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Locality map showing the Rio Grande rift extending from southern Colorado to Chihuahua, Mexico. The Rio Grande follows this rift for much of its course. The Rio Grande rift is a north-trending continental rift zone. It separates the Colorado Plateau in the west from the interior of the North American craton on the east. [1]
Shaded relief map of the Llano Estacado. Texas contains a wide variety of geologic settings. The state's stratigraphy has been largely influenced by marine transgressive-regressive cycles during the Phanerozoic, with a lesser but still significant contribution from late Cenozoic tectonic activity, as well as the remnants of a Paleozoic mountain range.
Red Sea Rift: Red Sea: Rift zone: Reigolil-Pirihueico Fault: Andes: Rhine Rift Valley: Germany and France: Rift zone: Active: 1356 Basel (M6 to 7) Rio Grande Rift: Rio Grande Valley, United States and Mexico: Rift zone: Romeral Fault System: 700: Colombia: Thrust and strike-slip: Active: 1983 (M5.5), 1999 (M6.2) Sagami Trough: 340: Off the ...
] Fault or Balcones Fault Zone is an area of largely normal faulting [1] in the U.S. state of Texas that runs roughly from the southwest part of the state near Del Rio to the north-central region near Dallas [2] along Interstate 35. The Balcones Fault zone is made up of many smaller features, including normal faults, grabens, and horsts. [3]
Map of the part of the region in Texas. Red is the core; pink represents the counties sometimes included in the region. Active Permian Basin pumpjack east of Andrews, TX Aerial view of oil fields of the Permian Basin in Ward County, TX. Due to its economic significance, the Permian Basin has also given its name to the geographic region in which ...
The Long Point–Eureka Heights fault system is a system of geologic faults in Houston, Texas. It runs beneath the metropolitan area from the southwest to the northeast. The various faults are characterized as normal faults, meaning that the downthrown side is in the direction of the dip of the fault plane.
Magnetic potential map of the Reelfoot Rift The New Madrid seismic zone (NMSZ), sometimes called the New Madrid fault line (or fault zone or fault system ), is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate ) in the Southern and Midwestern United States , stretching to the southwest ...
A seafloor map will show a rather strange pattern of blocky structures that are separated by linear features perpendicular to the ridge axis. If one views the seafloor between the fracture zones as conveyor belts carrying the ridge on each side of the rift away from the spreading center the action becomes clear.