19TH INT GEOPHYSICAL CONFERENCE

LEME Program 1 Leader, Ms Lisa Worrall received an award from the Australian Society of Exploration Geophysicists for the best environmental/geotechnical presentation

- at the 19th International Geophysical Conference and Exhibition: Exploration and Beyond. 18–22 November 07, Perth. 

The presentation was an hour long invited keynote address entitled Regolith Geophysics: Retrospect and Prospect.  The short abstract for the presentation is shown below.

The Conference Handbook presented by the Australian Society of Exploration Geophysicists - PREVIEW, Issue 131, December 2007 is available from : http://www.publish.csiro.au/?nid=228

LEME was well represented at this event, other LEME presentations included:

• David Baker. Electromagnetic soundings of the regolith at Kalkaroo Mineral Prospect, Curnamona Province , South Australia
• Kirsty Beckett. Mapping porosity and density changes in soil and regolith from 256-Channel Radiometric data
• Kevin Cahill. Refined biophysical products appropriate for groundwater management - taking AEM data to the next step (paper not available)
• Richard Cresswell. Joining the dots: how airborne geophysics helps constrain hydrogeological models
• Andrew Fitzpatrick. Application of airborne geophysical data as a means of better understanding the efficacy of disposal basins along the Murray River
• Andrew Fitzpatrick. Determining appropriate AEM systems for groundwater exploration - a case study from the Eyre Peninsula, South Australia (paper not available)
• Michael Hatch. An assessment of 'in stream' survey techniques along the Murray River, Australia
• John Joseph. Shallow geophysical and hydrogeological studies to characterise palaeochannel properties: a case study from Tanami Desert, NT
• John Joseph. Airborne measurements of natural source EM induction responses to study shallow subsurface features: results from 3D numerical calculations
• Alan Mauger. Mapping regional alteration patterns using hyperspectral drillcore scanner
• Tim Munday. Frequency and/or time domain HEM systems for defining floodplain processes linked to the salinisation along the Murray River
• Gregory Street. Towards development of a risk management tool for roads affected by dryland salinity
• Gregory Street. Study of groundwater flow in sediments and regolith defined by airborne geophysical surveys
• Paul Wilkes. Geoscience, water and salinity in Rural Towns of Western Australia
• Lisa Worrall. Regolith Geophysics: Retrospect and Prospect

  Kirsty Beckett, CUT/LEME sponsored PhD student, now with RioTinto, won the ASEG Best Poster Award

• Inferring soil chemical and physical mobility using 256-Channel NAI radiometric data
  

Regolith geophysics: retrospect and prospect

Lisa Worrall - CRC LEME / Geoscience Australia. lisa.worrall@ga.gov.au

Australia leads the world in developing an understanding of the nature of regolith and regolith forming processes. This understanding is fundamental to the effective exploration of regolith dominated terrains and the effective management of our environment.

Geophysical techniques have an important role to play in characterizing regolith materials, mapping their distribution, and mapping and monitoring regolith forming processes. The efficacy of these techniques, including processing and interpretation strategies, has improved dramatically in the last decade. New, large data acquisition programs funded by the federal government and focused on the regolith should act as an impetus for further improvements in these techniques.

This presentation reviews advances in regolith geophysics over the past decade and considers the challenges and opportunities that will face regolith geophysicists in the coming decade.

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