green)