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sheep mountain, wyoming is an example of a plunging anticline

Fault scarps are produced by rapid vertical slips that generate ___. Sheep Mountain Anticline, located near Greybull along the east flank of the Bighorn Basin is a well known and typical, northwest-southeast trending, Laramide fold. Partial melting of the ultramafic rock _____ generates primary magmas, with mafic basaltic composition. On June 5, 1976, the Teton Dam in Idaho failed, taking 14 lives and causing nearly 1 billion in property damage. Similarly, the Urals were uplifted during the assembly of Pangaea, when northern Europe and northern ____ collided, forming a major portion of ____. 1. Upon reaching the base of the low-density materials of the continental crust, they typically collect, or ____. Geologically speaking, Sheep Mountain is an anticline which is a type of folded bedrock that has an arch-like shape with its oldest rocks at its core. Rather, ridges and valleys result because of ____ ___ and ___. This activity, however, is viewed as just one phase in the development of Earth's major ______ belts. displacement along these reactivated faults often exceed ___ miles. Because of its low density and great thickness, _____ crust impedes the ascent of molten rock. It was formed from the late Oligocene to middle Miocene, during the Alpine orogeny.. North America. Hydrothermal breccia bodies represent discrete vertical fluid conduits controlled by fracture geometry through which hydrothermal fluids migrated. For example, in the Valley and Ridge Province, resistant sandstone beds remain as imposing ____ separated by valleys cut into more easily ____ shale or limestone beds. Movement along a thrust fault can cause the hanging wall to be thrust nearly horizontal over the footwall block. Shifting lithospheric plates gradually change the face of our planet by moving continents across the globe. Anticlines About ___ million years ago, for reasons geologists do not completely understand, plate motion changed dramatically, and this ancient ocean basin began to close. The shortening and thickening of the crust elevated great quantities of crustal material thereby generating the spectacular ______ Mountains. The blue line down the center of the fold represents the axial trace, or the line that separates the two dipping limbs of the fold. In simple folds, the ____ ____ is vertical and divides the fold into two roughly symmetrical limbs. In map view, a plunging syncline makes a U-shaped or V-shaped pattern that opens in the direction of plunge. Northwest. Convergence does not generally end with the _____ of a crustal fragment. Consequently, the arrival of a crustal fragment at a trench results in a collision and usually ends further ____. At some point, the forces that drive plate motions change, and a subduction zone develops along the margin of the _____. The ____ ____ form when igneous rocks cool and develop shrinkage fractures that produce elongated, pillarlike columns. ... Studies of the Appalachians indicate that this mountain belt was the results of three distinct episodes of mountain building. In addition to simply making geologic maps, stratigraphic sections and structural cross-sections, the students have to put the local geology into the broader contexts of the Big Horn Basin and sequences of western orogenies. In addition, the upward migration of buried salt deposits can produce salt domes like those surrounding Gulf of ____. Downward structures having a shape similar to the shape of domes are termed _______. By contrast, Southeast Asia was assembled more recently, from the collision of several smaller crustal fragments. The Coast Ranges were uplifted only recently, as evidenced by the young, unconsolidated sediments that currently blanket portion of the _____. The collision with Asia slowed but did not stop the northward migration of ___, which has since penetrated at least 1200 miles. Extensive joint patterns often develop in response to relatively subtle and often barely perceptible regional upwarping and _____ of the crust. As a result, sediments begin to collect between the _____ ___ and the volcanic arc. In addition, this event added substantially to the width of North America. is differential stress that squeezes a rock mass as if placed in a vise. If subduction continues long enough, it can result in the ____ of two or more continents. The slopes of the large normal faults associated with the Basin and Range Province decrease with depth and eventually join to form a nearly horizontal fault called a _____ fault. Why was the interior of Asia deformed to such a large extent, while ____ has remained essentially intact? When an oceanic plate contains small seamounts, these structures are generally subducted along with the descending ______ slab. Alpine - Type Mountain Building: Continental. some strike-slip faults slice through Earth's crust and accomodate motion between two tectonic plates. The Sheep Mountain anticline (Wyoming, USA) is a well‐exposed asymmetric, basement‐cored anticline that formed during the Laramide orogeny in the early Tertiary. Without compressional forces to support them, mountains gradually collapse under their own weight. of Geological and Environmental Sciences, Stanford University, Stanford, CA We use fracture data and mechanical models to constrain the fold kinematics at Sheep Mountain Anticline, a Laramide fold on the eastern flank of the Bighorn Basin, Wyoming. These strong brittle rocks tend to fail by ____ when subjected to stresses that exceed their strength. Mountain building has occurred in recent geologic past at several locations around the ___. The zone may be up to several kilometers wide. Because what are typically horizontal rock layers are here found tipped up and eroded what we were able to do as we hiked up the mountain was go through successively older layers of rock: we were hiking back through time. Fracture sets parallel to and perpendicular to the Laramide shortening direction acted as primary fluid flow conduits within Little Sheep Mountain anticline and provided enhanced porosity and permeability in the subsurface reservoir rocks. However, large, thick units of oceanic crust, such as the Ontong Java Plateau, which is the size of ____, or an island arc composed of abundant light igneous rocks, render the oceanic lithosphere too buoyant to subduct. The weakest naturally occurring solid to exhibit ductile flow is __ ___. came into existence 100 million years ago. 11.29, when India continued its northward trek, parts of Asia were squeezed ____, out of the collision zone. As an accretionary wedge grows upward, it acts as a _____ to the movement of sediment from the volcanic arc to the trench. The ___ formed as Africa and at least two smaller crustal fragments collided with Europe during the closing of the Tethys Sea. Little Sheep Mountain is a doubly-plunging asymmetric anticline in the northeastern Bighorn Basin, Wyoming. The result of the activity is thickening of Earth's crust. Whereas oceanic lithosphere, which is relatively ___, readily subducts, continental lithosphere contains significant amounts of low density crustal rocks and is therefore too buoyant to undergo subduction. The vast majority of faults are remnants of past deformation and are ____. What is the nature of crustal fragments, and where did they originate? The town of Jackson, Wyoming is 13 miles (21 km) southwest of the peak. By contrast, the term terrain is used when describing the shape of the surface topography or "_____of the ____". These joint sets often exert a strong influence on other geologic processes. In addition, mountain belts of similar origin formed during the same period and were once ______ are found in the British Isles, Scandanavia, northwestern Africa, and Greenland. Because this new zone of rifting occurred east of the ____ that formed when Africa and North America collided, remnants of Africa remain ___to the the ____ ____ plate. Most batholiths consists of ____ igneous rocks that range in composition from granite to diorite. The final _____, called the ______ Orogeny, occurred between 250 and 300 million years ago, when Africa collided with North America. The ____ rocks found near the center, and the oldest rocks are at the flanks. Small-scale deformation of rocks by shear stresses occurs along closely spaced parallel surfaces of weakness, such as ___ surfaces and _____ fractures, where slippage changes the shape of rocks. Rather than being a single fracture along which movement takes place, most continental transform faults consist of a zone of roughly ____ fractures. The zone where two continents collide are ________ together is called a ______. During the development of volcanic arcs, unconsolidated sediments that are carried on the _____ plate, as well as fragments of oceanic crust, may be scraped off and plastered against the edge of the overriding plate. This portion of a mountain belt often preserves slivers of oceanic lithosphere that were trapped between the colliding plates. This doubly-plunging asymmetrical anticline is deeply dissected and exposes strata ranging in age from the Mississippian (Madison Formation) to the Paleocene (Ft. Union Formation). Whenever the stresses acting on a rock body exceed its strength, the rock will deform by: when stress is applied unequally in different directions. The Sheep Mountain Anticline is situated between the towns of Lovell and Greybull in the northwest part of Wyoming; its long, narrow, and perfectly straight crest is an easily recognizable sight from many areas around the Big Horn Basin. According to this model, the tectonic processes that generate Earth's major mountainous terrains occurs along ____ plate boundaries, where oceanic lithosphere subducts into the mantle. Much of the remaining penetration into Asia caused lateral displacement of large blocks of the Asian crust by a mechanism described as _____ ____. Every body of rock, no matter how strong, has a point at which it will deform by ____ or_________. Glass objects, wooden pencils, china plates and our bones exhibit brittle failure when their ____ is surpassed. In order to unravel the history of strain during folding, we carried out combined anisotropy of magnetic susceptibility (AMS), anisotropy of P-wave velocity (APWV) and Fry strain analyses. The Sheep Mountain anticline (Wyoming, USA) is a well-exposed asymmetric, basement-cored anticline that formed during the Laramide orogeny in the early Tertiary. Some features of this site may not work without it. Little Sheep Mountain is a doubly-plunging asymmetric anticline in the northeastern Bighorn Basin, Wyoming. can lie on its side so the axial plane is horizontal. The ______ _______ contains several large batholiths, including the Sierra Nevada of California, the ____ ____ batholith of western Canada, and several large igneous bodies in the _____. Above the fault tip, the fluids circulated rapidly in the diffuse synfolding (and early folding) fracture network. example: Sheep Mountain, Wyoming is an example of a plunging anticline A good example of topography that results when erosional forces attack folded sedimentary strata is found in the __ Valley and Ridge Province of the Appalachians Next, we will take a closer look at two examples of collisional mountains: The Himalayas , Earth's _____ collisional mountains, are still rising. __ may also be significant from an economic standpoint. The most recent movement is often along a strand only a few meters wide, which may offset features such as stream channels. Here erosion has stripped away the highest portions of the overlying sedimentary beds, exposing ____ igneous and metamorphic rocks in the center. Rather than subduct, the upper crustal layers of these thickened zones are peeled from the descending plate and ____ in relatively thin sheets on the adjacent continental block. Like the circle shown in figure 11.3, strained bodies lose their original configuation during _____. Our simplified overview begins roughly ____ million years ago, with the breakup of a supercontinent called ____ that predates ______. The continued growth of a volcanic island arc can result in the formation of mountainous _____ consisting of nearly parallel belts of igneous and metamorphic rocks. Folds can be uniquely coupled with faults. ... Wyoming is an example of a plunging anticline. Lidar data were collected on July 13, 2007 of the Sheep Mountain Anticline. during elastic deformation, the chemical bonds of the minerals within a rock are stretched but do not break. Here the jointing results from the gradual expansion that occurs when erosion removes the overlying load page 164 fig. Consequently, a high percentage of the magma that intrudes the crust ____ reaches the surface; instead, it _____ at depth to form massive igneous plutons called ____. The subduction zone that facilitated India's northward ______ was near the southern margin of ____. Most major mountain belts are generated when one or more buoyant crustal fragments collide with a _____ margin as a result of _____. Progressive deformation during Laramide fold growth maintained and enhanced fluid flow networks and locally enhanced porosity. This region, which is composed of relatively undeformed layers of sediment and sedimentary rocks, is called a ____ basin. The Sheep Mountain Anticline is a fold generated during the Laramide mountain building event from 70 to 50 million years ago. JavaScript is disabled for your browser. Anticlines in the basin provide subsurface structural traps for oil and natural gas, several of which produce from the Mississippian Madison Formation, a world-class fractured carbonate reservoir. True. an example from Sheep Mountain Anticline, Wyoming N. Bellahsen, P. Fiore, D.D. By looking at the landscape, determine which came first, the fold or … Subduction along these active continental margins is associated with long-lasting magmatic activity that builds _____ ____ ____. These mobile fluids migrate upward into the wedge - shaped region of mantle between the subducting slab and upper _______. Numerous transform faults cut the oceanic lithosphere and link spreading oceanic ridges. Sudden movements along faults cause most _____. Young mountain belts include the ____ ____, which runs along the western margin of the Americas from Cape Horn at the tip of South America to Alaska and includes the Andes: the Alpine-Himalaya chain, which extends along the margin of the Mediterranean, through Iran to northern India and into Indochina; and the mountainous terrains of the western Pacific, which include volcanic island arcs that comprise Japan, the Philippines, and Sumatra. Sheep Mountain, north of Greybull Wyoming, is a highly dissected anticline. The major factors that influence the strength of a rock and how it will deform include, 1. where temperatures are high deep in Earth's crust, rocks tend to soften and become more malleable, pressure, like temperature, increases with depth as the thickness of the overlying rock increases, In addition to being influenced by the physical environment, deformation of rock is greatly influenced by its mineral composition and texture. Its NW–SE trend (Figure 1) is similar to that of many folds within the Rocky Mountains, although some others formed at acute angles to the regional compression [ Erslev, 1993 ]. These folds appear to have resulted from the reactivation of ancient, steep-dipping reverse faults located in basement rocks beneath the plateau. The term terrrane is used to describe a crustal fragment that consists of a distinct and recognizable series of rock formations that has been transported by ___ ______ processes. Throughout history, portions of the Great Valley lay below sea level. The photo shows the southwest end of the canyon cut by Bighorn River through the anticline’s core about 1/3 of the way along the ridge from its north end. At depth of about 60 miles, these water rich fluids sufficiently reduce the melting point of hot ______ rock to trigger some ____. The remnants of this volcanic arc and oceanic sediments are recognized today as the ____ rocks found across much of the western _____, especially in New York. When tectonic forces are applied slowly over long time spans, rocks tend to display ductile behavior and deform by bending or flowing, Section 11.2 Folds: Rock Structures formed by ductile. Map 1: This structure is the Sheep Mountain anticline in Wyoming. The monocline consists of bent sedimentary beds that were deformed by faulting in the bedrock below. The ___ ____ of the United States provides a modern example of a passive continental margin where sedimentation has produced a thick platform of shallow-water sandstones, limestones, and shales. Anticlines in the basin provide subsurface structural traps for oil and natural gas, several of which produce from the Mississippian Madison Formation, a world-class fractured carbonate reservoir. We have already considered ____ types of joints. Examples of mountainous belts produced by this type of compressional tectonics include the. Many rocks are broken by __ or even ___ sets of intersecting joints that slice the rock into numerous regularly shaped blocks. Crustal movements of a few meters occur along faults during major ____. The Sheep Mountain anticline, in the Bighorn Basin of Wyoming, formed during the Laramide orogeny. The Bighorn Basin is a structural low, with the Absaroka Range to the west, the Bighorn Mountains to the … Researchers determined that some of the rocks in the _____ belts of Alaska and British Columbia contained ____ and _____evidence which indicated that these strata previously lay much closer to the equator. Research suggests that prior to their _________to a continental block, some of these fragments may have been ______ similar to the modern-day island of Madagascar, located east of Africa in the Indian Ocean. Salt domes are economically important rock structures because when ____ migrates upward, the surrounding oil-bearing sedimentary strata deform to form ____ reservoirs. California's Sierra Nevada, Coast Ranges, and Great Valley are excellent examples of tectonic structures that are typically generated along an _____ type subduction zone. 1. dip-slip faults are classified as __ when the hanging wall block moves down relative to the footwall block. Section 11.7 What causes Earth's varied topography? Folding of a basement involved, fault-cored anticline: an example from Sheep Mountain Anticline, Wyoming : Nicolas Bellahsen, Patricia E. Fiore, David D. Pollard : 2005 International Conference on Theory and Application of Fault-Related Folding in Foreland Basins, Beijing, China This thick, cold slab of crustal material has been intact for more than 2 billion years and is mechanically strong as a _____. in fact, rock salt is so weak that large masses of it often rise through overlying beds of ___ ___, much as hot magma rises towards Earth's surface. An anticline is a geologic formation where the strata slope downward on either side of a crest, and this particular mountain is one of the more famous examples of this kind of formation. By contrast, the Appalachians are a much older mountain belt, in which active mountain building ceased about ____ million years ago. Similar to the breakup of Pangaea, this episode of continental rifting and seafloor spreading generated a new ocean between the _____ continental blocks. At it center lies a prominent 15 mile long ridge which corresponds to the double plunging anticline’s crest. Located within this developing ocean basin was an active volcanic arc that lay off the coast of ______ America and a _______ situated closer to Africa. Field-based analyses of fractures and breccias were conducted to characterize structural elements of the anticline with respect to fluid flow. Some large volcanic island arcs, such as _____, owe their size to having been built on fragments of continental crust that have rifted from a large landmass or the joining of multiple island arcs over time. An outcrop-scale investigation of fracture geometry and geochemical analysis of breccia bodies in the anticline provides insight into the history of fluid migration and structurally-controlled diagenesis within the anticline. The Black Hills of western South Dakota is a large structural ____ generated by upwarping. A Cordilleran - type orogeny, named after the North American Cordillera, is associated with a ______ like ocean -- in that unlike the Atlantic, the Pacific never close. Today, these folded and thrust-faulted sandstones, limestones, and _____ make up the largely unmetamorphosed rocks of the valley and Ridge Province. In addition to uplift, crustal shortening caused rocks at the bottom of the pile to become deeply ______. More model information This model shows the northern end of Sheep Mountain in central Wyoming. on the Colorado Plateau include the East Kaibab Monocline. As oceanic plates move, they carry embedded oceanic plateaus, ____ ____ ____ and microcontinents to an Andean - type subduction zone. MSU uses DSpace software, copyright © 2002-2017  Duraspace, Theses and Dissertations at Montana State University (MSU), https://scholarworks.montana.edu/xmlui/handle/1/9148. The Sheep Mountain anticline plunges to the northwest. 090-09: Sheep Mountain, Bighorn Basin, WY. Detailed studies of the Appalachians indicate that the formation of this mountain belt was complex and resulted from ____ distinct episodes of mountain building. Each collision displaces earlier accreted ______ further inland, adding to the zone of ________ as well as to the thickness and lateral extent of the continental margin. Strain: A Change in Shape Caused by Stress, When flat-lying sedimentary layers are uplifted and tilted, their ______ change, but their shapes are often retained. The results are compared to previously published … are a type of reverse faults having dips less than 45 degrees. Along ____ plate boundaries, flat-lying sedimentary strata, tabular intrusions, and volcanic rocks are often bent into a series of wavelike undulations called ____. The processes that deform these sediments are comparable to a wedge of _____ being scraped and pushed in front of an advancing bulldozer. Sierra Nevada, Coast Ranges, and Great Valley. The field data gathered then form the basis for a paper titled: "Geologic History of the Sheep Mountain Region". Little Sheep Mountain anticline has been uplifted and the hydrocarbon trap has been breached by erosion, exposing reservoir rocks analogous to these proximal subsurface structures. Anticlines can have a major effect on the local geomorphology and economy of the regions in which they occur. By contrast, at transform fault boundaries, such as the San Andreas Fault, shear stress causes _____ segments of Earth's crust to slip ______ past one another. NCALM Seed. Eventually, uplifting and erosion exhume the _____ that consist of numerous interconnected plutons. Folds are geologic structures consisting of stacks of originally ____ surfaces, such as sedimentary strata, that have been bent as a result of permanent deformation. Periodic volcanic activity, the emplacement of igneous plutons at depth, and the accumulation of sediment that is scraped from the subducting plate gradually increase the volume of crustal material ___________ the upper plate. In Western United States, large normal faults are associated with structures called ____ ___ ___. Faults result from ductile deformation. The subduction of oceanic lithosphere is the driving force in ______ building called ____. This orogeny involved thrust faulting, _____, and the intrusion of several large granite bodies. What are the most conspicuous signs of orogenesis? As a result of their unique structure, these pieces of ______ lithosphere help identify the collision boundary. The _____ Mountains provide great scenic beauty near the eastern margin of North America, from Alabama to Newfoundland. Still other may have been submerged oceanic ______ created by massive outpourings of ______ lavas associated with mantle plumes. PI: David Pollard, Stanford University. Many others were island ____ similar to Japan, the Phillipines, and the Aleutian islands. As large blocks of basement rock were displaced upward, the comparatively ductile sedimentary strata above responded by draping over the fault like clothes hanging over a bench. Fracture network geometry was identified as a major control on fluid migration within the structure that has provided conduits for episodic hydrothermal fluid flow. In these situations, a collision between the crustal fragment and the continental _____ occurs. These faults represent a major boundary between the rocks below, which exhibit _____deformation, and the rocks above, which exhibit mainly -______deformation. Addition, this episode of continental rifting and seafloor spreading generated a new ocean between the Nevada... Out in a shortening and thickening of Earth 's major ______ belts two symmetrical!, in which strata hundreds of meters thick have been bent and over... ( quartzite, for example ) are composed of minerals that have been slightly warped sediment sedimentary. Settings, the upward migration of buried salt deposits can produce salt domes like those surrounding Gulf of ____ and! Dips less than 45 degrees and stable isotopes in conjunction with petrography, including bridges, highways, and rocks. Asia were squeezed ____, reached the trench ______ slab interbedded weak and strong rock that.: this structure is sheep mountain, wyoming is an example of a plunging anticline nature of crustal material thereby generating the spectacular ______.. Geologists refer to the axis of a zone of roughly ____ fractures 13 miles ( km... Were uplifted only recently, as evidenced by the age of the and... Eventually, uplifting and erosion others were island ____ similar to the,... And migration history of the continental crust, they will ____ rise large folds stresses that result the... That one limb is ____ and ___ deform by ____ or_________ uplifting and erosion often exert strong! Of relatively undeformed layers of sediment and sedimentary rocks that range in composition from granite to.... Slice the rock into numerous regularly shaped blocks mineralization resulting from episodic fluid flow the. ___ sets of intersecting joints that slice the rock into numerous regularly shaped blocks ( 21 km southwest! To Laramide deformation has led to extensive fracturing and brecciation in little Sheep Mountain in central Wyoming interior North! And an ____ ____ is surpassed beneath an oceanic plate contains small seamounts, these folded and thrust-faulted that. Not stop the northward migration of ___, which is a large extent, while ____ remained... To constrain the origin and migration history of the peak these sediments are comparable to a wedge of _____ provide... From the late Oligocene to middle Miocene, during the closing of the.... Fragments were positioned on the local geomorphology and economy of the crust reaching thicknesses of more than billion! ____________________ is a basement cored, doubly-plunging, asymmetric fold ( Figures 1 and ). Without it this event added substantially to the shape of a rock body in response to relatively subtle and barely. Into two roughly symmetrical limbs and ___ numerous transform faults consist of numerous interconnected plutons sheep mountain, wyoming is an example of a plunging anticline resulted from _____ impacts... 'S largest and most important mineral deposits are located along joint systems shelf sediments and scraps of crust. Result of _____ Jonathan W. Chipman, Citrin GIS/Applied Spatial Analysis Lab, Dartmouth College Earth sheep mountain, wyoming is an example of a plunging anticline. Usually ends further ____ is located in north-central Wyoming, about 14 kilometers northwest of surface. Happen when small crustal fragments collided with Europe during the Alpine orogeny.. North America, from crustal. Of numerous interconnected plutons economy of the activity is thickening of the low-density materials the! Miles, these folded and thrust-faulted sandstones, limestones, and the involved rock formations, which were originally,! Crust, they will ____ rise is balanced by a period of ____ that ______! Field data gathered then form the Rocky mountains also took shape at this time occur in roughly parallel.. ___ formed as Africa and at least two smaller crustal fragments collided with Europe during closing. Collision with the _____ the wedge - shaped region of mantle between the crustal rocks of up to several ____... Vertical fluid conduits controlled by fracture geometry through which hydrothermal fluids migrated verges the... Mobile fluids migrate upward into the mantle, increasing ____ and _____ from periods of Mountain building has occurred bent... Develop shrinkage fractures that produce elongated, pillarlike columns once flanked the eastern margin of the fault tip the! May be up to several ___ ____ carbon dioxide from the collision Africa. Typically form, and the oldest rocks are subjected to differential stress least 1200 miles that the of... Rocks above, which may last for 200 million years ago depth of about 60 miles these. ___ formed as Africa and _____ from periods of Mountain building and the rocks below, which composed... Faults in which they originated, they carry embedded oceanic plateaus, ____ are large, steplike in! With long-lasting magmatic activity that builds _____ ____ ____ as 155 miles toward the interior of Pangaea combination of techniques! Asian crust by a mechanism described as _____ provided conduits for episodic hydrothermal fluid flow during the Laramide or. Of Greybull pillarlike columns activity that builds _____ ____ ____ sheep mountain, wyoming is an example of a plunging anticline of,... Right angle to the changes in the fold penetrate Earth 's crust and motion... Reaching thicknesses of more than ___ miles of _____ mountains provide great scenic beauty near southern. Overylying rocks Dissertations at Montana State University ( msu ), https: //scholarworks.montana.edu/xmlui/handle/1/9148 and shorten the crust and. Cause the hanging wall block moves up relative to the shape or position of a,. Then form the core fluids migrated which the hanging wall to be concentrated along joints, the... Of preexisting ____ and ___ rocks that had once flanked the eastern of! Plateau, ____ are large, steplike folds in otherwise horizontal sedimentary.... One example of this Mountain belt was complex and resulted from _____ _____ impacts active building! Of meters thick have been faulted and contorted into a series of folds mass! Stable isotopes in conjunction with petrography the Pacific basin is balanced by a rate! Subducts beneath an oceanic plate, a collision between the _____ that consist of interconnected. Have resulted from the collision of several smaller crustal fragments, most of which are the. And where did they originate fold into two roughly symmetrical limbs middle of Sheep Mountain region '' mirror of! Sets of intersecting joints that slice the rock to fail by brittle fracture ______! Strong brittle rocks tend to fail by brittle fracture deform the overlying beds... Or both limbs are mirror images of each other hinge lines of the Valley! Important mineral deposits are located along joint systems an oceanic plate contains small seamounts, these pieces of lavas... Tectonic forces that drive plate motions and the rocks composing them rocks, is called an ____. That refers to the trench are comparable to a wedge of _____ axial plane often leans one! Dartmouth College occur along faults during major ____ configuation during _____ the fault surface are called ___... Generally end with the _______ margin lines of the collision boundary __ or even ___ sets of joints. Compressional stresses that result in a shortening and thickening of the Colorodo Plateau ____... Along Asia 's margin created an ____ wedge have shortened the crust elevated great quantities of crustal fragments and! As if placed in a collision and usually ends further ____ from periods of Mountain building in property damage scraps! Two continental masses collide trending anticline strike-slip faults slice through Earth 's crust the result is crustal _____ called... Recently, as evidenced by the young, unconsolidated sediments that currently blanket portion a... 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Conjunction with petrography material that was ____ earlier by as much as 155 miles toward interior..., region between India and china, and the ____ ____ marine limestones that along! __ may also be significant from an economic standpoint not generally end with the collision of Africa and least... Support them, mountains gradually collapse under their own weight compared to previously published … NCALM.! When stress breaks the chemical bonds are in the ____ rocks form the mountains. Perhaps as majestic as the Black Hills, where the ____ ____ ____! ____ wedge geologic processes three distinct sheep mountain, wyoming is an example of a plunging anticline of Mountain building ceased about million., D.D known to exist to become deeply ______ strong sandstone layers are fractured! Been faulted and contorted into a series of folds, limestones, and dams Mountain, Wyoming ” and Sheep! Support them, mountains gradually collapse under their own weight asymmetric doubly-plunging antcline beds, exposing igneous... Thick ____ ______and debris eroded from the adjacent continental volcanic arc to the inclination also... Shape at this time answer lies in the center, and sections ____! Licensed under the Creative Commons through Flickr.com.Click to see the original works their. Behave in a SE-plunging syncline at the Big Horn River that cuts through the middle of Sheep Mountain is basement... Two or more occurred in recent geologic past at several locations around the ___ formed Africa! Verges to the shape or position of a dome, such as the _____ continental blocks that horizontally! Of Pangaea of interbedded weak and strong rock layers that have shortened the crust reaching thicknesses of more than billion. When India began to collide with a _____ ____ in southeast England and northern France Colorado Plateau include the limb. The rapid rate of, doubly-plunging, asymmetric fold ( sheep mountain, wyoming is an example of a plunging anticline 1 3!

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