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TitleProject Unit 10-004. An update on regional bedrock geology mapping in the McFaulds Lake ("Ring of Fire") region
AuthorMetsaranta, R T; Houlé, M G
SourceSummary of field work and other activities, 2013; by Ontario Geological Survey; Ontario Geological Survey, Open File Report 6290, 2013 p. 50.1 - 50.12
Alt SeriesEarth Sciences Sector, Contribution Series 20130221
PublisherOntario Geological Survey
Documentopen file
Mediapaper; on-line; digital
File formatpdf
NTS43C/05; 43C/12; 43C/13; 43D/06; 43D/07; 43D/08; 43D/09; 43D/10; 43D/11; 43D/14; 43D/15; 43D/16; 43E/01; 43E/02; 43E/03; 43F/04
AreaMcFaulds Lake; Webequie; Attawapiskat River
Lat/Long WENS-87.2500 -85.5000 53.3333 52.2500
Subjectsstratigraphy; structural geology; bedrock geology; cores; tectonostratigraphic zones; lithology; metavolcanic rocks; metasedimentary rocks; mineralization; McFaulds Lake greenstone belt; Kitchie Assemblage; Winiskisis Assemblage; Attawapiskat Assemblage; Precambrian
Illustrationsgeological sketch maps; photographs
ProgramMafic-Ultramafic Ore Systems, Targeted Geoscience Initiative (TGI-4)
LinksOGS OFR 6290 Online - En ligne (pdf, 204 MB)
AbstractBedrock mapping and data compilation in the McFaulds Lake area was initiated during the summer of 2010. A slightly revised project area encompasses a 125 by 125 km area centred approximately 75 km east-southeast of Webequie (see Figure 50.1). Figure 50.1 shows a compilation of diamond-drill hole locations, relogged drill-core locations and outcrop locations mapped during the project, overlain on the 1:250 000 geological compilation (Stott and Josey 2009) for the area, which existed prior to this project. In total, 260 diamond-drill cores were re-examined and 262 outcrops were mapped during the regional bedrock mapping project.
The summer of 2013 marked the final summer of field work on this project. Only limited field work was conducted during this time. The field work consisted of a seven-day drill-core logging program carried out in June at the Cliffs Resources Inc. and Noront Resources Inc. "Esker camp", and a fifteen-day helicopter-supported drill-core relogging and outcrop mapping program carried out in July from Webequie. The main focus of the field work was to fill gaps in data collection from previous years. Specifically, core logging was carried out to better understand the stratigraphy of the McFaulds Lake greenstone belt in the Kitchie, Winiskisis and Attawapiskat assemblages, the 3 least-explored and least-exposed tectonostratigraphic assemblages provisionally identified by Metsaranta and Houlé (2012, 2013).
Summary(Plain Language Summary, not published)
The Targeted Geoscience Initiative (TGI-4) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques to better detect buried mineral deposits, thereby reducing some of the risks of exploration.The main purposes of this contribution are (1) to provide an update on the data compilation and bedrock mapping project of the McFaulds Lake/Ring of Fire region and (2) to report on the final year of field work on regional bedrock mapping carried out in the "Ring of Fire" (RoF) region during the summer of 2013.