Name: GroundwaterDivides

Display Field: Confidence

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: The groundwater divides dataset was derived from the regional watertable surface, which was created using groundwater elevations from a subset of bores attributed to the Barkly, Narpa, Cockroach and Toko group aquifers of the Georgina Basin. At the basin-scale, these aquifers are assumed to be hydraulically connected due to the absence of regional aquitards or other geological structures. These aquifers, commonly referred to in this report as the ‘regionally unconfined aquifers’, are the most common aquifers for groundwater supplies over most of the SNG region (except for the far southern parts where the Georgina Basin is overlain by younger Mesozoic aquifers of the Great Artesian Basin).The north-east trending groundwater divide separates the regional unconfined aquifers of the Georgina Basin into northern and southern groundwater flow systems. The location of the groundwater divide has greater uncertainty towards the sourthern extent due to less bore data near the basin boundary. This groundwater divide is in the vicinity of a prominent geological basement structure known as the Alexandria-Wonarah High.

Copyright Text: © Commonwealth of Australia (Geoscience Australia) 2024. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode

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Extent:

XMin: 136.17244154600007
YMin: -20.56189735199996
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Spatial Reference: 4283  (4283)  LatestVCSWkid(0)

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  Label: Groundwater divide
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• Value: Groundwater divide (uncertain)
  Label: Groundwater divide (uncertain)
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