Pleistocene History of a Part of the Hocking River Valley, Ohio
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STATE OF OHIO FRANK J. LAUSCHE, Governor DEPARTMENT OF NATURAL RESOURCES i A. W. MARION, Director DIVISION OF GEOLOGICAL SURVEY JOHN H. MELVIN, Chief Report of Investigations No. 16 Pleistocene History of a Part of the Hocking River Valley, Ohio By WILLIAM M. MERRILL Reprinted from the OHIO JOURNAL OF SCIENCE Vol. Liii, No .. 3, pp. 143-158, May, 1953 PLEISTOCENE HISTORY OF A PART OF THE HOCKING RIVER VALLEY, OHI01 WILLIAM M. MERRILL Department of Geology, University of Illinois, Urbana Drainage modifications caused by glaciation in the Ohio River basin have been the subjects of numerous papers since late in the nineteenth century. Tight (1900, 1903) and Leverett (1902) were the first to present a coordinated picture of the pre-glacial drainage and the successive changes that occurred as a result of the several glacial advances into Ohio. Many shorter papers, by the same and other •COLUMBUS SCALE 0 10 20 30MILES OHi 0 writers, were published before and after these volumes. More recently, Stout and Lamb (1938) and Stout, Ver Steeg, and Lamb (1943) presented summaries of the drainage history of Ohio. These are based in part upon Tight's work but also introduce many new facts and give a more detailed account of the sequence of IPublished by permission of the Chief, Division of Geological Survey, Ohio Department of Natural Resources. THE Omo JOURNAL OF SCIENCE 53(3): 143, May, 1953. 144 WILLIAM M. MERRILL Vol. Liii drainage changes and their causal factors. The bulletin published by Stout, et al. (1943, pp. 98-106), includes a comprehensive bibliography of the literature through 1942. Evidence for four major stages of drainage with intervening glacial stages has been recognized in Ohio by Stout, et al. (1938; 1943). These stages have been summarized in columns 1-4, table 1. According to these writers (1938, pp. 66, 73, 76, 81; 1943, pp. 63, 83, 87, 96), all of the stages are represented in the Hocking Valley. The Hocking Valley chronology and the evidence presented by Stout and IN.DEX~;; H Of KI N iF C 0 UN TY, \ 0 HI 0 I J O I 2 3 4 I· N T 0 N S-:"'A"~1 L T C fl [ £ I\. -·-· ~ ILLINOIAN ORl~In~~~~~E~RY ,.;..:.:, -'= ~ ILLINOIAN ORl~rFT'~~~R.~~~~ his co-workers for the several stages in Hocking County are included in columns 5-9, table 1. Figures 1 and 2 are index maps on which the locations of Hocking County and the Hocking River (fig. 1) and the Hocking drainage in Hocking County (fig. 2) are shown. Detailed studies of the Valley by the writer were made north- west from the old divide southeast of Haydenville to the Fairfield-Hocking County line (figs. 2, 3). Topographic maps on which portions of the Valley in Hocking County appear include the Lancaster, Logan, and Zaleski quadrangles. Parts of some of the important tributaries appear on the New Lexington and Athens sheets. No. 3 PLEISTOCENE HISTORY 145 ACKNOWLEDGMENTS The writer is indebted to Dr. J. Osborn Fuller and Dr. Richard P. Goldthwait, both of Ohio State University, for helpful advice in the field and for their critica1 reading of the manuscript of this report. Dr. George W. White and Dr. Paul R. Shaffer, University of Illinois, also contributed valuable criticism of the manu- script. Dr. Myron T. Sturgeon, Ohio University, discussed several of the field problems with the writer. The Division of Geological Survey, Ohio Department of Natural Resources, financed the field work of which the study of this problem was a part. A grant from the University of Illinois Graduate Research Board was used to pay the cost of drafting the illustrations. TABLE 1 Drainage chronology of southeastern Ohio and the Hocking River Valley according to Stout, Ver Steeg, and Lamb (1938; 1943). 8ClU'l'HY-STBRN CHIO HOCKIHQ VAll.D' (1) (2) 13) (•) (0) (6) (71 8) l•l lh DHAINAG.& CLOSID RESOLTS HOCKING ~TS IN HOCKING EVIDmCE IN BOCKING 1'3 1.0CATICW or STAGI ••• VAi=! BY VAllEY DRAINAGE VALU!' DRAINAG:S HYJl'NATKIS STR!Al! SYSTllll SYSTlll ~~ Po•\- Recent Incision Of nlle7e HocIcing lnc1•1on ot pr.. 1111t Pre•ent dra1Dap ln glacial Wbcon.1a 1.nto Wiacomin R1nr valley into W!aoouill •1•t• .. drin RW or 'ftllQ' tra1u velley traia Lancaahr Wiaoonatn Wiaoou1A loo Depo•1Uoa ot Glacial. D1Tera1oo. or nreaa low terracH ot SI In glacier retre&t valley tre.1na; di- dl'fliD- rrom old valley 1.llto Wiscou1A 011MR noor vereio.n.1; reversal• gorge trom Rockbridge 1.encaator ... to Logu; depoai Uon ot 'ftl.lley train Poet• Wiaconain Inoiaicn ot T&l.leya Haydu• Kroetca ot 1111aolaa Pre-W1acom ta w.llq In &].aaial llUnoiu gll!.oiatloa into Illinoiaa Tille outw.llbf oomplete4 out into lllinoiaa ou.i- .. drift NW ot 'ft.U.1 traine JU.Yer outt1Dg ot gorp SJ: we.llb; gorse SI ot lla74en tancu'&er ot He,.SenT1lle viU. lll1aoW -·Illiaoiu loo Ponding of Deep Glacial Depoa1 tioa. ot w.lley High terracaa ot nu.. In glacier ratl'ff'& Stage dre.1uge; dftin- train; reTereal of noiu outwe.•h elopiJlg •• near depoai tioa ot d1rect1oo ct flaw la Laacaater ftllOJ' trelu; ... vall•r tram NW to SI; .. lllftD.y dlnrtilou; dn•lopynt; ot Uond.1t.7 reveraal• Creek; initial cut- Ung ot gorg• SI of Ha7d•DT1lle Doop Interglacial Illinoian Deep inciaion ot tanot.sM Cutting ot deep Xl.evaUou oa bu.ried , In divide . nlle7 now tilled ... (Yarmouth?) glaciation w.lle7a below Tee.ya tor bedrOck floor ot Hook- SE or Har- ftllQ" tlOOrtl JU.Tor with later glacial 1.og Vall91 and in de.aville outwa•b abandoned wller . HglMll.ta Pro- Eauu (?) loo l'ond.irg ot T..,. 'Tinger" Ponding ot Boolcinc llintord ailt OA n- In d1Tid• Illinoian r•tnat aya'&•I d•pod UOIL lab• R1T•Z' NW Of d1T1d• amaata ot nll•1 floor SI ot Har• glacilll ot boulder•. gravel, SI ot Harda.a.Tilla of: Lopn Rinr dODTille samt, and Mintord a1lt on Teqa Talley tloora; lllllfl¥ diTOZ'8iOAll; rev areal• Pliocene- Pr~ Develoimem or • Logon DeTeloi-eni ot tbe Remnant• ot •ia &Ad In d1Tide ..... Early Illlnole.n mtun drainage R1'9r Original Hooking tr1but•l'7 Tal.1•1 tloon .. SK or Hay- Pleiatooene (KeDH.D?) ayatem Wali.1 draimce Talley rea'&r1ct1ona; d•artlle glaciation .,.,. barbed tribv.'&ariH; widening Of •1& Wllq tie n tram gorp SB ot la.7d•Tille; abandon.a. •ller aepen'&• LOGAN RIVER (TEAYS STAGE) According to Stout, et al. (1938, p. 66; 104:~. p. 63), during the Teays (pre- glacial) stage, the Logan River (fig. 3) flowed northwest through the present valley from the divide near Haydenville in northeastern Starr Twp., Hocking County, as far as Logan. From Logan to Rockbridge (figs. 3, 6), it flowed about one mile south of the existing Hocking Valley in what are now the valleys of Clear Fork and a tributary to Buck Run, re-entering the present valley at Rockbridge. Evidences for the existence and course of this early stream are the restriction of the present valley at the position of the old divide southeast of Haydenville; widening of the valley to the northwest, opposite to the direction of flow of the Hocking River; numerous barbed tributaries; and the presence of an old valley segment, now filled with glacial gravel, from Logan to Rockbridge. These writers 146 WILLIAM M. MERRILL Vol. LIII (1938, p. 66; 1943, p. 63) also point out the existence of old floor levels covered with "Minford or other silts" near Union Furnace at 800 feet, near Haydenville at 780 feet, at Webb Summit at 7~0 feet, and near Logan at 770 feet (fig. 3). Re-examination of these localities by the writer suggests that there are no floor levels present that are residual from the final Teays Valley. Although good exposures of the material in the divide at Webb Summit are present in a railroad cut and supplementary auger borings were made, no ''Minford or other silts" were found in this locality. Residual mantle on bedrock of Pennsylvanian age underlies the surface. In the vicinity of Haydenville, the only point which w l? ~ <( w f- z (/) <( ~ >-(/) :c v c:: 0 0 ,: z >- I- w z 0 "'_J :> z 0 I- <( I' _J <.) <( ... <( C) z z <( 0 o> :;: ..J <.) .. I z 0 l? :c ;:';I z ~ I 3 ~ I I u I w 0 c:: I Cl.. No. 3 PLEISTOCENE HISTORY 147 approaches the elevation noted by Stout (780 feet) and which might conceivably be underlain by Minford silt is in the NW ~ sec. 13, Green Twp., about one-half mile north of the town. No rock floor is exposed there, and the material under- lying the surface, examined in auger borings, is glacial gravel. On the basis of its lithology and the surface elevation (table 2; fig. 5; the gravel is identified as Illinoian. Several rock terraces overlain by gravel exposed west of Logan on the south side of the Hocking Valley in SW sec. 10 and SE sec. 9, Falls Twp., are believed to be the features "near Logan" interpreted by Stout to be Logan River • floor levels. The rock terraces are cut in the Black Hand sandstone and in every case, the rock surface is stratigraphically very close to the top of the Black Hand. Detailed mapping of the bedrock by the writer showed that the east flank of a depositional nose of the Black Hand crosses the Hocking Valley in this vicinity. The surface of the Black Hand here dips steeply eastward, passing under cover at Logan.