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DON LEE FRASER Supervisor

WASHINGTON DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGY AND EARTH RESOURCES

BERT L. COLE Commissioner of Public Lands VAUGHN E. LIVlhlGSTON, JR.

State Geologist

GEOLOGIC MAP OF THE DESTRUCTION ISLAND AND

TAHOLAH QUADRANGLES, WASHIN.GTON

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By

WELDON W RAU LIBRARY

0 ARTMENT OF NATURAL RESOURCES GEOLOGY MID EARTH RESOURCES DIVISION

OlYMPIA. WASH!NGTON 98504

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GEOLOGIC MAP GM-13

WASHINGTON DEPARTMENT OF NAT URAL RESOURCES DIVISION OF GEO LOGY AND EARTH RESOURCES

INTRODUCTION

EJrl;' rnnlrilrntions lo gMIO,<f ,1f the mapp ed CLfca ore i,y Arno ld (!906/. RcJ~an i l 909 ), Arnok! ~nd Han nibal 1191 ]), Lup ton I l 'l 1-1 I. :md \\'c,m.:r i 19 1 6) . These mvcstigJtiom :ire largely of J reco nnaissance n:JUll'c :om! confined lo th,· ,-oasc :111d major riYe r vall~ys. l,lov,:,r \l'NO. l'/.\5) rnllcdcd 111ud1 d ula ilcd informulion ulon~ th,' ,·oasl. lhldwin"s 1939 study ls rn,c nf tlw firsl "°"""min~ (O;i stal l' lei stoce,1c depo~its. In 1937 WC,l\' CL ,·cviscd sn mc nf hii origina l work. Rccelll CD ntiibu t io11s indu tlc·" strn1rna ri- nf I lic gcCJIL1gy :11HI m ineral rc10 ,ir,-~s ,1lo ng the c·Dast l,y \foi.,~•·nhorn aml S,mvdy ! l 'J6~-I. pc trnlng_y o f wmc of ll\c !!oh rods by K~>d1 ( 196R), aml :1 detailed stu<l y nf 1he mlimcn(ary history of (]le Qu inuull Fmm:il iun by Jforn 11 969). lnvesti;;.1tinns by S!e\\llr l 11':1701 on pdrnln_ey. mel;rn, orp hi srn. ,,.,d slru clma! rdation, incl ude" regional map ,,if the \'."est.central I""' of the Olympic· Pc11i11,., la. Repurts un <.lct ailcd biostr atigraphJC slu<lLe., o r tile Quin,11111 Ft>r11i; ,1im1 "'"I" , un11mry of th e c'<.lu.stai geo logy l\~W Ileen prc.sc,11cd h y lbu I 1970. 197-1) :is" parl 01" the pr,·sc11t mapping pruie,· t.

The rnoper:,lion an,l ,.,u,1c, ie, cxlclld ~<l to Um :iulhor Jurin~ the ,·oursc of field inrcst igolions hr rnernhcrs nf the Qni11"ull Trih"I Council Jnd 11 ,c Olym pic Nution31 Park SNvicc arc ~,a lefuil)' ,ekll <)\\'lc,l~e,I. Thanb arn also due to many individual,; c,f the var ioLls communities in 11,c area fo r !h eir generou.s as.<1st:11Kc. Tcdmic'J l <liscu.»iun~ with W M. Cady . N. S. ~lad,en<I, P. D. Snavelv. Jr .. R. IV. Tai.Jo ,. am! H. C. Wa!,in~r uf t ile U.S. (1eo lllgiea l )11f\"EY . and R. . J_ stCwan of tile Lln ioc,,;i ty ul Wa,hinglm, have been rnrnt he.lpi'u l. Tl, ~ ,1.<sis tance ..if many ;t ;tff 111cmb~rs of tile' Division ..if Geo luµy an d Ea rt h Resour,·c, in the pr ~pn ral ioJLl of Lho m:ip is ack now bl.~cd. Field :issi.Sl"nLs wl,o I"""" rn 11 t ribu ted nrnch ar~ Jo hn P. B1~1i slin, Crcg D. Cln1al , nnd G,,r: ,ld R. Gruco,·k.

GENERAL STATEMENT

The primary Pllrll('l.'Oe c, f l11e map IS 1,, sli ow th~ d1>trilrnlinn c1 i" Tcrliny rock un,ts rn ai much det Ji l l< pos,iblc. us well ai to ln rn lc th e 111:,j<lr slrndur ~s and faults With in these. rocks. ~lapping o f tho Qnartcrnnrr depo« ts is iencrali,rd lO sllow either alludum or alpli1e glad:11 tlrirl . Althoug h in plac·cs fu rt her snl.Jd1'lis1ons am apparenL [lar!kuhrly in the alpineglada l drift , ;,, view of I he ~ope of ti, is map llwse sn b<livi~ion, a.re no I sl1own.

In most place: QualNnctrf dcposi li rssl LLns:0 11 fo t11 1al,ly 011 Tertiary rocki. Howe1·~r. ,·onl;\Ct relation, 11rc I\O l full y kmiwn lie1..-;c~n \\ha t is llelic,·e!.l to In tile o lUcst !(c'ntl y <lippin~ Plci>h>c"<'nc cl q,o,ils :md the· mo<.l · crnloly dippillJ, and fall lted Pliocene ()11i11ault I't>tll1al ion. TlnL< , ,n places both within th~ ma pped .,re., aml Lil surro umling :11c,LS, l h~ two units ,my w~II Ile .-011form1hle.

The two m.1jor Te11iarr uni ts, 1hc nu1<lcra [d}" fnhlc<l and faulted Pliocene Qcoinauh Fornrn lion "nd tllL' o lder intense!)" 1·c, lcl c,I an<l faulted ll ol , ro,k as,embbg-c. arc ,cparn!d by., prnt'rn,nd aLld \\·i,lcs11r~"d ,rn ,:on i"urrnity. ~ trn,·tural 1c1'11iuns clca rl,• inili,·alc lime major lcc·Loni.sm tn"k 111:i cc prior to de position of the Pliocene Quinaull Fornrn lioll uml ~Dme 1,mc f<lllOll'mg mi< hll e ~!ioern~ l ime .

lkeJu<C mud, or the b~dmck in areas .mull , 01· 11,c Qucets River. ca;\ of tho Clea1w"ler Riser. anil in !lrn ll u h lliver ,·"Ile) is m:,skt•d br 11, iLk dq,osils of drift. Tc rlbry ruc k, :ir~ ~how ri uoly wlrnrc the) actually crop OJ\>t or arc known 10 l)e

" "l l' thi11ly ,·o,·e rc·,I. Strudur,t\ inll'rprctat ions arc nece ,s.1ri l)' h miled and rile extent o f c:ic' ll Tnl iar)' 11 11iL ha< 11u1 been fo lly det,·rn ,i nc<l rn l11e ;c area, . ln lhc mojol" Tertbry u,,t ,·rup :irca lie1.,·ccr1 lhc l!ul, Valley a n,1 t he ('lcar11-atcr-Q11ee ts drni trngc. dat :, "" ,n~k 1yp~ di , 1ribu1 iu11 Clnsi sl111,· w re :ire nwr~ '""~Llallk :Llld lherefo re inteq>rel a I io11s '"" prc,,cn ttXI in w 111 cw ha t grcalcr dr la LI , n this .:rca.

Almost :,II faul ts show n arc ,·on,·cp lH"I. Fur lhc mos! parl. t hey se parate abrnpl ly diff,,,i,-.g; STll!c'lur,ll lrends ,,,. ,nc,j o.r l,\.,eks ,,f ,\;s t i1 wtly diffo,enl r<ick l)"[' CS . Tiley rarely have hsrn observed a, a,·1u,tl r,·actmcs. lfowcvcr . in " fow plac~s. intrnse .<hc'aring lias prov1tlc<l ,·r i tcria ror t l1c prcdsc pbncmrnl of .some faul t~.

DESCRIPTlON OF THE MAI' UNITS

SUKHCIAL DEPOS ITS

A LL UVlm l

Qal: silL sand. am! gravd- majur dqms il, 01· Lmccrnsoli tl .,te d ,~dimcnt s. large ly conri neJ lo r i\'cr bo ttoms and .s1>i ls al lhc mnu!li of ni: ,Jor >t rcams.

ALPINE GLI\C lAL URI FT

LblJwin (19 39) r,'(o.;ni,e<l ~ \\\'O-iol<l division of dr ift <lepo>i ls in the urea; an tl Glo,·er (19401:il 1nform~lly referred 10 lh~ oltl est of these a., 11lc"Tal1olah F<Jm1al io11.'"und lhc youngest as th~ QllCC (> 11,'ds. Allhm1;; h th ese <lcpo.lLB a,~ undiffrrcntt:Jted on the pr~.senl 1,1 ,\p. genera ll y the yoL1ngcr <leposi!s arc t\:,und 111

,oa~tal ,1 reas ;ind at tower den11lons 111 major slre,1111 vallc)' s. The top of thc,e deposits, ,lt some ~UO fee l elevation or lcs.s. forms a pietlmonL aurface ., mile or so wide :, lQng nHHt or t he coustal arcn ,tnd fart her inland in mujor 11ream rnlte;·s . as well JS 011 LJ estructic)n J,;],,ntl. Th is i1nface . "ll ho l>gh ,,ppeali11g ,ic.,r!y t"luL var i~, broatl ly in c'l~vallon rngge>ling gcmlc IVil<ping of the unJ,,,Lyini; rocks. For c.-:a mplc. die , urfoce >la ncl.1 notkcnl) ly la1wr in the Kala lod, area lil nn it docs both to the norll1 ,rnd sou1h. Esscntiully all o f 1t1<'oe depo.1i ti appear lo be ou lwash and lacuslrinc maw rht!s. They re.it unrnnformably on t11c older Pktslocene deposits and Tert iarr rocks.

llenss~r (1 9721 records radioca rb on dates from peat beds in tlle rou nger unit th,1l sp;H\ lime fro 111 16.7110 H.P. to grc,1ler tlmn ·17.000 ll .P. lk fort her eatimates lhc IO\wst deposit, Ln the yo1Lng;cr ttnit ll\.l)" tlato from 70.000 G.I'. In 1974 l1e rdcrred lo a! least some o t' tl, e,e deposits as S"l mon Spring~ eq1nva lent.

Older depo.1its crop Ollt at cJe,·otirn13 ;ibove 200 feet and are p1r!iculnlr c -: tensi\'e in lhc upland area, bot ween the Quinau lt and (.lueet s Ri,ws. at hi~h~r elevations ca, t of !he Clcurwol~r ltir<ir. a nd along 1hc sout l1 sic!e of tM 11 011 River ,·allci· - T l1cy nl,o aop om i,1 llic llasal p~rt of sea cliff> main lr bet\\'een the R,1 ft ltiver and the Q\,ee t,; River. and from Trnil 5 nol'tllward lO ll,c I-J oh Ri-:cr, l n !llesc lalter are~,\ t he co nta,'I between Ille two drift \lnils is vc r)' pronounced and nearly harizomal. represc nllng Lile tra,'C of~" e levated w:\.e-,·11! terrace t11.n was c~rvcd o n o lder rocks r,rior lo \he deposi ti on of tile younge r drift un ,1. Some of the olde r drift, pankuL-1.rly that in omcrops between Trail 6 and 1hc Hol1 Rn'er. ma;- w~ll he till; llrn :. .<11gg-csti1l;( chat al one lime ice cxtcnJcd ,it loa~t :is far we.<twar<l a, t l1e pre,cnr·day con;t . The old er tlrm unit is cs tim,1.te,l to da te beyond 70 ,000 B.P. llcum·r (1974) sl,nes t lm t some of (11.cse pre-Salmon Springs m~ lcrie,18 might be pre-l'l•}"Jll\lp. perlrnps dat ing fro m Stuck gladtotion . These older deposits ,lisplay even ~rcatcr warpi 11g t ha n llie rm1 11g ~r Plcislo~·Jn<' tlcpm ic,. In places, p,uticu larly u mile or , o c" i l or Taholali. dips li p to 40 ' ' lt"·c bcm fC<'\lrdeil in Lh e o ld er <l~µosil~. In !Iii., parlirnlar arc" · sleepe r <lips may bee rdlccliug po, L· l' kisloccnc faulting and(o r) may be rclalc<l to young J i:ipiri.m1 of o lder ru,·k beneath.

()g: cby, ,;I! . *rn<J, arul gr:ivcl- lcirgcly gl:1ciofl11vi"I, so me lacu,1r i11c a11,l 1il li~ J. Srnne t:S perce 11 1 c,f t he pebble, in the grm·e l ar~ ~ra)'W'1~kc s:u1tl <lo11c; many ,·0111ain lllllllCru us d"rk·colore,1 sill ;tonc dasl s. Other pebbles cumis! of vo lc"nie ro,·k. ,e,i :,rgill il c, phrll i1e . and li ght·e<i lore,l d,crt. Carboni~,·d wnml, varring fro ,11 i,,sgcer;ited pl:11, t n1:ileri:d tu lug, :uni sl umps is ,is.suci"led wilh l:,cu,tnne de posits and, Ln phccs. ii <lisper,sed ll1ro11ghou1 sand and grn,·el dq,osits

THE QUINAULT FORMATION (Tq)

Arnold (1906) first appli ed 1l1 e 11:1n1e Quin,rn ll (Quinaic lt) For mation to s!r.1la exposed be(\'."een Cape· Elirnbeth and Poin t Gren ville. ~ince then, much information has Ileen made a,·ailab le abou t lhe fornmlion, und its known ou tercip area t1us lll'en extended consi <lernlll;: ll\L ( la rgely wi!hi11 tile urc:, of lln~ map. Ruu (1970) presented a snmm,iry of lhe cnnlributiom of nu1nero u., \\"<lt·kers rnge!l1er with dct .. ll~d ,l us,·Jlp tions of measure d sec tions. a check lis t of Fo,amimfern from n11111 ertrns loca Ii t ie, , aml a rnmpr alm ns ivc cl i;c:ussio 11 of lhe llio; lrati!\r ,L phy of the form:il ion .

Til e li thology of l hc Qu i11"11II Fonnaliun varies wi<l,· ly. ~la ssh•e tO wdl.he,hletl sil!slnnes "re co111 nm11 i11 pl:K>cs :rnd c:1n be seen p,1rtk11br ly w~ll in ,e,·limi, e.~poscd alo n!\ tltc co:o< t soitl h nl" T:, lwl:>h . ,rnd in cliffs extending from abo ul l mile .ruu tl, of !he· nrnullo nf Duck Creek to .111<1 ind11r!ing 0111rrops at Prati Cliff. tlassiw lo wcll-l1edJd ,Saridslone, wilh wcll-<lcvclupcd d,a nndecl rnrfn ee.s :incl 1\L11n crn11< hr gc pcneconlcrnpor;incoui ;;e,li111c11l:1ry fc:,tu",s ar e w<"II cxpo.scd in ses diffs nnr ll1 nf Poi111 Grc,wille. Thkk li,Js <l f c<l,ir.sc s:imhl,1ll C :tll(I

,·onglomerate in!erl1ed,:J~d wit h t11mncr t>c ds of ,andy : i!tstonc are well ~xpascd in t he cliffs of t l, c Cape Elizabet h are~ a11d norllw;;ird fro m the Cape for abon l I mile. NLl!nerous d1annelcd ~urfo,·es are a lso common t>etwccn ! he ,·,n iou.s conglom,'rate betls in thc,e 0 111crop: .

All ho11gh the fo rmation or ic., cql1ivalcnL is believed co be wid~spreaJ on the Continental Shell·, i ls known c.xtcnt oni l1 or~ is limited to c'OaHal omcrop.s, largely hc lween 11,e mo uth o f tlrn Q11c~1, Rive r and Poinl Grenville. Nearl r nrn lun1ous ,mtcmp, :ire mappad inbml fo r so nrn ~ nule:; in tile mcJ inuncdiatcl)' .,oulh uf Raft Riwr and a frw isolJted outcrops are Jlso kno wn ub,n,1 2 mile> inb11tl in Lhc Taholah area.

Th~ ()ui11aull Formnlion is niodcr.1lcl~ i'olded with in v,e nrnpped area "i th dips mnst rnm111011ly between 10 ,rnd 25 lllps " I' tn 65 ""' k nm,-n in" !'cw pla,·c; in t l1c l'rnlt CllrT a1ca. The Quitrn ul t f'D rnrnti<1n rests with lll:tjor al ll!J llb c un ronfo, mit y Dn the Ho h rnek assc mblog~

T'a\Jlli 11g wilhin each wminuuus outerop of tlrn Quinault Forcnolion ll> tmll)' d i,p la)'s nuly rn111or rlis11b~-c111rn ls. Ho wuvtr. major pr,·-Plei.1t ncene('!) f.i11lts may lrnve rl'suhed in cxten.s i,·c dispbceml'n l hcrn·(•en ""'"' of the m:1jnr ou temp< nf the ()11i11:n1 ll FormJl ion. Some nf tlic.,c f;n1ll~ ;,re 111.1ppcd in lbe fnllnwing are:i.<e At 11,e south end of (he on(aop areJ of lhe Quin:11111 Form:11\nn innncd i.,tcly nnrlh nf Po int Grc11·,i lle: JU .SI nortllwe,,t of the nrnml, of the QL1inJult River: and about three.<Juar tcr; of o nu le rnuth or DHck Creek. Other rn aJm nort hea.s (· trcndmg: fa ulL s may form comac ts between llw Quinaull Formation antl the llrnl:rnge IQCks of tl1e I loh rock a:;srrnblage. both m•ar the IHOLllh of (h e Rafi RLver and also in ,111 area J pproximatcl)' 3 milt"s !o the soHlh. tklani;c ro,·J.:~ are frequentlr fo und between niajor outcrops of lhc Quinaull Form1tio 11 where. in most plac~s. th~)' ,ire Js.,ociare<l with faults on which major displacement is thought to l1~ve tckcn pla,e. Al le:ist ,ome uf lhesu relations arc interpreted a,; picrctmc,11 st rncrnres where t l, e older me la ng e. ro cJ.:i am b~licve d to t1ave. rnc,v~d into th~ Quin~ult Form~tion. possibly in some pla(~S al ong nrnjor fault! I Rau. 1974).

Both mcgafossil, and T'oraminifera Jre co11m10,1 i11 t11c Qrnn,u,h Fo rmation aml. fo r the most par!. indicate .'.l Plio,enc age: li owcwr, based 13 rg:c lr on . Fnra1ni111 fc rn, t11c lowermost part lli !he format ion expo.1ed withii, the mapped arl'a 11:i, been tentatively 1cthrc<l lu '1n up permosr p~rt of tile Miocene ( Rau. 19 7tJ). Funh~r mc,rc , fo, a lll in i fer" I <la la from n ITsl1orc 1•:dls ind ica l~ Iha I, at lea>! in pbccs . lace .\1ioa11e sl ,·:t r:, a rc prc•scn t llc twcrn th e a lder . suuclurally complex rocks of earl)" and mid,lle Miocene ,1g~ alld strala of Pl,ocene"!!"-

TIIE IIOJJ ROCK ASSEMBLAGE

\Vc;cv cr (1916. l9J7) firot applied tl ,c t ern, lloh F"""" !iu " lo ma ny of the rocks e~p used in the ll orlliwc~ccrn p~rl of the Olympic Pcn inoula . S ludic.s ,n oo,rncd ,on wi lh !he present map. toget her \'."lth rho,s~ t>f " r1 1nnb cr of other ,rn1kcr,s 1for exa mple, Glon,r, 1940: Weissenborn a rL<l S11:i•:cly. 1968: Slc,rnn. 1970: ~ml S11avcly and MueLcod. wrillc11 rnmmnnic"1ion. 1974) h~v~ ~hown tlrnt lhc.<e roc ks nol only ure ,1ukd litllologicatly hut :olso v,orr grca!l)-' in age. Furlhcrnrnrc. l hey lrnvtl. undergo ne differing m norn, t, of Leet uni,m frmn mod era tc fo ldi ng and fault ing to intense shearing ,l nd dis.irrnu_gc,ncn l of i11d i,·iJ u., I .stra ta

SPECIES

Alabami?>a kcmc11sis Smith A!nhumina d. A. wilcoxcns is ea!ifornica

Mallory A!!omO'!"phina m ac ros!omo Karn=r Ampllimorphina jcn/dnsi (Chu["(:h). Angulngeri1rn hannui Beck . . ...... . .. .. . Ano-nwlina ca!ijornirnsis Cushman and Hobsnn ? Anom11.!ina cL A. gar::nc11sis Cushman and

Siegius . .. .. . Anoma!i"a cf. A. g!abrnw Cushman. Asterigerina. crnssa formi .• Cushman and

Sicgfus Bagginu cf. B wa.shi ngtnn"1>.iis Ra,, Boliv ma cf. B. lmn icla Cushman. Bolio,ina m!a~n.a Cu~hm,rn . . . . 'F' Bo!ivina cf. B. incrnsrnta Reuss . BoHi,in(t n-uirgi.natri ml!llriirlmrn Cush111nn and

Klein pell Bucrclla 1111111sfiddi oregm,ensfa (Cu~hman,

R E. "nd K C. Stewart) . Btd,mit1~ amgata Cushman and Lalming. Bu!imina corrugatn Cushman nnd Siegfus. Buliminn m.icrornstota Cushman and Parker. B1i!imina ovata d'Orbigny. .. . . -B11Hmiliu puµoides d'Or bigny Bulimina .sd,cncVi Beck ...... . .. .. . . . . B1diminella d. B. subfu.siformi.s Cushman . Cns·sidulinn c'Tn.ss;p,mctota Cushman nnd

F

R R F

C F

F

Hobson Cassidu linoides sp.

C R o C

R R

F

F R

F

F

C

C

Chi!ost0'1nd1a d. C. /rndle11i. Keijzer. Cibirnks spp. R R R Cibic;cle., e!ma,msis var. A R..u [highly eon,·ex

venfrally ] Cibi,~des l,odgei Cushman and Schenck. Cibkides mmti11e.::e11sis Cushman and

Barbdale Cioicidcs mcmnstersi Beek ... . ............ . c;{,iddes d. C. j>Se1,do,m9erianus e"'oh,tl<S

Cushman and Hobson . . . ....... , .... , .. Cibiciclcs spirop1mcW!HS Ga1\owny and Morrey Cibkides i1enezw::lr.m1s Nuttall Dentaht1n spp. Dcnto(ina quadrtdn!o Cushman and L~iming Egyerd!o bradyi (Cushman l . Elpl,idimn d. E. ca lifoTnicum Conk MS. Eiphid it,m d. E. ,m,mtn,n Cushman. Entosc,!cnir. sp. Episfominellri pnr~a (Cushman and Laiming\. F Epistomi,,dla tcnuirnri"-'l(a. (Cushman and

Siegfusl Eponides dupre, Cushmao and Schenck . . ... . Eponides cf. E. keer,m,i Cushman nnd Klein pell Eponides umbon(lt,is (Reuss). G!abigcrina spp. G!obob"limina pacifica Cushman. Globocassid,dma glob om (lfantki n l . . , . . . , , . Gtoliocus.sidulina cf. G. ~u bglr,brn;a

Brndy) G"ttulina irrcg1ilaris tl'Orbigny.

(H.B.

Gyro;dina condoni (Cushmnn and Schenck) . . G)J_rO'di!li! cf. G. plonulara Cushman and Ren?. Gyroidina soldanii d 'Orb igny. KuTreriR11a chHostnma (Rems). Knrreriella w.:rn/iingfon.e"& Rau. Lagena spp. Lentict1.!ina s pp. riodogcncrfna· sp . Norfogenerina ad rena Cushman nnd Lnimin.e;. Nodornria cl. N. onomala Rcl.l5S . ... . Nodosnria cf. N. longiscarr, (d'01·b;gny). Nodosaria cf. N. rop1aan;strum er,r;bbenna

Hedberg Nan ion co.,tifernm Cushnrnu. J\'o,,ion incisum ker1rn1,sis Kleinpell. !l'ot1ion pompi!ioidcs (F,chtel and Mc,Ul . ,., . . Nunionellt! mioccnicu Cushman. Pla11111ina rn.shmnm (Bnrbnt and vonEstroff). P!cctofrond,rula,in (a/ifor nico (Cushman and

Srnwart) P!ectojronr!icu!arfr, cf. P. miocenim Cushman .

P!cctofrondicu!aria cf. P. p<id,ardi Cushman and Schenck . ... .. ... .. .

P!curo,;fome!Zn sp. Pscudoglancluli,ia sp. Ps~udogfon<l11!inn in_l!ata ( Bornemann 1 . Pscudog1a11d1'1ma :iff. P i,if!1'1c1 (Bu,·nemann ) Pu!!eniu. quinqudoha Reuss

Pyrgo sp. Qainque!oe11lma imperialis Hanna and Hanna Q"'nq11elocu!im, spp. . ... . .. . .... . Rota!ia bcdd B~ndy ~nd Arn;il . Rotri!fo cf. R. gan.·e11cnsis Natfond. S,p!1ogenerina bTUmrnri (Bagg). . , . . , . SiphQfJenerim, /deinpclli Cushmnn . .. . Sp/weroidino variabms Reuss . ... Sp,rn!ocu!imi f?l cf. S . lomposn HllSSey . Sp,ropleNamm,na cf. S. ,lfrec(c, (Cu~hm:in and

Siegfus) Ui,igerina m,bcriona d'Orbigny. Uv ige,·i11r. gallou.ayi Cushman. u ,, igerim, gurc:ae11si~ Cushmcm and S1egfus. Ui>igcrinella californka Cushm~n. Uuigerinclla obcsa impnlita Cushman and

Laiming

Va! vuli neria sp. r eloni:ale l Va!1'u U»el"ia m·niJ.<'ana /d'Orbig11y ) . Vn!i:uli7!eri" ~" !if(rrl!ic11 C\lshman. . . . .... . Vah-uli11c ri11 d. V. imli.scrimrnat c, Mallory . Vnl vHlineria tume11en.sis Cushman and

Simonson ... . . ... . .. . V irg1,1ir ia mlifurniensis Cushman ..

C

R

F

F

R

F

R

F

R

R

R

C

C

C

F

F

F

C

F

,· C .,

R F

R

F

R R

C

R

R

C

R

F

R

R

'

F C

F F

C

?

R

F • R

F C

F

R

R

"

R

F

R

Clover ( 19-10) suggested thJt some of these rocks, lnrgcly the """lslonc bctl s exposed iu l he ,•,e i11ily of Browns l'o int and De,uuctirn, l.sl"n,1. b~ sL'par:iltXI frnm \\'c"vcr's Hnl1 Form,lt ion :ind referreJ lo us the Browns Poinl Fnr111:1tio n. lfo11·cv,-r, lht' exrc111 of ll1e,e rocka inland. as show11 on the current ma p. rc,·cals lhal scit isfadory buundJrie.s are not easi ly mapped Jnd t herefo re· nm these rocks do not rn11s1i 1ute a \\l'll·deri ned format ion. IJernuse neit her th,· ruc·b uf \\'e:Ll·c r's lloh !·orm"tion 110, Glover's i,mwn., Point Formauon have l'ru vcn to he 11lll!Jp.1ll l(, uni ts \\'illl :, <lcli 11able lop ,md lla,e . \h~y "re all informally referred \U

as Ille llnh rock CIS SC IIJ bl ag~ ( Rau. l 97 3 ). Wilhin 1he arc.o nl 1hc Dcslrnction Island and rnholah ,1uadran"ll'S two

major groups c,f 1ock.s m:ike up the lloh rock assemblage: 11) tho;;,, slran"' bc iicl'ed to be large)J• tnrb i<.lite in oric:in. cons i,li ng of liJ;hlly folded , s lceply dipping. llm coherent sequences of i iltstun~ , gra;:w:icke snnditom', arid conglmnerate; Jn<l i2 ) melange ro~ks of inte 11 sclr sheared. ,omplcte ly dismrnnge rl, dnoticoll)" mix fd silt stone. and da)'sto nc. will, blncks of gr~ywackc sunds!o11e. eong lomcrate. and -mlcank material.

Fossils ar~ r~rc in 1hc lloh rocki bul Fo raminifrra have b('("n rnllected from lhcm a t 50 lnrnlLtics throlLghou! rhu mapped area (.>ee chc,·klis tl. A large majoril Y of these assemblages mgest either an c1rlr or middle ~li occnc ag~ 1Sa11crsiun or Rcli7.i~n St:igc, of Kleinpell. 1938). The oltlesl as,cmblagcs suggest a mi<ldk Eoce ne age an<l ca me ir<Jm intcrbeddc<l >illstonc or th~ ,·nkank rocks of Prnnl Grcn,i lle (F·SOl. Lile Eo,..,ne assemblages were rnllectcd from brok~n s1ltsto11e.1 am! sa ndslom· , e.~posc<l immcd ialdy nort h or the ,·olcanic ro,·k s of Pmnl G ren,·illc II'-48 and 49).

Surne of !lm youngest assemblag~s or the lloh ro,;k ,: are from the !-'.al.1lod1 RL<lgc sy 11dinc ar,·a U'-7. ~- 9. 12. and 13) and .,11~e.s( a Rcliziun ai;:c. The tc1, tnti,-cl,· 1dcnt1f1 cci fl. 010/ia f!"nl"l'<'.l "e ,i sil' from wry poor ly presN1·rd assc mll\Jgc~ of llle upp~r R:1ft River arc~ 1F·31 and 32) sugge; I an age U> yO Hng as la te t lioccnc and therefore. Ilic ,1ssocia led strati are que,> tiun abl ;: rcfrrrc d to the l!oh rnek asse m lll:1~t'. !1.01r.lia /Jrcki 1oget Il er wi l h associah'd fauna fro m melange rO(k< 11e:1r Ill e 1110111 h of !he R:il"t Rin:r and in the llugsbaek are:, IF·-13, 35. a11~ 3<,) sL1ggest upper S:n, c-csinn lo pussihly Rclizi,rn (m itldle.-t hocc11e·1 age. All upper Saueesinn :ig:c is :dsn s11 1,Bcs1e,1 hy Siplioi;mwri11u bm1111 eri and associated faun:1 from t ile melange IL)Ck ., cxpmed" mile or rn nor l h o l'C:c pe Eliz"both (l'-43-46). l'arucul:irl y d i;ig nostic S:nl c"L".; i:1 11 :ossern lil:i g:es were ~o llc~1e,l near ilm mout h of Il urnl <",eek !F-21) ""'I along 1hc () ueet .< Ricer (F-24 :11ul 25).

A l.,rge mujorit)" of t he sssc rnhbge , sHgg:csl foi,ly dcqH<""lcr ,kpo., i1in11al ,·,:,nilition~. pe rha1J< "l no less !h,m upper b:i lh)"I d,·pths. Slrn llmv."nt N spe ,·,e:s \\WC fo u11d ill a r,,w as.1t·mbbg:,'~. ma inly from the Hoh River ,md Uc,1 el1 Tr:1 il 5

urc'as (F- 1. 2, und 10). lluwncr. d,·ep-wJ ler fur ms are :olm prcscn1 in lhese s,1111 \l ~sscml.Jlag~s an<l ,u~gcs l tlia l an origina l shallow-water deposi t may h~,·c b~~n reworked dow 11s lc,pe. pnh,ips l, y lurbidi le a,·tiun, and inrnrporated in reiJ (\\·ely tlccl'·Wale r deposit,.

~lcg:,fo_ssils c,rc ext re, ,,cly r:ir~ in t he lluh ruck asicmblagc. W1t1, in the mJppcd men the only signilie:1111 c"{) llee! io11s we ,~ made un ti, ~ north side of tlw Hoh Rin-r, abouL H'., miles upstream fro m it s mout l,. /!crnrdtng 10 W. 0 . Ad,l i,·011 i/u R:t\L . l'Yi.1. and wrilll'n commun ic·ations. 197~). the asscmbl,1g~ inJicLJ! CS an c, trl y or midd le Miornnc age. The fossils funhcr suggcsL a relatil"~ly slrn tlnw.w:i le, c n,·iru11111c11t . possib ly al wa k r d ept h bd \'."een 1 () Jl\ and 30 m.

Tim following six lit11oloi:k types 11 1\"C bcc11 recogmzetl and their di stri-1.Jmio n shown on llltl map: Th.,I: sillsto11c- massivc to rhyt l1mkall:,· bedded with thin lami11Je of !inc.grai11cd

s:n1ds1one.

Th.ss: sil t<l onc and sa nU .,lum,- abo11I equa l amounts of lighl-gray to bl\1C'·g<Jy rl,yt hrni ~~ ll;: bedded sill sto1,c :ind finc"'!'rained s andstone: lleds rJ,igr in 1l ,i ck11e,<s from.> to 40 ,·m.

Ths: .~111dstollc - light.gr=i ;' . hlue.gr:,y \'."hen l're.shi)," hroken. o li,,,•-gra )" wh ~n weathered: fine- lo mcdi1,m-grai11cd. 111ass i1·e to 11\kk· helldcd 11·itll lhi11 lo (1 1ic'k lu mi na ~ or silt sloM: co nrni11~ allnndant li th ic frtlJ;lll~nts. In pl.ices, 1ndL1dcs 11ndilfrrent1al~d co 11glomcr.1tc. gri \. ,md ~o.irs,· .sandstone.

T hcs: cong:lumrrate . griL a nd coarse to ,·cry co~rse sanJstonc - ligh t-gray. blue·:;ray \'."h r11 frc:shly llrokc11. o live"1'.lal" \\' hen wcnthcred; maiiiw.; rnnlams Jbundan t lithic fragment,: commonly indudin;: <l~rk·gra)' shale d,ip.<.

Thm; mela nge rocb- d1~01i,a,lly mi xe d blm·b or mass ive oan<.ls t ,rnc. v,irying grc'.1tly m si,.e, lsmi tm ted s ihsinnc ,11,d .samhtrn,e, rn :i ,-si,·e sil1,1u11u , '""I altered volcanic ro cks >cl in u dnrk-gmr ,·olored. inten.scl;- , hcnrcd rna lrix of cln;-.s nnd .sol tstone f, agmen lS.

'J'hv: ,•oknnic ro,·ks- undiffcren tiatc<l. including a ltered l'Okan i,- bre,cin . !uff.s. and massive llasa ll.

STRUCTURE

The exlc nsivd y fol o.led lloh ro~J.:s scl,Jo,,, di p k~s tll:111 35° Jlld ar c commonly wrtknl or m·er(11med. J\mon:; th ~ prominent folds mJpped in tho m~JOr o ut ,rop area. between t he ll oh Ri,·rr valler and 1hc Clearwate r· Queets tlr.,inJge . ate t ile slecply norlhc"si -1,l u n:;inJ; and 01·cr tL11n cil Kalu loch R id~c srncline mHI Kulal<Jch Creek unticli11c: the ~tcep!)" 11or1!1wcs1-plungi 11g an<l overturned Dcstruc li on lslanil syncline; l11e isocli u al an d rcn11nbc 11 t Wt.sl Fork untidine . whose <Jvcrturnc<l western limb forms the ,·oa<lal 0L1lcrops in th~ Hr,wrns Pninl ,irc:i ; ,ind a .<leeply pl11ngi11g :ind over l1<rncd ,mlidinc aml 3y 11 ,,lin u hlnck i111me.lb1cly rn u1h of 1he K:1 blnd1 Creek :,nli~li ne. Se,·cr:d lcss prorninenl folds arc ;ilso .suggc:.le,l in tl,c Cle,irw:i lel' River :i rea .

Faulting within the Mo h rock asscmhbge is e.~tcn.si,'e and nn e111e111pt has been mndc to shn\'." :ill fm ctu L·e.s wi th on ly minm Uisplaccrncnl Hmwaer .;, rcw of these""' shown !u rcpre.se nl ihc 1n11 ncro us nor\liwcs c·lrending minur frac·tmco 11\"I can be sc·en 111 low-tick u!l t<:ro ps or (he Browns Poi11I are,L Ne:,rly all o r t l, cs~ dii11la:,- a lcfl ble ral 1110,·rmcm. ~!oil other faulls.sllown on lhc lllJ)' am primonl;· t hose ncrc.ssarr lo explain th e slrudur~l p,u1c·,n in lh e outcrop arc·~ of the )!ch rocks. Major fa11 l1 s arc hc lic\'cd to bound large blorks of s1rongly fo lded sedimentary s~ ~ucncas. In some pln,'cs mchrngc zon~s arc also bcliel'ed to bo bound by sig11ifirnnL foulls.

l!mong tl, c most promine nt fon lt s in tho arc,\ of major Olll c rop is the north-non he,1,Hrrndi ng Kala loch Creek Fmth tha t wpa ra1c: the \Ye at Fork an!icli11c seq11em,: from the Kala lo d1 Ridge srnclmc sequence and t11c East l'ork h1u lt to (Ile so uth. 'fhc lat ter fault is bchned lo be off.set to !he nortll in its nort herly e.-:te111 l)y tl1e ,\hller Creek I'aull. Major <l is plac~ment ~ppears lo Jrnvc taken place o n the .\t iller Creek Fat1l t. so me of which had a s! n ke. , l,p componclll 111 " ldl l:i tcral d1ro,·tio11. Although gl:1,-;,.1 drifl 111:, sks llm k rouw11 c, xl<'nt of a nnrt hwest-trc n<li ng f:oul1 lh111 Clll~ th e wcs1 litllb of the Wc,1 Fork ~ntidinc . ii "'"l' e.~tend norl hw.ml for :1 nrn,idera bll' ,lisl :nm,. Tl,e llorth-nnrthe.1 .,t-trentling Liull Lhal buun<l, !h e w~,t ,i,k of tile ~lillt:r Creek melange ZU llC i, r,p~c·ially pro11mrnccd on aeri" t pholugr"phs l,c~aus~ beds arc lrnm·atc<l al1lllg ib Lrac'i.:. An e:,st-wcst·I rcndiug r.,1111 show n in I h" ex1 rcrnc 11url liea,t porl of the n1:ip ""'l' alw he ol" "'"jn. sig nifi~:inec l,111 il s tiacc ls eonec:lle cl lo the \\CS! hy Ou:llern:n)' ,lcposils. Other f,111l1S "long wh ich m~jo r d isp laecrnenl n1:,r h:l\'G L"ken pl:ic'<-', ,rn1 llnly i11 the Hoh ro~k. bu l ctlsn ii, til e Qciin,11111 l'orin:1 tio 11 , :ire m;ippc<l in 1hc "'"" <nLLlll ,Jf 1hc Queers River :i nd"'" <llsrnssed llnclc r lhe >ec1io n on rh c Qui,i:,ull Fo rm:il iun .

Bei::H1.<c ae,y li tllc, if a11y. field c,·idcnee ,v,11 fonnd lo indi,·.,tc the dircd i"n and :mm11nt of ,lip of Ilic m"jor ll orthwc,1 . ,rnd non hea,l-lrt·nd ing faults , mosl :lTC <llown on (he en1-<s sc~lions as cilhcr ,lipping vert ica ll y or m, lligh.,m~lc r~\'c rse L111lts. IIO\'."Cl'cr, i1 wo11lrt nol be rn11lr;1rr In the .1•:.,ibhle d:01:1 if most nf these L111lts 11·crc in foct thrnst~, with 11ndcrllirusli11g 10 1hc ca.st. St1eh " model \\"OUld Ile ill kcep ;ng with the te,·to,u( fram ework of other pan, of the Olrmpic Pcni ns uln to tl, c ea.IL (Stcwu rt . 1970. 1971) .

REFERENCES CITED

Arno ld. Rulph . 1906. Geologkal 1·cconnails:uKc or t he ,·oust of the Olympic· l'eninmb, Wa.,hin_gto n; Geo!. Su,·. Arncrk" Bull.. v. 17, p. 451-4M\.

Arnow. Ralph: llann1l>.ll. H,ur> ld. l':llJ. the marine Tcrtia ri• stra tigraphl' or 11,c north Pacifi c rn,1sl nf America; A m. l'hiloi. So~. Pro,· .. "/ . 5J, 110 . 212. p. 55\).(,();i.

B:ildwin. E. M .. 1939. Late. Cenozoic dbstrophism ~lo ng !l ie Olympic· coast : WHhing(o11 SIH!e Univ. ~LS. tl1esis. 47 p.

(;kwer . S. L .. 1940. Browns Point Formaiion, Olympic l'cnin~u la . Wuslii ng ton I_Abs lra.·t) : Geol. Soc. ,\merica Bull., v. 51, nn. 11. p!. '.!. p. 2022.

Glover. S. L.. 194U(b). Plci<tnrcnc dcfo rmu1 iot1 in th~ Olyrnpi<- .-oasl al region. l\'asl1ing1on: Nort llwc:;t Sc1cn.-~. v. 24. 110. 3. ~. 69-71.

Glo1·cr. S. L. , 1945 . I'ifl c·c'n grolc,~ic ma~., ll f Lhc \\'Csl cu:1'1 c,f the Oi)'lll)li~ Pcnin s11la . Wa.sh ington . Wasliinglon Di-,. Mine~ and Gclll<1gr rn1pullltsl1ed maps. I : 11.000.

lkLCsscr, C. J_ 1972. Pal;-nolng)' .md pily togeog;r:,phka l s1gn1ficnnce of u b1c.Plt,isloc·cnu rnfugi um near KalJlod,. Washin gton · Quat ~mari• Re's .• ,·. 2, 110 . 2.p. 189·201

lleusiet. G. J .• 1974. Quatn11a1y vcgc \at io u, di111atc. u"d glacia l iu11 l>f llw !lt,h Ri1•e, valler. IV"shington: Genl. Soc. A111~ri~a 11 Bul l.. ,·. 85. \J. 1547-1560, I ll !1gs.

llorn. A. lJ., 19(,9, The scdimcnl,11-y ln~loq o f t l,e Q11immlt Forni:dion , wcs1em Wa sh ington: Univ. Southern Calif. unpuhhshcd ~LS. the.sis, l 7<J p.

Klei npell, R. it.. 19 38. ,l!loccne st m igraph)' o f C~lifornia; Am. Ass oc. Pct rn lCII m Geolog ist$. Tl1lsa , OklJ. , 4 50 p .. '.!'.! pk, 18 t~hle, .

Koch, ,\_ J. , 1963. Putrolo~y of t l,e ·•11011 Formatioll" of Terti~ry age in tile ,·ici nit r of tl,e R;tft Riwr. western Waslllngton: Univ . Wac;l1ing1on unpu lllis l,~d .1 1.S. lhec<i i . 41 p.

LuplOn. C. T., 1914 . Oil am] g"' in !hu ,vcsl ~rn [Mrl or the Olympic Penmsulc1, \Yaoh ing!on: U.S. Gt'ol. Su rscy flu lL 58 1-!J. p. 23-81

Ro u, W. \V., 19 70. F nr;11ni11ifn;i, st r:ililJ'"l'hY. and p:dwcology of tlrn Qui11:i11 ll f'nr m;i1io11. Poinl Grc n.·i lle - Rar"I R i,•cr r:tJC<,<l:il area. WashingtDn : Div. ~1i11es :rnd Geo]Ol\Y BLIII. 62. 41 p . . 3 pl<.

Rau, W. W., I <J7J. Get>h>i;Y of tl,e Wasl1 inglnll eu:i .,I llc l wee 11 Pni n\ Gre,ivillc ,rn,J the Hoh Rlwr: \V;, s]l ing1o n Geolog)-" an<l Farll, Resour~..::s Div. Bull. 66 , 58 p.

ll.m, W. W., 1974 . Pic rc·e 111c 111 s 1r11c l11re 011 1,;rups ,dong lhc W,,shi11g lun rn:,sl: Wnshi,igtnn Geolngl' :md Earlh RcsoLtrn,s Div .. Inf. Circ- . 51. 7 p. 7 figs.

11.cugan. A. B. , l <JO<J, Some nole.s on 1he Olympic Pe11i11.su1:t. W"sl1iu'._'.lu 11 : KCLnS:cs Acad. Sci . Trnns., ,. n , p. 131-2.lR.

Stewart. ]{. J .. 1970. Pctrologf, nict:imorp lusrn, Jnd scrurturnt rel at ions of graywJ ek~s in lhe western Olympic Pe ninsula , Waslnngton : S t,mfn , d Univ. u11publ isllcd 1'11 . D. lhesii, 115 p.

Stewart. R. J .• 197 1, Structura l fr~ mcll'or~ of (he western Olympia P~nimula. Waslnni;to n: Geol. So,·. Am~rica Ahilrncts wit h l'rogrum, v. 3 , no. 1, p. 20 I.

Wea-,er. C. E .• 191 6 TC'rtiary formal ions of we.i tem Wni hi11.~ton: W:is l1 i11g1m, Ge"I. Surv<'y Dull. I J , 327 p.

Wea,·e,·, C. E., 1937, T <:r lia ry .Slr:iligrnphy of w,·slnn \\oashi,•glon and north· western Oregon , Univ. of W:i Bh ingl011 Pubs. ii, Gcului;)'. ,. 4. 266 p.

\Vci,;.<enborn, A. L : Sna-:dy, I'. D.,Jr., 196H,S mrnn,11y rcpnrl un 1hci;cnlni;y :irnl mineral resources or Flalt<'rl' Rocks, ()Lli lby\J!c Needles, :o m\ Cnpalis National Wildlife Refuges . WJshin.i;ton. lJ .S. (;eal. SL1n"C'J' Hull. I lfiO-F, p. I'! · Fl 6.

CHECKLIST Foraminifera from the Hoh rock assemblage

(C - common: F - few : R = rarc; ? = qucstionablyidcntified l

R

F

R R

R

R

R

R

F

F

F ·: R

F

,,. R

C

R

? R

F

C

?

R

R

R ?

C

R

R

R

F

R

C

R

R

F

R

R

C R

C

?

R

F

R

LOCAT.,TTJES

R

F

F

C

R

R

? R

F

C

?

R

F

C

C

F

R R

R

C

R

R

R

F

F ..

C

F

R

F

,' C

R

F F

C

F

C

C

R

C

R

C

R

R

• S' •

R R

F

R

C

R

C R

R R

R

R R

R R

R R

R

F F

?

R C

F

R

C F

R

n

R

,.

C

R

R

C

R

?

R

R

R

' R

C

'

F

F

F

F

F

R

R

R

R

R

?

R

F

R

R

,·

R ?

C F

R

R

l'

C

R R

R

R

F

R

R

R ..

,-

F R

F

R F R

F

R R

F

F

R R

R

R

R R

R R

R !

F

R

R

F

R

C

C

C

?

F

F

F

R R ,,

C

R

R

R

C

?

F

R

F

R

0

' •

R

R

R

R C

?

R

F

R

R F

R

C

R

R

C

R

C

R F

R

R

R

R R

R

R

R

C

R

R

F

R

R

F F

F

F !•'

R

F

R

F

R

F C

,'

C

F

F

R

R

R

R

C

R

F F

F

F

R

R R

? R

R

?

F

R

F R R C

F

R

R

R

F

C

C

F

F'

C

F R

'! ?

' C

R

R R

R

F

H

C

R

C

?

C

C

R

F

'

R C

R R

R

R F

C

R

C

F

F

F

C

C

F R

R

F

R

R

C R

R

R

F

F

F

R

F

R

F

F R

R

F

C

R

R C

R

C

R

I•'

F

C

R

F

F

R

C

R

R

R

R

R

F

R

R

F

F

F

R

F

R

R

F

R

?

C

F

F

R .,

R R

R

R

C

l:?4"P' 4 7·4~·

i~14

\OXIOOO •tE"' ,~1, '9JOOOO>L ---== ~ "·"'~ ~-----~

~coo I u:r ,'..OUT ,

., I

35'

aocoo rrcr .~ORTl<I

R

,·

R

R

R R R

F

·P't~·L :.·~ .

'"'

'., Base map by U.S. Geological Survey, 1955 and 1956

R

::::f SEA LEVEL }

;ooo· f ,000'

1000'

SEA LEVEL

!OW •

2000' I ,ooo· 4000'

DES1HU(T JON ISLAN D SYNCLINE

B

0

"

,·,

. .• , " ,~

-,.

,,

'I

'

- C

<,

,.

' • ""-Ca

=·aa===='"'e<=='''~""-=="="===""='=~==='="'===•'•='===="'=seee=~="'OO'J "" ,.=,.;'==c'ss====ac====cS'=====c===="'====.s'· na~CT,as

CONTOUR INTERVAL 40 FEET DATUM IS M <•N SS. t EVEt

''°"""' '""'" '"""'"" '"' """ ""' ""' o• "''" "'"" ~"" '"'- ~«• o,,o;, O' "°' ,, " '"""""'" • " " G

1,

,,. i

6

'-,

I

p

!

' ""

_. 1". 2l N

- 4 . , [• ':>'4" \~

Geology by Weldon W. Rau, 1970- 1973 °'-;

WEST f·Ol{K ANT ICLINE KAI.ALOCI I CREEK ANTICLIN E MIN"K CREI::K ~1 EL,\NGE ZONE

Thst

..: . . c>"'' "'C ....•. ."T

A~OO'

Th~ Thss l 1000' ------ ~'": \ .. SEA LEVEL

,Sm 1000'

1 l Th} 2000'

3000'

4000'

Thsl

EXPLANAT ION

Oal

A ll uvium

U11co11v,/i1Ja1,,d .<ill. ~m,d. m,d gra,·i!I

Og

Alpine £1.tci~I d ri ft

01111w1.,h. ,·ilr, ,·~1.-d. grarel. mu/ till{')

UNCONFORMITY

lq

On111:1ull h irrn; ,1i r."

i foss,rc 10 ,n·/1-b,,l,hl .1i/1s1orn· ,md >"llm/>'{(me. and , ·vH}llr,r.w1.ue

UNCONFORMITY

Toss Ths Thcs Thrn

T/1</ . mm·,,·i,·,· N> 1lii11.!,rddrd .1i/1"1011 l'

'/'/11·x. 1hi11· fo 11!<\lium-bcddl'd silr.rro1w w,d s1111.-ls1011 r of a/,011/ ,·qua/ 11111<m11/>" T/1<. 11ws.1i,·c l rfl 1!1il'k ·bNidcd fi"l/_l'\\"11,·ke smu!s101w "J'lw.>. ,·om .,c· M n·i:r co m·s<'·f!:l"aiiil'd ;:-111y 1,·,:wk,• .m ,a,/.rn)llc . f!:rit mw' ,·011.1{!m11<1r,,r,,

T/1111. m<'l~n:,;c ro,-.~s of imr11sl"/ 1· y/1l',1N' li dnysrm,,: nm/ .1ill.l'I01w w 11 l<1i!!i11~ b/u,•,';, o (i.,dw·:JU<'d .l'ilr,·ro//l' . . r;,·ay\\",1Cke s,1mi<1011e . muJ 111!,·rr.! rulc-~11fr rr,d,s

"!'ill', rnfra11fr ro.-fr,· undifj,,,·,:ialPnh·il. i111 ·h,,!i11.~ ,·c1"l' lar1,;e blocks "'i!/J/11 m l'/111:;:- l'

rixk:.

Contact. ~pproxirna1~ly lllcate<l /)ashed wh,,re J..~·11d111io1wl: dOl! td wl:,•rc cm,n"led

~ '-"'O"'"" •• • • ·-· ··· ·-?

0

Faull D11i·/1 ed ll'li<'l'I'' iufNIHI; dorred 11·l1ffl! <Yml'l'llh·,i. q10erfrd ll'he,·,• 1111~.,1i0 11i1ble; lJ.

dowmhrow11 ,<ide: U. 11µ//Jrmrn side; mnrn".< imlicm e apµarcm d!!l'l'liOII of !ll<)fi(!/1

-+ A111idin~

Sbowi11g / / "fl('" of ,1;,:i11/ 11/ane 1111.! d1rccfio11 OJ ('ir'1'.~c; d11s1P cd wh e,·c t1/J{'l"Oxim111cl_1· lornlcd; do11nl \\.1,,,,,, ,v11,·e11/cd

-~ - A- = -Overtunw<l an t icl in<:

Slwwi11.~ mil'<' nxiGI pi,111e. direction of dip of /Jm1\,. mid "f'l""OXPIIW/1' //rnring am}

plw1g" of a xi.I'

j - --- ····· Syn dine

Showin.~ 1mc,: of !l.\"inl plm"" 11ml dirn·1io11 o} plw1x,•: das!rcd whae appmximal..t_, .

lm'a/ 1'/I; dolled 11 •/,cre ,:,m,~-,1,~/

- -f').-- "'SSf -

Over l11 rn ~rl syn dinc

S/Jou·i11.~ /racr, of axi,1/ p/1111<', dircctio lP of dip uf limb >. ,md appm.Yinw I I' hra11ng am! plm,.~~ ofuxh

Vc rtic,1l

S trike Jlld dip of b~di

0

llorirnnl" l

fl111/ "" iiic/i 11<•1/ .,:,·111ho l imiita rcs rap di,·,,,·11011 !mo\\'!!; 'in 011 r~ni,·,•.I .1'_l'm/,o! i11rli,·ar,,,, lrJ/J dil'e,·1im1

S t rike :md dip 01· sl1c:mng plane

"' Micmfos,il colkc!ing loc,!l ity

Sf<' !<an, 1971!. fm · localilie,· in fil l' Q11immll F,m,wri,m

Petroleum test wells

I, Kincaid-Sealtl c llnh tissoda!es Harlow tjn. I. 849.3 i"l S. uf N'/, cor. Jnd t h cne~ N. 85 E. for 834.5 ft. sc~. 20. T. 26 N .. R.

1.l W.: 1964: T.D. 5.U l J f,.

2 . Seattle-Hoh Oil A.m,ciatcs \\'oDdis Na. l. 2.'.!~3 ft S .. 670 ft E. o r NW. cor. sec. 22 . T. 26 N .. R. 1 J W.: 1963:T.D. 460

" J_ El Peso Product, Crnnp:inr L.,cer No.!'.!-!.

U,50 ft S .. l,670 ft W. of NE. rnr . sc,·. !2. T. 26 N .. R. 13 W.: 1975 : T.D.

5 .722 fl .

4. Union O il Comp,.n;' ufCulifornia ) !i lwauk<'e Land Co. NO. I. 350 ft S . f(OO fl W. c,I" NE cur. sec. 17. T. 26 N .. I\. 13 \\'.; 1948; T.D. 5.600

ft.

S. Okl:,tc .x Q;J and Gos Co. Okl:ilex S1V \!4SWV.. see. H,. T . 25 N .. R. I 3 \V ; 1937 : sh:itlow.

<,. General G"; and Elcdric Co. Stat e No. 1. \\·',~sec . 29 . ·r. 24 N. R. 12 W.: 1936: sh:,1101.1•.

7. Ol)'mp1e Pc lmleum Cu. C. C. Cnok-Quinaul t No 1. H67 ft S .. 572 fl E. N\li cor. of SF.~J SC'S:. 35. T. 2•1 N .• R. 13W.; l 947: T.D.

tAl '.! ft .

8. Qlympi,.; Pc1 rnku111 Co. C. C. Cook-()L1i11:111l t No. 2 . 1W111. U. S,11n No. 2) ~67 f l S . . 672 fl E. NV.. c•or. uf SE\~ :.ec. 35. 'J" . '.!~ N .. R. 13 W.; 1947 :T.D. 3.01 0 ft.

9. Indian Oil Co. (Q~inaull Oil Co.) Quinnull Na. I. NW'.~ sc,-. 35. T. 21 N .. R . 13 W. ; 1913 : T.D. 5611 fl.

10. Ind ian Oil Co. 1Qui ,i; rnlt Oil Co.) Qui11:ni lt lfo. 2. s~ me 1m~11i1 ,, '" 'l 1 "hov~ ); 19 1 3 : T. D. :nn rt.

Sense of mowmcnl sho"'" 0 11 faull s ,ep1"csen1; app aren t move me nt. Som~ movement may h ave bee n stnkc : lip . ~lovcmc nt on ,\lil ler Crn~k Fault inl.-rpretc<l as l~rgc ly ot nke slip (T - lowar<l. I! - away].

GEOLOGIC MAP GM - 13

ELK CREEK tlEL/\NGE ZONE KALALCX' H CREEK ANTICLIN E KALALOCJ-1 RlDCE SYNCLINE ~ ~

o, - , 'hm Thsl

II Ths l

. .,: ..

·-.. t~~<::-Thcii .. ·:\ .

;,,:.,;.:,

" :..,,;

~ u

" a

" c Qg~:::;:

Thsl

" ' "B' - 3000'

Thcs J l 2000• , ,!. Thss

: : : : .1- 1.,'.".·'>· ":'.'"_.,.~o~,°'' "":""'I 1000· ,·., SEIi

'""' : y -1 1000'

;.,,-

'°"" ,ooo· 4000"

LEVEL

GEOLOGIC MAP OF THE DESTRUCTION ISLAND AND TAHOLAH QUADRANGLES, WASHINGTON By

WELDON W RAU

1975