8 Characterization of Fine-Grained Unconventional Plays (Posters)

Friday, 9 June 2017
9:00 AM - 6:30 PM
Roderick Mah Centre, Ross Glen Hall, EC1050

CHARACTERIZATION OF SEDIMENTARY BEDFORMS OF COLORADO GROUP MUDSTONES

Paper number: 8-1
Program: Theme Sessions
Time: 9:00 AM – 6:30 PM

Authors

Abstract

In this study, the Second White Specks (2WS) Formation, part of the middle Cretaceous Colorado Group, is analyzed for sedimentary heterogeneity. These Cenomanian-Turonian samples are collected from West-central Alberta. The formation primarily consists of laminated calcareous mudstones with abundant fecal pellets composed of calcareous coccoliths debris representing the “white specs”. Integrating CT datasets from core and outcrop samples, 3D geometry of sedimentary bedforms existing in the 2WS Shales and Jumpingpound sandstone are determined.

For this study, outcrop samples are collected from a region south of Calgary. These are cut into slices in order to analyze bedforms in three dimensions. Oriented thin sections of mudstone, cut in three planes, will be used to determine bed microstructure and palaeoflow directions. CT data helps digitalize these slices which are further analyzed by undertaking computer modelling. This relates the geometry of cross bedding to the morphology and behaviors of bedforms.

Geological Society of America Abstracts with Programs. Vol. 49, No. 5

doi: 10.1130/abs/2017RM-293151

© Copyright 2017 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.