Podzol chronosequences on coastal dunes of eastern Australia

Thompson, C. H.

doi:10.1038/291059a0

Cited by 93 publications

(103 citation statements)

References 10 publications

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“…The parabolic systems in the study area have some of the deepest and most highly developed podosols (podzols) in the world, due to the long history of the dunefields, favourable climatic conditions, the high porosity of the sediments and absence of a water table to considerable depths (Thompson, 1981). Profile development or depth of A1 and A2 horizons to the firm, iron-humus rich Bhir horizon can be as much as 30 metres in the oldest dunes (Thompson, 1981).…”

Section: Soil Development and Age Inferencesmentioning

confidence: 99%

“…Profile development or depth of A1 and A2 horizons to the firm, iron-humus rich Bhir horizon can be as much as 30 metres in the oldest dunes (Thompson, 1981). Thompson (1981) presents a chronological sequence of dune systems 1 to 6 in Cooloola according to their degree of erosion and podosol profile development, with no absolute ages inferred to those systems.…”

Section: Soil Development and Age Inferencesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The dunefields were deposited episodically during the Quaternary (Ward, 1978) and contain overlapping phases of parabolic dune systems (Figure 1) (Thompson, 1981) and some transgressive sand waves. The initiation of each individual phase has been the subject of debate, attributed either to sea level lowstands (Ward, 1978) or to successive Quaternary marine transgressions (Thompson, 1981). In fact, the literature debate on whether marine (sea level) factors or climate are the main triggers for dunefield initiation is common to other regions around Australia and elsewhere (Lees, 2006;Young et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

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A Review of Coastal Dunefield Evolution in Southeastern Queensland

Silva

Shulmeister

2016

Journal of Coastal Research

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Miot da Silva, G. and Shulmeister, J., 2016 The Southern Queensland subtropical coastline represents a major depositional system containing 3 of the largest sand islands in the world. The surface of these sand masses comprises foredune ridges and predominantly large transgressive dunefields, deposited episodically during the Quaternary. The chronological sequence of these dunefield phases, however, is still poorly understood. This paper summarizes the information available regarding dunefield transgression events on the southern coast of Queensland and indicates that both marine and climate effects are important controlling factors for dunefield evolution but that an understanding of the relative thresholds of each factor as the main trigger of dune emplacement phases remains a challenge . ADDITIONAL INDEX WORDS:Dune emplacement phases, climate, sea level changes.

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Section: Soil Development and Age Inferencesmentioning

confidence: 99%

Section: Soil Development and Age Inferencesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Review of Coastal Dunefield Evolution in Southeastern Queensland

Silva

Shulmeister

2016

Journal of Coastal Research

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“…Research on the timing of emplacement of the sand islands of the Queensland coast has suggests the islands have grown during times of lower sea levels due to increased sediment availablility from the exposed continental shelf (Ward) or from highstand strandlines (Thompson, 1981). The sediment is mobilized by aeolian processes and dunes on the islands expand.…”

Section: Introductionmentioning

confidence: 99%

Ground Penetrating Radar Observations of Present and Former Coastal Environments, Great Sandy National Park, Queensland, Australia – Focus on Moon Point, Fraser Island

Gontz

McCallum

Moss

et al. 2016

Journal of Coastal Research

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Using calibrated surface roughness dating to estimate coastal dune ages at K'gari (Fraser Island) and the Cooloola Sand Mass, Australia

Patton

Shulmeister

Rittenour

et al. 2022

Earth Surf Processes Landf

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Here we present a novel application of landscape smoothing with time to generate a detailed chronology of a large and complex dune field. K'gari (Fraser Island) and the Cooloola Sand Mass (CSM) dune fields host thousands of emplaced (relict) and active onlapping parabolic dunes that span 800 000 years in age. While the dune fields have a dating framework, their sheer size (~1930 km2) makes high‐resolution dating of the entire system infeasible. Leveraging newly acquired (n = 8) and previously published (n = 20) optically stimulated luminescence (OSL) ages from K'gari and the CSM, we estimate the age of Holocene dunes by building a surface roughness (σC)–age relationship model. In this study, we define σC as the standard deviation of topographic curvature for a dune area and we demonstrate an exponential relationship (r2 = 0.942, RMSE = 0.892 ka) between σC and timing of dune emplacement on the CSM. This relationship is validated using ages from K'gari. We calculate σC utilizing a 5 m digital elevation model and apply our model to predict the ages of 726 individually delineated Holocene dunes. The timing of dune emplacement events is assessed by plotting cumulative probability density functions derived from both measured and predicted dune ages. We demonstrate that both dune fields had four major phases of dune emplacement, peaking at <0.5, ~1.5, ~4, and ~8.5 ka. We observe that our predicted dune ages did not create or remove major events when compared to the OSL‐dated sequence, but instead reinforced these patterns. Our study highlights that σC–age modelling can be an easily applied relative or absolute dating tool for dune fields globally. This systematic approach can fill in chronological gaps using only high‐resolution elevation data (3–20 m resolution) and a limited set of dune ages.

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Podzol chronosequences on coastal dunes of eastern Australia

Cited by 93 publications

References 10 publications

A Review of Coastal Dunefield Evolution in Southeastern Queensland

A Review of Coastal Dunefield Evolution in Southeastern Queensland

Ground Penetrating Radar Observations of Present and Former Coastal Environments, Great Sandy National Park, Queensland, Australia – Focus on Moon Point, Fraser Island

Using calibrated surface roughness dating to estimate coastal dune ages at K'gari (Fraser Island) and the Cooloola Sand Mass, Australia

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