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<br /> <br /> <br />"." <br />...' <br />0" <br /> <br />Common nomenc I ature used for descr i bing components of a <br />landslide. <br /> <br /> <br />. 'Ie' <br />~F <br />..~~ <br />"...."";.~..F <br />dP~ ""'~ ~ <br />\,,,\ .€. .' <br />. ....., ",,"." <br />'" P' <br />, k <br />"'\{ ~1hl'!&,." ~ <br />"'ll ;. <br />, }"" "" <br /> <br />So i I creep is common on a steep 5 lope with a th i n so i I cover <br />over bedrock. Such patterns are frequent I y mi staken for <br />animal trai Is. Soi I creep can be an indicator of more <br />serious failures In the future, especially if the area is <br />disturbed. <br /> <br />Landslides <br /> <br />LANDSLIDES are the downward and outward movement of a slopes <br />composed of natural rock, salls, artificial fi 115, or <br />combinations thereof. Common names for landsl ide types <br />include slump, rock slide, debris slide, lateral spreading, <br />debris avalanche, earth flow, and sol I creep. <br /> <br />Characteristics <br /> <br />Landsl ides move by fall ing, 51 iding, and flowing along <br />surfaces marked by dl fferences in soi I or rock <br />characteristics. A landslide is the result of either a <br />decrease in resisting forces that hold the earth mass in <br />place and/or an increase In the driving forces that <br /> <br /> <br />Th i s I ands I i de near areckenr 1 dge occurred I n an area proposed <br />for development. The land ufal led" as a result of water <br />saturating the slope. The 51 ide moved so rapidly and with <br />such force that trees were uprooted with the tops fall ing <br />uph II I . <br /> <br />25 <br />