Portal de Periódicos da CAPES

Integrated Ichnology, Sedimentology and Stratigraphy of the Lower Cretaceous Sparky Alloformation (Mannville Group), Lloydminster Area, west-central Saskatchewan, Canada

2012; Canadian Society of Petroleum Geologists; Volume: 60; Issue: 2 Linguagem: Inglês

10.2113/gscpgbull.60.2.69

2368-0261

Alireza Morshedian, James A. MacEachern, Shahin E. Dashtgard,

Geological and Geochemical Analysis

Research Article| June 01, 2012 Integrated Ichnology, Sedimentology and Stratigraphy of the Lower Cretaceous Sparky Alloformation (Mannville Group), Lloydminster Area, west-central Saskatchewan, Canada Alireza Morshedian; Alireza Morshedian Applied Research in Ichnology and Sedimentology (ARISE) Group Simon Fraser University Department of Earth Sciences 8888 University Drive Burnaby, BC V5A 1S6 ama64@sfu.ca Search for other works by this author on: GSW Google Scholar James A. MacEachern; James A. MacEachern Applied Research in Ichnology and Sedimentology (ARISE) Group Simon Fraser University Department of Earth Sciences 8888 University Drive Burnaby, BC V5A 1S6 jmaceach@sfu.ca Search for other works by this author on: GSW Google Scholar Shahin E. Dashtgard Shahin E. Dashtgard Applied Research in Ichnology and Sedimentology (ARISE) Group Simon Fraser University Department of Earth Sciences 8888 University Drive Burnaby, BC V5A 1S6 sdashtga@sfu.ca Search for other works by this author on: GSW Google Scholar Bulletin of Canadian Petroleum Geology (2012) 60 (2): 69–92. https://doi.org/10.2113/gscpgbull.60.2.69 Article history received: 06 Sep 2011 accepted: 09 Jul 2012 first online: 12 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Alireza Morshedian, James A. MacEachern, Shahin E. Dashtgard; Integrated Ichnology, Sedimentology and Stratigraphy of the Lower Cretaceous Sparky Alloformation (Mannville Group), Lloydminster Area, west-central Saskatchewan, Canada. Bulletin of Canadian Petroleum Geology 2012;; 60 (2): 69–92. doi: https://doi.org/10.2113/gscpgbull.60.2.69 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentBy SocietyBulletin of Canadian Petroleum Geology Search Advanced Search Abstract The Lower Cretaceous Sparky Alloformation in the Lloydminster area of Saskatchewan, Canada consists of a complex succession of deltaic and marginal-marine deposits reflecting progradation towards the north and northwest (N-NW). The bounding discontinuities used to delineate the Sparky Allomember correspond to marine flooding surfaces (FS). Based on the integration of ichnological and sedimentological characteristics of succession, ten discrete facies have been identified. These are combined into five recurring facies associations.Facies Association 1 (FA1) comprises sediments deposited below fairweather wave base but above storm wave base. Facies associations 2 and 3 (FA2 and FA3) coarsen upward and represent the progradation of wave- and storm-dominated shorefaces as well as mixed river- and wave-influenced deltas, respectively. Facies Association 4 (FA4) typically cuts through FA3, and displays a fining-upward trend, and is interpreted as distributary channel deposits. Complete cycles of FA2 and FA3, wherein the tops of the cycles have not been removed by downcutting channels, are capped by coastal plain/delta plain deposits of Facies Association 5 (FA5). The Sparky Alloformation terminates at an upper contact marked by renewed marine transgression and the formation of a regionally extensive transgressive surface of erosion (TSE).Three coarsening-upward cycles are identified within the Sparky Alloformation, each bounded by allogenically produced flooding surfaces. These units, termed Lower, Middle and Upper allomembers, are characterized by wave-and storm-dominated shorefaces and associated mixed river-and wave-influenced deltaic successions reflecting progradation towards the N-NW. The Sparky Alloformation consists of sediments deposited during periods of pronounced progradation and corresponds to a highstand systems tract. You do not currently have access to this article.