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lmpactc of Mechanical I:gwpment of Benwn Brothers Quarry nn Nearby Rock Bluffs- <br /> . ~~ ~ <br />- <br /> <br /> <br /> <br /> <br />~ <br /> <br /> <br />.~ig.~- .. <br />-~\ <br />~~ <br />'° ILA <br />_ <br />~ <br />. <br /> _ <br />~ <br />' <br /> . ~'-' <br />~ <br /> a , <br /> <br /> <br /> <br />' _ -. _- _ <br /> <br /> <br /> .~. ' . ~t <br /> <br /> <br /> <br /> ` ~ r ..: <br /> <br />_. ~ a. - ~ jl _ .~ <br /> <br />i50 Caterpillar Back-hoc Excavator <br />„i - _ <br />~. <br />• ~, <br />,_ <br />_J~ - ._ <br />~, <br />- J t -t .. ..._ ~ y <br />} f ~_ <br />~.~L.-1'. _ ~ ^.. <br />. f 1 , _ '~ <br />Vibration Transducer from Inst:mtcl Srries III Seismograph <br />{lfVl l' AcsiK;atcs.lnc. Pchruary?IXIG <br />