Mar 20000018: Athabasca
Total Page:16
File Type:pdf, Size:1020Kb
MAR 20000018: ATHABASCA Received date: Jul 10, 2000 Public release date: Jul 19, 2001 DISCLAIMER By accessing and using the Alberta Energy website to download or otherwise obtain a scanned mineral assessment report, you (“User”) agree to be bound by the following terms and conditions: a) Each scanned mineral assessment report that is downloaded or otherwise obtained from Alberta Energy is provided “AS IS”, with no warranties or representations of any kind whatsoever from Her Majesty the Queen in Right of Alberta, as represented by the Minister of Energy (“Minister”), expressed or implied, including, but not limited to, no warranties or other representations from the Minister, regarding the content, accuracy, reliability, use or results from the use of or the integrity, completeness, quality or legibility of each such scanned mineral assessment report; b) To the fullest extent permitted by applicable laws, the Minister hereby expressly disclaims, and is released from, liability and responsibility for all warranties and conditions, expressed or implied, in relation to each scanned mineral assessment report shown or displayed on the Alberta Energy website including but not limited to warranties as to the satisfactory quality of or the fitness of the scanned mineral assessment report for a particular purpose and warranties as to the non-infringement or other non-violation of the proprietary rights held by any third party in respect of the scanned mineral assessment report; c) To the fullest extent permitted by applicable law, the Minister, and the Minister’s employees and agents, exclude and disclaim liability to the User for losses and damages of whatsoever nature and howsoever arising including, without limitation, any direct, indirect, special, consequential, punitive or incidental damages, loss of use, loss of data, loss caused by a virus, loss of income or profit, claims of third parties, even if Alberta Energy have been advised of the possibility of such damages or losses, arising out of or in connection with the use of the Alberta Energy website, including the accessing or downloading of the scanned mineral assessment report and the use for any purpose of the scanned mineral assessment report so downloaded or retrieved. d) User agrees to indemnify and hold harmless the Minister, and the Minister’s employees and agents against and from any and all third party claims, losses, liabilities, demands, actions or proceedings related to the downloading, distribution, transmissions, storage, redistribution, reproduction or exploitation of each scanned mineral assessment report obtained by the User from Alberta Energy. Alberta Mineral Assessment Reporting System I £tYc7<)C'OI g JUL 1 0 ZOOO I NTS 831 11 1I • II ASSESSMENT REPORT ATHABASCA PROPERTY, NORTHERN ALBERTA I MINERAL PERMIT 9398030076 ·1 I I Prepared for I BOHAUTU DIAMONDS LTD. I I I I I APEX Geoscience Ltd. July, 2000 S.A. Balzer 1• D.J. Besserer I I I I I I ASSESSMENT REPORT ATHABASCA PROPERTY, NORTHERN ALBERTA I MINERAL PERMIT 9398030076 I TABLE OF CONTENTS I PAGE I SUMMARY ..................................................................................................................... 1 INTRODUCTION ............................................................................................................. 2 I Terms of Reference .............................................................................................. 2 I Property Description and Location ........................................................................ 2 Accessibility, Climate and Local Resources .......................................................... 2 I REGIONAL GEOLOGICAL SETTING ............................................................................ .4 I Precambrian .......................................................................................................... 4 Phanerozoic .......................................................................................................... 6 I Quaternary ............................................................................................................ 9 I Structural Geology .............................................................................................. 10 PREVIOUS EXPLORATION .. .. ...................................................................................... 10 I 1998-2000 EXPLORATION ........................................................................................... 11 I Surface Sampling ................................................................................................ 11 Geophysical Surveys .......................................................................................... 12 I Drilling and Subsurface Sampling ................................................................ ....... 12 I DISCUSSION OF RESULTS TO DATE ........................................................................ 12 Surface Sampling ................................................................................................ 12 I Geophysical Surveys .......................................................................................... 13 I I I I Drilling and Subsurface Sampling ....................................................................... 15 I DISCUSSION OF DIAMOND POTENTIAL .................................................................... 15 CONCLUSIONS ............................................................................................................ 16 I RECOMMENDATIONS .................................................................................................. 16 I REFERENCES .............................................................................................................. 17 CERTIFICATION ......................................................................................... .................. 20 I TABLES I TABLE PAGE I 1 LEGAL PERMIT DESCRIPTION, ATHABASCA PROPERTY .............................. 2 I 2 GENERALIZED STRATIGRAPHY, TAWATINAW LAKE AREA .................. ......... 8 I FIGURES FIGURE PAGE I 1 ATHABASCA PROPERTY LOCATION, ALBERTA .............................................. 3 I 2 BASEMENT GEOLOGY, NORTHERN ALBERTA ................................... .... .... .... 5 I 3 REGIONAL GEOLOGY, NORTHERN ALBERTA ................................................. 7 4 SUMMARY OF EXPLORATION, 1998 - 2000 ........................................... AT END I 5 DIAMOND INDICATOR MINERALS SUMMARY ....................................... AT END I 6 ANALYTICAL SIGNAL OF TMl ..................................................................AT END 7 HORIZONTAL GRADIENT OF TMI ..................................................AT END I 8 FIRST VERTICAL DERIVATIVE OF TMl. .................................................. AT END I 9 SLOUGH SURVEY, GROUND MAGNETICS ..................................................... 14 I I I I APPENDICES I APPENDIX PAGE I 1 STATEMENT OF EXPENDITURES ..........................................................AT END I 2 SAMPLE LOCATIONS ..................................... ............... ..... ...................... AT END 3 DIAMOND INDICATOR MINERAL RESULTS ........................................... AT END I 4 PETROGRAPHIC DESCRIPTIONS ..........................................................AT END I 5 CLAY SAMPLE GEOCHEMICAL RESULTS ............................................. AT END I 6 DRILL HOLE LOG DESCRIPTIONS .... ... ................................................... AT END I I I I I I I I I I I I I ASSESSMENT REPORT I ATHABASCA PROPERTY, NORTHERN ALBERTA MINERAL PERMIT 9398030076 I SUMMARY APEX Geoscience Ltd. (APEX), was retained during the Fall of 1998, as consultants I by Bohautu Diamonds Ltd. (Bohautu) to prepare an independent evaluation of the diamond potential of their Athabasca Property. The Athabasca Property lies about 24 km southeast of Calling Lake and 24 km northeast of the town of Athabasca in Townships 68 - 69, I Ranges 19 - 20, West of the Fourth Meridian. The regional setting for Bohautu's Athabasca property is considered favourable for I the presence of diamondiferous kimberlites, as the permits are underlain by an unnamed basement domain with gravity and magnetic signatures similar to those of the Buffalo Head Terrane and Wabamun Terrane. In addition, the permit area is in close proximity to the I northeast trending Snowbird Tectonic Zone, a major crustal fault and shear zone. This regional structural setting is complex, but favourable for the formation and preservation of diamonds in the upper mantle and their transport to surface in kimberlitic magmas during I periodic tectonic activity associated with movement along the Peace River Arch, the Grosmont High, or the Snowbird Tectonic Zone. I However, recent exploration by APEX on behalf of Bohautu has not indicated the presence of local kimberlites at the Athabasca Property. The limited amount and quality of the diamond indicator minerals (DIMs) obtained to date, the majority of wh ich were I collected from fluvial gravel deposits, has no known source within the property. Aeromagnetic surveying failed to detect any high quality/priority magnetic targets that may be related to kimberlite or other similar intrusions. In addition, drilling and ground I geophysical surveying conducted in the southeastern portion of the property proximal to and up-ice of samples yielding confirmed DIMs did not delineate any kimberlites or related I intrusives. Although the regional geological setting for Bohautu's Athabasca Property is I favourable