La Dina Fault
La Dina Fault | |
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Falla La Dina, El Agrado-Betania Fault | |
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Coordinates | 02°55′52″N 75°25′36″W / 2.93111°N 75.42667°WCoordinates: 02°55′52″N 75°25′36″W / 2.93111°N 75.42667°W |
Country | ![]() |
Region | Andean |
State | Huila, Tolima |
Characteristics | |
Range | Central Ranges, Andes |
Part of | Andean oblique faults |
Length | 206.9 km (128.6 mi) |
Strike | 032.9 ± 13 |
Dip | West |
Dip angle | 40-60 |
Displacement | 0.2–1 mm (0.0079–0.0394 in)/yr |
Tectonics | |
Plate | North Andean |
Status | Inactive |
Type | Oblique thrust fault |
Movement | Dextral reverse |
Rock units | Honda Gp., , Olini Gp., |
Age | Quaternary |
Orogeny | Andean |
La Dina Fault (Spanish: Falla La Dina) is a regional dextral oblique thrust fault in the departments of Huila and Tolima in southwestern Colombia. The fault has a total length of 206.9 kilometres (128.6 mi) and runs along an average northeast to southwest strike of 032.9 ± 13 in the and the Central Ranges of the Colombian Andes.
Description[]
La Dina Fault lies east of La Plata Fault in southwestern Colombia. The fault displaces Jurassic (), Cretaceous ( and Olini Groups), and Tertiary (Honda Group) sedimentary rocks, which are common in the . Local names assigned to the southern extension of this fault are from north to south: Betania, Pital-Agredo and Magdalena.[1] It is also called the El Agrado-Betania Fault in Huila, where it underlies the .[2] The fault is marked by well-developed trace, abrupt slope changes, saddles, and small scarps.[1]
See also[]
References[]
Bibliography[]
- Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions, 1–66. USGS. Accessed 2017-09-18. ; ; , and . 2000a.
Maps[]
- Mapa Geológico del Huila 1:300,000, 1. INGEOMINAS. Accessed 2017-09-21. , and . 2001.
- Map of Quaternary Faults and Folds of Colombia and Its Offshore Regions, 1. USGS. Accessed 2017-09-18. ; ; , and . 2000b.
- Seismic faults of Colombia
- Thrust faults
- Strike-slip faults
- Inactive faults
- Geography of Huila Department
- Geography of Tolima Department
- Magdalena River