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MARGINAL NOTES Ministry of Hon. Alan W. Pope Minister Natural Geological mapping of the Arnprior-Quyon area involved the re-exami John R. Sloan nation of an area mapped by M E. Wilson (1924) and A.E Wilson, Kir- Resources Deputy Minister wan Livingstone, and Hill (1973) for the Geological Survey of Canada. Ontario The area lies partially within the Ottawa-St. Lawrence Lowland, which is Ontario Geological characterized by Paleozoic bedrock transected by a system of normal S rv DATA CERT faults striking northeast to southeast ONTARIO GEOLOGICAL SU tVF.Y The main physiographic features are the Ottawa River, which flows southeastward to northeastward and constitutes the northern boundary MAP P. 2726 NOV 81984 of the map area; the Mississippi River, which flows northward through GEOLOGICAL SERIES - PRELIMI ^ARY MAP the area: and the Madawaska River, which flows eastward lo northward tnrough the northwestern part of the^area. The southeastern part of the area forms part of the Smiths Falls Limestone Plain, and the northern part PALEOZOIC GEOLOGY RECEIVED of the area forms part of the Ottawa Valley Clay Plains (Chapman and Putnam 1951, 1966). ARNPRIOR - QUYOJVAREA~~ Paleozoic bedrock outcrop is generally abundant within the Smiths Falls SOUTHERN ONTARIO Limestone Plain, and fairly common in a zone up to 10 km wide immedi OTTAWA ately south of the Ottawa River, and consists of cliff and quarry sections and areas of bedrock pavement Elsewhere a thick surficial sequence ^ - ——— -. - ___ PONTIAC I'OL'NTY \ commonly overlies the bedrock, and outcrop is sparse, Excavation to a Scale 1:50 000 depth of up to 4 m for the natural gas pipeline of Trans Canada Pipelines Mile 1 Q 1 Mi Limited resulted in the availability of bedrock exposure along much of the pipeline route in the southeastern part of the map area. Melres ©000 O l Kilometre Surficial deposits have a maximum thickness in the order of 50 m. They drumlinized), ice- consist of iill (which occurs as till plains, sometimes NTS References. 31F/8, 31F/9 contact stratified drift, marine (Champlain Sea) clay, sand, and gravel and Recent alluvial sand and silt and organic bog deposits (Richard ODM-GSC Aeromagnetic Maps: 7G ??1G 1976a, 1976b). OGS Geological Compilalion Map: 2418 The Ontario Ministry of Transportation and Communications drilled two holes to a depth of 9.1 m at locality Arnprior (A-1). (Huntley Township, Concession XI, Lot 19) (Rogers 1981) 1984 Government of Ontario

PRECAMBRIAN-PALEOZOIC BOUNDARY Parts of this publication may be quoted if credit is given and the material Precambrian rock outcrops in the southwestern part of the map area, is properly referenced. and in a belt approximately 5 km wide which trends east-southeastward across the area. A relatively small Precambrian outcrop area occuis in d This map is published with the permission of V G. Milne, Director, On tario Geological Survey. fault block in the southeastern part of the map area. The unconformably overlying Paleozoic rock outcrops to the north and south of the east- southeast-trending Precambrian outcrop belt. A fault contact generally separates Precambrian and Paleozoic outcrop areas, but unfauited con tacts exist in the southern and eastern parts of the map area Bedding in INDEX TO the Paleozoic rock, normally close lo horizontal, dips relatively steeply PRELIMINARY PALEOZOIC adjacent to contacts with Precambrian rock. GEOLOGICAL. MAPS IN THIS ARtA PALEOZOIC STRATIGRAPHY The logs for the Geological Survey of Canada Lebreton well (drilled in the Ottawa area lo the easl), and for the Ontario Ministry of Natural Re sources (Eastern Region) L-C well (drilled in the Carleton Place area to the south), indicate that the maximum thickness of Paleozoic rock occur ring in the map area is approximately 310 m. The common occurrence of normal faults within the map area has re sulted in the exposure of Paleozoic rock at various levels within the se quence. Equivalent rock units occur in the Montreal area, and units equivalent to those of the uppermost pail of the sequence occur in southern Ontario west of the Frontenac Axis. The uppermost units of the Arnprior-Quyon OTTAWA area are herein referred to as the Gull River Formation, Bobcaygeon For mation, and Verulam Formation (Units A to C, Unit D, and Unit E. respec tively, of Williams and Wolf 1982, p.133). This is in accordance with Lib erty©s (1967) recommendation that the lithostratigraphic nomenclature of the region to the west of the Frontenac Axis (Liberty 1969) be applied to

the Ottawa Valley, to replace the term "Ottawa Formation". It is recom LAKE O N © A X l O © mended that the name ©Ottawa© be elevated to Group status. Covey Hill Formation (Cambro-Ordovician) Feldspathic conglomeratic quartz sandstone unconformably overlying the Precambrian basement, and tentatively assigned to the Covey Hill LEGEND Formation (Unit 1) as proposed by Williams, Rae, and Wolf (I984a), oc curs in areas to the east but may not exist in the Arnpnor-Quyon map PHANEROZOIC area; it does not outcrop, and is absent from both wells (L-C and L-D) PALEOZOIC drilled into the Precambrian by the Ontario Ministry of Natural Resources UPPER ORDOVICIAN (Eastern Region) in the Carleton Place area to the-south (Williams and Wolf 1984). Queenston Formation 1 : red to light greenish grey sill- ,\i.©lav" Val lev© stone and shale, with interbeds of silty bioclastic lime Nepean Formation (Cambro-Ordovician) stone in lower part The Nepean Formation (Unit 2) (Wilson 1946, p. 10-12) outcrops in sev eral fault blocks in the southern and eastern parts of the map area. The Carlsbad Formation1 : interbedded dark grey shale, formation was named for Nepean Township, where a roadcut 2 km fossiliferous calcareous siltstone, and silty bioclastic southwest of the Moodie Drive exit on the Queensway (highway 417) has limestone been proposed as a principal reference section by Greggs and Bond (1972, 1977) and as the type section by Brand and Rust (1977a, 1977b). Billings Formation©: dark brown to black shale, with la The log tor drillhole L-C (Williams and Wolf 1984) indicates a total thick minations of calcareous siltstone ness of 31 1 m The formation consists primarily of medium-grained, well sorted quartz Eastview Formation1 - interbedded sublithographic to part of the for sandstone. Fine-grained beds predominate in the upper '-v VX \ ©fftf l'A\ tS fine crystalline limestone and dark brown to dark grey mation, and interbeds up (o a few metres thick of quartz-pebble con shale glomerate occur The quartz grains are generally well rounded The fresh surface is white to light brown, and small rusty spots are common. MIDDLE-UPPER ORDOVICIAN The weathered surface ranges from pure white to dark brown to brick red, and is usually cream to light brown. The unit is generally medium Lindsay Formation1 : sublithographic to fine crystalline bedded, but be©ds range from very thin to massive (up to 2 metres thick). limestone, nodular in part, with interbeds of calcaren Based on the nature of the cementing material, there are 2 common ite and shale types of sandstone: a hard quartzite (resulting from secondary quartz overgrowth) and a more friable rock (resulting from calcite cement). Crossbedding is common, and various types of tracelossils occur Verulam Formation© interbedded bioclastic limestone, The Nepean Formation is equivalent to the Cairnside Member of the sublithographic to fine crystalline limestone, and shale Chateauguay Formation of the Montreal area. March Formation (Lower Ordovician) Bobcaygeon Formation interbedded calcarenite and sublithographic to line crystalline limestone The March Formation (Unit 3) (Wilson T 946, p. 12-14) outcrops in several" fault blocks in the southern and eastern parts of the map area. The log for drillhole L-C (Williams and Wolf 1984) indicates.a total thickness of Gut! River Formation: interbedded silty dolostone, li 8 1 m. thographic to tine cryslafline limestone, oolitic lime stone, shale, and fine-grained calcareous quartz The formation consists of interbedded quartz sandstone, sandy dolo sandstone stone, and dolostone. The lower contact is the base of the lowermost do lomitic bed. and the upper contact is the top of the uppermost sandy Rockcliffe Formation: interbedded fine grained light bed. There is a net upward decrease in sand content. Intraformational greenish grey quartz sandstone, shaly limestone, and conglomerate commonly occurs in the lower part of the formation: it con shale; locally conglomeratic at base; interbeds of cal sists of clasts of muddy doloslone in a matrix of sandstone or sandy do carenite (St Martin Member, 5a) and silty dolostone in lostone. The sandstone beds, identical m lithology lo Ihose of the Nep upper part ean Formation, are generally fine to medium grained, .weather light brown to light yellowish brown, and inc©ude both quartz- and calcite-ce- LOWER ORDOVICIAN mented types. A few thin beds of coarse-grained light green sandstone occur, the green colour being due to minor glauconite (C. Rogers, Pe Oxford Formation- sublithographic to fine crystalline trographer, Ontario Ministry of Transportation and Communications, per dolostone sonal communication, 1982) The sandy dolostone and dolostone beds brownish grey. The sand are fine crystalline and weather light grey to March Formaliarr interbedded quartz sandstone, lithologies are thin to thick grains in the sandy dolostone are coarse. All sandy dolostone and dolostone bedded, in the dolomitic beds, algal mals and stromatolites are com occur along some bedding planes. mon, and abundant gastropod shells CAMBRO-ORDOVICIAN The March Formation©is equivalent to the Norton Creek Member of the Chareauguay Formation of the Montreal area. Mepean Formation: fine- to coarse-grained quartz sandstone, partially calcareous in upper part Oxford Formation (Lower Ordovician) The Oxford Formation (Unit 4) (Wilson 1946, p.14-16) outcrops in several Covey Hill Formation1 : noncalcareous, feldspathic, fault blocks throughout the map area. A total thickness of 62.2 m was in fine- to coarse-grained quartz sandstone and quartz- tersected in the Lebreton well (Williams. Rae, and Wolf l984a). pebble conglomerate.

The formation consists of light to dark grey, thin- to thick-bedded, subli UNCONFORMITY thographic to fine-crystalline dolostone. The weathered surface is light grey to buff to reddish brown Stromatolites and calcite-tilled vugs are common, The Oxford Formation is equivalent to the Beauharnois Formation of the Undifferentiafed metamorphic and igneous rocks Mont real area. ©This unit does not outcrop in this map area Rockcliffe Formation (Middle Ordovician) The Rockcliffe Formation (Unit 5) (Wilson 1946. p.17-19) outcrops in sev eral fault blocks in the eastern and northern parts of the map area. A total thickness of 59.4 metres was intersected in the Lebreton well (Williams, Rae, and Wolfe 1984a). The formation consists of interbedded light greenish grey quartz sand stone and green and maroon shale. A basal conglomerate occurs local ly, and interbeds of silty dolostone occur in the upper part of the forma tion The Rockcliffe Formation is equivalent to the Laval Formation of the SYMBOLS Montreal area Bedrock outcrop Gull River Formation (Middle Ordovician) Geological boundary, position approximate The Gull River Formation (Unit 6) outcrops in several fault blocks throughout the map area. A total thickness of 42.7 m was intersected in l he Lebreton well (Williams. Rae, and Wolf 1984a). Fault, position approximate; arrow indicates downthrown side The formation consists of interbedded silty dolostone, lithographic to fine crystalline limestone, shale, and fine-grained calcareous quartz sand stone. The silty dolostone is pale greenish grey to medium grey, subli Carbonatite dike thographic to fine crystalline, calcitic to noncalcitic, and thin- to thick- bedded: it weathers buff to reddish brown, and conchoidal fractures and Qu a rry calcite-filled vugs are common. The lithographic to fine crystalline lime stone is tan to dark grey and medium to thick bedded, and weathers Drillhole, with reference number* _ 5 white to bluish grey; intraclasts, oolites, and white calcite ©eyes© (result and upper members (Units ing in ©birdseye1 texture) are common. Lower "Reference numbers: A and B and Unit C, respectively, of Williams and Wolf 1982) are mappa- ble. The basal bed of the lower member is a black ostracod-bearing N *^M - A-1 OMTC Arnprior 111 shale approximately 1 m ihick which has been described by Raymond (1911, p.190), and the upper contact is the top of the uppermost dolomi tic bed. The upper member consists of lithographic to fine crystalline limestone, and its upper contact is the top of the uppermost lithographic bed. The upper beds of the upper member contain abundant Tetradium The Gull River Formation is equivalent to the Pamelia and Lowville For SOURCES OF INFORMATION mations of the Montreal area. Bobcaygeon Formation (Middle Ordovician) Base maps from Map 31F/8 (Arnprior) and 31F/9 (Quyon) of the National Topographic Series. The Bobcaygeon Formation (Unit 7) (Unit D of Williams and Wolf 1982) outcrops in several fault blocks throughout the map area. A total thick Subsurface information mainly from Ontario Ministry of Natural Re ness of 86.6 m was intersected in the Lebreton well (Williams, Rae, and sources Oil and Gas Well Summary Cards, on file with Petroleum Re Wolf I984a). sources Section, London, Ontario. consists of interbedded calcarenite and sublithographic Magnetic declination approximately 12"26©W in 1982. The formation -."..-r* 1-' f I*,VN -. to fine crystalline limestone. The calcarenite is light to medium grey and k •-•i-n^-rv VWV Contour interval: 25 feet. thin bedded to massive, and weathers bluish to brownish grey; cross- \- - - ~. ©Nf v^\ jr y" Metric Conversion Factor: 1 foot = 0.3048 m bedding, intraclasts, and stylolites are common. The sublithographic to vQk•^ oO ^ " ^ *-SX \^v . fine crystalline limestone is grey to brownish grey and thin bedded to y /sx- w **t: ___A ' 4.V15 massive, and weathers bluish to brownish grey. Chert occurs as nodules 78'30' 76©00© up to 2 cm in diameter, and beds and lenses up to 5 cm thick. Lower and upper members are mappable, the contact between the 2 members be ing the base of the lowermost calcarenite bed. ally northwest lopographic lows are commonly fault-controlled; exam Different fault blocks commonly have distinctive topographic features. ing: Pakenham (Pakenham Township, concession XI, lot 11) (Barnes 20, concession 7 (Wilson 1924, p.103). Nine hundred and five thousand 1966: The Physiography of Southern Ontario, Second Edition; Ontario Research 1969: Paleozoic Geology of the Lake Simcoe Area, Ontario; Geological Survey of Storey, C C , and Vos, M.A CREDITS The Bobcaygeon Formation is equivalent to the Leray. Ouareau, Mile ples are the courses of the Ottawa and Madawaska Rivers in the north These features include the hummocky topography of the fault blocks in 1967. p.238; Kay 1968. p 167-168; Barnes 1968 p 171); Braeside South tons of ore grading approximately 5^o lead were mined during 1914 to Foundation, Toronto, 386p. Canada, Memoir 355, 201 p. 1981: Industrial Minerals of the Pembroke-Renfrew Area (Part 2). Ontario Geologi End, and Deschambault Formations of the Montreal area. western part of the map area, of the Mississippi River and Cody Creek m which Precambrian rock outcrops; and the lowlands (in which the Rock- (McNab Township, concession B lot 11) (Satterly 1945 : p 105); Sand 1931 from the Kingdom mine. Greggs, R.G , and Bond, l J Raymond P E cal Survey, Mineral Deposits Circular 22, 214p. Geology by D.A. Williams and H.H Wolf and A.M. Hae, 1982 Verulam Formation (Middle Ordovician) the southern part of the area, and of Buckham Bay and Constance Creek cliffe, Gull River, and Verulam Formations outcrop) and uplands (in Point (McNab Township concession B, lots 18 and 19) (Satterly 1945 1972: A Principal Reference Section Proposed for the Nepean Formation of Prob 1911: Preliminary Notes on the "Chazy" Formation in the Vicinity of Ottawa; The Williams. D A., Rae. A.M., and Wolf R.R. . in the northeastern part of the area, Bedding, normally close to horizon which the Bobcaygeon Formation outcrops) of the southern part of the p. 105-106): and Rhoddys Bay (McNab Township, concession B, lot 21) REFERENCES able Tremadocian Age near Ottawa, Ontario; Canadian Journal of Earth Ottawa Naturalist, Volume 24, Number 11, p.189-197. 1984a: Paleozoic Geology ol the Ottawa Area; Ontario Geological Survey, Map Every possible effort has been made to ensure the accuracy of the in The Verulam Formation (Unit 8) (Unit E of .Williams and Wolf 1982) out tal, often dips steeply adjacent to faults and within fault zones. Fault area. (Satterly 1945, p.106). Sciences, Volume 9. p.933-941. P.2716, Geological Series-Preliminary Map. scale 1 50000. Barnes C R Richard, S.H, formation presented on this map; however, the Ontario Ministry of Natu crops m the southeastern part of the map area, A total thickness of 32.0 traces are generally straight but are commonly curved in the vicinity of Future aggregate quarries could be located within the March, Oxford, 1967 Stratigraphy and Sedimentary Environments of some Wilderness (Ordovi 1977: The Aye and Upper Boundary of the Nepean Formation m its Type Section 1976a: Arnprior Surficial Geology; Geological Survey of Canada, Open File 362 1984b: Paleozoic Geology of the Russell-Thurso Area: Ontario Geological Survey ral Resources does not assume any liability lor errors thai may occur. m was intersected in the Russell well (Williams, Rae, and Wolf 1984b), Vol fault junctions, which generajly consist of a single fault branching from ECONOMIC GEOLOGY Gull River, and Bobcaygeon Formations. The March Formation is a cian) Limestones, Ottawa Valley, Ontario, Canadian Journal of Earth Sci near Ottawa, Ontario 1 Discussion; Canadian Journal of Earth Sciences, 1976b: Quyon Surficial Geology; Geological Survey of Canada, Open File 363. Map P 2717, Geological Series Preliminary Map. scale 1 -50 000 Users may wish lo verify critical information; sources include both the drilled in the Russell-Thurso area to the east. another fault. Many fault junctions, involving a larger number of faults, ences, Volume 4, p.209-244. ume 14. p.2669-2671. Williams, D A., and Wolf, R.R references listed here, and information on file at the Resident or Regional source of skid-resistant aggregate (Rogers 1980). Dolomitic limestone Rogers. C.A occur within the map area. The displacement at a fault junction is ap The only quarry in the Oxford Formation in this map area, Arnprior East Hewitt, D F 1982: Paleozoic Geology ot the Northern Part of the Ottawa-St. Lawrence Low Geologist©s office and the Mining Recorder©s office nearest the area. The formation consists of interbedded biocalcarenite, calcarenite, subli beds in the lower member of the Gull River Formation and cherty beds in 1968: Reply: Stratigraphy and Sedimentary Environments of some Wilderness 1980: Search for Skid Resistant Aggregates in Eastern Ontario. Interim Report; proximately equal to the sum of the displacements along each set of (McNab Township, concession C, lot 1) (Satterly 1945, p.106), is now 1964. The Limestone Industries of Ontario, 1958-1963; Ontario Department ol land. Southern Ontario; Ontario Geolog-cal Survey, Miscellaneous Paper thographic to fine crystalline limestone, and calcareous shale. The bio the Bobcaygeon Formation are alkali-reactive, and are unacceptable toi (Ordovician) Limestones. Ottawa Vahey, Ontario; Canadian Journal ot Earth Ontario Ministry of Transportation and Communications, Report EM-36, faults which branches from the junction. abandoned Mines, Industrial Mineral Report 13 77p. Accompanied by Map 2059, scale 106. p.132-134. calcarenite, calcarenite, and sublithographic to fine crystalline limestone use as concrete aggregate unless a low-alkali cement is used (Rogers Sciences. Volume 5, p 169-172. 72p 1-1 013 760 or 1 inch to 16 miles Issued 1984 to medium bedded, and weather outcrop in fault blocks in the southern and extreme The Gull River and Bobcaygeon Formations are quarried for use as ag 1983). 1984. Daleozoic Geology of the Carleton Place Area; Ontario Geological Survey, are grey to brownish grey and very thin The oldest strata Brand, U,. and Rust, B,R Kay, G.M 1981: Search for Further Deposits of Sandy Dolostone in Eastern Ontario; Ontario gregate. At the present lime licensed operations are the Almonte quarry Map P.2725, Geological Series- Preliminary Map, scafe 1:50 000. bluish grey to brown. Shale interbeds are up to 10 cm thick. northwestern parts of the map area, and in a belt trending east-south Post-Ordovician calcite-fluorite-barite-celestite-galBna-sphalfirite-chal- 1977a: The Age and Upper Boundary ol the Nepean formation in its Type Section 1942: Ottawa-Bonnechere Graben and -ake Ontario Homocline; Geological So Ministry of Transportation and Communications, unpublished report of Burntlands Aggregate Limited (Ramsay Township, concession XII, The Verulam Formation is equivalent to the Montreal Formation of the easterly across the northern part of the area; and the youngest strata out copyrite veins, striking east-west to southeast, occur m southeastern On near Ottawa, Ontario; Canadian Journal of Earth Sciences, Volume 14. ciety of America. Bulletin, Volume 53. p 585-646. © Wilson, A.E. Information from this publication may be quoted if credit is given It is crop in fault blocks in the southeastern part of the area. The contact be lots 16 and 17); the Almonte quarry of Thomas Cavanagh (Huntley Town p. 2002-2006 1983: Alkali Aggregate Reactions, Concrete Aggregate Testing, and Problem Ag 1946: Geology of the Ottawa-St Lawrence Lowland. Ontario and Quebec; Geo Montreal area. tario Known occurrences within the map area are as follows: McNab 1968. Discussion. Stratigraphy and Sedimentary Environments of some Wilder recommended that reference be made in the following form: tween Precambrian rock and the Verulam Formation (across the ship, concession XI. lot 15); the Carp quarry of Bertrand Concrete Prod gregates in Ontario: A Review; Ontario Ministry of Transportation anij Com logical Survey of Canada. Memoir 241, 66p. Township, concession XI, lol 9 (Satterly 1945. p 61-62); Fitzroy Town 1977b The Age and Upper Boundary of tne Nepean Formation *n its Type Section ness (Ordovician) Limestones, Ottawa Valley, Onlano; Canadian Journal of displacement along any sin ucts Ottawa Incorporated (Huntley Township, concession VIII, lot 21); munications, Report EM-31, third revised edition, 27p Williams. D.A.. Wolf. R.R., and Rae, A.M. Haeeldean fault) represents the maximum ship, concession IV, lot 2 (Kinburn or Currie prospect) (Storey and Vos, near Ottawa. Ontario. Reply, Canadian Journal of Earth Sciences, Volume Earth Sciences, Volumes, p. 166-169. Wilson, A.E., Kirwan, J.L , Livingstone. K.W., and Hill, P.A. STRUCTURAL GEOLOGY approximately equal to the the White Lake quarry of Hoffman Concrete Products Limited (McNab Satterly, J 1984: Paleozoic Geology of the Arnprior - Quyon Area, Southern Ontar gle faull; a south-stde-down displacement 1981, p.19-21); Fitzroy Township, concession VI, lot 21 (Wilson 1924, 14,p.2671-2673, 1973, Arnprior; Geological Survey of Canada, Map 1363A, scale 1:50000. maximum thickness of Paleozoic rock occurring in the area (310 m) is in Township, concession IX, lot 1): and the Braeside quarry of Smith Con Liberty. B.A. 1945: Mineral Occurrences in the Renfrew Area; Ontario Department of Mines An io, Ontario Geological Survey, Map P. 2726, Geological The map area is transected by a series of steeply dipping normal faults p.115-116); Fitzroy Township concession VI, lots 22 to 24 (Kingdon Chapman. L.J., and Putnam, D.J. Stratigraphy of Southern Ontario- The Ottawa Valley Prgblem; Wilson, M.E. struction Company Arnprior Limited (McNab Township, concession A, 1967 Ordovician nual Report, Volume 53, Part 3, 139p. Accompanied by Map 53B, scale Series-Preliminary Map, scale 1.50 000. Geology 1982. and fault zones (including the Shamrock, Pakenham, and Douglas faults dicated. mme) (Wilson 1924,p,95-102); Fitzroy Township, concession VI undi 1951: The Physiography of Southern Ontario, First Edition; Ontario Research p 49-50 in Abstracts of papers, Geological Association o) Canada-Minera- 1924: Arnprior-Quyon and Maniwaki Areas, Ontario and Quebec; Geological Sur lot 16) (Hewitt 1964, p.36a-37), Abandoned quarries include the follow 1:126 720 or l inch to 2 miles. of Kay 1942 and the Hazeldean fault of Wilson 1946) which strike gener- vided (Campbell mine) (Wilson 1924, p.102); and Fitzroy Township, lot Foundation, Toronto. logical Association of Canada, International Meeting. vey of Canada, Memoir 136,152p,