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Articles 31 - 60 of 91
Full-Text Articles in Physical Sciences and Mathematics
Formaldehyde And Nitrogen Dioxide In Smoke Plumes From Australia's Black Saturday Fires, Emma Young, Clare Paton-Walsh
Formaldehyde And Nitrogen Dioxide In Smoke Plumes From Australia's Black Saturday Fires, Emma Young, Clare Paton-Walsh
Faculty of Science - Papers (Archive)
The ‘Black Saturday’ fires were a series of devastating bushfires that burned across Victoria, Australia, during February 2009. The smoke plume from Saturday the 7th February, the worst day of the fires, separated from subsequent emissions and persisted for several weeks, providing the opportunity to track the changing composition of the smoke plume as it aged. In this study we have used satellite data from the Ozone Monitoring Instrument (OMI) and the Atmospheric InfraRed Sounder (AIRS) to characterise the emissions of formaldehyde and nitrogen dioxide from the fires. Emission ratios with respect to carbon monoxide are determined for formaldehyde (0.017 …
Spatial Variability Of Cadmium, Copper, Manganese, Nickel And Zinc In The Port Curtis Estuary, Queensland, Australia, Brad M. Angel, Leigh T. Hales, Stuart L. Simpson, Simon C. Apte, Anthony A. Chariton, Damon A. Shearer, Dianne F. Jolley
Spatial Variability Of Cadmium, Copper, Manganese, Nickel And Zinc In The Port Curtis Estuary, Queensland, Australia, Brad M. Angel, Leigh T. Hales, Stuart L. Simpson, Simon C. Apte, Anthony A. Chariton, Damon A. Shearer, Dianne F. Jolley
Faculty of Science - Papers (Archive)
Port Curtis is a rapidly growing industrialised and urbanised harbour in Central Queensland, Australia. Water sampling surveys were undertaken in late 2003 and 2004, accompanied by additional sediment sampling to investigate the sources and behaviour of trace metals, and the effects of pH on metal partitioning between dissolved and particulate forms. Sampling and analyses of trace metals in waters and suspended particulates were undertaken along axial transects extending away from possible point-sources within the harbour. Additional sampling was undertaken in selected inlets and major freshwater sources to Port Curtis, including the Fitzroy River. Most dissolved metal concentrations were significantly elevated …
Train-Borne Measurements Of Tropical Methane Enhancements From Ephemeral Wetlands In Australia, Nicholas M. Deutscher, David W. T Griffith, Clare Paton-Walsh, Rittick Borah
Train-Borne Measurements Of Tropical Methane Enhancements From Ephemeral Wetlands In Australia, Nicholas M. Deutscher, David W. T Griffith, Clare Paton-Walsh, Rittick Borah
Faculty of Science - Papers (Archive)
We report greenhouse gas concentrations measured on a train covering a north-south transect through central Australia from north to south coast. During the monsoonal wet season we found significant enhancements in methane that correlate well with changing area of wetland inundation in Australian tropical savanna regions. We used a meteorological and air pollution model to quantify the ephemeral wetland fluxes necessary to cause the observed enhancements and estimate the constant Australian tropical wetland emissions. Annual Australian tropical ephemeral wetland fluxes are estimated at 0.4 +/- 0.2 Tg CH4, with permanent wetlands contributing a similar amount, 0.5 +/- 0.2 Tg CH4.
Mapping Same-Sex Couple Family Households In Australia, Andrew W. Gorman-Murray, Christopher R. Brennan-Horley, Kirsten Mclean, Gordon R. Waitt, Christopher R. Gibson
Mapping Same-Sex Couple Family Households In Australia, Andrew W. Gorman-Murray, Christopher R. Brennan-Horley, Kirsten Mclean, Gordon R. Waitt, Christopher R. Gibson
Faculty of Science - Papers (Archive)
The map (1:1,218,987) accompanying this report is the first to depict the distribution of same-sex couple family households across Australia. The map and the report contribute to emerging scholarship combining critical geographies of sexualities with quantitative techniques and GIS in order to advance the political claims of sexual minorities. The data were collected through the 2006 Census and obtained via consultation with the Australian Bureau of Statistics. These data included the number of same-sex couple family households for all Statistical Divisions across Australia and for Statistical Sub-Divisions within metropolitan capital cities. Geographical concentrations of same-sex couple family households were determined …
Patterns Of Demography For Rocky-Shore, Intertidal Invertebrates Approaching Their Geographical Range Limits: Tests Of The Abundant-Centre Hypothesis In South-Eastern Australia, Eszter Z. Hidas, David J. Ayre, Todd E. Minchinton
Patterns Of Demography For Rocky-Shore, Intertidal Invertebrates Approaching Their Geographical Range Limits: Tests Of The Abundant-Centre Hypothesis In South-Eastern Australia, Eszter Z. Hidas, David J. Ayre, Todd E. Minchinton
Faculty of Science - Papers (Archive)
The abundant-centre hypothesis predicts that species' abundances peak at the centre of their geographical ranges and decline gradually towards their range limits. We tested predictions of this hypothesis for three rocky-shore, intertidal invertebrates with planktonic larvae (the whelk, Morula marginalba, the snail, Afrolittorina pyramidalis, and the barnacle, Tesseropora rosea) by quantifying their patterns of abundance and size, and inferring pulses of recruitment from size-frequency distributions, at multiple spatial scales spanning a 600-km region in south-eastern Australia and encompassing roughly the southern third of their geographical ranges. At the regional scale, abundances for all species were, as predicted, dramatically lower at …
Managing The Ground Parrot In Its Fiery Habitat In South-Eastern Australia, Jack Baker, Robert J. Whelan, Lyn Evans, Stephen Moore, Melinda Norton
Managing The Ground Parrot In Its Fiery Habitat In South-Eastern Australia, Jack Baker, Robert J. Whelan, Lyn Evans, Stephen Moore, Melinda Norton
Faculty of Science - Papers (Archive)
The Ground Parrot (Pezoporus wallicus) is a rare and iconic endemic of heathlands in southern Australia. It is threatened by frequent and widespreadfire. The species has been an integral element in the development of our understanding of the impacts offire regimes in heathlands and is an integral part of conservation management of thesefire-prone ecosystems. This long-term study documents the densities of Ground Parrots in three areas of long-unburnt habitat in southernNewSouth Wales. Using area searches and aural surveys, we estimated densities of Ground Parrots at Barren Grounds Nature Reserve–Budderoo National Park (1983–2009), Beecroft Weapons Range (1997–2008) and Nadgee Nature Reserve …
The Effect Of Fuel Age On The Spread Of Fire In Sclerophyll Forest In The Sydney Region Of Australia., Ross A. Bradstock, Owen F. Price
The Effect Of Fuel Age On The Spread Of Fire In Sclerophyll Forest In The Sydney Region Of Australia., Ross A. Bradstock, Owen F. Price
Faculty of Science - Papers (Archive)
We investigated the effect of fuel age on the truncation of spread of unplanned fires using a set of 1473 patches in the Sydney region of Australia. Twenty-two percent of patches derived from prescribed fire experienced a subsequent unplanned fire within 5 years, compared with 42% of patches derived from unplanned fires. Among those encounters, the subsequent unplanned fire stopped at the leading edge of 18% of prescribed patches and 11% of unplanned patches. In comparison, the subsequent fire stopped somewhere in the patch for 44% of both prescribed and unplanned fires. Overall, there was a 10% chance that a …
Management Of Amphibian Populations In Booderee National Park, South-Eastern Australia, Trent D. Penman, Traecey Brassil
Management Of Amphibian Populations In Booderee National Park, South-Eastern Australia, Trent D. Penman, Traecey Brassil
Faculty of Science - Papers (Archive)
Often land set aside for conservation becomes a multiple use area, which forces land managers to balance biodiversity values against competing needs. Booderee National Park is an important conservation reserve for a range of amphibian species in south-eastern Australia. The Park includes a number of townships, defence facilities, and recreation areas, as well as land for conservation. We examined amphibian communities in the area and related these to broad habitat features and identified potential threats to the long term viability of these populations. Two distinct assemblages occurred within the Park that could be related to broad habitat features of the …
Late Quaternary Aeolian And Fluvial Interactions On The Cooper Creek Fan And The Association Between Linear And Source-Bordering Dunes, Strzelecki Desert, Australia, Timothy J. Cohen, Gerald C. Nanson, Joshua R. Larsen, B. G. Jones, David M. Price, Maria Coleman, Tim Pietsch
Late Quaternary Aeolian And Fluvial Interactions On The Cooper Creek Fan And The Association Between Linear And Source-Bordering Dunes, Strzelecki Desert, Australia, Timothy J. Cohen, Gerald C. Nanson, Joshua R. Larsen, B. G. Jones, David M. Price, Maria Coleman, Tim Pietsch
Faculty of Science - Papers (Archive)
The Innamincka Dome and associated low-gradient fan in the Strzelecki Desert is the product of Cenozoic crustal warping that has aided formation of an extensive array of palaeochannels, source-bordering transverse dunes and superimposed linear dunes. These dunes have impeded the course of Cooper Creek and provided a repository of evidence for Quaternary climate change as well as the interactive processes between transverse and linear dune formation. At Turra, Gidgealpa and sites nearby are extensive fluvial and aeolian sand bodies that date from marine isotope stages (MIS) 8-3 and the Last Glacial Maximum (LGM) and are now surrounded or buried by …
Book Review: "Troubled Waters: Confronting The Water Crisis In Australia's Cities" By Patrick Troy (Ed.), Leah M. Gibbs
Book Review: "Troubled Waters: Confronting The Water Crisis In Australia's Cities" By Patrick Troy (Ed.), Leah M. Gibbs
Faculty of Science - Papers (Archive)
Troubled Waters is a collection of essays edited by Patrick Troy, Emeritus Professor and Visiting Fellow at the Fenner School of Environment and Society, Australian National University. The papers are contributed by a multidisciplinary group of authors, from the fields of economics, history, geography, environmental and social policy and law. As a result, the book does not present a single theoretical or methodological approach and in this regard it is refreshing. The book is published by the ANU E Press; a publisher that makes academic output from the ANU freely available from its website, as well as for purchase through …
Leucothoidae, Kristine N. White, James Darwin Thomas
Leucothoidae, Kristine N. White, James Darwin Thomas
Marine & Environmental Sciences Faculty Articles
Four genera and 17 species of leucothoids, the majority of these belonging to the genus Leucothoe, are herein reported from the Great Barrier Reef. Fifteen species are new to science and only Anamixis bazimut has been previously reported from the Great Barrier Reef.
Predicting Avian Distributions To Evaluate Spatiotemporal Overlap With Locust Control Operations In Eastern Australia, Judit K. Szabo, Pamela J. Davy, Michael Hooper, Lee Astheimer
Predicting Avian Distributions To Evaluate Spatiotemporal Overlap With Locust Control Operations In Eastern Australia, Judit K. Szabo, Pamela J. Davy, Michael Hooper, Lee Astheimer
Faculty of Science - Papers (Archive)
Locusts and grasshoppers cause considerable economic damage to agriculture worldwide. The Australian Plague Locust Commission uses multiple pesticides to control locusts in eastern Australia. Avian exposure to agricultural pesticides is of conservation concern, especially in the case of rare and threatened species. The aim of this study was to evaluate the probability of pesticide exposure of native avian species during operational locust control based on knowledge of species occurrence in areas and times of application. Using presence-absence data provided by the Birds Australia Atlas for 1998 to 2002, we developed a series of generalized linear models to predict avian occurrences …
Using Lidar To Assess The Effect Of Fire And Floods On Upland Peat Bogs, Waterfall Gully, Mount Lofty Ranges, South Australia, Javier Leon Patino, Solomon Buckman, Robert P. Bourman, Rowena Morris, Katherine C. Brownlie
Using Lidar To Assess The Effect Of Fire And Floods On Upland Peat Bogs, Waterfall Gully, Mount Lofty Ranges, South Australia, Javier Leon Patino, Solomon Buckman, Robert P. Bourman, Rowena Morris, Katherine C. Brownlie
Faculty of Science - Papers (Archive)
A flood exceeding the 100 year average recurrence interval in November 2005 led to the failure of an upland peat bog in Waterfall Gully. The area is prone to severe bushfire and flood events and the control dam at the base of First Falls was filled with sediment sourced from Wilson Bog. A resistant quartzite bar at Fourth Falls has formed a natural constriction point against which burnt logs and debris have collected following previous fire events forming a natural dam resulting in sediment/peat accumulation upstream. The failure of the bog was inevitable as the vegetative material in the log-jam …
Queer-Friendly Neighbourhoods: Interrogating Social Cohesion Across Sexual Difference In Two Australia Neighbourhoods, Andrew W. Gorman-Murray, Gordon R. Waitt
Queer-Friendly Neighbourhoods: Interrogating Social Cohesion Across Sexual Difference In Two Australia Neighbourhoods, Andrew W. Gorman-Murray, Gordon R. Waitt
Faculty of Science - Papers (Archive)
No abstract provided.
Planning At The Urban Periphery In Australia: Issues Relating To Private Residential Back And Front Yards, Andrew H. Kelly
Planning At The Urban Periphery In Australia: Issues Relating To Private Residential Back And Front Yards, Andrew H. Kelly
Faculty of Science - Papers (Archive)
This narrative focuses on three planning issues affecting the suburban residential periphery in Sydney, Australia: (i) amenity, (ii) biodiversity conservation and (iii) bushfire potential. All relate to private front and back yards, which provide key elements of the residential landscape. Embedded in the paper is the complexity of the planning system and the subsequent inconsistency between dealing with the three issues. Considerable attention is paid to local government and its changing legislative terrain. In particular, several local statutory planning instruments are investigated to illustrate this. The conclusion calls for further research while stressing more action is warranted within and outside …
Sepioloidea Magna Sp. Nov.: A New Bottletail Squid (Cephalopoda : Sepiadariidae) From Northern Australia, Amanda Reid
Sepioloidea Magna Sp. Nov.: A New Bottletail Squid (Cephalopoda : Sepiadariidae) From Northern Australia, Amanda Reid
Faculty of Science - Papers (Archive)
No abstract provided.
Fruit Availability And Utilisation By Grey-Headed Flying Foxes (Pteropodidae: Pteropus Poliocephalus) In A Human-Modified Environment On The South Coast Of New South Wales, Australia, Kerryn Parry-Jones, Kristine O. French, Emily Schmelitschek
Fruit Availability And Utilisation By Grey-Headed Flying Foxes (Pteropodidae: Pteropus Poliocephalus) In A Human-Modified Environment On The South Coast Of New South Wales, Australia, Kerryn Parry-Jones, Kristine O. French, Emily Schmelitschek
Faculty of Science - Papers (Archive)
Context. Extensive clearing and modi. cation of habitat is likely to change many facets of the environment including climate and regional food resources. Such changes may result in changes in behaviour in highly mobile fauna, such as flying foxes. Aims. The availability of fruit resources was examined to determine whether grey-headed flying foxes ( Pteropus poliocephalus) have feeding preferences related to habitat or dietary items, and whether human usage of the land around the colony site has affected the resources available. Methods. Fruit availability around a colony was monitored from December 2004 to March 2005. Night surveys and faecal analyses …
Prediction Of The Probability Of Large Fires In The Sydney Region Of South-Eastern Australia Using Components Of Fire Weather., R A. Bradstock, J S. Cohn, A M. Gill, M Bedward, C Lucas
Prediction Of The Probability Of Large Fires In The Sydney Region Of South-Eastern Australia Using Components Of Fire Weather., R A. Bradstock, J S. Cohn, A M. Gill, M Bedward, C Lucas
Faculty of Science - Papers (Archive)
The probability of large-fire (>= 1000 ha) ignition days, in the Sydney region, was examined using historical records. Relative influences of the ambient and drought components of the Forest Fire Danger Index (FFDI) on large fire ignition probability were explored using Bayesian logistic regression. The preferred models for two areas (Blue Mountains and Central Coast) were composed of the sum of FFDI (Drought Factor, DF = 1) (ambient component) and DF as predictors. Both drought and ambient weather positively affected the chance of large fire ignitions, with large fires more probable on the Central Coast than in the Blue …
Spatial Ecology Of Hatchling Water Pythons (Liasis Fuscus) In Tropical Australia, Richard Shine, Thomas R. Madsen, Ligia Pizzatto, Gregory P. Brown
Spatial Ecology Of Hatchling Water Pythons (Liasis Fuscus) In Tropical Australia, Richard Shine, Thomas R. Madsen, Ligia Pizzatto, Gregory P. Brown
Faculty of Science - Papers (Archive)
Young snakes are rarely seen in the field and little is known about their habits. mostly because they are too small for radio-telemetry (the primary method for Studying snake spatial ecology). However, the offspring or some larger species can be fitted with transmitters and we investigated the spatial ecology and habitat use of ten hatchling water pythons (Liasis fuscus: Pythonidae) in the floodplain of the Adelaide River, tropical Australia. Patterns of habitat use in the late wet season and during the dry season were similar to those of adults tracked in the same vicinity in an earlier study. Soon after …
Aboriginal Settlement During The Lgm At Brockman, Pilbara Region, Western Australia, Michael Slack, Melanie Fillios, Richard L. Fullagar
Aboriginal Settlement During The Lgm At Brockman, Pilbara Region, Western Australia, Michael Slack, Melanie Fillios, Richard L. Fullagar
Faculty of Science - Papers (Archive)
This paper describes the results and implications of recent excavations on the Hamersley Iron Brockman 4 tenement, near Torn Price, Western Australia. Results concentrate on two rock shelters with Aboriginal occupation starting at least 32,000 years ago and extending throughout the Last Glacial period. Preliminary observations are proposed concerning the nature of Aboriginal foraging patterns as displayed in the flaked stone and faunal records for the Brockman region.
Late Neoproterozoic Passive Margin Of East Gondwana: Geochemical Constraints From The Anakie Inlier, Central Queensland, Australia, Christopher L. Fergusson, R Offler, T Green
Late Neoproterozoic Passive Margin Of East Gondwana: Geochemical Constraints From The Anakie Inlier, Central Queensland, Australia, Christopher L. Fergusson, R Offler, T Green
Faculty of Science - Papers (Archive)
Development of the East Gondwana passive margin and when it occurred are constrained by the composition of low grade mafic schists and U-Pb ages of detrital zircons in psammitic schists from the Bathampton Metamorphics in the Anakie Inlier of central Queensland. These rocks show considerable variation in light lithophile elements due to post-magmatic processes. They have flat heavy rare earth element patterns, low-TiO2 (<2 wt%) contents and their immobile element Ti, V, Y, La, Nb, Th and Zr values, indicate that they have an NMORB- like magmatic affinity. However, they differ from N-MORB in that they show light rare earth depleted patterns and lower incompatible trace element contents. Their relative low abundance and association with metasediments suggest they formed in a magma-poor rifted margin setting. They are associated with psammitic rocks with detrital zircon ages indicating probable deposition in the late Neoproterozoic at ca 600 Ma. A magma-poor rifted margin in northeastern Australia differs from the volcanic passive setting that occurred in southeastern Australia at this time. These findings support development of the East Gondwana margin at 600 Ma that may have been related to rifting of a microcontinent off East Gondwana well after the breakup of Rodinia at ca 750 Ma.
Molecular And Morphological Description Of A Hepatozoon Species In Reptiles And Their Ticks In The Northern Territory, Australia, Inger-Marie E. Vilcins, Beata Ujvari, Julie M. Old, Elizabeth Deane
Molecular And Morphological Description Of A Hepatozoon Species In Reptiles And Their Ticks In The Northern Territory, Australia, Inger-Marie E. Vilcins, Beata Ujvari, Julie M. Old, Elizabeth Deane
Faculty of Science - Papers (Archive)
Ticks, representing 3 species of Amblyomma, were collected from the water python (Liasis fuscus) and 3 additional reptile species in the Northern Territory, Australia, and tested for the presence of Hepatozoon sp., the most common blood parasites of snakes. In addition, blood smears were collected from 5 reptiles, including the water python, and examined for the presence of the parasite. Hepatozoon sp. DNA was detected in all tick and reptile species, with 57.7% of tick samples (n = 187) and 35.6% of blood smears (n = 35) showing evidence of infection. Phylogenetic analysis of the 18S rRNA gene demonstrated that …
Climate Change In The Dead Heart Of Australia, Joshua Larsen, Gerald C. Nanson, Timothy J. Cohen, Brian G. Jones, John D. Jansen, Jan-Hendrik May
Climate Change In The Dead Heart Of Australia, Joshua Larsen, Gerald C. Nanson, Timothy J. Cohen, Brian G. Jones, John D. Jansen, Jan-Hendrik May
Faculty of Science - Papers (Archive)
Despite the absence of large-scale glaciation, the Australian continent has experienced substantial environmental change throughout the Quaternary period. This is especially pronounced in central Australia, where one seventh of the continent is drained internally to the depocentre, and lowest point in Australia, Lake Eyre (Figure 1). Research has shown that at one time, large sandy braided and meandering rivers carried water through dunefields to a large freshwater lake system. Today, the rivers are hostage to the dunefield, and floodwaters might only reach Lake Eyre once every ten years or so. In order to understand the development of this arid desert …
Reconstructing Annual Inflows To The Headwater Catchments Of The Murray River, Australia, Using The Pacific Decadal Oscillation, Hamish A. Mcgowan, Samuel K. Marx, John Denholm, Joshua Soderholm, Balz S. Kamber
Reconstructing Annual Inflows To The Headwater Catchments Of The Murray River, Australia, Using The Pacific Decadal Oscillation, Hamish A. Mcgowan, Samuel K. Marx, John Denholm, Joshua Soderholm, Balz S. Kamber
Faculty of Science - Papers (Archive)
The Pacific Decadal Oscillation (PDO) is a major forcing of inter-decadal to quasi-centennial variability of the hydroclimatology of the Pacific Basin. Its effects are most pronounced in the extra-tropical regions, while it modulates the El Nino Southern Oscillation (ENSO), the largest forcing of global inter-annual climate variability. PalaeoPDO indices are now available for at least the past 500 years. Here we show that the >500 year PDO index of Shen et al. (2006) is highly correlated with inflows to the headwaters of Australia's longest river system, the Murray-Darling. We then use the PDO to reconstruct annual inflows to the Murray …
Nearshore Wave Environments Around A Sandy Cay On A Platform Reef, Torres Strait, Australia, Colin D. Woodroffe, Bongkoch Samosorn
Nearshore Wave Environments Around A Sandy Cay On A Platform Reef, Torres Strait, Australia, Colin D. Woodroffe, Bongkoch Samosorn
Faculty of Science - Papers (Archive)
Waves are the primary factor affecting reef-island morphology. This study examines spatial and temporal variations of wave characteristics in the nearshore around Warraber Island, a sandy cay on a platform reef in Torres Strait Australia, based on field measurements during the predominant southeasterly wind season. Water pressure was recorded simultaneously, and transformed to water surface wave spectra, at a location close to the reef edge and across the nearshore at different locations around the island. Wave environments off the reef were estimated based on wave characteristics measured at the reef-edge location and found to be primarily dominated by sea. Low …
Applying Seed Germination Studies In Fire Management For Biodiversity Conservation In South-Eastern Australia., Tony D. Auld, Mark K.J Ooi
Applying Seed Germination Studies In Fire Management For Biodiversity Conservation In South-Eastern Australia., Tony D. Auld, Mark K.J Ooi
Faculty of Science - Papers (Archive)
We examine the patterns of germination response to fire in the fire-prone flora of the Sydney basin, south-eastern Australia, using examples from several decades of research. The flora shows a strong response to fire-related germination cues. Most species show an interaction between heat and smoke, a number respond only to heat, whilst a few are likely to respond only to smoke. Many recruit in the first 12 months after fire and show no obvious seasonal patterns of recruitment, whilst several species have a strong seasonal germination requirement, even in this essentially aseasonal rainfall region. Key challenges remaining include designing future …
So, Where Is Queer? A Critical Geography Of Queer Exhibitions In Australia, Andrew W. Gorman-Murray
So, Where Is Queer? A Critical Geography Of Queer Exhibitions In Australia, Andrew W. Gorman-Murray
Faculty of Science - Papers (Archive)
This paper interrogates the geography of queer exhibitions in museums and galleries in Australia. The analysis draws on data from Museums Australia's database of queer exhibitions (1982-2005), which are cross-tabulated with geographical variables such as location, scale and state/territory population. The findings show an uneven geographical distribution of exhibitions, how geography also frames the themes of queer exhibitions, and an imbalanced geography, in which regional histories are few, national and state scale histories are prevalent, and minimal exhibitions occur outside metropolitan areas. This is problematic because queer identities, communities and histories vary across scales and between places. Appreciation of geography …
Sedimentology Of Acid Saline Lakes In Southern Western Australia: Newly Described Processes And Products Of An Extreme Environment, Kathleen Counter Benison, Brenda Beitler Bowen, Francisca Oboh-Ikuenobe, Elliot A. Jagniecki, Deidre A. Laclair, Stacy L. Story, Melanie R. Mormile, Boyoung Hong
Sedimentology Of Acid Saline Lakes In Southern Western Australia: Newly Described Processes And Products Of An Extreme Environment, Kathleen Counter Benison, Brenda Beitler Bowen, Francisca Oboh-Ikuenobe, Elliot A. Jagniecki, Deidre A. Laclair, Stacy L. Story, Melanie R. Mormile, Boyoung Hong
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Naturally acid saline systems with pH values between 1.7 and 4 are common on the Yilgarn Craton of southern Western Australia. a combination of physical and chemical processes here yield a previously undescribed type of modern sedimentary environment. Flooding, evapoconcentration, desiccation, and eolian transport at the surface, as well as influx of acid saline groundwaters, strongly influence these lakes. Halite, gypsum, kaolinite, and iron oxides precipitate from acid hypersaline lake waters. Shallow acid saline groundwaters affect the sediments of the lakes and associated mudflats, sandflats, channels, and dunes by precipitating early diagenetic halite, gypsum, iron oxides, clays, jarosite, and alunite. …
Cosmogenic Mega-Tsunami In The Australia Region: Are They Supported By Aboriginal And Maori Legends?, Edward A. Bryant, G. Walsh, D. Abbott
Cosmogenic Mega-Tsunami In The Australia Region: Are They Supported By Aboriginal And Maori Legends?, Edward A. Bryant, G. Walsh, D. Abbott
Faculty of Science - Papers (Archive)
Mega-tsunami have affected much of the coastline of Australia over the past millennium. Such catastrophic waves have left an imprint consisting predominently of bedrock sculpturing of the rocky coastline and deposition of marine sediments to elevations reaching 130 mabove sea level. One of the largest of these events occurred in eastern Australia in the fifteenth century. This event may be related to the Mahuika impact crater found at 48.38 S, 166.48 E on the continental shelf 250 km south of New Zealand. A comet at least 500 m in diameter formed the crater. Maori and Aboriginal legends allude to significant …
Spatial And Temporal Patterns Of Abundance And Recruitment Of Ghost Shrimp Trypaea Australiensis Across Hierarchical Scales In South-Eastern Australia, Douglas Rotherham, R. J. West
Spatial And Temporal Patterns Of Abundance And Recruitment Of Ghost Shrimp Trypaea Australiensis Across Hierarchical Scales In South-Eastern Australia, Douglas Rotherham, R. J. West
Faculty of Science - Papers (Archive)
Spatial and temporal variation in abundance and recruitment of burrowing ghost shrimp Trypaea australiensis was examined across 3 south-eastern Australian estuaries using a hierarchical sampling design, over a 2 yr period. We tested the hypothesis that abundances of shrimp were different between plots (10s to 100s of metres apart), sites within estuaries (kilometres apart), estuaries (100s of kilometres apart) and through time. More frequent sampling at 1 site also examined temporal variation at scales of months, seasons and years. Another aim was to investigate the reliability of using counts of burrow openings to indirectly measure the relative abundance of T, …