Depositional Architecture of Confined Meander Belt Deposits, Lower Cretaceous Grand Rapids Formation, east-central Alberta

The Cretaceous Grand Rapids Formation in east-central Alberta is comprised ofprograding deltaic to marginal marine deposits incised by fluvial to marine-influenced fluvial bodies at several stratigraphic levels. Facies mapping and a high-resolution allostratigraphic framework are used to map the 3D distribution of marginal marine units and fluvial bodies. A confined fluvial meander belt in the Colony Allomember is studied in detail using a high-resolution data set of densely spaced wells and seismic time slices. Sediment distribution within the meander belt is particularly fine-grained (i.e., siltstone-dominated), despite indications that discharge was substantial due to the large scale of channels and point bars imaged in seismic data. The fine-grained character of the meander belt is likely a result of: (1) a propensity for muddy counter point bar preservation at the expense of sandy point bar deposits; and (2) limited supply of sand to the depositional system.

Name thesis:degree_name

Master of Science (MSc)

Discipline thesis:degree_discipline

Geology and Geophysics

Grantor dc:publisher.institution

Graduate Studies

Year dc:date.issued

2016

Author dc:creator

• Coderre, Adam B.

Advisor dc:contributor.advisor

• Pedersen, Per Kent

Committee members dc:contributor.committeemember

• Hubbard, Stephen M.
• Caplan, Mark

• Geology

Statement dc:rights

• University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.

Language dc:language.iso

eng

DOI

http://dx.doi.org/10.11575/PRISM/25555

OAI identifier oai:identifier

oai:ucalgary.scholaris.ca:11023/2816