Search

Search

Sort results:

Results : 1 - 10 of 12

MAP 600

Bedrock Geology of Alberta

The geology of the Rocky Mountains and the Rocky Mountain Foothills is also the product of compilation with rare instances of new geological interpretation (e.g., the interpretation of bedrock geology beneath drift-filled valleys). The Cretaceous ... Show Abstract

Prior, G.J.  Hathway, B.  Glombick, P.M.  Pana, D.I.  Banks, C.J.  Hay, D.C.  Schneider, C.L.  Grobe, M.  Elgr, R.  Weiss, J.A.  2013-06-17

OFR 2018-01

Outcrop of the Middle Devonian Keg River Formation on the Firebag River, Northeastern Alberta (NTS 74E/11)

Abstract: This report contains the description of an outcrop of the Middle Devonian Keg River Formation along the north bank of the Firebag River west of the Fort Chipewyan winter road bridge. Field descriptions were supplemented with the results of thin-section analyses carried out on six samples from the outcrop, providing additional information on composition, textures, and porosity of the rocks. The outcrop consists of a basal unfossiliferous dolostone containing no other defining features, a series of laminated and tabular-bedded dolostone beds originating from a lagoonal to intertidal paleoenvironment and a capping stromatoporoid-biostromal to -biohermal dolostone. Post-depositional alteration processes interpreted from outcrop and thin-section observations include marine cementation, recrystallization, dolomitization, dissolution, fracturing, hydrocarbon migration, and late-stage calcite cementation. Dolomitization of the original limestone obscured, but did not completely obliterate original sedimentary structures. Observed porosity types include inter- and intraparticle, intercrystalline, and solution-enlarged porosity. Porosity values range between 10% and 46%, with the values of >20% found in dolomitized peloidal and fragmental grainstone and stromatoporoid bindstone in the biostromal to biohermal part of the outcrop.   Place Keywords 74d alberta canada firebag river fort mckay fort mcmurray Theme Keywords depositional environment devonian dolomite elk point group geology keg river formation porosity

Schneider, C.L.  Grobe, M.  Leighton, L.R.  2018-02-01

OFR 2018-06

Geochronology in Support of the Alberta Table of Formations: Rhenium-Osmium Isotope Dating of Selected Devonian and Jurassic Core Samples from Central and Northern Alberta

Geochronology in Support of the Alberta Table of Formations: Rhenium-Osmium Isotope Dating of Selected Devonian and Jurassic Core Samples from Central and Northern Alberta The samples were collected from core hosted by the Alberta Energy Regulator ... Show Abstract

Pana, D.I.  Creaser, R.A.  Toma, J.  Playter, T.L.  Corlett, H.  Hauck, T.E.  Peterson, J.T.  Grobe, M.  Poulton, T.P.  2018-06-05

OFR 2013-05

Regional Cross-Sections of Devonian Stratigraphy in Northeastern Alberta (NTS 74D, E)

In this report, we present three regional cross-sections of the Devonian in subsurface along east-west and north-south trend lines in a study area encompassing Twp. 87 to 98, Rge. 3 to 15, W 4th Mer, Alberta. Devonian strata are included in OSCRIP ... Show Abstract

Schneider, C.L.  Grobe, M.  2013-09-30

OFR 2014-08

Outcrops of the Lower Waterways Formation (Firebag and Calumet Members) on the Clearwater, Athabasca and Firebag Rivers, Alberta (NTS 74D, E)

Outcrops of the Lower Waterways Formation (Firebag and Calumet Members) on the Clearwater, Athabasca and Firebag Rivers, Alberta (NTS 74D, E) Alberta Geological Survey geologists and University of Alberta paleontologists visited several Waterways ... Show Abstract

Schneider, C.L.  Grobe, M.  Hein, F.J.  Leighton, L.R.  Forcino, F.L.  2014-09-26

OFR 2015-04

Outcrops of the Upper Devonian Moberly Member (Waterways Formation) on the Athabasca River West of Fort McMurray, Alberta (NTS 74D)

Outcrops of the Upper Devonian Moberly Member (Waterways Formation) on the Athabasca River West of Fort McMurray, Alberta (NTS 74D) Joint fieldwork completed by Alberta Geological Survey geologists and University of Alberta paleontologists over the ... Show Abstract

Schneider, C.L.  Leighton, L.R.  Forcino, F.L.  Grobe, M.  2015-07-14

OFR 2015-05

Paleotopographic Reconstruction and Subcrop Geological Mapping of the Sub-Cretaceous Unconformity in Central Alberta: Methodology and Results

Paleotopographic Reconstruction and Subcrop Geological Mapping of the Sub-Cretaceous Unconformity in Central Alberta: Methodology and Results The paleotopographic map depicts the relief and river valley networks of the paleo-ground surface ... Show Abstract

Mei, S.  Bechtel, D.J.  Grobe, M.  Palombi, D.  2015-04-06

OFR 2012-19

Geology of the Upper Devonian Moberly Member (Waterways Formation, Beaverhill Lake Group) Outcrops in Fort McMurray, Alberta (NTS 74D/11)

Geology of the Upper Devonian Moberly Member (Waterways Formation, Beaverhill Lake Group) Outcrops in Fort McMurray, Alberta (NTS 74D/11) Within the town of Fort McMurray, the Upper Devonian Moberly Member (Waterways Formation, Beaverhill Lake ... Show Abstract

Schneider, C.L.  Grobe, M.  Hein, F.J.  2013-04-10

OFR 2012-20

Outcrops of the La Loche, Contact Rapids, and Keg River Formations (Devonian) on the Clearwater River: Alberta (NTS 74D/9) and Saskatchewan (NTS 74C/12)

Outcrops of the La Loche, Contact Rapids, and Keg River Formations (Devonian) on the Clearwater River: Alberta (NTS 74D/9) and Saskatchewan (NTS 74C/12) In this area, sedimentary rocks of the Elk Point Group rest directly on crystalline Precambrian ... Show Abstract

Schneider, C.L.  Grobe, M.  Hein, F.J.  2013-04-10

OFR 2015-03

Outcrops of the Upper Devonian Moberly Member (Waterways Formation) on the Athabasca River near Fort McMurray, Alberta (NTS 74D/14)

Outcrops of the Upper Devonian Moberly Member (Waterways Formation) on the Athabasca River near Fort McMurray, Alberta (NTS 74D/14) Joint fieldwork completed by Alberta Geological Survey geologists and University of Alberta paleontologists over the ... Show Abstract

Schneider, C.L.  Leighton, L.R.  Forcino, F.L.  Grobe, M.  2015-07-14

Filtered By

Publication Type