It can count higher than most cats.Į-mail C.E. This cat has just spotted some strike-slip fault motion. Because you have to step to the right to go from one side of the volcano to the other, this is a right-lateral strike-slip fault. This is the remains of a cinder cone that erupted along a strike-slip fault in the southern end of Death Valley, CA. If it requires a jog to the left, it was a left-lateral fault that did the offsetting. If you have to go to your right to make the connection, you have a right-lateral fault. To determine what type you've got, figure out which way a particular object, say a road or a fence, was offset by the fault motion. Strike-slip faults are either right-lateral or left-lateral. Strike slip faults involve motion in a horizontal plane: they are best spotted from the air! ![]() This makes them relatively easy to spot in a road cut or mountain side. We would contend, however, that the amount of strike-slip displacement along regional left and right-lateral fault systems related to this model is small (<10 km).Normal faults, reverse faults, and thrust faults all involve a substantial amount of vertical motion. This movement was facilitated by WNW-ESE striking, left-lateral strike-slip faulting along the northern Colorado Plateau and N-S striking, right-lateral strike-slip faulting along the SE margin of the Colorado Plateau in New Mexico. To determine what type youve got, figure out which way a particular object, say a road or a fence. This regional pattern fits a model of NE-directed motion of the Colorado Plateau during the Laramide orogeny. Strike-slip faults are either right-lateral or left-lateral. This strain pattern is consistent with other WNW-ESE striking left-lateral faults found in northern Colorado (e.g., Garmesa Fault). Strain analysis, based on slickenside striation data, indicates that sub-horizontal, WSW-ENE shortening formed the Bull Canyon-Flume Creek fault system and associated monoclines. Regional-scale monoclines splay off the Bull Canyon-Flume Creek fault. The overall fault pattern represents a strain compatible, left-lateral strike-slip, flower structure. Simple illustration of strike-slip faults at subduction zones where. Complex patterns of en echelon, small-scale structures associated with the Bull Canyon-Flume Creek fault display combinations of normal or reverse dip-slip and right-lateral or left-lateral strike-slip. Purple lines show right-lateral faults, and red lines show left-lateral faults. ![]() Both the dip direction and the sense of dip-slip change along the strike of this fault from steeply N-dipping normal-slip to steeply S-dipping reverse-slip. Northeast-southwest- and northwest- to east-southeast-trending fault systems have left and right lateral sense of movement, respectively. This structure is a WNW-ESE striking, subvertical, oblique-slip fault with a predominance of left-lateral strike-slip and lesser amounts of dip-slip. ![]() The Bull Canyon-Flume Creek fault system is one of these strike-slip structures. ![]() Laramide structures of the northern Uncompahgre Plateau form a left-lateral strike-slip fault system connected by restraining bends of monoclines and reverse faults. New USGS EDMAP-funded research has demonstrated a far more complex structural pattern. Additional NW-SE striking monoclines include the Flume Creek, Black Rocks and Ruby Canyon (new name) Monoclines. For example, the Colorado National Monument displays classic monocline and basement reverse fault structures (Redlands Fault). Previously documented Laramide structures of the northern Uncompahgre Plateau include NW-SE striking monoclines and reverse faults.
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