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Show Mighty Falls of NiagaraAre Niagara NiagaraAre NiagaraCruniluing Are . Cmmblinp Crulnblil1g Cruniluing Each Year The rnlgliti D1lght mlglit3 f fills f\l1s f l1s tlls \ of Nhsan N11g-ar1 N11g ar1 Ningari - are arecrumbling arecrumbling arecrumbling crumbling year by year ns nr n5 ; thousand thousands thousandsof of tons of rock rocL . crn crn&h crnh crnsh & b from the lip of ofthe ofthe ofthe the gorgeBy gorgeBy gorge gorgeBy By the icir year c1r 2305 2303 30 ; . the waters venters w111 will w111have willhave willhave have completely wom worn WOI womv n 1\\ 1 11y iwiy ' ' \v v \ \ < iy 1y ' tlie the fntls falls fallsand , , nnd and there111 there \ ' will \\111 111 be only the ] 1C 16 0 mile milerIver mileriver mileriver rIver running down a n "iscade iscade c'1sctHle c1sctHle CgSCnrle ( " ' dotterl dotted dotterlbed dottedbed dottedbed bed from Lake l.nhe lnhe . Cue Clle to the great greatgoq greatgorge greatgoige goq gorge e of Nla Ningarihe Nincan Ningari NincanIhe ar'1 ar1 ' ? Ihe he ieccnt ecent recent I fall fnll of : 30000 :0000 0000 tons of ofrod ofrock ofrocL ofrocLis rod rock . \ \\is is was \ \ 1S ' s simptomatic mptomatlc s3mptomatlc of the grndnnl gradual grndnnlcroclon gradualerosion gradualerosion croclon erosion : , bul but this Incident Incltlent W'1S W1S was ' s only onlyone onlyone onlyone one of a n series of crashes that tbnt ve be veg'1n begin begin g'1n g1n gin ' thousindb thouc1nd thousands ; ' : . of years agoNntm agoNatute ago agoNntuic Nntuic Natute Nntm e Is a sculptor scnlptor \ who sho ' \ ho never neverstops neverstops neverstops stops " working orhlng , , and one of her great greatest greatcst reat reatcst cst est molding mohllng and remolding weapon weapons wcaponbIs weaponsis : . Is water "nter nter " . , S \ ISltor isitor Isitora : . , now sec see two citancts c1tar1lts cataracts , the theHorseshoe thenorsoshoe orseshoe Horseshoe falls faUs on the Camdhn Can1dl1n Canadlin side , and the smaller smnl1cr Ameilcin Amcl1c1n falls , but butonce butonce butonce once there was wns only one cntarnctGeolo cataractGeologists cataract cntarnct cataractGeologists Geolo Geologists lsts estim estlm estlrn ito Ite rte that Nlng1ra Niagara Nlng1rafnlls Niagarafalls Niagirafalls fnlls falls Is O 50000 000 years old Ironlc'1lh Ironlc1lh Ironiciil Ironlc'1lhthe Ironlcilhthe ' ' the process proce"s proces " of Nature Nnture that fOI foimed foimedthe foimedthe med medthe the fills f'111s f111s falls ' Is noworldng now \ working \\orldng orldng \ stcidily ste1dlly steadily bill bat batsilh bill"Ith binwith "Ith Ith silh " almost Inconcchable Inconcehnble tnconceitable 511\\ 511 511ness slowness slownessto ( ' \ \ ness nessto to level them The recent crnshln crashln craslilnof , . ? , , of 30 30000 000 tons of ro rock .h h < . .hV vets w \V V \ is only ont one oneconiparatltely onecomparath > comparath coniparatltely el cli tiny step In tlii thl tliinever < : " never ce ceising IsIng rasing proce processIn process processIn s sIn In one.IY one \ way \\.IY .IY say . the nniincr nl'1nner nl1nner nminner ' of de dectrue dectruetion dcslructlon < : ; tru ( ' tlon tion u used < : ; ed byature by 2saturc \ature ature \ ature In demolishliiR demollc.hlll demollchlll demolishing demolishinglagira : . | \ Migira \lagira lagira 1'1g1ra 11g1ra ' fills f'1l1s f1l1s falls ' Is uniisinl nnnsll11 unusual nnnsll111 Ml \1\ 1 111 \ 1th \ th the thecharncts tliccitancts { ' c ltar'lcts ltarlcts charncts ' on the E'al Eal ' eaith eatth th hue h'ae hae hate ' b been beenformed beenformed < > CII CIIformed formed by thee'1rln the \\e'1rln e'1rln e1rln \ weiring searing \ ' ! ; ' iwiv ' 1V of rOCR rocx rOCRby rocxby rocKby by " watir "ah.r ah.r ahr water . . The sand snnd ' ind 1nd and gratrl gratrlusualit gravflusuall\ gravflusuall gravflusuallswept raH ] usual/\ usual usualit usualSCpt / \ \ swept S\\Cpt S Cpt \ along In the wiler water wilerheps waterhelps witerhelps heps helps ] In the cutting " work "orh orh workhepthere \\hepthere hepthere \ \ hev hee heethere hevthere there Is a tilt tI1t In the rn rrter ruerbed er bed , or ordifferent ordifferent ordifferent different kinds 1.lnds 1lnds . of rock rocl . pl piesent present esenl , cis C1S Joo/ Joo M / Jooc'1de'J cides c'1de'J c1deJ sides ' ' and sometimes sometlme'3 sometlme3 sometlmes ' \ tt % \ itcrfnih Itt'rfnllS IttrfnllS iUrfnnh1 ' ' : , IUP itrP itrPcreated IUPcreated rcreated ( * created Hut But the w tr witer Iter Uer h Ir hII Irt IK , Mi \II II \t t ' \ rg , ; Ir rr inriver I m Iriver mriver river , lowing towing flo ( " Ing fl ft fium um L Like Ltke Ilw Lne Lrle Lee I is is , re remnrl remarl remarl mnrl marl ably clear . In It tliere there is pi ptac puctically JC 4 . 4tically Ucally tically no sind s1nd sand or bnH1 gritel gritelScientists bnH1&clentlsts rivcl rivclbclentlsts & bclentlsts &clentlsts clentlsts Scientists hi\e hi e h'1\e h'1 h1 hate ' \ dls dlsco\cred dlsco cred dlscotererl .o\Crerl .oCrerl .o o Crerl < . \ \ tha Ihat that ) tlte line tltetop linetop thotop top 11 liicr layer er of the cstirpnipnl e5l1qllllPI\I e5l1qllllPI I escarpment \ is ot of othard ofhard ofliard hard dolomite \ with Ith " soft "oft oft sh sin slule lIe the be benC'Ith beneith bencith irge1 . nC'Ith nCIth neith ' INs 'Ibis Ibis 1 ' his csphlns ctpJ'Ilns ctpJIlns explalns ctpJ'IlnsVII : ' why \ wli \VII VII ) limepieces Ilrge lime t pieces of the top rock hrenk brenk hreak offShe off 011 off'Ihe 1 ' 'Ihe Ihe She ' he water wnter erodes erolJes Jthe Jhe line < ; sliale shale hnle , , , t-r'111 t r'111 r111 tr'111ually - , , rod rodwally riilually ' ually wally tciring te1rlng tearing the support SUPIJOrt from un en under ender under der the dolomite \ which \ hlch then crashes crashesdon cr cnshesdown Ishcs Ishcsdon do\\n do n don % \ \ But II It brciks bre1hs breaks ofT off In such slIlh a aW1Y away awiy W1Y way that the \ wills sills 'Ills Ills ' of thp thE ' fills f1115 falls nre are nreleft areleft areleft left unlnp'1lreac unlnpilred-as unlnpilred as unliipilrcd unl-np'1lre unl np'1lre np1lre - ' -ac ac - as ; ict Set et . . But , , IHUe little IHUeby littleby litOcby by lit little tic , tin thl the . dolomite ' H 'It It th the ( ' crest crestwhich crestwhich crestwitich which Conns fOl11l3 foams Ihe the I lie lip o\pr o pr O\lr lr o'er oer Olrvhlch \ ' ? \ wblch \vhlch vhlch which Ihe the IheGlcat theGreat theGicat Glcat Great I J f JII fml II ml iles cs es pour their ctupendollq stupendorro ctupendollqe stupendorroexcess ; stupendousexcess e excess ce < ; s slIler \ water \\lIler lIler cater supply sllppl is 1'3 13 ' dl&nppeirlni dlnppeirlni dl&nppe'Hln dlnppeHln dlsappeiring & ' ; I 1 Ihougli hough hougli It Is diflicult cUOI'ulI cUOIulI rlOicult ( ( ' to 'ctlm'1te ctlm1te estimite 'ctlm'1tethe estimitethe c { ' ; < itlmitethe ' the rile r'1te r1te rite ' 1thlch it 1t it \ which \\hlch hlch Ihe111 the Ihe will \\111 111 sall \ \ Ie Is Isrcrcdinand : reeedlnti reeedlntiand re'cdln recdln ( ' ? nnd and the gnige gntge nlt e it the simp S1mp same time tune h t tIcngthoiiin ? l llen ' len lengthenin thenln , . ? , , scipntists cclpntlsts scientists ; set the ligme ttgtue hglJl e _ _ ' it 'It q'j qj 37 7 ' ( feet 'el el ( ' per . yeir .feu feu year This Is 1s how howthey howthey howthey they ' irrive 1rrhe nrrite at nt the conclusion thai Ihnl that It ItI1II'1I.e Itwill \\I1II'1I.e I1II1I.e I1II'1I.e I1II1Ie \ % \ 111 like tike ' . iinlll unlll until the yeir ye'1r ye1r year ' 2'o 2o 2'0'i3 20i3 2'IY3 2IY3 ' ' 11 her.ore herore before her.orethl beforethin beforeIIP . thl thin ( ' 11 it Id . , I1Ille miles < : of or rock ro'l rol ( ' < hets between heh\cen heh cen \ ten I t nice niceClle niceCue nkeHi Clle Cue Ie ire 1re completPli complet'lj completlj completely ( ' biokcn bloken broken down tJown . r |
