Ramp basin explained

A ramp basin is a geological depression bounded by a pair of opposite-facing reverse faults or thrust faults. In rifting, the equivalent structure is a graben, although the bounding faults are normal rather than reverse in type.^[1] Examples of this type of basin include the Cul-de-Sac depression in Haiti^[2] and Issyk-Kul in the Tian Shan mountains in Kyrgyzstan.^[3]

Notes and References

1. Cobbold P.R. . Davy P. . Gapais D. . Rosello E.A. . Sadybakasov E. . Thomas J.C. . Tondji Biyo J.J. . de Urreiztieta M. . 1993 . Sedimentary basins and crustal thickening . Sedimentary Geology . 86 . 1–2 . 77–89 . 10.1016/0037-0738(93)90134-Q.
2. Saint Fleur N. . Feuillet N. . Grandin R. . Jacques E. . Weil-Accardo J. . Klinger Y. . 2015 . Seismotectonics of southern Haiti: A new faulting model for the 12 January 2010 M7.0 earthquake . Geophysical Research Letters . 42 . 23 . 10,273–10,281 . 10.1002/2015GL065505. free .
3. Vermeesch P. . Poort J. . Duchkov A.D. . Klerkx J. . De Batist M. . 2004 . Lake Issyk-Kul (Tien Shan): Unusually low heat flow in an active intermontane basin . Russian Geology and Geophysics . 45 . 5 . 616–625.