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Full-Text Articles in Social and Behavioral Sciences

The Geomorphological Evolution Of A Wave-Dominated Barrier Estuary: Burrill Lake, New South Wales, Australia, Brian G. Jones, Craig R. Sloss, David M. Price, C.E. Mcclennen, John De Carli Jun 2013

The Geomorphological Evolution Of A Wave-Dominated Barrier Estuary: Burrill Lake, New South Wales, Australia, Brian G. Jones, Craig R. Sloss, David M. Price, C.E. Mcclennen, John De Carli

B. G. Jones

The geomorphological evolution of the Holocene wave-dominated barrier estuary at Burrill Lake on the New South Wales coast, Australia, has been delineated using a combination of seismic stratigraphy and the lithostratigraphic analysis of vibracores collected from the back-barrier estuarine environment. A combination of radiocarbon and aspartic acid racemisation-derived ages obtained on Holocene fossil molluscs, and the thermoluminescent signal in remnant Last Interglacial barrier sediments provides the chronological framework for this investigation. Results from this paper show that the barrier estuary occupies a relatively narrow (<1.5 km wide) and shallow (<40 m deep) incised bedrock valley formed during sea-level …


Thermoluminescence Ages For A Reworked Coastal Barrier, Southeastern Vietnam: A Preliminary Report, Colin Murray-Wallace, Brian Jones, Tran Nghi, David Price, Vu Vinh, Trinh Tinh, Gerald Nanson Jun 2013

Thermoluminescence Ages For A Reworked Coastal Barrier, Southeastern Vietnam: A Preliminary Report, Colin Murray-Wallace, Brian Jones, Tran Nghi, David Price, Vu Vinh, Trinh Tinh, Gerald Nanson

B. G. Jones

Thermoluminescence dating of quartz sand (90-125 μm) from the coastal barrier successions between Phan Thiet and Tuy Phong, southeastern Vietnam, reveals that a substantial component was deposited during the last interglacial sensu lato (Oxygen Isotope Stage 5) between 108 and 85 ka. The barrier successions have subsequently, in places, experienced multiple phases of aeolian reworking during the last glacial cycle, and in particular between 62 and 19 ka, possibly related to reduced vegetation cover and landscape instability caused by climatic change. The difficulties of applying the thermoluminescence (TL) method in areas of intense tropical weathering are also examined.


Contrasting Sedimentation Rates In Lake Illawarra And St Georges Basin, Two Large Barrier Estuaries On The Southeast Coast Of Australia, Colin Murray-Wallace, Brian Jones, Craig Sloss, H Heijnis, B Brooke Jun 2013

Contrasting Sedimentation Rates In Lake Illawarra And St Georges Basin, Two Large Barrier Estuaries On The Southeast Coast Of Australia, Colin Murray-Wallace, Brian Jones, Craig Sloss, H Heijnis, B Brooke

B. G. Jones

Sedimentation rates over the last 100 years within two lagoons on the southeast coast of Australia, Lake Illawarra and St Georges Basin, have been quantified to determine the effects of catchment land use change and native vegetation clearance on infill rates, and spatial variations in the rate at which the estuaries have filled. Both catchments have similar lake and catchment area but have experience different degrees of modification due to land clearing for agriculture practices, urbanisation and industrialisation. Results indicate that in the heavily modified catchment of Lake Illawarra sedimentation rates close to fluvial deltas can be in excess of …


Investigation Of Large-Scale Washover Of A Small Barrier System On The Southeast Australian Coast Using Ground Penetrating Radar, Brian G. Jones, C Bristow, Adam D. Switzer Jun 2013

Investigation Of Large-Scale Washover Of A Small Barrier System On The Southeast Australian Coast Using Ground Penetrating Radar, Brian G. Jones, C Bristow, Adam D. Switzer

B. G. Jones

Prehistoric depositional signatures for large-scale washover involving marine inundation events such as storm and tsunami have been the subject of considerable research over the last 15 years. Much of this research has focused on the identification of sand sheets in back-barrier environments as depositional records for extreme washover events. All these deposits must have a sediment source, and by their nature, the most likely source of sediment for washover into back-barrier environments is the barrier itself. This study identifies an erosional signature for large-scale washover from a small coastal barrier on the southeast Australian coast. A distinct lense of marine …


Holocene Sea Level Fluctuations And The Sedimentary Evolution Of A Barrier Estuary: Lake Illawarra, New South Wales, Australia, Colin Murray-Wallace, Brian Jones, Craig Sloss, C.E. Mcclennen Jun 2013

Holocene Sea Level Fluctuations And The Sedimentary Evolution Of A Barrier Estuary: Lake Illawarra, New South Wales, Australia, Colin Murray-Wallace, Brian Jones, Craig Sloss, C.E. Mcclennen

B. G. Jones

No abstract provided.


The Chronostratigraphy Of A Holocene Barrier Estuary: Lake Illawarra Nsw, Craig Sloss, Brian Jones, Colin Murray-Wallace, Charles Mcclennan Jun 2013

The Chronostratigraphy Of A Holocene Barrier Estuary: Lake Illawarra Nsw, Craig Sloss, Brian Jones, Colin Murray-Wallace, Charles Mcclennan

B. G. Jones

Valley-fill sequences, preserved in topographic lows associated with incised valley systems, potentially preserve a record of Holocene sea level fluctuations. A detailed litho- and biostratigraphy of the Holocene barrier estuary, Lake Illawarra, New South Wales has been constructed. Forty kilometres of seismic surveys, forty-one vibracores, supplemented by auger drill holes and trenches, and faunal analysis provides the data for this investigation. A detailed chronology of the infilling of the barrier estuary has been established using 115 aspartic acid derived ages and six radiocarbon ages. The results provide a detailed chronology for the deposition of marine transgressive deposits, barrier growth, and …


Aminostratigraphy Of Two Holocene Wave-Dominated Barrier Estuaries In Southeastern Australia, Colin Murray-Wallace, Brian Jones, Craig Sloss Jun 2013

Aminostratigraphy Of Two Holocene Wave-Dominated Barrier Estuaries In Southeastern Australia, Colin Murray-Wallace, Brian Jones, Craig Sloss

B. G. Jones

No abstract provided.