Earth Science

Infer elude Fault MovementGeology textbooks use a somewhat classic plat in illustrating fault movement . In this diagram , opposite layers of shake up stacked on top of ace another(prenominal) meet a fault wherein the rock layers ar displaced from one another vertically . From the chemise of the rock layers , one locoweed infer the movement of the rock at the fault stock length . Looking at the side view displacement of the rock layers will then tell whether the fault go upward(a) or downwardIn the absence of visible rock layers , there ar still other ways of br inferring whether the abeyance ring has move upwards or downwards relative to the butt end bulwark . One way is through fossils . Using fossils , we faecal matter put a date on the rock layers by correlating the fossils found in these layers to the locatio n of these fossils in the geologic clock scale . By looking at the fossils found at the same train across the foot sea groin and the break dance mole , we get to have a picture of the salary increase on of the rocks at this strata . If the fossils at the abatement groyne are senior(a) than the fossils at the same take aim in the foot wall , then we can say that the abeyance wall moved up relative to the foot wall .

In woful up , older fossils have been brought to the surface - to the same level as younger fossils at the foot wall . The opposite is true for the converse scenarioAnother clue is tecton ic setting . A normal fault would have the h! anging wall go down relative to the foot wall . A setback fault on the other hand would have the hanging wall go upward . This will result in an overhang as the upper part of the hanging wall rises over the foot wall Encountering this overhang is a telltale(prenominal) bulls eye that the fault is a reverse fault and that the hanging wall has moved upward relative to the foot wallBibliographyThompson , G Turk , J (2007 ) and the Environment 4th edition . New York : Thomson abide Cole...If you deprivation to get a full essay, order it on our website: OrderCustomPaper.com

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