GEOMORPHOLOGY REPORT - CRC LEME
GEOMORPHOLOGY REPORT - CRC LEME GEOMORPHOLOGY REPORT - CRC LEME
List of Figures Figure 1. The Lindsay-Wallpolla and Lake Victoria-Darling Anabranch study area ............... 1 Figure 2. Typical landscape close to Murray River on Wallpolla Island .................................. 1 Figure 3. Conceptual model (cross-section) and geophysical targets in the Lindsey – Walpolla area:................................................................................................................................... 4 Figure 4. Schematic hydrogeological cross-section representing the Lindsay Island reach of the Murray River Floodplain. ........................................................................................... 4 Figure 5. Coverage of digital elevation model types................................................................. 6 Figure 6. Compartmentalisation of the Murray River incised valley fill into terrace and floodplain deposits of different ages. .............................................................................. 8 Figure 7. Diagrammatic representation of relationships between geomorphic and stratigraphic units................................................................................................................................... 9 Figure 8. Oblique projection of part of LIDAR DEM showing geomorphic elements. ......... 10 Figure 9. Vertical view of part of LIDAR DEM showing geomorphic elements. .................. 11 Figure 10. Further vertical view of part of LIDAR DEM showing geomorphic elements...... 12 Figure 11. Terrace vegetation and materials. .......................................................................... 12 Figure 12. Modern floodplain (right) with well developed river red gum forest. Intermediate floodplain (left) with black box woodland,..................................................................... 13 Figure 13. Oldest floodplain (left) with black box and Lignum-saltbush savannah. Riparian vegetation (right) of bulrushes, lilies, and macroalgae, Horseshoe Lagoon, .................. 13 Figure 14. Location of soil sample sites western end of Lindsay-Wallpolla and Lake Victoria- Darling Anabranch.......................................................................................................... 15 Figure 15. Location of soil sample sites eastern end of Lindsay-Wallpolla and Lake Victoria- Darling Anabranch.......................................................................................................... 15 Figure 16. Sand and clay percentage from each geomorphic unit........................................... 16 Figure 17. Mean pH profiles from each geomorphic unit. ...................................................... 18 Figure 18. Mean EC profiles from each geomorphic unit....................................................... 18 Figure 19. SPOT image of Wallpolla Creek (containing water at time imaged) and clay-lined nature of dried up channel of Wallpolla Creek as seen at ground level.......................... 22 vii
List of Tables Table 1. Associations between regolith landform units, vegetation and surface materials ..... 14 Table 2. Range of EC and pH values for different geomorphic units in the Lindsay-Wallpolla and Lake Victoria-Darling Anabranch study area .......................................................... 19 Table 3. Mean values of selected XRF analyses ..................................................................... 20 viii
- Page 1 and 2: CRCLEME Cooperative Research Centre
- Page 3 and 4: This report (CRC LEME Open File Rep
- Page 5 and 6: Lindsay and Wallpolla Creeks are si
- Page 7: TABLE OF CONTENTS _Toc224538156 1 I
- Page 11 and 12: The main objective of the studies r
- Page 13 and 14: 4. Identification of the high recha
- Page 15 and 16: The SRTM was used as to provide the
- Page 17 and 18: Figure 6. Compartmentalisation of t
- Page 19 and 20: Dune on terrace Alluvial terrace Yo
- Page 21 and 22: Intermediate floodplain Modern floo
- Page 23 and 24: Locations of sample sites are given
- Page 25 and 26: 6.1 Granulometry 6.1.1 Methodology
- Page 27 and 28: Table 2). Mean pH and EC profiles a
- Page 29 and 30: when sampling. This is also reflect
- Page 31 and 32: Figure 12. SPOT image of Wallpolla
- Page 33 and 34: REFERENCES Bowler, J.M. and Harford
- Page 35 and 36: APPENDIX 1. ASTER data and interpre
- Page 37 and 38: APPENDIX 2. SPOT Data and interpret
- Page 39 and 40: APPENDIX 3. DEM data and interpreta
- Page 41 and 42: APPENDIX 4. Gamma-ray data 500000 (
- Page 43 and 44: APPENDIX 6. Site Descriptions and D
- Page 45 and 46: Site 3 South Settlement road, ~20 m
- Page 47 and 48: Site 5 Western end of Keera Road, s
- Page 49 and 50: Site 7 Eastern end of Old Mail Rd t
- Page 51 and 52: Site 12 Further to west along Old M
- Page 53 and 54: Site 14 Dedmens drive, across aband
- Page 55 and 56: Site 16 Same area as previous sampl
- Page 57 and 58: Site 18 Same location as 17, interm
List of Tables<br />
Table 1. Associations between regolith landform units, vegetation and surface materials ..... 14<br />
Table 2. Range of EC and pH values for different geomorphic units in the Lindsay-Wallpolla<br />
and Lake Victoria-Darling Anabranch study area .......................................................... 19<br />
Table 3. Mean values of selected XRF analyses ..................................................................... 20<br />
viii
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