Nanango 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 9344
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

Alluvial aquifers with intermittent flow - SEQ (SEQ_RS_22)
Channels on alluvia with intermittent flow
Surface ecosystems dependent on the surface expression of groundwater

Alluvial aquifers with near-permanent flow - SEQ (SEQ_RS_21)
Channels on alluvia with near-permanent flow
Surface ecosystems dependent on the surface expression of groundwater

Alluvial aquifers with permanent natural flow - SEQ (SEQ_RS_20)
Channels on alluvia with permanent natural flow
Surface ecosystems dependent on the surface expression of groundwater

High rainfall permeable rocks (basalts) with near-permanent flow - SEQ (SEQ_RS_01)
Channels on or extending up to 1 kilometre from basalt and basalt colluvium with high rainfall and near-permanent flow
Permeable rocks (rocks with predominantly primary porosity)

Low rainfall &/or low capacity permeable rocks (basalts) - SEQ (SEQ_RS_03)
Channels on or extending up to 100 metres from low rainfall &/or low capacity basalt
Permeable rocks (rocks with predominantly primary porosity)

Permeable geologies including deeply weathered basalts (red soils) - WBB (WBB_RS_04)
Channels on permeable geologies including deeply weathered basalts (red soils)
Permeable rocks (rocks with predominantly primary porosity)

Derived GDE - low confidence

Fractured igneous rocks with intermittent flow - SEQ (SEQ_RS_17)
Channels on fractured igneous rocks with intermittent flow
Fractured rocks (rocks with predominantly secondary porosity)

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

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

81-100% GDE, 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

Permeable geologies including deeply weathered basalts (red soils) - WBB (WBB_RS_04)
Wetlands (excluding riverine REs) on permeable geologies including deeply weathered basalts (red soils)
81-100 Derived GDE - Moderate Confidence

81-100% GDE, derived GDE - low confidence

Fractured igneous rocks with intermittent flow - SEQ (SEQ_RS_17)
Lacustrine and palustrine wetlands and riverine water bodies fringing channels on fractured igneous rocks with intermittent flow
Fractured rocks (rocks with predominantly secondary porosity)

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

01-80% GDE, derived GDE - high confidence

01-80% GDE, 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

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

Permeable geologies including deeply weathered basalts (red soils) - WBB (WBB_RS_04)
Vegetation indicating seeps and soaks on permeable geology including deeply weathered basalts (red soils) contact zone

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Treed regional ecosystems and riverine wetlands on alluvia with intermittent flow
Surface ecosystems dependent on the sub-surface presence of groundwater

Treed regional ecosystems on alluvia with near-permanent flow
Surface ecosystems dependent on the sub-surface presence of groundwater

Alluvial aquifers with permanent natural flow - SEQ (SEQ_RS_20)
Treed regional ecosystems and riverine wetlands on alluvia with permanent natural flow
Surface ecosystems dependent on the sub-surface presence of groundwater

High rainfall permeable rocks (basalts) with near-permanent flow - SEQ (SEQ_RS_01)
Treed regional ecosystems and riverine wetlands fringing streams on basalt, basalt colluvium or within basalt contact zone, with high rainfall

Low rainfall &/or low capacity permeable rocks (basalts) - SEQ (SEQ_RS_03)
Mesic ecosystems on low rainfall &/or low capacity basalt, or treed regional ecosystems and riverine wetlands fringing streams on low rainfall &/or low capacity basalt,associated colluvium or within basalt contact zone

Non-wetland vegetation on permeable geologies including deeply weathered basalts (red soils)

Fractured igneous rocks with intermittent flow - SEQ (SEQ_RS_17)
Treed regional ecosystems and riverine wetlands fringing channels on fractured igneous rocks with intermittent flow

Fractured metamorphic rocks - SEQ (SEQ_RS_15)
Mesic ecosystems on fractured metamorphic rocks

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

Vegetation indicating seeps and soaks on permeable geology including deeply weathered basalts (red soils) contact zone

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 permanent natural flow (SEQ_RS_20)

Consolidated sedimentary aquifers

Low porosity sedimentary rocks with intermittent flow (SEQ_RS_06)

Igneous rock aquifers

Fractured igneous rocks with intermittent flow (SEQ_RS_17)

High rainfall permeable rocks (basalts) with near-permanent flow (SEQ_RS_01)

Low rainfall &/or low capacity permeable rocks (basalts) (SEQ_RS_03)

Metamorphic rock aquifers

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers