APEX Geoscience Ltd, Alberta Diamond Update, conclusion (Part 3):
By APEX Geoscience Ltd.
Edmonton Office: Toronto Office:
Suite 200, 9797 - 45th Avenue Suite 218, 920 Yonge Street
Edmonton, Alberta T6E 5V8 Toronto, Ontario, M4W 3C7
Email: apexgeo@compusmart.ab.ca Email: Apexto@istar.ca
Tel: 403-439-5380 Tel: 416-923-8254
Fax: 403-433-1336 Fax: 416-923-8304
----------
Conclusion
In conclusion, there are several reasons for believing Alberta is geologically
favourable for the existence of important diamondiferous kimberlitic diatremes, including:
(1) thick Precambrian continental crust is present in both north-central and southern
Alberta; (2) a complex regional and local structural setting exists in places in both the
southern and northern parts of the province, which include numerous long-lived faults and
faulted zones that may have facilitated access of kimberlitic magmas from the deep mantle
to the surface; (3) there are stratigraphically and geochemically anomalous bentonites
which may be derived from local volcanic or kimberlitic extrusive centers; (4) there are
several areas within Alberta which have been identified by widely spaced sampling to
contain anomalous diamond indicator grains that in some places include micro or macro
diamonds that have not, as yet, been traced to a bedrock source; and most importantly,
(5) there are at least 15 kimberlitic diatremes in north-central and northwest Alberta, of
which 10 are known to be diamondiferous and several are reported to have micro diamond
and macro diamond counts which are similar to the early phases of sampling of the
diamondiferous kimberlites which exist at the economically important Lac de Gras region,
N.W.T. In short, we conclude that, at present,
ALBERTA IS INADEQUATELY EXPLORED FOR DIAMONDIFEROUS DEPOSITS.
-------------------
SELECTED REFERENCES
Dufresne, M.B., Leckie, D.A. and Eccles, D.R., In Press. Study of the geochemical and
stratigraphic setting of the Shaftesbury Formation in northern Alberta and its
potential to host ore deposits; Geological Survey of Canada Open File Report.
Dufresne, M.B., Eccles, D.R., McKinstry, B., Schmitt, D.R., Fenton, M.M., Pawlowicz, J.G.
and Edwards, W.A.D., 1996. The Diamond Potential of Alberta; Alberta Geological
Survey Bulletin No. 63, 158 p.
Dufresne, M.B., Olson, R.A., Schmitt, D.R., McKinstry, B., Eccles, D.R., Fenton, M.M.,
Pawlowicz, J.G., Edwards, W.A.D. and Richardson, R.J.H., 1994. The Diamond
Potential of Alberta: A regional synthesis of the structural and stratigraphic setting,
and other preliminary indications of diamond potential; Alberta Research Council
Open File Report, 1994-10, 349 p.
Dufresne, M.B., Henderson, B.A.,Fenton, M.M., Pawlowicz, J.G. and Richardson, R.J.H.,
1994. The mineral deposits potential of the Marguerite River and Fort McKay areas,
Northeast Alberta; Alberta Research Council Open File Report, 1994-9, 67 p.
Eccles, D.R., Dufresne, M.B. and Kjarsgaard, B.A., 1997. Heavy mineral geochemical
analysis of the Mountain Lake Diatreme; In Geology of a Late Cretaceous possible
kimberlite at Mountain Lake, Alberta - chemistry, petrology, indicator minerals,
aeromagnetic signature, age, stratigraphic position and setting; Geological Survey
of Canada Open File 3441, p. 159-174.
Eccles, D.R., Dufresne, M.B. and Lywood, P., In Press. Reconnaissance study of
diamond and metallic mineral potential for the Kakwa/Wapiti area, west-central
Alberta; Alberta Geological Survey Open File 1997-04.
Fenton, M.M., Pawlowicz. J.G., Andriashek, L.O., Dufresne, M.B., Chao, D., Price, M. and
Goulet, D., In Press. Wapiti Map Sheet 83L: Quaternary geology, till mineralogy
and geochemistry, preliminary report; Alberta Geological Survey Open File Report.
Fenton, M.M., Pawlowicz, J.G. and Dufresne, M.B., 1994. Reconnaissance mineral and
geochemical survey with emphasis on northern Alberta; MDA Project M92-04-006,
year 2; Alberta Research Council Open File Report 1994-21.
Fenton, M.M., Pawlowicz, J.G. and Dufresne, M.B., 1996. Reconnaissance mineral and
geochemical survey with emphasis on northern Alberta: project final report: MDA
Project M92-04-006; Alberta Geological Survey Open File Report 1996-07.
Hamilton, W.N. and Olson, R.A. 1994. Mineral resources of the Western Canada
Sedimentary Basin; in G.M. Mossop and I. Shetsen (eds.), Atlas of the Western
Canada Sedimentary Basin, Alberta Geological Survey of the Alberta Research
Council, and Canadian Society of Petroleum Geologists, pp. 483-501.
Olson, R.A. on behalf of the Alberta Chamber of Resources, 1987. Alberta -
Opportunities for Metallic Minerals; a document jointly prepared by Trigg, Woollett,
Olson Consulting Ltd., and the Alberta Geological Survey of the Alberta Research
Council, and subsequently published and distributed by the Alberta Chamber of
Resources.
Olson, R.A., Dufresne, M.B., Freeman, M.E., Richardson, R.J.H. and Eccles, R.E. 1994.
Regional metallogenic evaluation of Alberta; Alberta Research Council Open File
Report 1994-8.
Olson, R.A., Iannelli, T.R., and Gilmour, W.R., 1994. Regional Stratigraphic Study,
Orientation Heavy Mineral Stream Sediment Study, Southern Alberta Rift,
Southwest Alberta (Canada -Alberta MDA Project M93-04-034); Alberta Geological
Survey, Alberta Research Council Open File Report 1994-7.
Williamson, J., Dufresne, M.B. and Olson, R.A., 1993. The Southern Alberta Rift in
southwest Alberta, Program to Identify Targets for Metallic Mineral Exploration;
Alberta Research Council Open File Report 1993-13A and 13B.
------------------------
--END!
-j
:> |
