146 research outputs found
SS Fort McMurray
No full textPhotograph - The Hudson's Bay Company steamer, S.S. Fort McMurray, built in 1912. Athabasca, Albert
Dog Train Leaving Fort McMurray, Alberta
No full textPhotograph - Four dog teams with sleds, Fort McMurray, Alberta. A note on the back reads: Dear Mr. Feuereisen: After eight days I managed to go through the Grand Rapids. The canoe capsized but I managed to rescue everything. The last five rapids I could manage in two days, but only with luck the Grand Rapids. I would be dead without any luck. Many greetings, Your Rolan
Task utility and norms for the Preschool Executive Task Assessment (PETA)
Get PDFEarlier identification of executive deficits in preschool children using an ecological approach would give more scope for intervention. The Preschool Executive Task Assessment (PETA) was developed to resemble an everyday age-appropriate task in order to examine the self-direction and integration of executive functions during a multistep task. It was designed so that performance can be evaluated in a microanalytic way and so individualized feedback and support can be easily communicated. The utility of the PETA was assessed with 166 three-to five-year olds. Results showed improved performance with increasing age and verbal intellectual quotient as well as good task reliability and utility. Evidence for influence of socioeconomic status, gender, and use of self-talk was also observed. Clinical applications and future directions of this novel measure are discussed
A European union and Canadian review of public health nursing preparation and practice.
No full textThis study explores the preparation and role of the public health nurse (PHN) across European Union (EU) countries (Finland, Sweden, and the United Kingdom) and Canadian provinces (Alberta, New Brunswick, and Prince Edward Island)
Impact of reservoir heterogeneity on oil migration and the origin of oil-water contacts: McMurray Formation type section, Alberta, Canada
No full textThis study documents and attempts to describe the processes leading to the formation and preservation of exposed oil, water, and paleo-gas contacts at the McMurray Formation type section, Alberta, Canada. The McMurray Formation type section, a part of the Athabasca Oil Sands Deposit (AOSD), the largest exhumed oil reservoir on Earth, is unparralled, still underutilized, natural laboratory for veryfing and refining existing, and developing new concepts, for oil migration and post oil-emplacement fluid diffusion and biodegradation processes in a sedimentologically complex reservoir setting. Exposures, coupled with adjacent borehole data, provide a three-dimensional insight into reservoir heterogeneities and their influence on oil migration, entrapment, post-emplacement fluid mixing, and biodegradation processes and products, in a hierarchical and chronological order from early charge to present-day conditions. The principles of oil above water and of horizontal or tilted oil/water contacts are challenged by outstanding examples of: (i) centimetre to decimetre scale inter-fingering oil-water stringers/contacts, created by capillary pressure differences and partial charge; (ii) irregular oil-water contacts in both clean and heterogeneous reservoirs characterized by gravitational effects caused by severe biodegradation that caused the formation of extra heavy-oil commonly referred to as “bitumen” that sank through the water column; (iii) occurrences of multiple metre-scale intervals with less than 50% oil saturation, commonly referred to as lean zones that formed during microbial gas generation following oil entrapment. Studied contacts provided excellent opportunity to study oil migration and charging mechanisms from pore and sedimentary bed to reservoir scale at various stages of oil migration into the reservoir, as well as oil, water, and gas re-migration within the reservoir (trap). Described exposures can play an additional role in advancing geoscience education, petroleum exploration, reservoir characterization, field development, and production optimization studies.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Applied Geolog
Sedimentological and ichnological characterization of small- and large-scale channel IHS in the Middle McMurray Formation of the Central-C area, McMurray Sub-Basin, Alberta
No full textThe Lower Cretaceous McMurray Formation is interpreted as a brackish-water, tidally influenced estuarine complex. The study area encompasses Townships 90-95, Ranges 10-14W4 in northeast Alberta. Facies analysis of 41 cored wells led to the identification and differentiation of large- and small-scale lateral accretion IHS associated with tidal-fluvial channels. Five sedimentary facies are assembled into four recurring facies associations to characterize these channel systems. Sedimentological and ichnological characteristics point to elevated physico-chemical stress in most large-scale channel successions, interpreted to be the consequence of carrying the bulk of the fluvial discharge through these trunk channel systems. By contrast, small-scale channels display less evidence of physico-chemical stress indicating they carried little fluvial flow. Abandoned channel deposits likewise show reduced paleoenvironmental stress. This study suggests that the deposits of small-scale channels and abandoned channels are the most suitable for assessing the degree of marine influence in the study area.IchnologyTidal-fluvialMarine InfluenceSmall-scale ChannelsLarge-scale ChannelsSedimentolog
Salt tectonism and distribution of brackish-water trace-fossils in the Cretaceous McMurray Formation, Athabasca Oil Sands, Alberta Foreland Basin
No full textA proposed salt tectonism-saline seep model provides a novel alternative to the two widely accepted but irreconcilable depositional models for middle McMurray Formation strata of the Lower Cretaceous Athabasca Oil Sands deposit. Established interpretations of a fluvial axial channel belt along the eastern Alberta Foreland Basin contrast with a 100s km long estuarine marine-fluvial transition zone setting that was characterized by brackish-water trace-fossil laden beds. The architecture of a highly sinuous fluvial meander channel-belt with bank full depths of 30-40 m furthermore is not compatible with an estuary having a 10s m-thick salt wedge extending 100s of km upstream. This new model proposes that the removal of the underlying 100 m-thick Middle Devonian salt section occurred across 1000s of km² and resulted in voluminous saline seeps up-section into river channel fills of the middle McMurray Formation. Southward transgression by a Boreal Sea tongue terminated fluvial lower McMurray Formation deposition, and transported brackish-water larvae inland along the tide-impacted backwater length. This zoology was sustained along the fluvial channel belt by the saline seeps that elevated salinity levels in channel muds as the fluvial system dominance reasserted. Brackish-water macroinvertebrates rapidly adapted to new terrestrial food sources in these fluvial channels, precluding the necessity for a salt wedge to have extended inland for 100s of km. This research presents the first quantitative analysis of the McMurray Formation trace-fossil distribution patterns. Quaternary saline surface seep trends are proposed to represent intermittent seepage up-section since the Early Cretaceous.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
Alignment of fluvio-tidal point bars in the middle McMurray Formation: implications for structural architecture of the Lower Cretaceous Athabasca Oil Sands Deposit, northern Alberta
No full textThe northern Athabasca Oil Sands Deposit accumulated on sub-Cretaceous structure partially configured by multi-stage pre-Cretaceous salt dissolutions in Prairie Evaporite (Middle Devonian) substrate that continued concurrent with deposition of McMurray Formation (Aptian) strata. Dissolution fronts only 250 m below advanced along NW- and NE-oriented fracture-fault lineaments that coalesced into larger salt removal areas. This structural grain was transmitted to the overlying dissected Upper Devonian karst topography draped by lower McMurray braided rivers along a lattice-like channel network. The dominant NW structural grain continued during middle McMurray deposition with fluvial-estuarine point bars aligned along subparallel tidal channels. Regional salt removal fronts concurrent with middle McMurray deposition migrated north of the Bitumount Trough, resulting in the 200 km² central collapse. The northern Athabasca Deposit area was configured as a funnel-shaped lower estuary structure consisting of aligned Upper Devonian-lower McMurray fault block terraces that stepped down northward into the central collapse. Sinuous river channels of the upper estuary, constrained along stable substrate of the main paleovalley, flowed northward onto the unstable floor of this funnel-form lower estuary. The main paleovalley fairway branched into multiple 10s of km long sub-parallel fluvio-estuarine tidal channels aligned parallel to the NW structural grain. Sand transport fairways cascaded over the step down terraces and permitted aggradations of overlying fluvio-tidal point bars to accumulate into giant commercially attractive sand complexes. The internal architecture of these 10s of meters thick sand deposits included deposit-wide erosion surfaces resulting from cycles of collapse-subsidence, stabilized substrate and erosion, and renewed subsidence and aggradation.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Oil Sands
Get PDFNotes - Written by Martha Kostuch during the Fort McMurray Oil Sands Summitt (3 pages
RCMP Route - 08
No full textPhotograph - A loaded sled belonging to Richard Smith and Mark Champagne on a trip to retrace an RCMP patrol route from Athabasca to Fort McMurray, Albert
- …
