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http://dx.doi.org/10.9719/EEG.2011.44.6.503

Seismic Stratigraphy of Upper Devonian Carbonates Area in Northern Alberta, Canada  

Lee, Min-Woo (Department of Geology and Earth Environmental Sciences, Chungnam National University)
Oh, Jin-Yong (Research Institute of Natural Sciences, Chungnam National University)
Yun, Hye-Su (Department of Geology and Earth Environmental Sciences, Chungnam National University)
Publication Information
Economic and Environmental Geology / v.44, no.6, 2011 , pp. 503-511 More about this Journal
Abstract
The Upper Devonian Grosmont Formation in northern Alberta, Canada, underlies the erosion unconformity that formed between the Cretaceous and Upper Devonian. The formation is divided into four units on the basis of intercalated shales and showing a typical shelf environment of shallowing-upward. It was possible to separate four units(LG~UG3), considering the seismic interpretation attributes of polarity, continuity, frequency/spacing and amplitude and showing the reflection characteristics of the medium-high amplitude, medium-low frequency, good continuity, and subparallel reflection events. The formation can be interpreted as shelf or platform, based on in-situ core data. However, it is difficult, only with reflection attributes and features, to recognize the boundaries and sedimentary environment of parasequence. Therefore, we try to interprete by parasequence set in this study. The parasequence set was formed by erosion unconformity with systems tracts. The erosion unconformity can be recognized by facies data and karst, erosional surface. Grosmont carbonate deposits ranging from platform and shelf to shelf slope are; by wedge-shaped strata of characterized by complex sigmoid-oblique progradational configurations, reflecting a depositional history of upbuilding and outbuilding in response to sea-level changes. Most of the sedimentary units is interpreted as platforms under regression and lowstand environments that support is evidences. In particular, shale layer at the basal part of the highstand systems tracts represents the regressive to lowstand of sea level.
Keywords
erosional surface; Grosmont Formation; seismic; parasequence set; platform;
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  • Reference
1 Sangree, J.B. and Widmier, J.M. (1977) Seismic stratigraphy and global changes of sea level, part 9: seismic interpretation of clastic depositional facies. American association of petroleum geologist, Memoir, 26, 165-184.
2 Sangree, J.B. and Widmier, J.M. (1977) Seismic stratigraphy and global changes of sea level, part 9: seismic interpretation of clastic depositional facies. American association of petroleum geologist, Memoir, 26, 165-184.
3 Van Wagoner, J.C., Mitchum, R.M., Jr., Campion, K.M. and Rahmanian, V.D. (1990) Siliciclastic sequence stratigraphy in well logs, cores, and outcrops: concepts for high-resolution correlation of time and facies. American Association of Petroleum Geologists Method Exploration Series, 7, 55p.
4 Wilson, J.L. (1975) Carbonate Facies in Geologic History. New York, Heidelberg, Berlin: Springer-verlag, 472p.
5 Buschkuehle, B.E. (2007) An Overview of the Geology of the Upper Devonian Grosmont Carbonate Bitumen Deposit, Northern Alberta, Canada. Natural Resources Research, v.16, n.1(March 2007).
6 Campbell, C.V. (1987) Stratigraphy and facies of the Upper Elk Point Subgroup, Northern Alberta, in Krause, F. F. and Burrowes, O. G., eds., Devonian lithofacies and reservoir styles in Alberta. Secon Internat. Symp. Devon. Syst., Calgary, p.243-286.
7 Cutler, W.G. (1983) Stratigraphy and Sedimentology of the Upper Devonian Grosmont Formation, Northern Alberta. Bulletin of Canadian Petroleum Geology, v.31, n.4(Dec. 1983), p.282-325.
8 Dembicki, E.A. (1994) The Upper Devonian Grosmont Formation: Well-log evaluation and regional mapping of a heavy oil carbonate reservoir in northeastern, Alberta. unpubl. masters thesis, Univ. Alberta, Edmonton, 221p.
9 Dembicki, E.A. and Machel, H.G. (1996) Recognition and delineation of paleokarst zones by the use of wireline logs in the bitumen-saturated Upper Devonian Grosmont Formation of northeastern Alberta, Canada. Am. Assoc. Petroleum Geologists Bull., v.80, n.5, p.695-712.
10 Huebscher, H. (1996) Regional controls on the stratigraphic and diagenetic evolution of the Woodbend group carbonates, north-central Alberta. unpubl. doctoral dissertation, The Univ. Alberta, Edmonton, 231p.
11 James, N.P. (1979) Shallowing-upward sequences in carbonates. In: Walker, R. G. (Ed.), Facies Models. Geoscience Canada, Reprint Series 1, p.109-119.
12 PTAC(Petroleum Technology Alliance Canada) (2007) Low GHG Recovery Technology Scenarios. Technology Information Session.
13 Johnson, J.G., Klapper, G. and Sandberg, C.A. (1985) Devonian eustatic fluctuations in Euramerica. Geological Society of America, Bulletin, 96, p.567-587.
14 Mossop G.D. and Shetsen I. (compilers) (1994) Geological Atlas of the Western Canada Sedimentary Basin. Calgary, Canadian Society of Petroleum Geologists and Alberta Research Council, 510p.
15 Posamentier, H.W. and Chamberlain, C.J. (1993) Sequence-stratigraphic analysis of Viking Formation lowstand beach deposits at Joarcam field, Canada. Spec. Publ. Int. Assoc. Sediment. n.18 : 469-485.
16 Anderson, N.L., Brown, R.J. and Hinds, R.C. (1988) A seismic perspective on the Panny and Trout fields of North-Central Alberta. Canadian Journal of Exploration Geophysics, v.24, n.2(December 1988), p.154-165.
17 Bachu, S. (1995) Synthesis and Model of Formation-Water Flow, Alberta Basin, Canada. AAPG Bulletin, v.79, n.8(August 1995), p.1159-1178
18 Bachu, S., Underschultz, J.R., McPhee, D. and Cotterill, D.K. (1996) Regional geology and hydrostratigraphy in northeast Alberta. AEUB Open File Report 96-16, 161p.
19 Belyea, H.R. (1952) Notes on the Devonian system of the north-central plains of Alberta. Geol. Survey Canada, p.52-27, 66p.
20 Belyea, H.R. (1956) Grosmont formation in the Loon Lake area. Alberta Soc, Petroleum Geology J., v.4, p.66-69.
21 Belyea, H.R. (1956) Grosmont formation in the Loon Lake area. Alberta Soc, Petroleum Geology J., v.4, p.66-69.