Earth Sci
Folding - The process by which crustal forces deform an area of crust so that layers of rock are pushed into folds.Faulting - The process by which crustal forces cause a rock formation to break and slip along a fault. Fold - A bent or warped stratum or sequence of strata that was originally horizontal, or neatly so. Fault - A planar or gently curved fracture in the earth's crust across which there has been relative displacement of the two blocks of rock parallel to the fracture. · It takes 2 measurements to describe the orientation of a layer of rock exposed at a given location: · Strike - The direction of the intersection of a rock layer with a horizontal surface. · Dip - Measured at right angles to the strike, is simply the amount of tilting - the angle at which the inclines from the horizontal. Constructing a Geological Map and Cross Section
o Shearing forces - push two sides of a body in opposite directions S Thrust fault - a reverse fault at which the dip of the fault is small, so that the overlaying block is pushed mainly horizontally. o Fault - A fracture with relative movement of the rocks on both sides of it, parallel to the fracture. o The dips and strikes of inclined layers · Fold Belt - A linear region that has been subjected to folding and other deformation in a mountain building episode. Suggests that the region was compressed at one time by horizontal tectonic forces. · Dome - anticline structure, a broad circular or oval upward bulge of rock layers. · Brittle rocks - little change, then breaks · Basin - synclinal structure, a bowl shaped depression of rock layers in which the beds typically many km's in diameter.
Some common words found in the essay are:
Joints Cracks, Science Folding, Plunging Fold, Brittleness Ductility, Rocks Deformed, Bends Breaks, Strike Dip, Rift Valley, Fold Belt, Synclines Downfolds, fault plane, relative movement, tectonic forces, process crustal forces, sedimentary rocks, rocks brittle, parallel fracture, reverse fault, rocks ·, below causing, rocks fault plane, fault rocks fault, fault plane move, plane move,
Approximate Word count = 640
Approximate Pages = 3 (250 words per page double spaced)
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