Brisbane 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 9543
Version 1.5
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Surface expression GDE (points)

Known GDE

Aspley Mud Spring
Surface ecosystems dependent on the surface expression of groundwater
Permeable rocks (rocks with predominantly primary porosity)

Derived GDE - moderate confidence

Surface expression GDE (lines)

Derived GDE - high confidence

Surface ecosystems dependent on the surface expression of groundwater

Coastal sand masses (beach ridges) - SEQ (SEQ_RS_38)
Channels on coastal sand masses (beach ridges)
Surface ecosystems dependent on the surface expression of groundwater

Coastal sand masses (high dunes) - SEQ (SEQ_RS_39)
Channels on coastal sand masses (high dunes)

Near-permanent low-lying coastal swamps - SEQ (SEQ_RS_36)
Channels on near-permanent low-lying coastal swamps

Alluvial aquifers with intermittent flow - SEQ (SEQ_RS_22)
Channels on alluvia with intermittent flow

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Channels on alluvia with near-permanent flow

Alluvial aquifers with sustained flow from in-stream dams - SEQ (SEQ_RS_31)
Channels on alluvia with sustained flow from in-stream dams

Deeply weathered rises and crests - SEQ (SEQ_RS_05)
Channels on or extending up to 100 metres from deeply weathered rises and crests
Permeable rocks (rocks with predominantly primary porosity)

Edge of Clarence-Moreton Basin sedimentary rocks - SEQ (SEQ_RS_08)
Channels on edge of Clarence-Moreton basin sedimentary rocks with near-permanent flow

Modified alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_27)
Modified channels on alluvia with near-permanent flow

Petrie Formation along the shoreline of Moreton Bay
Petrie formation along the shoreline of Moreton Bay

Derived GDE - low confidence

Fractured metamorphic rocks - SEQ (SEQ_RS_15)
Fractured rocks (rocks with predominantly secondary porosity)

Low porosity sedimentary rocks with intermittent flow - SEQ (SEQ_RS_06)
Channels, excluding uppermost tributaries, on low porosity sedimentary rocks with intermittent flow

Medium porosity sedimentary rocks with intermittent flow - SEQ (SEQ_RS_07)
Channels on medium porosity sedimentary rocks with intermittent flow

Sandstone with near-permanent flow - SEQ (SEQ_RS_09)
Channels excluding uppermost tributaries on sedimentary rocks with near-permanent flow

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

Lacustrine and palustrine wetlands and riverine water bodies on coastal sand masses

Coastal sand masses (beach ridges) - SEQ (SEQ_RS_38)
Lacustrine and palustrine wetlands and riverine water bodies on coastal sand masses (beach ridges)

Coastal sand masses (high dunes) - SEQ (SEQ_RS_39)
Lacustrine and palustrine wetlands and riverine water bodies on coastal sand masses (high dunes)

Man-made canals with unrestricted connectivity to marine waters

Near-permanent low-lying coastal swamps - SEQ (SEQ_RS_36)
Lacustrine and palustrine wetlands and riverine water bodies on near-permanent low-lying coastal swamps

Near-permanent perched lakes on coastal sand masses - SEQ (SEQ_RS_39d)
Near-permanent perched lakes on coastal sand masses

Permanent perched lakes on coastal sand masses - SEQ (SEQ_RS_39c)
Permanent perched lakes on coastal sand masses

81-100% GDE, derived GDE - moderate confidence

Lacustrine and palustrine wetlands and riverine water bodies on alluvia
81-100 Derived GDE - Moderate Confidence

Alluvial aquifers with intermittent flow - SEQ (SEQ_RS_22)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with intermittent flow
81-100 Derived GDE - Moderate Confidence

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with near-permanent flow
81-100 Derived GDE - Moderate Confidence

Alluvial aquifers with sustained flow from in-stream dams - SEQ (SEQ_RS_31)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with sustained flow from in-stream dams

Deeply weathered rises and crests - SEQ (SEQ_RS_05)
Lacustrine and palustrine wetlands and riverine water bodies on deeply weathered rises and crests or within contact zone
Permeable rocks (rocks with predominantly primary porosity)

Modified alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_27)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with near-permanent flow

Lacustrine and palustrine wetlands and riverine water bodies on Petrie basalt
Petrie Formation along the shoreline of Moreton Bay
Petrie formation along the shoreline of Moreton Bay

81-100% GDE, derived GDE - low confidence

Low porosity sedimentary rocks with intermittent flow - SEQ (SEQ_RS_06)
Lacustrine and palustrine wetlands and riverine water bodies fringing channels, excluding uppermost tributaries, on low porosity sedimentary rocks with intermittent flow

Medium porosity sedimentary rocks with intermittent flow - SEQ (SEQ_RS_07)
Lacustrine and palustrine wetlands and riverine water bodies fringing channels on medium porosity sedimentary rocks with intermittent flow

Sandstone with near-permanent flow - SEQ (SEQ_RS_09)
Lacustrine and palustrine wetlands and riverine water bodies fringing channels, excluding uppermost tributaries, on sedimentary rocks with near-permanent flow

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Lacustrine and palustrine wetlands and riverine water bodies on alluvia with near-permanent flow

Deeply weathered rises and crests - SEQ (SEQ_RS_05)
Lacustrine and palustrine wetlands and riverine water bodies on deeply weathered rises and crests or within contact zone

Modified alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_27)

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Treed regional ecosystems on coastal sand masses, up to 50 metres elevation
Surface ecosystems dependent on the sub-surface presence of groundwater

Coastal sand masses (beach ridges) - SEQ (SEQ_RS_38)
Treed regional ecosystems and riverine wetlands on coastal sand masses (beach ridges)
Surface ecosystems dependent on the sub-surface presence of groundwater

Coastal sand masses (high dunes) - SEQ (SEQ_RS_39)
Treed regional ecosystems and riverine wetlands on coastal sand masses (high dunes) <= 50 metres elevation
Surface ecosystems dependent on the sub-surface presence of groundwater

Near-permanent low-lying coastal swamps - SEQ (SEQ_RS_36)
Treed regional ecosystems and riverine wetlands on near-permanent low-lying coastal swamps

Treed regional ecosystems and riverine wetlands on alluvia

Alluvial aquifers with intermittent flow - SEQ (SEQ_RS_22)
Treed regional ecosystems and riverine wetlands on alluvia with intermittent flow

Treed regional ecosystems on alluvia with near-permanent flow

Treed regional ecosystems and riverine wetlands on alluvia with sustained flow from in-stream dams

Treed regional ecosystems and riverine wetlands fringing streams on deeply weathered rises and crests or within contact zone

Edge of Clarence-Moreton Basin sedimentary rocks - SEQ (SEQ_RS_08)
Treed regional ecosystems and riverine wetlands fringing channels on edge of Clarence-Moreton basin sedimentary rocks with near-permanent flow

Treed regional ecosystems and riverine wetlands on alluvia with near-permanent flow

Treed regional ecosystems and riverine wetlands on Petrie basalt
Petrie Formation along the shoreline of Moreton Bay
Petrie formation along the shoreline of Moreton Bay

Low porosity sedimentary rocks with intermittent flow - SEQ (SEQ_RS_06)
Treed regional ecosystems and riverine wetlands fringing channels on low porosity sedimentary rocks with intermittent flow

Medium porosity sedimentary rocks with intermittent flow - SEQ (SEQ_RS_07)
Treed regional ecosystems and riverine wetlands fringing channels on medium porosity sedimentary rocks with intermittent flow

Subterranean GDE (caves)

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

Alluvial aquifers with intermittent flow (SEQ_RS_22)

Alluvial aquifers with near-permanent flow (SEQ_RS_21)

Alluvial aquifers with sustained flow from in-stream dams (SEQ_RS_31)

Coastal sand masses (beach ridges) (SEQ_RS_38)

Coastal sand masses (high dunes of Stradbroke Island) (SEQ_RS_39a)

Coastal sand masses (high dunes) (SEQ_RS_39)

Deeply weathered rises and crests (SEQ_RS_05)

Modified alluvial aquifers with near-permanent flow (SEQ_RS_27)

Near-permanent perched lakes on coastal sand masses (SEQ_RS_39d)

Permanent perched lakes on coastal sand masses (SEQ_RS_39c)

Consolidated sedimentary aquifers

Edge of Clarence-Moreton Basin sedimentary rocks (SEQ_RS_08)

Low porosity sedimentary rocks with intermittent flow (SEQ_RS_06)

Medium porosity sedimentary rocks with intermittent flow (SEQ_RS_07)

Sedimentary rocks with near-permanent flow (SEQ_RS_09)

Igneous rock aquifers

Metamorphic rock aquifers

Fractured rocks (rocks with predominantly secondary porosity)

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers