Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 26 of 26

Full-Text Articles in Physical Sciences and Mathematics

A Review And Synthesis Of Glendonites (Pseudomorphs After Ikaite) With New Data: Assessing Applicability As Recorders Of Ancient Coldwater Conditions, Bruce Selleck, Paul Carr, Brian Jones Jun 2013

A Review And Synthesis Of Glendonites (Pseudomorphs After Ikaite) With New Data: Assessing Applicability As Recorders Of Ancient Coldwater Conditions, Bruce Selleck, Paul Carr, Brian Jones

B. G. Jones

No abstract provided.


Gpr Surveys Of Vegetated Linear Dune Stratigraphy In Central Australia: Evidence For Linear Dune Extension With Vertical And Lateral Accretion, Gerald Nanson, Brian Jones, David Price, C Bristow, Cameron Hollands, Maria Coleman Jun 2013

Gpr Surveys Of Vegetated Linear Dune Stratigraphy In Central Australia: Evidence For Linear Dune Extension With Vertical And Lateral Accretion, Gerald Nanson, Brian Jones, David Price, C Bristow, Cameron Hollands, Maria Coleman

B. G. Jones

No abstract provided.


Holocene Sea-Level Change On The Southeast Coast Of Australia: A Review, Colin Murray-Wallace, Brian Jones, Craig Sloss Jun 2013

Holocene Sea-Level Change On The Southeast Coast Of Australia: A Review, Colin Murray-Wallace, Brian Jones, Craig Sloss

B. G. Jones

No abstract provided.


Morphological And Stratigraphic Evolution Of Wandandian Creek Delta, St Georges Basin, New South Wales, Carl Hopley, Brian Jones Jun 2013

Morphological And Stratigraphic Evolution Of Wandandian Creek Delta, St Georges Basin, New South Wales, Carl Hopley, Brian Jones

B. G. Jones

No abstract provided.


Late Quaternary Mega-Lakes Fed By The Northern And Southern River Systems Of Central Australia: Varying Moisture Sources And Increased Continental Aridity, T Cohen, G Nanson, John Jansen, B Jones, Z Jacobs, J Larsen, J.-H May, P Treble, D Price, A Smith Jun 2013

Late Quaternary Mega-Lakes Fed By The Northern And Southern River Systems Of Central Australia: Varying Moisture Sources And Increased Continental Aridity, T Cohen, G Nanson, John Jansen, B Jones, Z Jacobs, J Larsen, J.-H May, P Treble, D Price, A Smith

B. G. Jones

Optically stimulated and thermoluminescence ages from relict shorelines, along with accelerator mass spectrometer 14C ages from freshwater molluscs reveal a record of variable moisture sources supplied by northern and southern river systems to Lake Mega-Frome in southern central Australia during the late Quaternary. Additional lacustrine, palynological and terrestrial proxies are used to reconstruct a record that extends back to 105 ka, confirming that Lakes Mega-Frome and Mega-Eyre were joined to create the largest system of palaeolakes on the Australian continent as recently as 50-47 ka. The palaeohydrological record indicates a progressive shift to more arid conditions, with marked drying after …


Use Of 210pb And 137cs To Simultaneously Constrain Ages And Sources Of Post-Dam Sediments In The Cordeaux Reservoir, Sydney, Australia, Ava Simms, Colin Woodroffe, Brian Jones, H Heijnis, Rob Mann, J. Harrison Jun 2013

Use Of 210pb And 137cs To Simultaneously Constrain Ages And Sources Of Post-Dam Sediments In The Cordeaux Reservoir, Sydney, Australia, Ava Simms, Colin Woodroffe, Brian Jones, H Heijnis, Rob Mann, J. Harrison

B. G. Jones

Environmental radionuclides can be employed as tracers of sediment movement and delivery to water bodies such as lakes and reservoirs. The chronologies of sediments that have accumulated in the Cordeaux reservoir in Sydney, Australia, were determined by the rate of change of 210Pbex with depth and indicate slow accretion in the reservoir. The ratio of enrichment of radionuclides in sediment cores to 210Pbex and 137Cs concentrations in a reference soil sample within the Cordeaux catchment indicates that the dominant source of sediment in the Cordeaux reservoir is surface erosion (detachment and removal of sediment at depths less than 30 cm). …


On The Possible Origins Of An Unusual (Mid To Late Holocene) Coastal Deposit, Old Punt Bay, South-East Australia, Brian Jones, Adam Switzer, S Haslett, Dale Dominey-Howes, D Everett, C Courtney, B Mamo, L Strotz Jun 2013

On The Possible Origins Of An Unusual (Mid To Late Holocene) Coastal Deposit, Old Punt Bay, South-East Australia, Brian Jones, Adam Switzer, S Haslett, Dale Dominey-Howes, D Everett, C Courtney, B Mamo, L Strotz

B. G. Jones

An unusual coarse, shelly sedimentary unit is found elevated above present mean sea level in a sheltered pocket embayment at Old Punt Bay in south-eastern Australia. The coarse sediments, diverse microfauna, and large shelly macrofauna of mixed affinity suggest that the deposit is the result of high-energy deposition. The deposit was previously thought to have been deposited 1000-1300 cal bp based on one shell dated using 14C and amino acid racemisation. However, additional 14C dating indicates a likely age of ~2500 cal bp. Regardless of age constraints, the presence of rock-encrusting oyster shells and large articulated bivalves, suggests that the …


Patterns And Rates Of Sedimentary Infill In The Minnamurra River Estuary, South-Eastern Australia, K Panayotou, Colin Woodroffe, Brian Jones, Bryan Chenhall, Errol Mclean, H Heijnis Jun 2013

Patterns And Rates Of Sedimentary Infill In The Minnamurra River Estuary, South-Eastern Australia, K Panayotou, Colin Woodroffe, Brian Jones, Bryan Chenhall, Errol Mclean, H Heijnis

B. G. Jones

This paper presents a revised process-based model that explores aspects of estuarine geomorphology and the rates and patterns of sedimentary infill based upon the Minnamurra River estuary, a mature barrier estuary in south-eastern Australia. The Minnamurra River is located on the south coast of New South Wales and is characterised by three main facies: a marine flood tide delta/barrier, a central lagoon/estuary and a fluvial delta. The sedimentary record in this system was examined in detail to quantify the rate of estuarine infill. This predominantly infilled mature barrier estuary is now largely dominated by river influence. In the early stages …


Mobility Of Sediment Grain Size Distributions On A Wave Dominated Continental Shelf, Southeastern Australia, Brian Jones, Jonathan Griffin, Mark Hemer Jun 2013

Mobility Of Sediment Grain Size Distributions On A Wave Dominated Continental Shelf, Southeastern Australia, Brian Jones, Jonathan Griffin, Mark Hemer

B. G. Jones

No abstract provided.


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 …


Reconstructing Recent Sedimentation In Two Urbanised Coastal Lagoons (Nsw, Australia) Using Radioisotopes And Geochemistry, Brian Jones, H Heijnis, J. Harrison, Suzanne Hollins, S Hankin, Atun Zawadzki Jun 2013

Reconstructing Recent Sedimentation In Two Urbanised Coastal Lagoons (Nsw, Australia) Using Radioisotopes And Geochemistry, Brian Jones, H Heijnis, J. Harrison, Suzanne Hollins, S Hankin, Atun Zawadzki

B. G. Jones

In this study, we combined grain size and geochemical analyses with radioisotope analysis of lead-210 (210Pb), caesium-137 (137Cs) and radiocarbon (14C) ages to reconstruct the sedimentation history of two urbanised coastal lagoons in south-east Australia. Towradgi and Fairy Lagoons were both found to exhibit slow initial sedimentation of less than 1 mm year-1 prior to anthropogenic influences. Land clearing in the catchments increased runoff and erosion in the creeks feeding into the estuaries, and has resulted in progradation of fluvial material into the estuarine systems with a marked increase in sedimentation to between 2 and 7 mm year-1. The upper …


The Geomorphology Of The Flanks Of The Lord Howe Island Volcano, Tasman Sea, Australia, D. Kennedy, B. Brooke, Colin Woodroffe, Brian Jones, C. Waikari, S. Nichol Jun 2013

The Geomorphology Of The Flanks Of The Lord Howe Island Volcano, Tasman Sea, Australia, D. Kennedy, B. Brooke, Colin Woodroffe, Brian Jones, C. Waikari, S. Nichol

B. G. Jones

No abstract provided.


Assessing The Recent (1834-2002) Morphological Evolution Of A Rapidly Prograding Delta Within A Gis Framework: Macquarie Rivulet Delta, Lake Illawarra, New South Wales, Marjetta Puotinen, Brian Jones, Carl Hopley Jun 2013

Assessing The Recent (1834-2002) Morphological Evolution Of A Rapidly Prograding Delta Within A Gis Framework: Macquarie Rivulet Delta, Lake Illawarra, New South Wales, Marjetta Puotinen, Brian Jones, Carl Hopley

B. G. Jones

No abstract provided.


Geomorphic Evidence For Mid-Late Holocene Higher Sea Level From Southeastern Australia, Adam Switzer, Craig Sloss, Brian Jones, C. Bristow Jun 2013

Geomorphic Evidence For Mid-Late Holocene Higher Sea Level From Southeastern Australia, Adam Switzer, Craig Sloss, Brian Jones, C. Bristow

B. G. Jones

No abstract provided.


The Holocene Infill Of Lake Conjola, A Narrow Incised Valley System On The Southeast Coast Of Australia, Craig Sloss, Brian Jones, Adam Switzer, Scott Nichol, Alastair Clement, William Nicholas Jun 2013

The Holocene Infill Of Lake Conjola, A Narrow Incised Valley System On The Southeast Coast Of Australia, Craig Sloss, Brian Jones, Adam Switzer, Scott Nichol, Alastair Clement, William Nicholas

B. G. Jones

No abstract provided.


Sea Level, Storm, Or Tsunami: Engimatic Sand Sheet Deposits In A Sheltered Coastal Embayment From Southeastern New South Wales, Australia, Edward Bryant, Brian Jones, Kevin Pucillo, Rabea Haredy, Adam Switzer Jun 2013

Sea Level, Storm, Or Tsunami: Engimatic Sand Sheet Deposits In A Sheltered Coastal Embayment From Southeastern New South Wales, Australia, Edward Bryant, Brian Jones, Kevin Pucillo, Rabea Haredy, Adam Switzer

B. G. Jones

No abstract provided.


The Sedimentary Record Of Palaeoenvironments And Sea-Level Change In The Gulf Of Carpentaria, Australia, Through The Last Glacial Cycle, Jessica Reeves, Allan Chivas, Adriana Garcia, Sabine Holt, Martine Couapel, Brian Jones, Dionisio Cendon, David Fink Jun 2013

The Sedimentary Record Of Palaeoenvironments And Sea-Level Change In The Gulf Of Carpentaria, Australia, Through The Last Glacial Cycle, Jessica Reeves, Allan Chivas, Adriana Garcia, Sabine Holt, Martine Couapel, Brian Jones, Dionisio Cendon, David Fink

B. G. Jones

Environmental evolution of the Gulf of Carpentaria region, the world's largest tropical epicontinental seaway, through the last glacial cycle has been determined from a series of six sediment cores. These cores form the focus of a multi-disciplinary study to elucidate sea level, climate and environmental change in the region. The sedimentary record reveals a series of facies including open shallow marine, marginal marine, estuarine, lacustrine and subaerial exposure, throughout the extent of the basin during this period. The partial or complete closure of the central basin from marine waters results from sea level falling below the height of one or …


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.


Holocene Evolution Of The Minnamurra River Estuary, Southeast Australia: Foraminiferal Evidence, S. Haslett, R. Davies-Burrows, K. Panayotou, Brian Jones, Colin Woodroffe Jun 2013

Holocene Evolution Of The Minnamurra River Estuary, Southeast Australia: Foraminiferal Evidence, S. Haslett, R. Davies-Burrows, K. Panayotou, Brian Jones, Colin Woodroffe

B. G. Jones

No abstract provided.


Morphological Changes, Assessed Within A Gis Framework, In The Prograding Macquarie Rivulet Delta, New South Wales, Carl Hopley, Brian Jones, Marjetta Puotinen Jun 2013

Morphological Changes, Assessed Within A Gis Framework, In The Prograding Macquarie Rivulet Delta, New South Wales, Carl Hopley, Brian Jones, Marjetta Puotinen

B. G. Jones

No abstract provided.


Identification Of The Permian-Triassic Boundary In The Southern Sydney Basin, Megan Williams, Paul Carr, Brian Jones Jun 2013

Identification Of The Permian-Triassic Boundary In The Southern Sydney Basin, Megan Williams, Paul Carr, Brian Jones

B. G. Jones

No abstract provided.


Setup, Deposition And Sedimentary Characteristics Of Two Storm Overwash Deposits, Abrahams Bosom Beach, Southeastern Australia, Brian Jones, Adam Switzer Jun 2013

Setup, Deposition And Sedimentary Characteristics Of Two Storm Overwash Deposits, Abrahams Bosom Beach, Southeastern Australia, Brian Jones, Adam Switzer

B. G. Jones

No abstract provided.


Ichnological And Sedimentologic Signatures Of Mixed Wave- And Storm-Dominated Deltaic Deposits: Examples From The Early Permian Sydney Basin, Australia, Brian Jones, Stuart Tye, James Maceachern, Kerrie Bann, Christopher Fielding Jun 2013

Ichnological And Sedimentologic Signatures Of Mixed Wave- And Storm-Dominated Deltaic Deposits: Examples From The Early Permian Sydney Basin, Australia, Brian Jones, Stuart Tye, James Maceachern, Kerrie Bann, Christopher Fielding

B. G. Jones

No abstract provided.


Large-Scale Washover Sedimentation In A Freshwater Lagoon From The Southeast Australian Coast: Sea-Level Change, Tsunami Or Exceptionally Large Storm?, Brian Jones, Adam Switzer Jun 2013

Large-Scale Washover Sedimentation In A Freshwater Lagoon From The Southeast Australian Coast: Sea-Level Change, Tsunami Or Exceptionally Large Storm?, Brian Jones, Adam Switzer

B. G. Jones

No abstract provided.


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.


Freshwater Recharge Into A Shallow Saline Groundwater System, Cooper Creek Floodplain, Queensland, Australia, Dionisio Cendon, Joshua Larsen, Brian Jones, Gerald Nanson, David Rickleman, S. Hankin, J. Pueyo, Jerry Maroulis Jun 2013

Freshwater Recharge Into A Shallow Saline Groundwater System, Cooper Creek Floodplain, Queensland, Australia, Dionisio Cendon, Joshua Larsen, Brian Jones, Gerald Nanson, David Rickleman, S. Hankin, J. Pueyo, Jerry Maroulis

B. G. Jones

No abstract provided.