GEOL 21062 Lecture Notes - Lecture 16: Forebulge, Downwelling, Bending

• School: Kent State University
• Department: Geology
• Course: GEOL 21062
• Professor: David M Singer

Document Summary

"ll!s phy! on!o s!fi les. pe ce. top og ic! ogra struct r. !f ge acti do! l! e"l nd!a!lar y!w. !co scussing!earth"s! is! a he! t ss! ys! w ures! geol racts!w ith! Pl phic/ of!rep rr resent e ! surfa ce! Cont ou e!el rs!are! evat lines!indica ion,!or!anyt t ing! hing!el se! Ridges:!contours!make!v adient!of!z! eflects!gr s!pointing!upslope! (up!valley)! s!pointing!downslope! (down!ridge)! osed!cont ours,!with!contour!values! They!fol t!po divides!ca downslope,!starting!at!the!outlet!of!a!watershed!and!moving! upslope!until!the!divide!reaches!a!peak!(local!maximum). !! ounda here!t y!following!the!chain!of!vs!tha re!the!b. !so!dra divides!a he!fl ries! low bet ow int: cross. !a!pl tion ggera ersect s!ea l!dist a ot!of!z!(elevation)!vs. !x! (horizont. Usual ica ances. ed!as,!e. g. ,!2:1 tle,!so!vert ly!report l!exaggeration!>!1!is!often!used,! our. ch!cont ance)! !will!ind per restores!the!spherical! rical,!nonhrot a ting ive!f r sure!gradients,!which!will!d. !these! low!that! uce!pr es shape. pertu bations sider! tur: wh ether!spherical!shape!is and!time. ![ppt:!earth!vs. !p devel s! op planets!develop!a!r re! otational!bulge. erior!pressures. The!firsthorder!model!of!earth"s!shape!is!therefore!an!ellipsoid. is!a! lumpy gradient ia ccel l. !gra era vit tion! !pot l ationa approximately w field! g! or,! vect hose! (g!