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Faulted southeastern side of Svyatoy Nos peninsula, Lake Baikal – active faulting shown by faceted spurs. Artificial rendering of the Albertine Rift showing four of its rift lakes A rift lake is a lake formed as a result of subsidence related to movement on faults within a rift zone, an area of extensional tectonics in the continental crust .
From left to right: Lake Upemba, Lake Mweru, Lake Tanganyika (largest), and Lake Rukwa. A rift valley near Quilotoa, Ecuador. The Ottawa-Bonnechere Graben Þingvallavatn. A rift valley is a linear shaped lowland between several highlands or mountain ranges produced by the action of a geologic rift.
The Rift Valley lakes are a series of lakes in the East African Rift valley that runs through eastern Africa from Ethiopia in the north to Malawi in the south, and includes the African Great Lakes in the south. These include some of the world's oldest lakes, deepest lakes, largest lakes by area, and largest lakes by volume.
Lake Modoc was a pluvial lake that existed during the Pleistocene in basins formed by faulting and volcanism. It covered a length of 120 kilometres (75 mi) from south of Tule Lake in California to near present-day Fort Klamath in Oregon, its waters reaching an elevation of about 1,292 metres (4,239 ft) above sea level and covering an area of about 2,839 square kilometres (1,096 sq mi) [1] with ...
Tectonic lakes are lakes formed by the deformation and resulting lateral and vertical movements of the Earth's crust. These movements include faulting, tilting, folding, and warping. Some of the largest lakes on Earth are rift lakes occupying rift valleys, e.g. Central African Rift lakes and Lake Baikal.
Lake-filled half-graben showing sedimentation dominantly from the 'hinge' margin. Four zones of sedimentation can be defined in a half-graben. The first is "escarpment margin" sedimentation, found along the major border faults bounding the half graben, where the deepest part of the basin meets the highest rift-shoulder mountains. [6]
[21] [22] Thrust faults typically form ramps, flats and fault-bend (hanging wall and footwall) folds. A section of a hanging wall or foot wall where a thrust fault formed along a relatively weak bedding plane is known as a flat and a section where the thrust fault cut upward through the stratigraphic sequence is known as a ramp. [23]
Melting glaciers formed many of the state's lakes and etched its river valleys. They also formed a number of proglacial lakes, which contributed to the state's topography and soils. Principal among these lakes was Lake Agassiz, a massive lake with a volume rivaling that of all the present Great Lakes combined.