The Flin Flon Targeted Geoscience Initiative 3: Update on the Quaternary Sub-Project Activities

Transcription

1 The Flin Flon Targeted Geoscience Initiative 3: Update on the Quaternary Sub-Project Activities J.E. Campbell and I. McMartin 1 Campbell, J.E. and McMartin, I. (2008): The Flin Flon Targeted Geoscience Initiative 3: update on the Quaternary sub-project activities; in Summary of Investigations 2008, Volume 2, Saskatchewan Geological Survey, Sask. Ministry of Energy and Resources, Misc. Rep , CD-ROM, Paper A-6, 11p. Abstract This report presents the activities conducted in Saskatchewan as part of the Quaternary component of the Targeted Geoscience Initiative 3 (TGI-3) Flin Flon Project. These activities include: a cross-border compilation and synthesis of till compositional data, a glacial history framework, and a surficial geology compilation at 1: scale for the greater TGI-3 project area. In Saskatchewan, this area is bordered by the Wathaman Batholith to the north and west, the Manitoba border to the east, and the edge of the Precambrian Shield to the south. Several multi-element anomalies were identified in the 2007 and 2008 joint Geological Survey of Canada/Sask. Ministry of Energy and Resources Open File reports which contain geochemical results of archived Saskatchewan Research Council till samples covering the TGI-3 project area in Saskatchewan. A number of these anomalous areas were selected for further investigations. The Settee Lake and Black Bear Island Lake areas were re-sampled this past summer to investigate the nature of the anomalies and to determine their potential interest to mineral exploration. Ice-flow indicators were also mapped in these re-sampled areas. Ice-flow indicator mapping was carried out along Highways 102 and 905 to fill in areas lacking data and to confirm the relative ages of multiple flow directions recorded on existing maps. The main ice-flow direction is to the south-southwest and overprints older westward and south-eastward flow directions. Interpretation of ice-flow indicator landforms and other glacial features from SRTM2 DEM and SPOT imagery is underway for nine 1: NTS maps sheets to augment the ice-flow indicator compilation. Keywords: TGI-3, Flin Flon Project, till geochemistry, ice-flow history, surficial geology. 1. Introduction Initiated in 2005, the Flin Flon Targeted Geoscience Initiative 3 (TGI-3) is a collaboration between the Geological Survey of Canada (GSC), the Saskatchewan Ministry of Energy and Resources (SMER), the Manitoba Geological Survey (MGS), and industry partners. It was designed to help in the discovery of new reserves of base metals in vulnerable established mining communities of the Trans-Hudson Orogen in Saskatchewan and Manitoba. The Quaternary sub-project area in Saskatchewan encompasses the Rottenstone, La Ronge, Kisseynew, Glennie, and Flin Flon domains (Figure 1). It is bordered by the Wathaman Batholith to the north and west, and by Phanerozoic cover to the south. The Quaternary component of this project will contribute directly to improving the geoscience knowledge of targeted established mining districts and promoting base metal exploration in the region outside the historic Flin Flon mining camp by providing a trans-jurisdictional compilation and synthesis of till composition, a regional ice-flow interpretation, and a surficial geology compilation at 1: scale. The objective is to outline regions with potential for mineralization, identify areas for more detailed drift sampling, and provide the geologic framework for implementation of successful detailed drift prospecting programs. The intent of this report is to provide an update of current activities in Saskatchewan being conducted as part of the Quaternary sub-project. 2. Previous TGI-3 Quaternary Work As a first step in building a trans-jurisdictional database of till composition across the various bedrock domains, 673 archived till samples collected by the Saskatchewan Research Council (SRC) in the 1970s were analyzed in 2006 and 2007 for texture and major and trace elements. These till samples were taken from the C- or lower B-soil 1 Natural Resources Canada, Northern Canada Division, Geological Survey of Canada, 601 Booth Street Ottawa, ON K1A 0E8. Saskatchewan Geological Survey 1 Summary of Investigations 2008, Volume 2

2 NOLAN ZEMLAK TALTSON 108 ENA TRAIN 106 DODGE Lake Athabasca BEAVERLODGE TANTATO MUDJATIK CARSWELL ATHABASCA BASIN W LLOYD VIRGIN RIVER Archean Tectonic Windows NW = Nistowiak Window IW = Iskwatikan Window HW = Hunter Bay Window PW = Pelican Window MUDJATIK Phanerozoic Cover 102 W WOLLASTON WATHAMAN BATHOLITH ROTTENSTONE Lac La Ronge NW IW HW LA RONGE KISSEYNEW PETER LAKE GLENNIE PW Reindeer Lk KISSEYNEW FLIN FLON SRTM DEM kilometres Figure 1 - General location map of the TGI-3 Quaternary sub-project area in Saskatchewan (orange and blue outlines) and Manitoba (black outline) with reference to the Precambrian lithotectonic domains of Saskatchewan. The blue outline indicates the area covered by archived till samples analyzed in 2006 (McMartin et al., 2007). The area covered by archived till samples analyzed in 2007 is outlined in orange (McMartin et al., 2008). Saskatchewan Geological Survey 2 Summary of Investigations 2008, Volume 2

3 horizons (Figure 2). The results for samples collected in the Kisseynew, Glennie, and Flin Flon domains (cf. Figure 1, blue outline) were published in 2007 as GSC Open File 5464/ Saskatchewan Industry and Resources Open File (McMartin et al., 2007). The data for the second set of SRC s archived samples, which were collected in the La Ronge and Rottenstone domains in Saskatchewan (cf. Figure 1, orange outline), were published in 2008 as GSC Open File 5799/SMER Open File (McMartin et al., 2008). Two till samples collected in the Kakinagimak Lake area of the northwestern Flin Flon Domain in 2007 by Ralf Maxeiner (SMER) were also analyzed and included in McMartin et al. (2008). Both reports also include previously unpublished geochemical analyses of B- horizon soil samples collected over the TGI-3 project area and analyzed by the SRC ( Project 20 data) between 1977 and A brief discussion of till provenance and its implications for base metal exploration is provided in both reports. Several regional and local-scale multielement patterns and anomalies were identified Objectives, Work Components, and Products Lac La Ronge Figure 2 - Location of analysed archived till samples. McMartin et al. (2007) report geochemical results from the Kisseynew, Flin Flon, and Glennie domains. The geochemistry of samples in the Rottenstone and La Ronge domains are reported by McMartin et al. (2008). Red stars represent samples collected in the C horizon; blue stars represent samples collected in the lower B horizon. Seven tasks were identified for work in Saskatchewan during the fiscal year: Reindeer Lk 1) Confirm selected multi-element anomalous areas identified by geochemical analysis of archived SRC till samples by re-sampling surface till in those areas; 2) Geochemical and indicator mineral analysis of the 2008 till samples collected in Saskatchewan; 3) Map ice-flow indicators at regional and detailed scales in selected areas to confirm age relationships and iceflow directions, and collect new data in areas lacking information; 4) Calibration of surficial map units used in Saskatchewan and Manitoba and finalize a common legend for the cross-border 1: scale surficial geology compilation; 5) Continue synthesis of regional glacial history and till provenance based on carbonate dispersal, ice-flow indicators, and glacial stratigraphy; 6) Undertake a calibration study for cross-border till compilation and data integration of till datasets for Saskatchewan and Manitoba; and 7) Release a digital cross-border database of ice-flow indicators. Saskatchewan Geological Survey 3 Summary of Investigations 2008, Volume 2

4 a) Multi-element Anomalies Several local-scale, multi-element anomalous glacial dispersal patterns were identified in the geochemical analysis of the archived SRC till samples. These anomalous areas require more detailed drift sampling to determine their potential implications for mineral exploration (McMartin et al., 2007, 2008). Two of these areas were chosen for follow-up field work to validate the initial geochemical results and to explain the nature of the anomalies (Figure 3). The two areas are: 1) An elongated south-southwest trending Zn (±Al 2 O 3 -Ge-Mo-V) dispersal train that occurs in the Settee Lake area within the southwestern Kisseynew Domain (former MacLean Lake Belt). Zn (after partial digestion) anomalies best outline a regional Zn dispersal train in the Settee Lake area (McMartin et al., 2007) (Figure 3). 2) Elevated Ag-Bi-Cu-Ga-Mo-Nb-Pb-Sb-Sn-Zn, Fe 2 O 3 -MnO-TiO 2, and Ce-Dy-Gd concentrations are found in a group of till samples located in the southwestern Rottenstone Domain on either sides of the Churchill River. Pb (after partial digestion), illustrates the regional multi-element enrichment located along and north of the Churchill River (Figure 1) (McMartin et al., 2008). Elevated concentrations of Cu, Ni, Zn and other elements also highlight this region as anomalous (Figure 3). The Settee Lake Zn multi-element anomaly was re-sampled in more detail. Observations were collected at 24 sites over and up-ice from the Zn dispersal train. Nine C-horizon bulk till samples (five repeats and four new sites) were collected, and striae were mapped along the shores of Settee and Hornet lakes. A sample was collected of sulphidized biotite-rich sediments from a known Cu, minor Zn showing (Saskatchewan Mineral Deposit Index (SMDI) 0892) which is located in the middle of the dispersal train (Figure 4). The chemistry of mineralized rock will be compared to the chemistry and pebble lithology of the till to determine if this occurrence contributed to the dispersal train. Other known outcropping Zn mineralizations are found in the Brabant Lake area (SMDI 0446, 0461, and 0447) approximately 30 km to the northeast of Settee Lake. The largest deposit (SMDI 0446), which is currently held by Manicouagan Minerals Inc., lies approximately 1.2 km north of Brabant Lake and 1.6 km east of Highway 102 (Figure 3). The Zn dispersal pattern trends roughly north-south (Figure 3) which is oblique to the main ice flow to the south-southwest. It may be related to an earlier south to south-eastward flow recorded in the area. Despite which ice-flow direction dispersed the Zn-enriched till, neither the Brabant Lake deposit nor any of the other known occurrences lie up-ice of the Settee Lake dispersal train; thus at present it has no known source. Sampling of the Black Bear Island Lake area within the Rottenstone Domain was completed at multi-element anomalous sample sites accessed by boat and float plane. Seventeen surface till samples were collected (Figure 5). There are a few known small Fe mineral (Py-Po) and Cu-Ni- showings or occurrences in this area but the source rocks for this large multi-element anomalous area remain unknown. Fifteen sites were re-sampled and two new sites were added. The 15 re-sampled sites are located on Black Bear Island, Campbell, Shadd, and Trout lakes. A TriNational (see Campbell et al., this volume) site was sampled near the eastern end of Black Bear Island Lake. Since the objectives and analytical protocols are different for these projects, a separate bulk till and till geochemical sample were collected for the TGI-3 study. A sample was also collected from the north shore of Gochager Lake (Figure 5) and down-ice from a known Ni-Cu occurrence (SMDI 0880) located approximately 400 m northeast of the lake. The objective here was to test for detection of glacially dispersed mineralization in the surface till in this region. Bulk till samples have all been submitted for geochemical and textural analyses, as well as Au grain and indicator mineral recovery. Trace elemental concentrations of the <0.063 mm size fraction will be determined by ICP-AES after partial (HNO 3 :HCL, 8:1) digestion. In addition, a separate sample split will be submitted for major and trace elements by ICP-AES after a near-total (HF/HNO 3 /HCl) digestion. These are the same analytical methods used for the SRC archived samples and will allow for meaningful comparison of the results. See McMartin et al. (2008) for a more detailed description of the geochemical procedures. b) Ice-flow Compilation Digital Compilation The 1: scale cross-border compilation of ice-flow indicators is nearing completion. All of the landforms and erosional forms from existing maps in Manitoba and Saskatchewan are now digitally compiled. Striae data from the Saskatchewan geological mapping projects, including the 2008 field season, have been incorporated into the database. For areas where the ice-flow data is too concentrated for the 1: scale, it will be generalised and simplified for map presentation using a preliminary automated generalization method developed by the Laboratoire de cartographie numérique et de photogrammétrie at GSC-Québec. The data will be retained in its entirety in the accompanying database. Saskatchewan Geological Survey 4 Summary of Investigations 2008, Volume 2

5 106 W 104 W 102 W 57 W Settee Lake Area Brabant Lk Zn-Cu Brabant Lk 56 W Hornet Lk Settee Lk 55 W 57 W Black Bear Island Lake Area Campbell Lk 56 W Shadd Lk Black Bear Island Lk Trout Lk 55 W 106 W 104 W 102 W Figure 3 - Two anomalous areas selected for follow-up till sampling: the Settee Lake area in the southwestern Kisseynew Domain and the Black Bear Island Lake area in the southern Rottenstone Domain. Partial Zn (top maps) outlines a regional Zn dispersal train in the Settee Lake area (McMartin et al., 2007) and partial Pb (bottom maps) shows the regional multielement enrichment in southern Rottenstone Domain (McMartin et al., 2008). Bedrock geology includes: volcanic rocks in greens and blues; metasediments in browns, yellows, and light oranges; felsic to intermediate intrusive rocks in pinks, orange-pink, and reds; mafic intrusive rocks in purples; undifferentiated gneisses in orange and migmatites in tan (Rottenstone); and undivided orthogneisses in peach (Glennie). See Slimmon (2007) for a more detailed description of rock types. Saskatchewan Geological Survey 5 Summary of Investigations 2008, Volume 2

6 104 10'W 104 W Legend 2008 till samples sites Zn partial (ppm) (McMartin et al., 2007) to to to 100 Hornet Lk 55 55'N to 'N to to 507 Cu showing (SMDI 0892) 97 Highway 102 Rivers Lakes Striae - direction unknown Settee Lk Striae - direction known Previously mapped; relative age unknown 2008 mapping 55 50'N Relative age unknown 'W Relative ages: 1=oldest, 2=younger, 3 =youngest km 104 W Figure 4 - The locations of the 2008 bulk till samples and ice-flow indicator measurement sites in the Settee Lake area. The partial Zn concentrations from analysis of SRC archive samples are shown for reference (McMartin et al., 2007). Actual concentrations in the till are shown for selected samples. To improve the regional mapping coverage of ice-flow indicators for the entire TGI-3 study area, Shuttle Radar Topographic Mission digital elevation model (SRTM2 DEM) and SPOT imagery are being used to map glacial landforms. In Saskatchewan, interpretation of glacial landforms to augment the existing ice-flow indicator data for nine 1: scale NTS mapsheets is underway (Figure 6). Once these maps are finalised they will be incorporated into the digital 1: scale compilation. This work will greatly enhance our ability to reconstruct the ice-flow and deglacial histories of the region. Field Mapping It became apparent during the compilation of existing ice-flow indicator data that there is a paucity of striae data and other measured erosional features for much of the TGI-3 project area in Saskatchewan. In addition, where multiple striae were recorded, there were commonly no relative ages assigned, making it difficult to interpret the ice-flow history and correlate it with that in Manitoba. To help resolve the relative age questions and confirm the presence of the previously recorded older directions to the southeast and west, detailed ice-flow indicator mapping was completed along portions of Highways 102 and 905, and the Grandmother s Bay access road (Figure 7). Striae were also measured in the Settee, Laonil, and Black Bear Island lakes areas. In all, ice-flow data was collected from 82 sites. Saskatchewan Geological Survey 6 Summary of Investigations 2008, Volume 2

7 Saskatchewan Geological Survey Shadd Lk km 'W W Relative ages: 1=oldest, 2=younger, 3 =youngest 2008 mapping Gochager Lk Legend Ni-Cu showing (SMDI 0880) 25.1 to to to to to 10 2 to 8 (McMartin et al., 2008) Pb partial (ppm) to to to to to to 60 (McMartin et al., 2008) Zn partial (ppm) 2008 till samples sites Rivers Lakes TGI-3 study area (western limit) 26 McIntosh Lk 133 Relative age unknown 1 16 Trout Lk Striae - direction known Previously mapped; relative age unknown 23 Black Bear Island Lk Campbell Lk W Figure 5 - Location of the 2008 bulk till samples and ice-flow indicator measurement sites in the vicinity of Black Bear Island and Gochager lakes, Rottenstone Domain. The partial Zn and partial Pb concentrations from analysis of SRC archive samples are shown for reference (McMartin et al., 2008). The actual Zn (green) and Pb (orange) values are shown for selected SRC till samples 'N 55 50'N 'W Summary of Investigations 2008, Volume 2

8 110 W 60 N Lake Athabasca Cree Lake 106 W 102 W 60 N Points North 74H 74A 64L Wollaston Lake 64E 64D Reindeer Lake Southend Legend Highways Lithologic domain boundaries TGI-3 study area km There are numerous outcrops along the Grandmother s Bay access road with well-preserved, glacially polished and striated surfaces (Figure 8). Ten sites were visited along this road that revealed several multi-directional striated surfaces and helped to resolve the relative ice-flow chronology in this region. Iceflow indicator mapping was completed along Highways 905 and 102 between the Wollaston Lake area and Missinipe. Data was collected from 38 sites to augment the data previously reported by Alley and Schreiner (1984), Schreiner and Alley (1984), and Campbell (1986, 1987). 54 N 110 W La Ronge 73P 73I Lac La Ronge 63M,N 63L,K Figure 6 - In Saskatchewan, interpretation of glacial landforms using the SRTM2 DEM and SPOT imagery to augment the existing ice-flow indicator data is underway for the nine 1: scale NTS map sheets highlighted in green. Amisk Lake 102 W The main ice flow was to the south-southwest, predominantly at ~215, but ranging from 204 to 228. It shifted slightly from south-southwest flow (~207 ) in the northern part of the study area around the Davin-Brabant- Settee lakes area (Figure 7) to a more southwest flow over the McLennan Lake (~221 to 228 ) (Figure 7) and Black Bear Island Lake (218 to 220 ) areas (Figure 5). The mapping confirmed an older ice flow to the southeast (~173 ) in the Settee and Laonil-Munro lake areas as well as older westward (250 to 280 and southwestward (220 to 240 ) flows (Figure 7). The cross-cutting relationships at several sites in the Davin (i.e., sites 08JC013 and 08JC0014) and McLennan lakes area suggest the westward flow predates the south-eastward flow (Figure 7). A rare southward flow (~190 ) was also recorded, but the relative age is unclear as it was found to be both younger and older than the main south-southwest ice flow at different sites. A late-stage re-advance to the south has been well documented just north of the study area (Campbell, 2007); however, its extent has not been established. The Cree Lake Moraine is an end moraine which can be traced across Saskatchewan and into Manitoba. It represents a major standstill of the retreating Keewatin Ice around 10,000 to 9,500 yrs 14 C BP (Schreiner, 1984; Dyke, 2004). The moraine is discontinuous and has not been systematically mapped. It trends east-west through the field area around the Waddy and Brabant lakes area (Figure 7). No evidence of the moraine was noted in the vicinity of its projected crossing of Highway 102, nor could an ice-flow direction be correlated with the moraine. It is hoped that further analysis of our new digital interpretative data and the regional compilation will help delineate the Cree Lake Moraine as well as the late-stage re-advance of the Keewatin Ice in the TGI-3 project area. Once the cross-border ice-flow compilation is complete, it will significantly enhance our understanding of ice-flow chronology, glacial retreat, and the interaction of the ice lobes of the Keewatin and Labrador Ice Sectors in this region. Ice-flow reconstruction is essential for establishing glacial transport distances and directions. This framework will be a valuable tool for drift prospecting in support of mineral exploration for new base and precious metals. c) Surficial Geology Compilation Digital compilation of the surficial geology for the entire TGI-3 project area involves integration of Saskatchewan s 1: scale surficial geology maps (e.g., Schreiner and Alley, 1984) with Manitoba s 1: and 1: scale maps. The compilation of maps with various scales, details of mapping, and legends used by various authors has led to the need for a common legend for the cross-border map. By working together in the field, a new surficial geology legend was agreed upon for the cross-border compilation, using, as a basis, the legend 54 N Saskatchewan Geological Survey 8 Summary of Investigations 2008, Volume 2

9 104 W Legend 2008 striae sites 57 N 57 N 2008 Striae Davin Lk 0 10 Ice-flow direction unknown 20 km Colour indicates relative age Main ice-flow direction Colour indicates relative age Hwy 905 Reindeer Lk Relative Age direction known Macoun Lk Unknown Waddy Lk Oldest McLennan Lk 02 y 1 w H Missinipe Youngest Settee Previously Mapped 56 N Brabant Lk Lk Laonil-Munro Lks Grandmother s Bay Rd Relative age unknown Cree Lake moraine (approximate) TGI-3 study area (northwest limit) Road Lakes 104 W Figure 7 - Compilation of the ice-flow indicator mapping along Grandmother s Bay access road and Highways 102 and 905. Depiction of the number of striae recorded has been simplified for readability. At sites where multiple striae were recorded, the relative ages of the cross-cutting relationships are indicated by colour. The main flow direction is indicated by the larger striae symbol. Saskatchewan Geological Survey 9 Summary of Investigations 2008, Volume 2

10 215 developed by Gaywood Matile for the provincial compilation in Manitoba. Saskatchewan s provincial surficial geology legend has been integrated into this common legend. Some areas along the provincial border will require additional remote mapping (e.g., air photograph and SPOT imagery interpretation) to match the geological polygons and to correct map border faults. 229 Figure 8 - Cross-cutting striae found on an outcrop along the Grandmother s Bay Road (site 08IM034, UTM m E, m N, NAD 83, Zone 13). The main direction of 215, as indicated by the black arrows, is found on top of the outcrop and cross-cutting the older 229 striae. The red arrows highlight older striae at 229 on a lee surface protected during the 215 ice flow. 4. Future Work and Saskatchewan Output Products Year is the last year of the TGI-3 project and will be spent completing the compilation work and associated reports. No fieldwork is planned. The following products are slated for completion by spring 2010 as joint GSC-SMER-MGS releases. The joint GSC-SMER Open File (McMartin et al., 2008) of the till geochemical data from archived samples collected over the La Ronge and Rottenstone domains was released in April The results from this summer s follow-up till sampling will be integrated into the final cross-border till composition database and published in a joint GSC-SMER-MGS Open File report and web-release. A 1: scale cross-border digital surficial geology map of the TGI-3 project area will be released. The digital release of the cross-border compilation ice-flow indicator database will be released in the spring of A preliminary digital 1: scale map of the ice-flow indicators will accompany the database. A final, interpreted 1: scale cross-border digital ice-flow indicator map and accompanying report on glacial history for the TGI-3 project area will be published at a later date. A final report summarizing the datasets, maps, interpretations and new knowledge, as well as illustrating how this new surficial geological framework can assist with new mineral discoveries in the region will be released in the final year of the project. 5. Acknowledgments The authors would like to thank Adam Putz for his adept assistance in the field. The generosity, friendship and support of our hosts, Bart and Vickie Bricksaw, during our stay at Pine Island Resort on Black Bear Island Lake were greatly appreciated. Osprey Wings Ltd. of Missinipe provided expert air service during our field work. The authors would like to acknowledge and thank Louis Robertson of the GSC who has led the GIS compilation portion of this project. This manuscript was improved through critical reviews by: Ken Ashton and Donna Schreiner (SMER), and Lynda Dredge (GSC). This is Natural Resources Canada/Earth Science Sector contribution number References Alley, D.W. and Schreiner, B.T. (1984): Quaternary geology of the Reindeer Lake South area (64-D) Saskatchewan; Sask. Energy Mines, Open File Rep. 84-6, 1: scale map. Campbell, J.E. (1986): Quaternary geology of the Waddy Lake area applied to prospecting for gold; Sask. Resear. Counc., Publ. No. R E-86, 74p. (1987): Quaternary geology and till geochemistry of the Sulphide-Hebden lakes area; Sask. Resear. Counc., Publ. No. R E-87, 74p. (2007): Quaternary geology of the eastern Athabasca Basin, Saskatchewan; in Jefferson, C.W. and Delaney, G. (eds.), EXTECH IV: Geology and Uranium EXploration TECHnology of the Proterozoic Saskatchewan Geological Survey 10 Summary of Investigations 2008, Volume 2

11 Athabasca Basin, Saskatchewan and Alberta, Geol. Surv. Can., Bull. 588/Sask. Geol. Soc., Spec. Publ. No. 18/Geol. Assoc. Can., Miner. Dep. Div., Spec. Publ. 4, p Dyke, A.S. (2004): An outline of North American deglaciation with emphasis on central and northern Canada; in Ehlers, J. and Gibbard, P.L. (eds.), Quaternary Glaciations-Extent and Chronology, Part II, Developments in Quaternary Science, vol. 2b, Elsevier, Amsterdam, p McMartin, I., Campbell, J.E., and Dredge, L.A. (2008): Till geochemistry from archived samples collected over the La Ronge and Rottenstone domains, central Saskatchewan; Geol. Surv. Can., Open File 5799/Sask. Ministry of Energy and Resources, Open File , 30p. McMartin, I., Campbell, J.E., Dredge, L.A., and Grunsky, E. (2007): Till geochemistry from archived samples collected over the Glennie, Kisseynew and Flin Flon domains, east-central Saskatchewan; Geol. Surv. Can., Open File 5464/Sask. Industry Resources, Open File , 21p. Schreiner, B.T. (1984): Quaternary Geology of the Precambrian Shield, Saskatchewan; Sask. Energy Mines, Rep. 221, 106p. Schreiner, B.T. and Alley, D.W. (1984): Quaternary geology of the Lac La Ronge area (73-P) Saskatchewan; Sask. Energy Mines, Open File Rep. 84-4, 1: scale map. Slimmon, W. L. (2007): Geological Atlas of Saskatchewan; Sask. Industry Resources, Misc. Rep , DVD, version 10. Saskatchewan Geological Survey 11 Summary of Investigations 2008, Volume 2