Stratigraphic architecture of a regressive strand plain, Finders Beach, North Stradbroke Island, Queensland, Australia

Gontz, Allen M., Moss, Patrick T. and Wagenknecht, Ekatherina K. (2014) Stratigraphic architecture of a regressive strand plain, Finders Beach, North Stradbroke Island, Queensland, Australia. Journal of Coastal Research, 30 3: 575-585. doi:10.2112/JCOASTRES-D-12-00234.1


Author Gontz, Allen M.
Moss, Patrick T.
Wagenknecht, Ekatherina K.
Title Stratigraphic architecture of a regressive strand plain, Finders Beach, North Stradbroke Island, Queensland, Australia
Journal name Journal of Coastal Research   Check publisher's open access policy
ISSN 1551-5036
0749-0208
Publication date 2014-05
Year available 2014
Sub-type Article (original research)
DOI 10.2112/JCOASTRES-D-12-00234.1
Open Access Status
Volume 30
Issue 3
Start page 575
End page 585
Total pages 11
Place of publication Coconut Creek, FL United States
Publisher Coastal Education & Research Foundation
Collection year 2015
Language eng
Abstract Regressive beaches are commonly composed of extensive and complex beach ridge systems. The physical and stratigraphic relationships of the beach ridges can help decipher the interactions between sea-level changes, variation in storm periodicity and intensity, changes in current directions, and alterations in sediment sources. Similar systems have been identified on the SE coast of Queensland and the spatial and temporal relationships between the various depositional environments are poorly understood. A small-strand plain system was identified on the NE coast of North Stradbroke Island, Queensland, Australia, and targeted for study with ground-penetrating radar (GPR). A series of GPR transects were acquired to elucidate the subsurface architecture of the system and to establish a geologic and geomorphic framework for the system through the application of stratigraphic analysis and decipher the spatial relationship. The GPR survey was concentrated in the center of the system and acquired approximately 3 km of 250-MHz data. The survey shows the stratigraphic relationship between modern sand dunes, beach ridge sequences, wetlands, and the much older Pleistocene sand dunes and identifies a potential Holocene storm record. We established a stratigraphic link between environments and propose a model driven by sea-level change, which proposes beach-ridge development during the early/mid-Holocene regression.
Keyword Ground penetrating radar
Beach ridges
Holocene highstand
Storm deposits
Dune stratigraphy
Sea level
Pleistocene highstand
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2015 Collection
 
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