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Permanent link (DOI): https://doi.org/10.7939/R3D21RZ47

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The sedimentological and ichnological characteristics of inclined heterolithic stratification (IHS) of modern and ancient fluvio-tidal systems Open Access

Descriptions

Other title
Subject/Keyword
Inclined Heterolithic Stratification (IHS)
Ichnology
Sedimentology
Fluvio-tidal transition (FTZ)
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Shchepetkina, Alina
Supervisor and department
S. George Pemberton (Earth and Atmospheric Sciences)
Murray K. Gingras (Earth and Atmospheric Sciences)
Examining committee member and department
Gabriela Mángano (Geological Sciences, University of Saskatchewan)
Alison Murray (Biological Sciences)
Octavian Catuneanu (Earth and Atmospheric Sciences)
Department
Department of Earth and Atmospheric Sciences
Specialization

Date accepted
2016-09-27T10:21:10Z
Graduation date
2016-06:Fall 2016
Degree
Doctor of Philosophy
Degree level
Doctoral
Abstract
Modern and ancient fluvio-tidal sedimentary successions are studied in order to enhance understanding of sedimentological, ichnological, and, if possible, stratigraphic relations in the rock record. Modern sedimentary environments investigated include the inner estuary to fluvial reach (inclusive of the fluvio-tidal transition zone) of the mud-dominated, macrotidal Petitcodiac River estuary, New Brunswick, Canada, and the sand-dominated, micro- to mesotidal Ogeechee River estuary, Georgia, USA. The ancient paleoestuarine environment, namely, the early Cretaceous middle McMurray Formation, Alberta, Canada, has been examined by applying process ichnological framework in order to refine the paleogeographic interpretations and distinguish between the tidally influenced fluvial and tidally influenced estuarine settings. The macrotidal Petitcodiac River estuary has also been used as a laboratory to test the significance of flocculation as a crucial process in the rapid removal of large amounts of sediments from suspension. Mud floccule ripples poorly known from the rock record and barely documented in the modern sedimentary environments, are reported from the intertidal flats of the upper Petitcodiac River estuary. The presented floccule ripples are current-generated, non-episodic in nature, are characterized by morphometric and grain-size data, and constrained by the observed physical processes. Moreover, this thesis explores the advantages of using the high-resolution SWIR hyperspectral imagery to enhance the visibility of physical and biological sedimentary structures, especially within coarse-grained, bitumen-saturated sediments. One well within the middle McMurray Formation (Kearl Oil Sands area) has been analyzed to ascertain the usefulness of this technique, make new observations, support previously made environmental interpretations, and, in some cases, change the paleoenvironmental interpretations. Finally, a new removable-cap suction corer, developed within the course of this thesis work, that is inexpensive to construct, light in weight, highly portable, and designed to extract any core diameter, is presented.
Language
English
DOI
doi:10.7939/R3D21RZ47
Rights
This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for the purpose of private, scholarly or scientific research. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
Citation for previous publication
Shchepetkina, A., Gingras, M.K., and Pemberton, S.G., 2016. Sedimentology and ichnology of the fluvial reach to inner estuary of the Ogeechee River estuary, Georgia, USA. Journal of Sedimentary Geology, v. 342, p. 202-217Shchepetkina, A., Gingras M.K., Pemberton S.G., and MacEachern, J.A., 2016. What does the ichnological content of the middle McMurray Formation tell us? Bulletin of Canadian Petroleum Geology, v. 64, p. 24-46Shchepetkina, A., Gingras, M.K., Zonneveld, J-P., and Pemberton, S.G., 2016. Sedimentary fabrics of the macrotidal, mud-dominated, inner estuary to fluvio-tidal transition zone, Petitcodiac River Estuary, NB, Canada. Sedimentary Geology, v. 333, p. 147-163Shchepetkina, A., Herbers, D., Gingras M.K., and Pemberton S.G., 2015. The removable-cap suction corer: an inexpensive and durable device to extract unconsolidated, wet sediments. Journal of Sedimentary Research, v. 85, p. 1431–1437Shchepetkina, A., Gingras, M.K., and Pemberton, S.G., 2016. Sedimentological and Ichnological Characteristics of the Inner Estuary, Fluvio-Tidal Transition and Riverine Reach of the Ogeechee River Estuary, GA, USA. American Association of Petroleum Geologists, Search and Discovery Article #90259Shchepetkina, A., Gingras, M.K., Zonneveld, J-P., and Pemberton, S.G., 2015. Sedimentary Fabrics of the Inner Estuary and Fluvio-Tidal Transition Zone of the Petitcodiac River Estuary, NB, CanadaShchepetkina, A., Gingras, M.K., Zonneveld, J.-P., and Pemberton, S.G., 2015. Clay and silt flocculation, Petitcodiac River Estuary, New Brunswick, Canada. ATLAS Symposium, Department of Earth and Atmospheric Sciences, University of AlbertaShchepetkina, A., Gingras, M.K., Zonneveld, J-P., and Pemberton, S.G., 2014. Clay and silt flocculation at the Petitcodiac River Estuary, New Brunswick, Canada. Geological Society of America Abstracts with Programs, v. 46, no. 6, p. 769Shchepetkina, A., 2014. The sedimentological and ichnological characteristics of the mud-dominated fluvio-tidal deposits, the Petitcodiac River Estuary, NB, Canada. AAPG Bulletin, v. 98, p. 184-185Shchepetkina, A., Gingras, M.K., and Pemberton, S.G., 2014. The sedimentological and ichnological characteristics of the mud-dominated fluvio-tidal deposits, the Petitcodiac River Estuary, NB, Canada. American Association of Petroleum Geologists, Search and Discovery Article #90183Shchepetkina, A.*, Gingras, M.K., and Pemberton, S.G., 2013. Sedimentological and Ichnological Analysis of the McMurray IHS (Kearl Area). American Association of Petroleum Geologists, Search and Discovery Article # 50842

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