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Errata and Amendments - Preliminary Maps

P.3761

Preliminary Map P.3761, Precambrian Geology of the Split Lake Area, Northwestern Ontario (released April 5, 2011), has been updated to include geochronology data not available at the time of the original release. Detailed information on the 2 new ages and their locations have been added to the map, but is also provided in the table below. Location information is provided as Universal Transverse Mercator (UTM) co-ordinates using North American Datum 1983 (NAD83) in Zone 15N.

Preliminary Map P.3761, Table 2

A new version of this map is available. If you have purchased a copy of this map and wish to receive a replacement copy, please return the map to Publication Sales and new plot of this map will be sent to you free of charge. Alternatively, and for clients who downloaded the map from GeologyOntario, the new version is available for downloading at
www.geologyontario.mndm.gov.on.ca/mndmaccess/mndm_dir.asp?type=pub&id=P3761.

P.3611

On Preliminary Map P.3611, Geological Compilation of the Miminiska–Fort Hope Area, Eastern Uchi Domain (released April 14, 2009), a geochronological sample was mislocated. As shown in the figure below, sample “F”, on the map and listed in Table 1, is located at UTM co-ordinates 385049E 5712532N (shown below by the large white diamond labelled “F”) not 385079E 5708923N (as shown below by the small black diamond). The UTM co-ordinates are provided using NAD83, Zone 16.

Erratum

P.3607

On Preliminary Map P.3607, Precambrian Geology of the Winisk Lake Area, Northwestern Ontario, released April 7, 2009, the geochronological age reported for sample site 4 in the northeast part of the map face should read “<2719 ± 2 Ma” not “2919 ± 2 Ma”. The age is correctly reported, however, in Table 2.

P.3598-REVised

On Preliminary Map P.3598-Revised, released August 6, 2008, a dike in the southeast corner of the map was inadvertently mislabelled. The dike, which trends northwest and intersects the southern border of the map between longitudes 82°W and 83°W is shown as gold in colour and labelled 33a. It should have been green and labelled 26b. This error has been corrected. If you have purchased a copy of this map and wish to receive a replacement copy, please return the map to Publication Sales and a correct plot of this map will be sent to you free of charge. Alternatively, and for clients who downloaded the map from GeologyOntario, a correct version is available for downloading at:
http://www.geologyontario.mndmfF.gov.on.ca/MNDMaccess/MNDM_dir.asp?type=pub&id=P3598-REV

The error in Preliminary Map P.3598-Revised also affects Miscellaneous Release-Data 233, which was released in conjunction with Preliminary Maps P.3598-Revised, P.3597-Revised and P.3599. The digital data on this publication contained portable document format (.pdf) files of each map as well as a seamless (merged) PDF file of all 3 maps. The PDF files of Preliminary Map P.3598-Revised (p3598-rev.pdf) and of the seamless version (Seamless-p3597-99.pdf) have been corrected. Clients who purchased this MRD and wish to receive a replacement copy may return their DVDs to Publication Sales and a replacement copy will be sent to you free of charge. Alternatively, and for those clients who downloaded the MRD from GeologyOntario, a correct version is available for downloading at:
http://www.geologyontario.mndmfF.gov.on.ca/MNDMaccess/MNDM_dir.asp?type=pub&id=MRD233

To download only the 2 corrected files (p3598-rev.pdf and Seamless-p3597-99.pdf), please go to the following sites:
http://www.MNDM.gov.on.ca/mines/data/mrd233/p3598-rev.zip
http://www.MNDM.gov.on.ca/mines/data/mrd233/seamless-p3597-99.zip


P.3597 and P.3598

On Preliminary Maps P.3597 and P.3598, released October 9th, 2007, there is an error in Figure 1. A small, light-blue-coloured polygon was inadvertently placed just south of an important mafic intrusion, making the intrusion look much larger than it is.

P.3590

On Preliminary Map P.3590, Precambrian Geology of the McInnes Lake Greenstone Belt, Northwestern Ontario-South Sheet (released December 11, 2007), sold separately, with Open File Report 6210 and on Miscellaneous Release-Data 222, geologic subunit 6c was omitted from the "Legend". Unit 6c is a pyroxenite; the only outcrop is located at UTM co-ordinates 453169E 5780872N (NAD83, Zone 15). This error has been corrected. If you have purchased a copy of any of these publications and would like a replacement, please return the publication(s) to Publication Sales, and a replacement copy will be sent to you free of charge.

P.3541 and P.3542

On Preliminary Map P.3541, Precambrian Geology of Shaw Township and P.3542, Precambrian Geology, Eldorado and Adams Townships (released April 14, 2004) the colours for geologic units 1, 4, 5 and 7 were plotted incorrectly. In addition, an error was noted in a geologic contact in the north-central portion of map P.3541. These errors have been corrected. If you have purchased a copy of either of these maps and would like a replacement, please contact Publication Sales, and a corrected copy will be sent to you free of charge.

P.3534

Preliminary Map P.3534, Precambrian Geology of Otto and Eby Townships, was released (March 8, 2004) plotted at a scale of 1:19 000 rather than the intended 1:20 000. If you purchased a copy of this map, please contact Publication Sales and a correct plot of this map will be sent to you free of charge.

P.3422 & P.3423

The authorships of preliminary maps P.3422 and P.3423 were incorrectly stated in the March 6, 2000 Publications Release Notice. The recommended references should have read as follows:

Map P.3422

Hart, T.R., Meyer, P., Martin, L.A. and Zurevinski, S.M. 2000. Precambrian geology, Garden Lake greenstone belt (west half); Ontario Geological Survey, Preliminary Map P.3422, scale 1:20,000.

Map P.3423

Hart, T.R., Meyer, P., Martin, L.A. and Zurevinski, S.M. 2000. Precambrian geology, Garden Lake greenstone belt (east half); Ontario Geological Survey, Preliminary Map P.3423, scale 1:20,000.

P.3407, P.3408, P3411 & P.3413

The following maps by S.B. Lumbers and V.M. Vertolli, released January 10, 2000, have a symbol in the Symbols list mislabelled:

The symbol labelled "Bedding; sedimentary, volcanic or other (horizontal)" should have been labelled "Compositional layering and/or parallel tectonic foliation (horizontal)".

P.3395

On Map P.3395, titled Geological Compilation, Beatty and Munro Townships (July 12/99), 16 diamond-drill holes were mislocated in the vicinity of the Potter Mine from their actual locations 2 km north, in the vicinity of the PotterDoal Mine, north-central Munro Township. If you have purchased a copy of this map, please return it to Publication Sales and a correct plot of this map will be sent to you free of charge.

P.3390

Preliminary Map P.3390 titled, Precambrian Geology Willet-Gledhill Lakes Area, Onaman-Tashota Greenstone Belt, was released with the wrong NTS reference. The correct NTS reference is 42 L/3, 4, 5, 6.

P.3388

On Map P.3388, titled Precambrian Geology, Hwy 101 West (March 15/99), 2 areas of rock unit 1 (ultramafic and mafic metavolcanic rocks) in the extreme eastern part of the map, at UTM 5373000N, were coloured incorrectly. If you have purchased a copy of this map, please return it to Publication Sales and a correct plot of this map will be sent to you free of charge.

P.3363

A "Properties" list belonging to another map was inadvertently included in the marginal material of Map P.3363, entitled Precambrian Geology, Hurdman Township Zinc Occurrence. Map P.3363 should not have a "Properties" list. (Sept. 9/96.)

P.3357

Map P.3357, entitled Preliminary Observations on Mineralization and Alteration in Elmhirst and Rickaby Townships, sold separately and with Open File Report 5936, was inadvertently published at an incorrect scale. Clients who purchased a copy of either of these publications may return their map to the Publication Sales outlet, and it will be replaced by a map at the correct scale at no charge. (March 11/96.)

P.3349

Some copies of Map P.3349, entitled Geology of the Atikokan Area, may have been plotted with incorrect longitudinal measurements. The longitudinal measurement for the map area's west boundary should be 92˚ (not 94˚), and for the east boundary, 91˚30' (not 93o45'). (Dec. 11/95.)

P.3344

Map P.3344, entitled Mineral Resource Assessment Map of the Grassy River Area, was released with line types plotted incorrectly. If you purchased a copy of Map P.3344 or a copy of OFR 5930, which this map accompanies, prior to Feb. 1/96, please return your map to Publication Sales, and a correct plot of this map will be sent to you free of charge. (Dec. 11/95.)

P.3339

Map P.3339, entitled Paleozoic Geology of the Penetanguishene-Elmvale Area, Southern Ontario, is a 1:50,000 scale map but was inadvertently published with a 1:20 000 scale bar. (Aug. 31/95.)

P.3320

Map P.3320, entitled Mineral Occurrences and Precambrian Geology, Larder Lake Area, a 1:50,000 scale map, was inadvertantly published with a 1:25,000 scale bar.

P.3303

Preliminary Map P. 3303, entitled Precambrian Geology, Michipicoten Greenstone Belt, Central Portion, announced in the December 1994 Publications Release Notice, was released without dip values for the structural symbols. If you have purchased a copy of Preliminary Map P.3303 and it is missing this information, please return your map to Publication Sales and a correct version will be sent to you free of charge. (Dec. 5/94.)

P.3302

Map P.3302, entitled Geology of Marko's Pegmatite, Separation Rapids Pegmatite Group, Separation Lake Greenstone Belt (Dec. 11/95), was released with one of the outcrop units miscoded. The north half of the large western outcrop should be labelled as follows:

Magnetite-actinolit-grunerite Banded Iron Formation

P.3269

Two known gold-bearing zones, delineated by diamond drilling and meeting the OGS mineral occurrence requirements, were left off Preliminary Map P.3269, Precambrian Geology, Opikeigen Lake Area. The occurrences are known as the OL12 and OL29 zones located southeast of Opikeigen Lake. The location for diamond-drill hole OL-87-12 is Zone 16, NAD 83, 5719050N; 427600E. The location for diamond-drill hole OL-87-29 is Zone 16, NAD 83, 5719150N; 427000E.

P.3187

The name of the author of Map P.3187, Bedrock Geology of the Regional Municipality of Sudbury, was spelled incorrectly in the November 1998 Publications Release Notice. The correct spelling of the author's name is D. Rousell. (Nov. 9/98.)

P.2847 & P.2846

Preliminary Maps P.2846, Precambrian Geology, Jocko River Area, and P.2847, Precambrian Geology, Songris Area (on June 5 release notice; released on June 13, 2006), were plotted with incorrect latitudinal and/or longitudinal measurements. On the location map for each map, the correct latitude should be 46˚30′N (not 49˚30′N). Map P.2846 also had incorrect latitudinal and longitudinal measurements plotted at the corners of the map sheet: the northwestern extent is 46˚52′14″N, 79˚25′31″W (not 45˚52′14″N, 79˚25′31″W); the southwestern extent is 46˚34′26″N, 79˚26′02″W (not 46˚34′00″N, 79˚25′31″W); the southeastern extent is 46˚34′01″N, 79˚00′00″W (not 46˚34′00″N, 78˚58′39″W); the northeastern extent of 46˚51′52″N, 79˚01′55″W is correct, as are all other measurements. These errors have been corrected. If you have purchased a copy of either of these maps and would like a replacement, please contact Publication Sales, and a corrected copy will be sent to you free of charge.