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Selected Works

2014

GeoQuest

Articles 1 - 9 of 9

Full-Text Articles in Medicine and Health Sciences

Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers Aug 2014

Bioregional Assessment Project: Sydney Metropolitan, Southern Rivers And Hawkesbury-Nepean Catchments: Data Collation Phase To Study The Impact Of Mining Activity And Coal Seam Gas On Environmental Assets, John Bradd, Tim Cohen, Sam Marx, Sol Buckman, Emma Burkhardt, A Clarke, Nicole Cook, Stephen Cullen, James Daley, Alexi Gavin, Ren Hu, Emma Kiekebosch-Fitt, Matt Lemcke, Andrew Lowe, Thomas Mcmahon, Luke Mcneilage, Kaitlyn O'Mara, Garth Nagle, Sam Robson, Carolyn Silveri, Joe Stammers

Samuel K Marx

This study was commissioned by the Hawkesbury-Nepean (HNCMA), Sydney Metropolitan (SMCMA) and Southern Rivers (SRCMA) Catchment Management Authorities and undertaken by the University of Wollongong to collate existing data and to provide a preliminary assessment of the potential impacts of coal seam gas (CSG) and coal mining activities on environmental assets within the three CMA regions, where environmental assets were defined under three broad themes; water, land and biodiversity. This study formed part of the Australian Federal Government’s Department of Sustainability, Environment, Water, Population and Communities (SEWPaC) Bioregional Assessment initiative within regions potentially affected by CSG and coal mining activities. …


The Significance Of Carbon-Enriched Dust For Global Carbon Accounting, Nicholas P. Webb, Adrian Chappell, Craig L. Strong, Samuel K. Marx, Granth Mctainsh Aug 2014

The Significance Of Carbon-Enriched Dust For Global Carbon Accounting, Nicholas P. Webb, Adrian Chappell, Craig L. Strong, Samuel K. Marx, Granth Mctainsh

Samuel K Marx

Soil carbon stores amount to 54% of the terrestrial carbon pool and twice the atmospheric carbon pool, but soil organic carbon (SOC) can be transient. There is an ongoing debate about whether soils are a net source or sink of carbon, and understanding the role of aeolian processes in SOC erosion, transport and deposition is rudimentary. The impacts of SOC erosion by wind on the global carbon budget, and its importance for carbon accounting remain largely unknown. Current understanding of SOC losses to wind erosion is based on the assumption that the SOC content of eroded material is the same …


A Methodology For The Rapid Assessment Of The Potential Impact And Hazard Of Coal Seam Gas Mining On Aquifers And The Environment, John M. Bradd, Emma Kiekebosch-Fitt, Tim J. Cohen, Sam K. Marx, Solomon Buckman Aug 2014

A Methodology For The Rapid Assessment Of The Potential Impact And Hazard Of Coal Seam Gas Mining On Aquifers And The Environment, John M. Bradd, Emma Kiekebosch-Fitt, Tim J. Cohen, Sam K. Marx, Solomon Buckman

Samuel K Marx

The potential environmental impacts and hazards of coal seam gas mining in Australia are highly contentious and poorly understood. Concerns have been raised by communities, and the Australian government has incorporated management tools and strategies to address these concerns. The primary environmental issue associated with coal seam gas mining would be on the aquifers above the target coal seam. If the upper aquifers are affected in terms of quantity and quality, then there are cumulative impacts to the surface environment such as groundwater dependent ecosystems and surface waters. This paper will examine the Australian situation with regard to coal seam …


Unprecedented Wind Erosion And Perturbation Of Surface Geochemistry Marks The Anthropocene In Australia, Samuel Marx, Hamish Mcgowan, Balz Kamber, Jon M. Knight, John Denholm, Atun Zawadzki Aug 2014

Unprecedented Wind Erosion And Perturbation Of Surface Geochemistry Marks The Anthropocene In Australia, Samuel Marx, Hamish Mcgowan, Balz Kamber, Jon M. Knight, John Denholm, Atun Zawadzki

Samuel K Marx

[1] Australia, the last continent to undergo industrial development, is an ideal environment in which to quantify the magnitude of human-induced environmental change during the Anthropocene because its entire agricultural and industrial history has occurred within this period. Analysis of an alpine peat mire showed that rapid industrial and agricultural development (both pastoral and cropping) over the past 200 years has resulted in significant environmental change in Australia. Beginning in the 1880s, rates of wind erosion and metal enrichment were up to 10 and 30 times that of background natural conditions, respectively. Increased dust deposition and an expansion in dust …


Trace Elements And Metal Pollution In Aerosols At An Alpine Site, New Zealand: Sources, Concentrations And Implications, Samuel K. Marx, Karen S. Lavin, Kimberly J. Hageman, Balz S. Kamber, Tadhg O'Loingsigh, Grant H. Mctainsh Aug 2014

Trace Elements And Metal Pollution In Aerosols At An Alpine Site, New Zealand: Sources, Concentrations And Implications, Samuel K. Marx, Karen S. Lavin, Kimberly J. Hageman, Balz S. Kamber, Tadhg O'Loingsigh, Grant H. Mctainsh

Samuel K Marx

Atmospheric aerosol samples were collected at a remote site in New Zealand's Southern Alps. Collected samples were found to be a mixture of New Zealand and Australian sourced sediment, using their trace element signatures. Aerosol concentrations and the relative contribution of different sources was found to be a function of specific air-mass trajectories influencing the study site, dust entrainment rates in source areas and rainfall. Results show that Australian dust is a major source of particulate matter in New Zealand, particularly in remote alpine locations; however, locally derived dust is also important. Metal pollutants, including Pb, Cu and Sn, were …


First Occurrence And Biogeographical Significance Of The Operculate Tetracoral Goniophyllum From The Wenlock (Silurian) Of Baillie-Hamilton Island, Canadian Arctic, Anthony J. Wright Apr 2014

First Occurrence And Biogeographical Significance Of The Operculate Tetracoral Goniophyllum From The Wenlock (Silurian) Of Baillie-Hamilton Island, Canadian Arctic, Anthony J. Wright

Anthony Wright

Opercula of the Silurian tetracoral genera Goniophyllum and Rhizophyllum are described from early Wenlock (Sheinwoodian) strata of the Cape Phillips Formation, Baillie-Hamilton Island, Canadian Arctic. This is the first record of Goniophyllum in northern Laurentia, emphasising previously recognised faunal connections of this region with Baltica and Avalonia. As the opercula of Goniophyllum belong mostly to very early juveniles, which have not previously been documented, specific identification is impossible.


Using Formative Feedback To Identify And Support First Year Chemistry Students With Missing Or Misconceptions. A Practice Report, Gwen Lawrie, Anthony Wright, Madeleine Schultz, Timothy Dargaville, Glennys O'Brien, Simon B. Bedford, Mark Williams, Roy Tasker, Hayden Dickson, Christopher Thompson Apr 2014

Using Formative Feedback To Identify And Support First Year Chemistry Students With Missing Or Misconceptions. A Practice Report, Gwen Lawrie, Anthony Wright, Madeleine Schultz, Timothy Dargaville, Glennys O'Brien, Simon B. Bedford, Mark Williams, Roy Tasker, Hayden Dickson, Christopher Thompson

Anthony Wright

Students entering tertiary studies possess a diverse range of prior experiences in their academic preparation for tertiary chemistry so academics need tools to enable them to respond to issues in diversity in conceptual models possessed by entering students. Concept inventories can be used to provide formative feedback to help students identify concepts that they need to address to improve construction of subsequent understanding enabling their learning. Modular, formative learning activities that can be administered inside or outside of class in first year chemistry courses have been developed. These activities address key missing and mis-conceptions possessed by incoming student. Engagement in …


Morphology And Taxonomy Of The Late Silurian Rhynchonellide Brachiopod Notoconchidium, Anthony J. Wright, Michael J. Garratt Apr 2014

Morphology And Taxonomy Of The Late Silurian Rhynchonellide Brachiopod Notoconchidium, Anthony J. Wright, Michael J. Garratt

Anthony Wright

The distinctive brachiopod genus Notoconchidium is known from late Silurian, mostly sandy, shallow marine strata in Tasmania, Victoria and New Zealand. Material from the Zeehan and Wynyard areas (Tasmania), the Whittlesea-Wallan and Heathcote areas (Victoria), and the Wangapeka River area (New Zealand), permits further insight into detailed aspects of morphology and relationships between the previously named species N. tasmaniense, N. florencense and N. thomasi. We conclude that N. thomasi is a junior synonym of N. tasmaniense, but N. florencense is retained as a separate species. New species described are N. talenti and N. argentium. The diamond-shaped septalium of Notoconchidium exhibits, …


Notes On The Early Devonian Brachiopod Leptaena Ouralensis De Verneuil, 1845, Anthony J. Wright Apr 2014

Notes On The Early Devonian Brachiopod Leptaena Ouralensis De Verneuil, 1845, Anthony J. Wright

Anthony Wright

On the basis of the type material, an attempt is made to review the widely reported brachiopod Leptaena ouralensis de Verneuil, 1845, much more commonly known as Megastrophia uralensis (de Verneuil, 1845). Assignment of this species to Megastrophia is still tentative, and many reports of the species, especially those based on crack-out material, must remain doubtful. The species has an established narrow geographic and stratigraphic range to the upper Emsian (upper Lower Devonian) of mostly Siberia, Mongolia and China.