NORTH ENERGY SYSTEMS ASSESSMENT HOT SEDIMENTARY AQUIFER POTENTIAL Modelled total sediment thickness Modelled total aquifer thickness 139°30' 141° 142°30' 144° 145°30' 147° 141° 144° 147° 141° 144° 147°

GULF OF GULF OF CAIRNS CARPENTARIA CARPENTARIA 17° PACIFIC PACIFIC 17° G U L F O F NORMANTON NORMANTON CAIRNS BURKETOLWoN w OCEAN BURKETOWN OCEAN 18° 18° 18° 18° CA RP E N TA R I A GEORGETOWN GEORGETOWN

P A C I F I C

NORMANTON

BURKETOWN O C E A N CHARTERS CHARTERS TOWERS TOWERS 20° 20° 20° 20° 18° 18° JULIA CREEK JULIA CREEK RICHMOND MOUNT ISA RICHMOND CLONCURRY CLONCURRY HUGHENDEN HUGHENDEN GEORGETOWN

22° 22° 22° limit of assessment 22° limit of assessment

141° 144° 147° 141° 144° 147°

Total aquifer thickness estimated from drill hole data in GABLOG dataset. Aquifer Assigned Total thickness of sedimentary basins estimated from drill hole data, Sediment Assigned thickness (m) score potential field geophysical data, seismic data and the SEEBASE dataset. thickness (km) score <100 1 <1 1 19° 19° 100 - 200 2 0 200km 1 - 2 2 0 200km 200 - 300 3 2 - 3 3 300 - 400 4 3 - 4 4 400 - 500 5 4 - 5 5 500 - 600 6 >5 6 600 - 700 7

>700 8

Predicted temperature at 5 km GAB downhole water temperatures 141° 144° 147° 141° 144° 147° CHARTERS 20° 20° TOWERS GULF OF GULF OF CAIRNS CAIRNS CARPENTARIA CARPENTARIA PACIFIC PACIFIC NORMANTON NORMANTON

BURKETOWN OCEAN BURKETOWN OCEAN 18° 18° 18° 18° GEORGETOWN GEORGETOWN

JULIA CREEK NT ISA MOU CLONCURRY RICHMOND HUGHENDEN

21° 21° CHARTERS CHARTERS TOWERS TOWERS 20° 20° 20° 20°

JULIA CREEK JULIA CREEK MOUNT ISA RICHMOND MOUNT ISA RICHMOND CLONCURRY CLONCURRY HUGHENDEN HUGHENDEN

22° 22° 22° limit of assessment 22° limit of assessment

141° 144° 147° 141° 144° 147°

22° Predicted temperature at 5 km using AUSTHERM07 database. Grey polygon Temperature Assigned Temperature Assigned 22° (°C) score Water temperatures predicted from GAB downhole data. Data has limit of assessment denotes area of zero sediment thickness.This map has been partially derived been interpolated and then contours were derived at 10°C intervals. (°C) score from proprietary information owned by Earth Energy Pty Ltd ACN 078 964 735. 140 - 154 1 <40 1 139°30' 141° 142°30' 144° 145°30' 147° 154 - 168 2 40 - 50 2 WINTON 0 200km 0 200km GAB downhole Zero sediment thickness 168 - 182 3 50 - 60 3 Hot Sedimentary Aquifer Potential 0 200 kilometres 182 - 196 4 60 - 70 4 Zero sediment thickness Low High 196 - 210 5 70 - 80 5 o Transverse Mercator Projection; Central Meridian 144 E; Geocentric Datum of Australia (GDA94) >80 6 Potential for hot sedimentary aquifer (HSA) geothermal resources based on weighted summation of input datasets (shown in insets). Areas of zero sediment thickness (basement exposed at surface) have been excluded from the overall assessment of HSA potential as by definition pure HSA systems must be sediment hosted. White frame delineates the spatial extent of the area assessed. See text (Huston, 2010) for more information and references. It is recommended that this map be referred to as: Ayling B.F., Lewis B.C., Connolly D.P., 2010. MAP LOCALITY Hot Sedimentary Aquifer Potential. In: Huston D.L. (editor), 2010. North Queensland, Energy Assessment. Geoscience Australia, Canberra, GA Record, in prep.

Calculated heat generation potential Distribution of felsic intrusive rocks Thermal conductivity regions Bain, J.H.C. and Draper, J.J. (eds) 1997. North Queensland Geology. 141° 144° 147° 141° 144° 147° 141° 144° 147° Bulletin of the Australian Geological Survey Organisation 240, and GULF OF GULF OF GULF OF Queensland Department of Mines and Energy Geology 9, 600pp. CAIRNS CAIRNS CAIRNS CARPENTARIA CARPENTARIA CARPENTARIA © Commonwealth of Australia (Geoscience Australia) 2010. PACIFIC PACIFIC PACIFIC This material is released under the Creative Commons NORMANTON NORMANTON NORMANTON Cairns Attribution 2.5 Australia Licence BURKETOWN OCEAN BURKETOWN OCEAN BURKETOWN OCEAN This work is copyright. Apart from any fair dealings for the 18° 18° 18° 18° 18° 18° GEORGETOWN GEORGETOWN GEORGETOWN purpose of study, research, criticism, or review, QUEENSLAND WESTERN as permitted under the Copyright Act 1968, no part may Carpentaria AUSTRALIA be reproduced by any process without written permission. SOUTH Copyright is the responsibility of the Chief Executive Officer, Georgetown AUSTRALIA Geoscience Australia. Requests and enquiries should be NEW SOUTH directed to the Chief Executive Officer, Geoscience Australia, WALES GPO Box 378 Canberra ACT 2601 ACT Clarke River Geoscience Australia has tried to make the information in this VICTORIA product as accurate as possible. However, it does not guarantee that the information is totally accurate or complete. CHARTERS CHARTERS CHARTERS Eromanga THEREFORE YOU SHOULD NOT RELY SOLELY ON THIS TOWERS TOWERS Charters Towers TOWERS 20° TASMANIA 20° 20° 20° 20° 20° Millungera INFORMATION WHEN MAKING A COMMERCIAL DECISION

Published by Geoscience Australia, Department of Resources, JULIA CREEK JULIA CREEK JULIA CREEK Energy and Tourism, Canberra, Australia. Issued under the MOUNT ISA RICHMOND MOUNT ISA RICHMOND MOUNT ISA RICHMOND authority of the Minister for Resources, Energy and Tourism CLONCURRY CLONCURRY CLONCURRY HUGHENDEN HUGHENDEN HUGHENDEN Compiled by B.F. Ayling and B.C. Lewis, Geoscience Australia Copies of the GA Record containing this map can be downloaded Data analysis by B.F. Ayling, B.C. Lewis and D.P. Connolly Mount Isa Drummond from the Geoscience Australia internet site at: http://www.ga.gov.au Galilee Cartography by D.P. Connolly or by contacting: Produced by GIS Services Group, Onshore Energy and Minerals Division, Geoscience Australia using ESRI ArcGIS 9.3 software Sales Centre, Geoscience Australia GPO Box 378 22° 22° 22° 22° 22° limit of assessment 22° limit of assessment limit of assessment This map forms part of Geoscience Australia’s Onshore Energy Canberra ACT 2601 Security Program Phone (02) 6249 9966, Facsimile (02) 6249 9960 141° 144° 147° 141° 144° 147° 141° 144° 147° Email: [email protected]

-3 Assigned Broad geological regions defined for calculation of thermal resistance. Each region was assigned Heat generation values calculated using OZCHEM data and attributed µW/m Distribution of felsic intrusive rocks based on north Queensland solid geology map. Grey polygon score thermal conductivity values on the basis of lithology. The boundaries are based on geological to the felsic intrusive units. Grey polygon denotes area of zero denotes area of zero sediment thickness. provinces. (Bain and Draper, 1997). sediment thickness. 140 - 154 1 154 - 168 2 0 200km 0 200km Zero sediment thickness Felsic intrusives Thermal conductivity region boundary 168 - 182 3 0 200km Zero sediment thickness 182 - 196 4 196 - 210 5 NORTH QUEENSLAND ENERGY SYSTEMS ASSESSMENT HOT SEDIMENTARY AQUIFER POTENTIAL MAY 2010 PLATE 9