Rolleston 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 8649
Version 1.5
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Surface expression GDE (points)

Known GDE

Derived GDE - moderate confidence

Surface expression GDE (lines)

Derived GDE - high confidence

Permeable rock aquifers (basalts) (100 hectares or more) with fresh, intermittent groundwater connectivity regime (SURAT_RS_02A)
Channels on or within 100 metres of basalt plains and hills (100 hectares or more) with fresh, intermittent flow
Permeable rocks (rocks with predominantly primary porosity)
Surface ecosystems dependent on the surface expression of groundwater

Derived GDE - low confidence

Permeable consolidated sedimentary rock aquifers with fresh, intermittent groundwater connectivity regime (SURAT_RS_03A)
Second order or greater channels on sandstone with fresh, intermittent flow
Surface ecosystems dependent on the surface expression of groundwater
Quartzose sandstones (e.g. Boxvale Sandstone, Clematis Sandstone, Hutton Sandstone, Precipice Sandstone)

Permeable rock aquifers (basalts) (less than 100 hectares) with fresh, episodic groundwater connectivity regime (SURAT_RS_02B)
Channels within 20 metres of the edge of basalt plains and hills (less than 100 hectares) with fresh, episodic flow
Permeable rocks (rocks with predominantly primary porosity)
Surface ecosystems dependent on the surface expression of groundwater

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

Permeable rock aquifers (basalts) (100 hectares or more) with fresh, intermittent groundwater connectivity regime (SURAT_RS_02A)
Lacustrine and palustrine wetlands, and riverine waterbodies within 50 metres of a channel on basalt plains and hills (100 hectares or more) with fresh, intermittent flow
Permeable rocks (rocks with predominantly primary porosity)

Permeable rock aquifers (basalts) (100 hectares or more) with fresh, intermittent groundwater connectivity regime (SURAT_RS_02A)
Lacustrine and palustrine wetlands, and riverine waterbodies within 50 metres of the edge of basalt plains and hills (100 hectares or more) with fresh, intermittent flow

81-100% GDE, derived GDE - moderate confidence

Lacustrine and palustrine wetlands, and riverine waterbodies within 50 metres of a channel on basalt plains and hills (100 hectares or more) with fresh, intermittent flow
81-100 Derived GDE - Moderate Confidence

Lacustrine and palustrine wetlands, and riverine waterbodies within 50 metres of the edge of basalt plains and hills (100 hectares or more) with fresh, intermittent flow
81-100 Derived GDE - Moderate Confidence

81-100% GDE, derived GDE - low confidence

Permeable rock aquifers (basalts) (less than 100 hectares) with fresh, episodic groundwater connectivity regime (SURAT_RS_02B)
Lacustrine and palustrine wetlands, and riverine waterbodies within 20 metres of the edge of basalt plains and hills (less than 100 hectares) with fresh, episodic flow

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Riverine wetlands within 50 metres of a channel on basalt plains and hills (100 hectares or more) with fresh, intermittent flow
Surface ecosystems dependent on the sub-surface presence of groundwater

Riverine wetlands within 50 metres of the edge of basalt plains and hills (100 hectares or more) with fresh, intermittent flow
Surface ecosystems dependent on the sub-surface presence of groundwater

Treed regional ecosystems within 50 metres of a channel on basalt plains and hills (100 hectares or more) with fresh, intermittent flow
Surface ecosystems dependent on the sub-surface presence of groundwater

Treed regional ecosystems within 50 metres of the edge of basalt plains and hills (100 hectares or more) with fresh, intermittent flow

Permeable consolidated sedimentary rock aquifers with fresh, intermittent groundwater connectivity regime (SURAT_RS_03A)
Specific regional ecosystems on sandstone with fresh, intermittent flow
81-100 Derived GDE - Moderate Confidence
Quartzose sandstones (e.g. Boxvale Sandstone, Clematis Sandstone, Hutton Sandstone, Precipice Sandstone)

Riverine wetlands within 50 metres of a channel on basalt plains and hills (100 hectares or more) with fresh, intermittent flow

Riverine wetlands within 50 metres of the edge of basalt plains and hills (100 hectares or more) with fresh, intermittent flow

Treed regional ecosystems within 50 metres of a channel on basalt plains and hills (100 hectares or more) with fresh, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fresh, intermittent groundwater connectivity regime (SURAT_RS_01A)
Riverine wetlands on alluvia overlying sandstone ranges with fresh, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fresh, intermittent groundwater connectivity regime (SURAT_RS_01A)
Treed regional ecosystems on alluvia overlying sandstone ranges with fresh, intermittent flow

Permeable consolidated sedimentary rock aquifers with fresh, intermittent groundwater connectivity regime (SURAT_RS_03A)
Treed regional ecosystems within 50 metres of a second order or greater channel on sandstone with fresh, intermittent flow
Quartzose sandstones (e.g. Boxvale Sandstone, Clematis Sandstone, Hutton Sandstone, Precipice Sandstone)

Permeable old loamy and sandy plains with fresh, intermittent groundwater connectivity regime (SURAT_RS_05)
Specific regional ecosystems on old loamy and sandy plains with fresh, intermittent flow

Permeable rock aquifers (basalts) (less than 100 hectares) with fresh, episodic groundwater connectivity regime (SURAT_RS_02B)
Treed regional ecosystems within 20 metres of the edge of basalt plains and hills (less than 100 hectares) with fresh, episodic flow

Quaternary alluvial aquifers with fluctuating, intermittent groundwater connectivity regime with neutral pH (SURAT_RS_01D)
Treed regional ecosystems on alluvia with fluctuating, intermittent flow and neutral pH in the central and western Dawson River catchment

Quaternary alluvial aquifers with fresh, intermittent groundwater connectivity regime (SURAT_RS_01C)
Treed regional ecosystems on alluvia with fresh, intermittent flow

Riverine wetlands within 20 metres of the edge of basalt plains and hills (less than 100 hectares) with fresh, episodic flow

Subterranean GDE (caves)

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

Permeable old loamy and sandy plains with fresh, intermittent groundwater connectivity regime (SURAT_RS_05)

Quaternary alluvial aquifers overlying sandstone ranges with fresh, intermittent groundwater connectivity regime (SURAT_RS_01A)

Quaternary alluvial aquifers with fluctuating, intermittent groundwater connectivity regime with neutral pH (SURAT_RS_01D)

Quaternary alluvial aquifers with fresh, intermittent groundwater connectivity regime (SURAT_RS_01C)

Consolidated sedimentary aquifers

Igneous rock aquifers

Metamorphic rock aquifers

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers