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A foreland basin is a structural basin that develops adjacent and parallel to a mountain belt. Foreland basins form because the immense mass created by crustal thickening associated with the evolution of a mountain belt causes the lithosphere to bend, by a process known as lithospheric flexure.
The Magallanes Basin is a foreland basin located in southern Patagonia. The basin covers a surface of about 170.000–200.000 km 2 and has a NNW-SSE oriented shape. [9] [10] The basin evolved from being an extensional back-arc basin in the Mesozoic to being a compressional foreland basin in the Cenozoic. [11]
The Himalayan foreland basin has been divided on the basis of modern drainage divides, [2] and subsurface topography. [7] [8] Subdivisions based on drainage divides are most commonly used, with the Indus Basin reflecting the drainage area of the Indus River, and the Ganga Basin representing the drainage area of the Ganges River.
The Maracaibo Basin, also known as Lake Maracaibo natural region, Lake Maracaibo depression or Lake Maracaibo Lowlands, is a foreland basin and one of the eight natural regions of Venezuela, found in the northwestern corner of Venezuela in South America. Covering over 36,657 square km, it is a hydrocarbon-rich region that has produced over 30 ...
The Columbus Basin is a foreland basin located off the south eastern coast of Trinidad within the East Venezuela Basin (EVB). Due to the intensive deformation occurring along the Caribbean and South American plates in this region, the basin has a unique structural and stratigraphic relationship.
The Persian Gulf foreland basin and forebulge was created as a result of the collision of the Arabian and Eurasian plates around 13 million years ago. [5] The Zagros mountains that formed, as a result, created a load on the lithosphere that led to the creation of the modern-day Persian Gulf.
The Canadian Rocky Mountain foreland thrust and fold belt is a northeastward tapering deformational belt consisting of Mesoproterozoic, Paleozoic, and Mesozoic strata. The Lewis thrust sheet is one of the major structures of the foreland thrust and fold belt extending over 280 mi (450 km) from Mount Kidd near Calgary, AB in the Southeast Canadian Cordillera to Steamboat Mountain, located west ...
In a fold-thrust belt, the décollement is the lowest detachment [1] (see Fig 1.) and forms in the foreland basin of a subduction zone. [1] A fold-thrust belt may contain other detachments above the décollement—an imbricate fan of thrust faults and duplexes as well as other detachment horizons. In compressional settings, the layer directly ...