An investigation of the hidden precious water resources of Dampier Peninsula using airborne electromagnetic method

John Joseph; Josephine Searle

doi:10.1071/ASEG2015ab163

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa An investigation of the hidden precious water resources of Dampier Peninsula using airborne electromagnetic method
Authors John Joseph^a and Josephine Searle^b
View Affiliations Hide Affiliations

^a Geophysical Consultancy Services, 26 Challenger Avenue, Morley, , WA, 6062, [email protected] ^b Department of Water-WA, P.O. Box K822, Perth, 6842, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab163
- Published online: 01 Dec 2015

Abstract

An airborne electromagnetic (AEM) survey was carried out over the Dampier Peninsula, North of Broome, WA during September-October, 2012. The key objectives of this geophysical survey funded by the Department of Water was (i) to obtain a better understanding of the nature of the contact between the base of the Broome Sandstone and the underlying siltstone; (ii) to identify areas of water retentive clay layers in the near surface, (iii) to create a map of the water table; (iv) to study the detailed geometry of the near shore saline intrusion; and thus (v) assist the conceptualisation of the hydrogeology and determine the quantity and quality of available groundwater resources for the benefit of local communities, government and industry. The survey was conducted using SkyTEM, a helicopter-borne time domain AEM system.

The processed AEM data for each of the survey lines were examined and inverted using the industry standard inversion techniques. The results were then compared with available bore-hole geophysical logging as well as the regional geophysical, geological and hydrogeological data. Apart from successfully mapping the depth to water table for the whole project area, this survey has clearly delineated the thickness of Broome Sandstone, shallow impermeable layers within the Broome Sandstone and areas of possible saline sea water intrusions. The survey has also successfully identified a WNW-ESE trending lineament (a basement high) and couple of NW-SE trending structural features (such as fault structures) from the central part of the survey region. The regional geophysical data images obtained from Department of Mines & Petroleum supports this finding.

Article metrics loading...

/content/journals/10.1071/ASEG2015ab163

2015-12-01

2026-01-13

From This Site

/content/journals/10.1071/ASEG2015ab163

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Auken, E., Christiansen,A.V., Jacobsen, L. H., and Sarensen, K. I. 2008. A resolution study of buried valleys using laterally constrained inversion of TEM data, Journal of App. Geophysics 65, 10-20
Bentley, J., 1984. Petroleum potential of the central Broome Platform. In PURCELL, P. G., (Ed)., The Canning Basin, W.A.: Proceedings of the Geological Society of Australia and Petroleum Exploration Society of Australia Symposium, Perth, 1984. p. 157-168.
Christensen N. B. and Talball R.J. 2009, A lateral model parameter correlation procedure for 1D inverse modelling: Geophysical Prospecting, 57, 919-929.
Forman, D.J. & Wales, D.W. (Compilers), 1981 - Geological evolution of the Canning Basin, Western Australia. Bureau of Mineral Resources Australia Bulletin, 210.
Gibson, DL 1983a, Broome, Western Australia 1: 250 000 Geological series-explanatory notes, Geological Survey of Western Australia, Perth.
GSWA, 2007, Prospectivity of state acreage release area L07-1, Fitzroy Trough and Lennard Shelf, Canning Basin, Western Australia Geological Survey,.Report
Kenneally, K.F., Edinger, D.C., & Willing, T. 1996, ‘Broome and beyond: plants and people of the Dampier Peninsula, Kimberley, Western Australia, Department of Conservation and Land Management, Perth.
Peiris, E. P. W., 2004, Mineral occurrences and exploration activities in the Canning area: Western Australia Geological Survey, Record 2004/3, 37p.
Playford, P.E., Cope, R.N., Cockbain, A.E., Low, G.H., & Lowry, D.C., 1975 - Phanerozoic, In Geology of Western Australia, Geol. Survey Western Australia Memoir 2, 223-433.
Searle, J.A., 2012, Groundwater resource review, Dampier Peninsula, Hydrogeological record series, Report No.HG57
Towner, R.R. & Gibson, D.L., 1983 - Geology of the onshore Canning Basin, Western Australia. Bureau of Mineral Resources Australia Bulletin, 215.
Veevers, J.J. and Wells, A.T. 1961, The geology of the Canning Basin, Western Australia, Bureau of Mineral Resources of Australia Bulletin, 60,323p.
Yeates, AN, Gibson, DL, Towner, R, & Crowe, RWA 1984, ‘Regional geology of theonshore Canning Basin, W.A’, in The Canning Basin, WA, (ed. Purcell, PG), Geological Society of Australia/Petroleum Exploration Society of Australia Symposium, Perth 1984, Proceedings, pp. 23-55.

/content/journals/10.1071/ASEG2015ab163

Article Type: Research Article

Keyword(s): Airborne EM; Broome Sandstone; Data inversion; Seawater intrusion; Structural features; Water table

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa An investigation of the hidden precious water resources of Dampier Peninsula using airborne electromagnetic method

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed