This preliminary report will provide a geochemical and ionic characterisation of groundwater, to determine baseline conditions and, if possible, to distinguish between different aquifers in the Laura basin. The groundwater quality data will be compared against the water quality guidelines for aquatic ecosystem protection, drinking water use, primary industries, use by industry, recreation and aesthetics, and cultural and spiritual values to assess the environmental values of groundwater and the treatment that may be required prior to reuse or discharge.

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These documents have been scanned by the GA Library. Please refer to the document for contents.

This Record presents new Sensitive High Resolution Ion Micro Probe (SHRIMP) U-Pb geochronological results from the central and eastern Arunta Region, obtained during the Northern Territory Geological Survey-Geoscience Australia (NTGS-GA) Geochronology project between January 2008 and June 2011. A total of 16 samples were analysed, in support of ongoing regional geoscientific investigations and mapping programs by the NTGS. This Record documents detailed results for each sample individually, encompassing sample location and geological context, a description of the target mineral for geochronology, the relevant analytical data, and a brief geochronological interpretation. A summary of all results from this study is presented in Table T1.1, and the sample locations are shown in Figures F1.1-F1.3. This Record does not attempt to present the new SHRIMP U-Pb results in the context of an exhaustive regional assessment, nor does it consider all of the relevant and available geological and geochronological information.

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These documents have been scanned by the GA Library. Please refer to the document for contents.

These documents have been scanned by the GA Library. Please refer to the document for contents.

A passive seismic investigation technique known as the spatial auto-correlation (SPAC) method has been used to measure shear wave velocity profiles down to depths of approximately 100m around the Melbourne metropolitan area. A series of surveys have been carried out in different suburbs in Melbourne to develop an average shear wave velocity profile for the bedrock formation. This paper presents details of the surveys including geometries of the geophone arrays, measured auto-correlation spectra, theoretical spectra derived from layered earth models, and the resulting shear wave velocity profiles. These shear wave velocity profiles can be used to assist in modelling the seismic attenuation relationship and radiation damping properties of the bedrock in the area as demonstrated by companion papers presented at this conference.

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These documents have been scanned by the GA Library. Please refer to the document for contents.