A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta
Thesis (Ph.D, Geological Sciences & Geological Engineering) -- Queen's University, 2014-09-15 17:47:09.822 The Early Cretaceous Bluesky Formation (Mannville Group) in the Peace River area of west-central Alberta, Canada, is a complexly stratified tide-dominated sediment body composed of mon...
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ftqueensuniv:oai:https://qspace.library.queensu.ca:1974/12461 2024-06-02T08:12:52+00:00 A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta Mackay, Duncan Geological Sciences and Geological Engineering Dalrymple, Robert W. 2014-09-15 17:47:09.822 application/pdf http://hdl.handle.net/1974/12461 eng eng Canadian theses http://hdl.handle.net/1974/12461 This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner. Gething Bluesky Mannville Tidal Tide-Dominated Incised Valley Peace River Sequence Stratigraphy Geomorphic Element Turbidity Maximum Delta Suspended Sediment Facies Fluid Mud Facies Analysis Sedimentology Estuary thesis 2014 ftqueensuniv 2024-05-06T10:47:33Z Thesis (Ph.D, Geological Sciences & Geological Engineering) -- Queen's University, 2014-09-15 17:47:09.822 The Early Cretaceous Bluesky Formation (Mannville Group) in the Peace River area of west-central Alberta, Canada, is a complexly stratified tide-dominated sediment body composed of monolithic and heterolithic sandstone. The Bluesky Formation is tide-dominated and was deposited during the latter part of a third-order transgressive systems tract. The Bluesky Formation is divisible into two valley-bounded sequences, informally referred to in this study as the “lower Bluesky unit” and the “upper Bluesky unit”. The lower Bluesky unit is composed of tide-dominated deltaic deposits. The upper Bluesky unit is composed of tide-dominated estuarine deposits. The lower Bluesky unit has abundant dynamically deposited mudstone layers (comprising 5-40% of most facies), many of which are interpreted to have been deposited under conditions of moderate to high suspended-sediment concentration (1-1000 g L-1) and appreciable current speeds (> 0.2 ms-1). The upper Bluesky unit, by contrast, has more sparsely distributed mudstone layers (comprising 0-15% of most facies) deposited primarily during slackwater and under conditions of relatively low suspended-sediment concentrations (< 1 g L-1). Both units are composed predominantly of subtidal and lower intertidal channel-bar and tidal-flat deposits. However, the most seaward deposits of the deltaic lower Bluesky unit contain sandstone-dominated heterolithic delta-front and mouth-bar deposits, whereas the most seaward environments of the estuarine upper Bluesky unit contain monolithic tidal sand-ridge deposits. The Bluesky represents deposition in slightly more seaward locations than the underlying Gething Formation, which is composed of lower-energy mudstone-rich facies of a fluvially dominated depositional system. Both the lower and upper Bluesky units are broadly aggradational with several autogenic internal erosional discontinuities, suggesting that high-energy ... Thesis Peace River Queen's University, Ontario: QSpace Canada Bluesky ENVELOPE(-118.236,-118.236,56.067,56.067) |
institution |
Open Polar |
collection |
Queen's University, Ontario: QSpace |
op_collection_id |
ftqueensuniv |
language |
English |
topic |
Gething Bluesky Mannville Tidal Tide-Dominated Incised Valley Peace River Sequence Stratigraphy Geomorphic Element Turbidity Maximum Delta Suspended Sediment Facies Fluid Mud Facies Analysis Sedimentology Estuary |
spellingShingle |
Gething Bluesky Mannville Tidal Tide-Dominated Incised Valley Peace River Sequence Stratigraphy Geomorphic Element Turbidity Maximum Delta Suspended Sediment Facies Fluid Mud Facies Analysis Sedimentology Estuary Mackay, Duncan A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta |
topic_facet |
Gething Bluesky Mannville Tidal Tide-Dominated Incised Valley Peace River Sequence Stratigraphy Geomorphic Element Turbidity Maximum Delta Suspended Sediment Facies Fluid Mud Facies Analysis Sedimentology Estuary |
description |
Thesis (Ph.D, Geological Sciences & Geological Engineering) -- Queen's University, 2014-09-15 17:47:09.822 The Early Cretaceous Bluesky Formation (Mannville Group) in the Peace River area of west-central Alberta, Canada, is a complexly stratified tide-dominated sediment body composed of monolithic and heterolithic sandstone. The Bluesky Formation is tide-dominated and was deposited during the latter part of a third-order transgressive systems tract. The Bluesky Formation is divisible into two valley-bounded sequences, informally referred to in this study as the “lower Bluesky unit” and the “upper Bluesky unit”. The lower Bluesky unit is composed of tide-dominated deltaic deposits. The upper Bluesky unit is composed of tide-dominated estuarine deposits. The lower Bluesky unit has abundant dynamically deposited mudstone layers (comprising 5-40% of most facies), many of which are interpreted to have been deposited under conditions of moderate to high suspended-sediment concentration (1-1000 g L-1) and appreciable current speeds (> 0.2 ms-1). The upper Bluesky unit, by contrast, has more sparsely distributed mudstone layers (comprising 0-15% of most facies) deposited primarily during slackwater and under conditions of relatively low suspended-sediment concentrations (< 1 g L-1). Both units are composed predominantly of subtidal and lower intertidal channel-bar and tidal-flat deposits. However, the most seaward deposits of the deltaic lower Bluesky unit contain sandstone-dominated heterolithic delta-front and mouth-bar deposits, whereas the most seaward environments of the estuarine upper Bluesky unit contain monolithic tidal sand-ridge deposits. The Bluesky represents deposition in slightly more seaward locations than the underlying Gething Formation, which is composed of lower-energy mudstone-rich facies of a fluvially dominated depositional system. Both the lower and upper Bluesky units are broadly aggradational with several autogenic internal erosional discontinuities, suggesting that high-energy ... |
author2 |
Geological Sciences and Geological Engineering Dalrymple, Robert W. |
format |
Thesis |
author |
Mackay, Duncan |
author_facet |
Mackay, Duncan |
author_sort |
Mackay, Duncan |
title |
A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta |
title_short |
A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta |
title_full |
A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta |
title_fullStr |
A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta |
title_full_unstemmed |
A Subsurface Sedimentology Analysis of Tide-Dominated Deposits in the BlueSky Formation (Early Cretaceous), Peace River Area, West Central Alberta |
title_sort |
subsurface sedimentology analysis of tide-dominated deposits in the bluesky formation (early cretaceous), peace river area, west central alberta |
publishDate |
2014 |
url |
http://hdl.handle.net/1974/12461 |
long_lat |
ENVELOPE(-118.236,-118.236,56.067,56.067) |
geographic |
Canada Bluesky |
geographic_facet |
Canada Bluesky |
genre |
Peace River |
genre_facet |
Peace River |
op_relation |
Canadian theses http://hdl.handle.net/1974/12461 |
op_rights |
This publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner. |
_version_ |
1800759442161008640 |