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Alberta Mineral Assessment Reporting System CONTINENTAL LIME LTD. 1997 EXPLORATION NEAR CORKSCREW AND IDLEWILDE MOUNTAINS WEST-CENTRAL ALBERTA Metallic and Industrial Minerals Permit 9396020019 Geographic Coordinates 51°58' N to 52°07' N 115°15' W to 115°31' W NTS Sheets 82 0/13, 0/14, 83 B/3, and B/4 1998 06 29 by D.I. Pana., Ph.D. J.R. Dahrouge, B.Sc., P.Geol. Halferdahl & Associates (a division of Dahrouge Geological Consulting Ltd.) 18, 10509 - 81 Avenue Edmonton, Alberta T6E 1X7 I •• TABLE OF CONTENTS 1. Summary ...................................................... 1 2. Introduction .................................................... 2 3. Geographic Setting and Access .................................... 2 4. Property, Exploration, and Expenditures .............................. 3 4.1 Metallic and Industrial Minerals Permit 9396020019 ............... 3 4.2 1997 Exploration .......................................... 3 4.3 Exploration Expenditures .................................... 5 5. Previous Investigations ........................................... 5 6. Regional Geology ............................................... 6 6.1 Stratigraphy .............................................. 6 6.1.1 Palliser Formation ................................... 6 6.1.2 Sanft Assemblage ................................... 6 6.1.3 Rundle Assemblage .................................. 7 6.2 Structure ............................................... 7 7. Permit Geology . ............................................ 8 7 .1 Stratigraphy ............................................. 8 7 .2 Structure ............................................... 9 8. Sampling, Analyses .............................................. 10 8.1 Sampling ............................................... 10 8.2 Analytical Procedures ...................................... 10 8.3 Statistical Examination of Analyses by Analytical Laboratories ....... 11 8.4 Adjustments to Reported Analyses ............................ 11 9. Conclusions 14 10. References 15 11. Qualifications 17 LIST OF TABLES Page Table 4.1 Information on Metallic and Industrial Minerals Permit 9396020019 I_ of Continental Lime Ltd. at Corkscrew Mountain ............ 3 Table 4.2 Locations Sampled ..................................... 4 I I '-- Table 6.1 Generalized Paleozoic Stratigraphy of Foothills and Front Ranges, West-Central Alberta ..................... 8 Table 8.1 Summary of Statistical Tests for Samples Analyzed by - Acme Analytical Laboratories Ltd., and Continental Lime Inc 12 ' '--' LIST OF ILLUSTRATIONS I I L Fig. 3.1 Location Map .......................................... F1 Fig. 4.1 Metallic and Industrial Minerals Permit 9396020019 F2 Fig. 6.1 Schematic Cross-Section Through Limestone and Corkscrew Mountains F3 I_ Fig. 7.1 Geology and Sample Locations . In Pocket Fig. 7.2 Cross-Section Through ldlewilde Mountain . F4 ! Fig. 7.3 Cross-Section Through Marble Mountain . F5 L LIST OF APPENDICES Appendix 1: Statement of Expenditures i for Metallic and Industrial Permit 9396020019A 1 . A 1 I_ Appendix 2: Descriptions and Compositions of Chip Samples . A2 I_' Appendix 3A: Analytical Reports for ICP Analyses from the Quality Assurance Laboratory of Continental Lime Inc . A 11 Appendix 38: Analytical Report for Check Analyses by Whole Rock ICP from Acme Analytical Laboratories Ltd . A 13 Appendix 3C: Analytical Procedure in the Quality Assurance Laboratory of Continental Lime Inc . A 14 L Appendix4: Two-Tailed Student t-Test for Differences, Sign Test, and Test of Confidence Intervals for Constituent Determinations of Samples collected from Metallic and Industrial Minerals Permit 9396020019 A 15 L Appendix 5: Determined, Adjusted, and Preferred Analyses for CaO and LOI . A23 L Appendix6: Determined and Preferred Concentrations of Chemical Constituents A25 1. SUMMARY At Corkscrew and ldlewilde mountains and within metallic and industrial minerals permit 9396020019, the Upper Devonian to Lower Carboniferous Banff Formation and the Lower Carboniferous Rundle Assemblage were examined for high-calcium limestone. Between August 28 and September 4, 1997, Paleozoic limestone units were measured and examined at 10 locations and 73 samples were collected and analyzed for whole rock constituents and LOI. A total sample length of 203% m was collected from a total of about 346 m normal thickness of strata examined. At three sections more than 135 m of the Banff Formation were examined and 19 samples collected from about 50 m normal thickness of strata. For these samples, concentrations of CaO range from 24.12 to 54.86%, with up to 14. 11 % MgO, and up to 31.88% Si02• At seven sections more than 150 m of the lower Rundle Assemblage were examined and 52 samples collected from about 200 m normal thickness of strata. Concentrations of Cao vary from 41.45 to 55.42%, with up to 11.56% MgO, and up to 2.31% Si02• At one section, two samples were collected from about 1% m stratigraphic thickness of the Mount Head Formation of the uppermost Rundle Assemblage. Concentrations of CaO vary from 49.00 to 50.35%, with up to 5.07% MgO, and up to 1.31% Si02 • Carbonate units examined within the Banff and Mount Head formations are of little economic interest for high-calcium limestone, as they exhibit low concentrations of CaO, and elevated concentrations of MgO, Si02, or both. High-calcium limestone units are present locally within the lower Rundle Assemblage, however thickness and constituent concentrations exhibit variability. 2 2. INTRODUCTION Between August 28 and September 4, 1997, Halferdahl & Associates Ltd. on behalf of Continental Lime Ltd. conducted exploration for high-calcium limestone within west-central Alberta. This assessment report describes the exploration conducted within metallic and industrial minerals permit 9396020019 which encompasses parts of ldlewilde and Corkscrew mountains of the Alberta Foothills. This report contains analytical data from 73 samples collected in 1997, as well L as geologic observations made while collecting these samples and an interpretation of the results. 3. GEOGRAPHIC SETTING AND ACCESS Metallic and industrial minerals permit 9396020019 west of Caroline, Alberta, encompasses the southern part of Baseline Ridge southeast to the Limeco Quarry on Corkscrew Mountain, and west to ldlewilde Mountain, Rocky Creek, and Cutoff Creek. The quarry of Limeco Products Ltd. is at the southeast end of Corkscrew Mountain. Access is from lnnisfail on Alberta Highway 2, 70 I L km westerly on Highway 54, and continuing another 34 km westerly on secondary road 591 and the Forestry Trunk Road (Fig. 3.1). The Forestry Trunk Road continues to the northwest along L the southwest side of Corkscrew Mountain. Near the north end of Corkscrew Mountain a spur of the Forestry Trunk Road continues west along Clearwater River and Cutoff Creek past ldlewilde L Mountain. The northern parts