Rates of Shoreline Progradation during the Last 1700 Years at Beachmere, Southeastern Queensland, Australia, Based on Optically Stimulated Luminescence Dating of Beach Ridges

Brooke, Brendan; Lee, Roland; Cox, Malcolm; Olley, Jon; Pietsch, Tim

doi:10.2112/04-0375.1

Cited by 38 publications

(30 citation statements)

References 22 publications

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“…OSL has also been used successfully to date relict foredune ridge plains in Australia since the early 2000's (Brooke et al, 2008a(Brooke et al, , 2008bForsyth et al, 2010;Forsyth et al, 2012;Goodwin et al, 2006;Murray-Wallace et al, 2002;Nott et al, 2009). These studies have focused on northern NSW and Queensland, with the exception of Guichen Bay in South Australia.…”

Section: Luminescence Dating Of Coastal Faciesmentioning

confidence: 99%

“…Broader scale patterns of Holocene infill and rates of shoreline progradation have also been examined (Brooke et al, 2008a;Goodwin et al, 2006). Radiocarbon dating is particularly suited to calcareous ridge plains, such as Guichen Bay, where biogenic carbonate material is being actively produced in the nearshore environment and reworked into the beach face facies (hence reasonable agreement of OSL and radiocarbon ages in the seaward portion of the barrier), but is not ideal for carbonate-poor sites such as Moruya, where deeper cores were required to recover shell fragments from the nearshore facies.…”

Section: Luminescence Dating Of Coastal Faciesmentioning

confidence: 99%

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Towards more robust chronologies of coastal progradation: Optically stimulated luminescence ages for the coastal plain at Moruya, south-eastern Australia

et al. 2014

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2015). Towards more robust chronologies of coastal progradation: optically stimulated luminescence ages for the coastal plain at Moruya, south-eastern Australia. The Holocene: a major interdisciplinary journal focusing on recent environmental change, 25 (3), 536-546.Towards more robust chronologies of coastal progradation: optically stimulated luminescence ages for the coastal plain at Moruya, southeastern Australia AbstractAccurate chronologies are fundamental for detailed analysis of palaeoenvironmental conditions, archaeological reconstructions and investigations of Holocene coastal morphological changes. Chronological data enable estimation of rates of shoreline progradation, and provide appropriate context for forecasting future coastal changes. A previously reported radiocarbon chronology for the Moruya coastal plain in southeastern Australia indicated a decelerating overall rate of progradation with minimal net seaward shoreline movement in the past ~2500 years. Single-grain and multi-grain aliquot optically stimulated luminescence (OSL) analyses demonstrate that marine sands from this region have excellent luminescence characteristics. A series of OSL ages across this coastal barrier indicates a remarkably linear trend of Holocene shoreline progradation. The linear trend of seaward shoreline movement indicates that the barrier has grown at an average rate of 0.27 m/yr with successive ridge formation every ~110 years. The oldest ridge on the barrier appears to correspond to cessation of rapid post-glacial sea-level rise, and the large foredune at the seaward margin of the barrier is chronologies, in Australia and around the world, where they have been based on radiocarbon dating of shell hash.

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Section: Luminescence Dating Of Coastal Faciesmentioning

confidence: 99%

Section: Luminescence Dating Of Coastal Faciesmentioning

confidence: 99%

Towards more robust chronologies of coastal progradation: Optically stimulated luminescence ages for the coastal plain at Moruya, south-eastern Australia

et al. 2014

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“…Combined 14 C and OLS dating provided a robust and consistent chronological framework for these phases, which substantially improved the existing chronology based on radiocarbon-dated shell material (Aguayo et al, 1999 Figure 12. Periodicities of beach-ridge formation for the Usumacinta-Grijalva (Us-Gr) system compared with reported or estimated values for other large beach-ridge systems: Rockingham Bay (Forsyth et al, 2010), Beachmere (Brooke et al, 2008b), Moruya (Oliver et al, 2015), Guichen Bay (Murray Wallace et al, 2002;Bristow and Pucillo, 2006), Keppel Bay (Brooke et al, 2008a), Shark Bay (Nott, 2011), Cowley Beach (Nott et al, 2009), Lake Michigan (Thompson, 1992), St. Vincent Island (Lopez and Rink, 2008;Rink and Lopez, 2010), Jerup (Nielsen et al, 2006), Nayarit (Curray et al, 1969), and Rio Grande do Sul (Milana et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

The Usumacinta–Grijalva beach-ridge plain in southern Mexico: a high-resolution archive of river discharge and precipitation

et al. 2017

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Abstract. The beach-ridge sequence of the Usumacinta-Grijalva delta borders a 300 km long section of the southern Gulf of Mexico coast. With around 500 beach ridges formed in the last 6500 years, the sequence is unsurpassed in the world in terms of numbers of individual ridges preserved, continuity of the record, and temporal resolution. We mapped and dated the most extensively accreted part of the sequence, linking six phases of accretion to river mouth reconfigurations and constraining their ages with 14 C and OSL dating. The geomorphological and sedimentological reconstruction relied on lidar data, coring transects, GPR measurements, grain-size analyses, and chemical fingerprinting of volcanic glass and pumice encountered within the beach and dune deposits.We demonstrate that the beach-ridge complex was formed under ample long-term fluvial sediment supply and shorter-term wave-and aeolian-modulated sediment reworking. The abundance of fluvially supplied sand is explained by the presence of easily weatherable Los Chocoyos ignimbrites from the ca. 84 ka eruption of the Atitlán volcano (Guatemala) in the catchment of the Usumacinta River. Autocyclic processes seem responsible for the formation of ridge-swale couplets. Fluctuations in their periodicity (ranging from 6-19 years) are governed by progradation rate, and are therefore not indicative of sea level fluctuations or variability in storm activity. The fine sandy beach ridges are mainly swash built. Ridge elevation, however, is strongly influenced by aeolian accretion during the time the ridge is located next to the beach. Beach-ridge elevation is negatively correlated with progradation rate, which we relate to the variability in sediment supply to the coastal zone, reflecting decadal-scale precipitation changes within the river catchment. In the southern Mexican delta plain, the coastal beach ridges therefore appear to be excellent recorders of hinterland precipitation.

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“…These ages reveal that relative sea level at Beachmere was approximately 1 m higher than present 1,700 ± 140 years BP. Shortly after (1,140 years BP) and up until approximately 140 years ago, there was a linear rate of shoreline progradation of 0.40 m per year, an apparent increase from around 0.16 m per year for the period 1700-1140 years BP (Brooke et al 2008). …”

Section: Surface Water and Drainage Systemsmentioning

confidence: 99%

Hydrochemical and isotopic characterisation of groundwaters to define aquifer type and connectivity in a subtropical coastal setting, Fraser Coast, Queensland

Larsen

Cox

2011

Environ Earth Sci

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Physico-chemical parameters, major ion chemistry and isotope composition of surface and groundwaters were determined in forested coastal catchments and adjacent coastal plains. Results showed obvious characterisation related to physical and hydrological setting, and highly variable spatial differences reflecting the complexities of these areas. All these coastal waters are dominated by Na-Cl and fall on a common dilution line; hydrochemical grouping is largely due to anionic differences (Cl, SO 4 and HCO 3 ), although Na and Mg ratios also vary. Six major hydrochemical facies were determined. For groundwaters, compositional differences are largely related to aquifer material and level of confinement; for coastal groundwaters important are tidal effects and proximity to the shoreline. Differentiation for surface waters is mainly by drainage morphology, flow regime plus proximity to the coast. Connectivity between water bodies is reflected by minor base flow to catchment streams, including with flood plain wetlands, but mostly occurs in low-lying zones where there is mixing of fresh and saline water within surface water and subterranean estuaries, or by seawater intrusion enhanced by overuse. Oxygen and hydrogen isotopic data for confined and semi-confined groundwaters along the coast indicates local recharge; fresh surface waters in the elevated catchments are shown to be sourced further inland plus have experienced evaporation.

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Rates of Shoreline Progradation during the Last 1700 Years at Beachmere, Southeastern Queensland, Australia, Based on Optically Stimulated Luminescence Dating of Beach Ridges

Cited by 38 publications

References 22 publications

Towards more robust chronologies of coastal progradation: Optically stimulated luminescence ages for the coastal plain at Moruya, south-eastern Australia

Towards more robust chronologies of coastal progradation: Optically stimulated luminescence ages for the coastal plain at Moruya, south-eastern Australia

The Usumacinta–Grijalva beach-ridge plain in southern Mexico: a high-resolution archive of river discharge and precipitation

Hydrochemical and isotopic characterisation of groundwaters to define aquifer type and connectivity in a subtropical coastal setting, Fraser Coast, Queensland

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