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Full-Text Articles in Social and Behavioral Sciences
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
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 …
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
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 …
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
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.