N W Y 5T E. 32nd ANNUAL MEETING. HAMILTON COLLEGE CLINTON, NEW YORK MAY, 1960

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1 I I N W Y 5T E GE LO Ie L so IA ION 32nd ANNUAL MEETING. HAMILTON COLLEGE CLINTON, NEW YORK MAY, 1960

3 GUIDEBOOK FOR FIELD TRIPS 32nd Annual Meeting of the NEW YORK STATE GEOLOGICAL ASSOCIATION David Hawley prepared by and Donald B. Potter HAMILTON COLLEGE Clinton, New York May 13-14, 1960

5 CONTENTS Page Stratigraphie column i Location map, field trip stops iv Geologic sketch map, Utica-Little Falls area opp. A-l Section A - Frankfort Gulph General description, Trip A A-I Road log, Trip A. A-3 Section B - Clinton hematite mine General description, Trip B Section C - Precambrian Geologic map of Adirondack Mountains (Fig. C-l) opp. Summary of Precambrian geology of Adirondacks Geologic map, Remsen, Ohio, & Piseco Lake quadrangles. opp. General description, Trip C Road log, Trip C, group A Road log, Trip C, group B References for Section C Sources for geologic map of Adirondacks Section D - Little Falls area to Trenton Gorge General description, Trip D Summary 'Jf geology of L1 ttle Falls quadrangle, by James R. Dunn Road log, Trip D. Geologie Map of New York State (courtesy ot the Sta.te Geological Survey) B-I C-l C-l C-10 C-22 c D-l n.. 5 D-9

7 1 STRATIGRAPHIC COLU1U{ - UTICA AND LITTLE FALLS QUADRANGLES SYSTEM SERIES Group FORMATION Member SILURIAN CAYUGAN Salina CAMILLUS NIAGARAN Lockport ILION VERNON Clinton HERKIMER WILLOWVALE SAUQUOIT ONEIDA Character of rocks Mottled reddish and yellowishgreen, and drab colored calcareous shale with flaggy dolomite beds. Thickness in feet ' ' Red crumbly shale with green layers and spots, and a green zone at base. disconformity Gray-black dolomitic shale with interbedded dolomite beds, some of which contain stromatoporoids. Interbedded gray sandy dolomite, dolomitic sandstone, and shale. with a 3-foot hematitic, sandy, fossiliferous,dolomiticcalcareous ledge at base. Green, thin-bedded shale with interbeds of fine-grained calcareous sandstone. At base is a 2i-foot bed of red, oolitic hema.tite. Interbedded sandstone a.nd shale with thin conglomerate beds. Cross-bedding is common. Quartz-pebble conglomerate and sandstone, in massive beds. Four to six inches of conglomerate at base is richly impregnated 60' 80' ' 25-30

8 ii ORDOVICIAN CINCINNATIAN Eden FRANKFORT Moyer with pyrite. Top is gradational into overlying Sauquoit. dis conformity Gray, silty to areaceous with beds of sandstone. Hasenclever Harter CHAMPLAINIAN Trenton UTICA shale, Finely cross-laminated, thinbedded fine sandstone and inte bedded greenish shale. Greenish-gray laminated shale which grades into black shale of the Utica, below. 400' ' ' Finely laminated black shale. disconformity COBOURG Steuben 60' Thick-bedded, cross-laminated calcarenite. Rust 115' Mostly thin limestone beds with intercalated calcareous shale. DENMARK Russia Poland. SHOREHAM Rathbun Black, bituminous, impure limestone with irregular shale interbeds. The upper 12' is calcareous mudstone and brown-vreathering calcareous argillite. Interbedded gray-black limestone and calcareous Shale. 70' 60' 9' Interbeds of coquina-calcarenite, calcilutite, and calcareous shale. lower Shoreham 35-45' Thin-bedded limestone interbedded w1th calcareous shale.

9 111 KIRKFIELD 4-45' Thin-bedded limestone interbedded with calcareous shale. Thick calcarenite beds at top. ROCKLAND 0-13 ' Black, dark-weathering, somewhat cherty limestone, with shale partings toward the southeast. Missing near boundary between quadrangles. disconfcrrnity. Black River LOWVILLE ' Upper part is light-gray weathering, medium gray calcilutite. Lower part is gray-brown, heavy-ledged, sandy and muddy limestone. disconformity 0 CANADIAN TRIBES HILL Limestone muddy and disconformity CAMBRIAN CRO.IXIAN PRECAMBRIAN LITTLE FALLS and dolomite, commonly sandy ' Up to 450 t Dolomite, sandy dolomite, and dolomitic sandstone. Conglomerate at base. unconformi ty. 0 (General sequence for southern Ad1rondaoks) Hornblende-granite gneiss and biotitegranite gneiss (major deformation and metamorphism) Pyroxene-quartz-syenite gneiss Anorthosite-gabbro Grenville metasediments, including marble, paragneiss, quartzite, and amphib61ite (some may be metagabbro or metavolcanic).

10 o (Q) l a P/seco Lake 0"< ('"I ((..fje; 't.\ e-i.\ (, ({:!!J L OCa 1/0/7 o/'.5 /;:;j Trt"ps A 1 C, and D MJes I I..J t.at ClE!O 'Po N C/", fon o 9' '-t.. f

11 Ou :I, \ p '" GEOLOGIC SKETCH MAP UTICA-LITTLE FALLS AREA W QUATERNARY DEPOSITS VERNON 8 CAMILLUS FMS. [E] ILION SH. 8 CLINTON GRP. 00 FRANKFORT SH. IQ!!] UTICA SH. LOWVILLE 8 TRENTON LIMESTONES I!J LITTLE FALLS DOLOMITE I!!J PRECAMBRIAN... FORMATION CONTACTS o SCALE IN MILES 0-2 FIELD TRIP STOPS A'''' FAULT WITH DOWNTHROW +-- REMSEN QUADRANGLE (AFTER MILLER, 1909) r i pi y ):: ::::::\& l. I '.....,,:.",0 0, "J"OJ"',... to...,.ti Q :" 1'...: '.... '0... c1 ".'" ': 0"...,\ ;... h :,''V'.....:::., ()Cco, '( "C\'?; k \>:<:\:.... v (......, j (...../ ) Qf,... \ i..... ro--... :< " UTI C A o /of "'''', i..., !'... _...,... k '..... M,. '''1 :'\,... : :.._' \I......} V 18'1' ,.. 01\\ '-.... \,J... \....so.!ii ) i f-..., Of... \ I'...;. r{,... r,:: Of', :.-\,... j,; '.;..... ".J...,... / l-...j'" '''t. \..... I , \ Sc \...."1 _.\ C;, :> l......,) Ie... S. '1..,... I..., :' ".. c;::::-'_ (... I.. -.l f..... A-I "\ ". t: osc "..... ::.sf\. ';, Of..... c,;......, :..... i Ic ::.:... ".\ " '0 '" t'... C' '. c:. '::'.. "' i '\ '..,.....: L '. \. E... or?. '0 c:a,1 "'\ ""': '0,:,:...- -, i 1:::",,/"'(, o i.. \ i... ::::..., "':... '!. l'.... ".... "':..., M <' > ".,) t"\...:..'.\.w \ ;-...:...: "... Of ' ,... } l Ok :. :.., i I." :: '7 '. :.... ' 7 :... '.?... \... : ! Ok l...: A. : '. O\c Gle.oo ' ::- ' :.., ' ::: \,.....:..... '. 0. """" :... l... :... : l,,/......""... " ". >;./ P& '. \ 010.: / E ".'.' UTICA QUADRANGLE (AFTER KAY,1953) LITTLE FALLS QUADRANGLE (AFTER CUSHING, 1905),.... / p( j.... I I... I..' '''' " I,,

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