8/17/2019 Importance of Sedimentary Rocks

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SEDIMENTARY ROCKS

WHY ARE THEY IMPORTANT?Sedimentary rocks make ! a!!ro"imate#y $$% o& t'e eart'(s sr&ace) W'y* +ecase i,neos and

metamor!'ic rocks are nsta+#e at t'e eart'(s sr&ace and tend to nder,o -eat'erin, rat'er .ick#y) T'eynder,o c'emica# and !'ysica# c'an,es t'at -e ca## -eat'erin,) T'e sim!#e rocks t'at are !rodced aresandstones /01203%4* mdrocks /$3%4 and car+onate rocks /51253%4)

THEY CAN TE66 7S8

5) EN9IRONMENTS AND PROCESS O: DEPOSITIONAs -e #ook arond t'e eart'(s sr&ace today* -e can &ind many en;ironments -'ere sediments arede!osited) 6ook at +eac'es* dnes* ri;er c'anne#s* deserts* mdats* and ood !#ains) I& -e &ind asandstone t'at is !redominant#y made ! o& .art