The fault valley shows features suggesting a half-graben with a steep slope wall on the west and low-angle slope on the east. The fault forms a steep, prominent circa 40 metres (130 ft) high east-facing scarp on Cretaceous rocks that show initial development of triangular facets. The hanging valleys have Quaternary alluvial deposits on the western uplifted block. The scarp forms the western wall of a narrow and long valley. To the south of Bogotá, it appears that Pleistocene moraines are offset as recorded by east-facing well-preserved scarps about 3 metres (9.8 ft) high.[3]
Paris, Gabriel; Michael N. Machette; Richard L. Dart, and Kathleen M. Haller. 2000a. Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions, 1–66. USGS. Accessed 2017-09-18.
Mapsedit
Paris, Gabriel; Michael N. Machette; Richard L. Dart, and Kathleen M. Haller. 2000b. Map of Quaternary Faults and Folds of Colombia and Its Offshore Regions, 1. USGS. Accessed 2017-09-18.
January 01, 1970
usme, fault, other, uses, usme, disambiguation, spanish, falla, usme, dextral, oblique, normal, fault, department, cundinamarca, central, colombia, fault, total, length, kilometres, runs, along, average, north, northeast, south, southwest, strike, eastern, ran. For other uses see Usme disambiguation The Usme Fault Spanish Falla de Usme is a dextral oblique normal fault in the department of Cundinamarca in central Colombia The fault has a total length of 64 9 kilometres 40 3 mi and runs along an average north northeast to south southwest strike of 022 7 6 in the Eastern Ranges of the Colombian Andes Usme FaultFalla de UsmeEtymologyUsmeCoordinates04 20 03 9 N 74 12 11 2 W 4 334417 N 74 203111 W 4 334417 74 203111Country ColombiaRegionAndeanStateCundinamarcaCitiesBogotaCharacteristicsRangeEastern Ranges AndesPart ofAndean oblique faultsLength64 9 km 40 3 mi Strike022 7 6DipEastDip angleHighDisplacement1 5 mm 0 039 0 197 in yrTectonicsPlateNorth AndeanStatusActiveEarthquakesPossibly historicTypeOblique normal faultMovementDextralAgeQuaternaryOrogenyAndean Contents 1 Etymology 2 Description 3 See also 4 References 4 1 Bibliography 4 1 1 MapsEtymology editThe fault is named after Usme southern locality of the Colombian capital Bogota 1 Description editThe Usme Fault is located in the Eastern Ranges of the Colombian Andes south of Bogota and extends along the western margin of the Tunjuelo River valley 1 The fault underlies the Sumapaz Paramo 2 The fault displaces Cretaceous and Tertiary rocks as well as Quaternary alluvial and glacial moraine deposits 1 The fault valley shows features suggesting a half graben with a steep slope wall on the west and low angle slope on the east The fault forms a steep prominent circa 40 metres 130 ft high east facing scarp on Cretaceous rocks that show initial development of triangular facets The hanging valleys have Quaternary alluvial deposits on the western uplifted block The scarp forms the western wall of a narrow and long valley To the south of Bogota it appears that Pleistocene moraines are offset as recorded by east facing well preserved scarps about 3 metres 9 8 ft high 3 See also edit nbsp Colombia portal nbsp Earth sciences portal nbsp Geology portal List of earthquakes in Colombia Bogota Fault Viani Fault Eastern Frontal Fault SystemReferences edit a b c Paris et al 2000a p 48 Paris et al 2000b Paris et al 2000a p 49 Bibliography edit Paris Gabriel Michael N Machette Richard L Dart and Kathleen M Haller 2000a Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions 1 66 USGS Accessed 2017 09 18 Maps edit Paris Gabriel Michael N Machette Richard L Dart and Kathleen M Haller 2000b Map of Quaternary Faults and Folds of Colombia and Its Offshore Regions 1 USGS Accessed 2017 09 18 Retrieved from https en wikipedia org w index php title Usme Fault amp oldid 1148613286, wikipedia, wiki, book, books, library,
