ORCID Profile
0000-0002-4436-6165
Current Organisations
CSIRO
,
Portable PPB Pty Ltd
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Publisher: Elsevier BV
Date: 12-2006
Publisher: Springer Science and Business Media LLC
Date: 22-10-2013
DOI: 10.1038/NCOMMS3614
Publisher: Elsevier BV
Date: 1983
Publisher: Elsevier BV
Date: 03-2009
Publisher: IEEE
Date: 11-2010
Publisher: Society of Exploration Geophysicists
Date: 09-2011
Abstract: An unexpected result of ground-penetrating radar (GPR) surveys in the Great Victoria Desert (South Australia) was the lack of returning signal in what appeared to be a favorable environment for GPR, with dry silica sand and calcrete aggregates in the near surface. We found that the dielectric response of the dry sand s les had much higher dielectric losses than comparable sands from Western Australia and that the dielectric losses are controlled by the presence of iron oxide minerals, although iron concentrations themselves are only around 0.4%. The s les contained over 90% quartz, with subsidiary amounts of carbonates, kaolin, and smectite occurring with the iron oxide minerals as a coating on the quartz grains. An acid washing procedure removed the reducible iron oxide minerals from the clay coating but left the clays substantially unaltered. Subsequent dielectric and magnetic analysis of the s les indicates that the iron oxide minerals removed during the washing process are responsible for the reduction of GPR penetration at 250 MHz from approximately 10 m to only 1 m.
Publisher: Geological Society of London
Date: 17-04-2013
Publisher: Elsevier BV
Date: 06-2000
Publisher: Geological Society of London
Date: 17-04-2013
Publisher: Informa UK Limited
Date: 02-1997
Publisher: AIP
Date: 2010
DOI: 10.1063/1.3399266
Publisher: Elsevier BV
Date: 02-1997
Publisher: Elsevier BV
Date: 1988
Publisher: Geological Society of London
Date: 17-04-2013
Publisher: Elsevier BV
Date: 09-1984
Publisher: Elsevier BV
Date: 06-1992
Publisher: Elsevier BV
Date: 12-2011
Publisher: Elsevier BV
Date: 2012
Publisher: Geological Society of London
Date: 08-2007
Publisher: Elsevier BV
Date: 05-1998
No related grants have been discovered for Melvyn Lintern.