Department of Earth SciencesWestern Science

Dr. Guy Plint

Sedimentology, Stratigraphy and Basin Analysis

Guy Plint

Professor
P.Geo.
D.Phil. Oxford, 1981
Office: BGS 1072
Lab: BGS 1077
Phone: 519-661-3179
Fax: 519-661-3198
Email: gplint@uwo.ca


Research Interests

The primary research of my group is focused on the Cretaceous rocks of the Western Canada foreland basin. Fundamentally, we are interested in understanding the processes (tectonism, eustatic change, sediment supply) that controlled deposition, erosion and depositional cyclicity. We have access to all public drilling records (well logs) for the basin, which allows construction of very detailed stratigraphic cross-sections. We employ an allostratigraphic (sequence stratigraphic) approach which permits division of the basin fill into genetic units, related to relative sea-level changes. Mapping of sequence-bounding surfaces allows isopach maps to be constructed, which reveal the complex subsidence history of the basin. This approach also permits mapping of facies belts, and hence regional paleogeography can be reconstructed. The excellent subsurface stratigraphic framework allows correlation to outcrop on the periphery of the basin, allowing sedimentological detail from outcrop to be integrated into the regional picture.

Recent projects have involved both marine and nonmarine units ranging in age from late Albian to early Campanian. Several projects focused on thick mudstone successions which, although superficially monotonous, preserve a very detailed history of tectonic movement of the basin floor. Other studies have revealed evidence for small scale (~10 m) but high frequency (20-100 ky) relative sea level oscillations which are most reasonably explained in terms of glacio-eustasy - despite the popular notion of a mid-Cretaceous ‘greenhouse’ climate. Other studies have examined the relationship between subsidence rate and the character of alluvial environments, including the nature of fluvial systems, and paleosols. Major paleovalley and interfluve systems have been mapped in detail, and drainage patterns can be related to flexural tectonics and to more localised fault movement.

Selected Publications

Cook, T.D., Wilson, M.V.H., Murray, A.M., Plint, A.G., Newbrey, M.G. and Everhart, M.J. 2013, A high-latitude euselachian assemblage from the Early Turonian of Alberta, Canada.  Journal of Systematic Paleontology, 11, 555-587.

Shank, J.A. and Plint, A.G.  2013, Allostratigraphy of the Upper Cretaceous Cardium Formation in subsurface and outcrop in southern Alberta, and correlation to equivalent strata in northwestern Montana, Bulletin of Canadian Petroleum Geology, v. 61, p. 1-40.

Grifi, M.D., Plint, A.G. and Walaszczyk, I., 2013, Rapidly changing styles of subsidence revealed by high-resolution mudstone allostratigraphy: Coniacian of Sweetgrass Arch area, southern Alberta and northern Montana.  Canadian Journal of Earth Sciences, v. 50, p. 439-461.           

Buckley, R.A. and Plint, A.G. 2013, Allostratigraphy of the Peace River Formation (Albian) in north-western Alberta and adjacent British Columbia.  Bulletin of Canadian Petroleum Geology, v. 61, p. 295-330.

Plint, A.G., Macquaker, J.H.S., 2013, Reply to Discussion on: Shallow-water, storm-influenced sedimentation on a distal, muddy ramp: Upper Cretaceous Kaskapau Formation, Western Canada foreland basin.  Journal of Sedimentary Research , v. 83, p. 1200-1201.

Plint, A.G. 2014, Mud dispersal across a Cretaceous prodelta: Storm-generated, wave-enhanced sediment gravity flows inferred from mudstone microtexture and microfacies. Sedimentology, v. 61, p. 609-647.   

McCrea, R.T., Buckley, L.G., Plint, A.G., Currie, P.J., Haggart, J.W, Helm, C.W. and Pemberton, S.G. 2014,  A review of vertebrate track-bearing formations from the Mesozoic and earliest Cenozoic of western Canada.. In: Fossil footprints of western North America, ed. by M.G. Lockley and S.G. Lucas., New Mexico Museum of Natural History and Sciences, Bulletin 62, p. 5-93.

Walaszczyk, I., Shank, J.A., Plint, A.G. and Cobban, W.A., 2014, Inter-regional correlation of disconformities in Upper Cretaceous strata, Western Interior Seaway: Biostratigraphic and sequence-stratigraphic evidence for eustatic change.  Geological Society of America, Bulletin, v. 126, p. 307-316.

Henderson, O.A., Vannelli, K.M. and Plint, A.G., 2014, Allostratigraphy and paleogeography of the Harmon and Cadotte members of the Peace River Formation (middle Albian), west-central Alberta and adjacent British Columbia.  Bulletin of Canadian Petroleum Geology, v. 62, p. 177-212.

Plint, A.G. and Cheadle, B.A. 2014.  Reply to Discussion on Mud dispersal across a Cretaceous prodelta: Storm-generated, wave-enhanced sediment gravity flows inferred from mudstone microtexture and microfacies.  Sedimentology, v. 62, 394-400.

McCrea, R.T., Buckley, L.G.,  Plint, A.G., Lockley, M.B., Matthews, N.A., Noble, T.A., Xing, L., and Krawetz, J.R., 2015, Vertebrate ichnites from the Boulder Creek Formation (Lower Cretaceous: middle to upper Albian) of northeastern British Columbia, with a description of a new avian ichnotaxon, Paxavipes babcockensis ichnogen. et isp. nov.  Cretaceous Research, v. 55, p. 1-18.

Ausich, W.I., Stelck, C.R., Plint, A.G., Buckley, R.A. and Angiel, P.J. 2015, Early Cretaceous (early late Albian) echinoderms from northeastern British Columbia, Canada. Canadian Journal of Earth Sciences, v. 52, p. 235-243.

Buckley, R.A., Plint, A.G., Henderson, O.A., Krawetz, J.R. and Vannelli, K.M. 2015. Ramp sedimentation across a middle Albian, Arctic embayment: Influence of subsidence, eustasy and sediment supply on stratal architecture and facies distribution, Lower Cretaceous, Western Canada Foreland Basin.  Sedimentology, v. 63, 699-742.

Walaszczyk, I., Shank, J.A. and Plint, A.G., 2015, Reply to Discussion on: Inter-regional correlation of disconformities in Upper Cretaceous strata, Western Interior Seaway: Biostratigraphic and sequence-stratigraphic evidence for eustatic change.  Geological Society of America, Bulletin, v. 128, 1053-1055.

van Helmond, N.A.G.M., Sluijs, A., Papadomanolaki, N.M., Plint, A.G., Gröcke, D.R., Pearce, M.A., Eldrett, J.S., Trabucho-Alexandre, J., Walaszczyk, I., van de Schootbrugge, B.   and Brinkhuis, H., 2016, Equatorward migration of dinoflagellates during a cold spell within the Late Cretaceous supergreenhouse.  Biogeosciences, 13, 2859-2872.

Walaszczyk, I., Plint, A.G. and Kennedy, W.J., 2016, Biostratigraphy and Inoceramus survival across the Cenomanian-Turonian (Cretaceous) boundary in the Ram River section, Alberta, Canada.  Acta Geologia Polonica, 66, 715-728.

Plint, A.G., Hooper, E.A., Grifi, M.D., Walaszczyk, I., Landman, N.H., Gröcke, D.R., Trabucho Alexandre, J.P., and Jarvis, I., 2017, Integrated, high-resolution allostratigraphic, biostratigraphic and carbon-isotope correlation of Coniacian strata (Upper Cretaceous), western Alberta and northern Montana. Bulletin of the American Museum of Natural History, 414, 9-52.

Walaszczyk, I., A.G. Plint and N.H. Landman, 2017, Inoceramid bivalves from the Coniacian and basal Santonian (Upper Cretaceous) of the Western Canada Foreland Basin. Bulletin of the American Museum of Natural History, 414, 53-103.

Landman, N.H., Plint, A.G. and Walaszczyk, I., 2017, Scaphitid ammonites from the Upper Cretaceous (Coniacian-Santonian) Western Canada Foreland Basin. Bulletin of the American Museum of Natural History, 414, 104-172.

Vannelli, K.M., Plint, A.G., Buckley, R.A., Krawetz, J.R. and Cunningham, C.M., 2017, An allostratigraphic and paleogeographic framework for the Joli Fou and Pelican formations and contiguous strata (Late Albian, Early Cretaceous) in central Alberta. Bulletin of Canadian Petroleum Geology, 65, 387-423.

Plint, A.G., Krawetz, J.R., Buckley, R.A., Vannelli, K.M. and Walaszczyk, I. 2017, Tectonic, eustatic and climatic controls on marginal marine sedimentation across a flexural depocentre:  Paddy Member of Peace River Formation (Late Albian), Western Canada Foreland Basin.  The Depositional Record, In press, doi: 10.1002/dep2.37.

Collaborations

Dr. David Uličný (Prague), in order to develop high-resolution sequence stratigraphic models by which to compare high-frequency relative sea-level changes in Bohemia and western Canada.

Dr. Darren Gröcke (Durham, UK) & Dr. Ian Jarvis (London, UK), to establish a carbon isotope stratigraphy for the Middle Albian through Santonian Stages in western Canada. In the absence of biostratigraphically useful fossils, this approach offers the possibility of correlating globally to other Cretaceous strata.

Dr. Ireneusz Walaszczyk (Warsaw) is working with us to develop a new molluscan biostratigraphy in the Upper Cretaceous, in order to facilitate detailed inter-continental correlation.

Drs. Rich McCrea and Lisa Buckley (Peace Region Palaeontological Research Centre, BC) are integrating vertebrate tracks (dinosaur, bird) with our stratigraphic, sedimentologic and paleoenvironmental reconstructions.

Courses Taught

Earth Sciences 2260a: From Beds to Basins – an Introduction to Sedimentology and Stratigraphy.

Earth Sciences 4450y: Regional Geology Field School. Ten day field course in Nova Scotia and New Brunswick.

Earth Sciences 4460a: Clastic and carbonate facies and environments.

Geology 9564a/b: Basin Analysis and Sequence Stratigraphy (Graduate course, lectures, labs, research paper, seminar).

Geology 9571a/b: Selected Topics in Sedimentary Geology. (Research paper, seminar)

Students

Omar Al-Mufti, PhD candidate

Matea Drljepan, PhD candidate

Slavena Galic, PhD candidate

El Mahadia Ibrahim Mohammed, PhD candidate

Elizabeth Hooper, PhD candidate

Katharin Pavan, MSc candidate

Arwa Zourob, MSc candidate