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Accretion is a process by which material is added to a tectonic plate or a landmass. This material may be sediment, volcanic arcs, seamounts or other igneous features. |
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In plate tectonics, a convergent boundary – also known as a convergent plate boundary or a destructive plate boundary (because of its cause of destruction) – is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide. |
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| In geology, a dome is a deformational feature consisting of symmetrically-dipping anticlines; their general outline on a geologic map is circular or oval. |
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| A joint is the location at which two or more bones make contact. |
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| The term fold is used in geology when one or a stack of originally flat and planar surfaces, such as sedimentary strata, are bent or curved as a result of plastic (i.e. permanent) deformation. |
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| In geology a fault, or fault line, is a planar fracture in rock in which the rock on one side of the fracture has moved with respect to the rock on the other side. |
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| fault block mountains[image] |
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| Fault-block or fault mountains are produced when normal (near vertical) faults fracture a section of continental crust. |
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| A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, typically having a valley known as a rift running along its axis, formed by plate tectonics. |
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A monocline is a step-like fold consisting of a zone of steeper dip within an otherwise horizontal or gently-dipping sequence. |
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| A normal fault occurs when the crust is extended. |
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| evidence of overturning[image] |
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| Chain of custody refers to the chronological documentation, and/or paper trail, showing the seizure, custody, control, transfer, analysis, and disposition of evidence, physical or electronic. |
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| A passive margin is the transition between oceanic and continental crust which is not an active plate margin. It is constructed by sedimentation above an ancient rift, now marked by transitional crust. |
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| A reverse fault is the opposite of a normal fault — the hanging wall moves up relative to the footwall. |
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| The fault surface is usually near vertical and the footwall moves either left or right or laterally with very little vertical motion. |
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| In structural geology, a syncline is a downward-curving fold, with layers that dip toward the center of the structure. |
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| A thrust fault is a type of fault, or break in the Earth's crust with resulting movement of each side against the other, in which a lower stratigraphic position is pushed up and over another. |
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| Tectonic uplift is a geological process most often caused by plate tectonics which increases elevation. |
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| The exposed geology of the Canyonlands area is complex and diverse; 12 formations are exposed in Canyonlands National Park that range in age from Pennsylvanian to Cretaceous. |
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| a raised beach or a marine terrace is an emergent coastal landform. Raised beaches and marine terraces are beaches or wave cut platforms raised above the shore line by a relative fall in the sea level. |
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