Vandyke 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 8448
Version 1.5
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Surface expression GDE (points)

Known GDE

DryCrkSpr(perm)
Surface ecosystems dependent on the surface expression of groundwater
Permeable rocks (rocks with predominantly primary porosity)

Channin
Surface ecosystems dependent on the surface expression of groundwater
Sedimentary rocks (Great Artesian Basin - e.g. Bundamba Group)
Permeable rocks (rocks with predominantly primary porosity)

sixmilespring
Surface ecosystems dependent on the surface expression of groundwater
Sedimentary rocks (Great Artesian Basin - e.g. Moolayember Formation)
Permeable rocks (rocks with predominantly primary porosity)

Gologah
Sedimentary rocks (Great Artesian Basin - e.g. Bundamba Group)

Sedimentary rocks (Great Artesian Basin - e.g. Moolayember Formation)

spring
Sedimentary rocks (Great Artesian Basin - e.g. Bundamba Group)

un-named
Riverine spring wetlands in active watercourses with permanent to semi-permanent groundwater connectivity to local groundwater flow systems (spring type 4)

un-named
Fresh riverine and palustrine spring wetlands in active watercourses with semi-permanent groundwater connectivity to local and regional groundwater flow systems (spring type 3)

Figtree

Ti-tree

Longgul

Orange

Black Bull
Fresh riverine and palustrine spring wetlands in active watercourses with semi-permanent groundwater connectivity to local and regional groundwater flow systems (spring type 3)

Bluewater
Fresh riverine and palustrine spring wetlands in active watercourses with semi-permanent groundwater connectivity to local and regional groundwater flow systems (spring type 3)

Ladybird

Myall

GoodFrid

Steep

Airstrip

New

Athol's
Sedimentary rocks (Great Artesian Basin - e.g. Precipice Sandstone)

RockArt

Eriocaul
Sedimentary rocks (Great Artesian Basin - e.g. Precipice Sandstone)

Paddy's

MahlongI
Riverine spring wetlands in active watercourses in upper catchments with ephemeral surface flow with permanent to semi-permanent groundwater connectivity to local groundwater flow systems (spring type 5)

Willow
Riverine spring wetlands in active watercourses in upper catchments with ephemeral surface flow with permanent to semi-permanent groundwater connectivity to local groundwater flow systems (spring type 5)

Rileys Gap

Piebald
Riverine spring wetlands in active watercourses with permanent to semi-permanent groundwater connectivity to local groundwater flow systems (spring type 4)

Wild Horse

MahlonII
Riverine spring wetlands in active watercourses in upper catchments with ephemeral surface flow with permanent to semi-permanent groundwater connectivity to local groundwater flow systems (spring type 5)

Derived GDE - moderate confidence

Bulldog
Riverine spring wetlands in active watercourses with permanent to semi-permanent groundwater connectivity to local groundwater flow systems (spring type 4)

Cluster Fig Spring

Fig tree spring

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 rock aquifers (basalts) with fresh, intermittent groundwater connectivity regime (LEB_RS_06B)
Channels on basalt plains and hills with fresh, intermittent flow

Permeable rock aquifers (basalts) with fresh, intermittent groundwater connectivity regime (LEB_RS_06B)
Channels within 50 metres of the basalt plains and hills contact zone with fresh, intermittent flow

Permeable rock aquifers (sandstones) with fluctuating, intermittent groundwater connectivity regime (LEB_RS_07B)
Channels on sandstone ranges with fluctuating, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fluctuating, intermittent groundwater connectivity regime (LEB_RS_01S)
Channels on alluvia overlying sandstone ranges with fluctuating, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fresh, intermittent groundwater connectivity regime (LEB_RS_01B)
Channels on alluvia overlying sandstone ranges with fresh, intermittent flow

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

Ecosystems intermittently connected to aquifers with fresh salinity in relatively homogenous consolidated sedimentary rock (eMDB_RS_05A)
Channels intermittently connected to aquifers with fresh salinity in relatively homogenous consolidated sedimentary rock
Consolidated sedimentary rocks (e.g. Gubberamunda Sandstone, Hooray Sandstone, Hutton Sandstone, Precipice Sandstone, Springbok Sandstone)

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
Quartzose sandstones (e.g. Boxvale Sandstone, Clematis Sandstone, Hutton Sandstone, Precipice Sandstone)

Quaternary alluvial aquifers with fresh, intermittent groundwater connectivity regime (LEB_RS_01D)
Channels on alluvia with fresh, intermittent flow in the Warrego River catchment

Ecosystems intermittently connected to aquifers with fresh salinity in permeable rock (basalt) (eMDB_RS_06C)
Channels within 50 metres of basalt plains and hills and intermittently connected to basalt aquifers with fresh salinity

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

81-100% GDE, derived GDE - moderate confidence

Quaternary alluvial aquifers overlying sandstone ranges with fresh, intermittent groundwater connectivity regime (LEB_RS_01B)
Lacustrine and palustrine wetlands on alluvia overlying sandstone ranges with fresh, intermittent flow
81-100 Derived GDE - Moderate Confidence

81-100% GDE, derived GDE - low confidence

Ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia (eMDB_RS_01A)
Lacustrine and palustrine wetlands intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Permeable rock aquifers (basalts) (100 hectares or more) with fresh, intermittent groundwater connectivity regime (SURAT_RS_02A)
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

Permeable rock aquifers (basalts) (100 hectares or more) with fresh, intermittent groundwater connectivity regime (SURAT_RS_02A)
Treed regional ecosystems 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

Permeable rock aquifers (basalts) with fresh, intermittent groundwater connectivity regime (LEB_RS_06B)
Riverine wetlands within 50 metres of a channel on basalt plains and hills with fresh, intermittent flow
Surface ecosystems dependent on the sub-surface presence of groundwater

Riverine wetlands within 50 metres of the basalt plains and hills contact zone with fresh, intermittent flow

Treed regional ecosystems within 50 metres of a channel on basalt plains and hills with fresh, intermittent flow

Treed regional ecosystems within 50 metres of the basalt plains and hills contact zone with fresh, intermittent flow

Ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia (eMDB_RS_01A)
Regional ecosystems dominated by Eucalyptus camaldulensis (river red gum), Eucalyptus intertexta (gum coolibah), and/or Corymbia tessellaris (Moreton Bay Ash) intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quate
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0

Treed regional ecosystems 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

Treed regional ecosystems 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

Permeable rock aquifers (sandstones) with fluctuating, intermittent groundwater connectivity regime (LEB_RS_07B)
Riverine wetlands within 50 metres of a channel on sandstone ranges with fluctuating, intermittent flow

Permeable rock aquifers (sandstones) with fluctuating, intermittent groundwater connectivity regime (LEB_RS_07B)
Specific regional ecosystems containing Moreton Bay Ash on sandstone ranges with fluctuating, intermittent flow

Treed regional ecosystems within 50 metres of a channel on sandstone ranges with fluctuating, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fluctuating, intermittent groundwater connectivity regime (LEB_RS_01S)
Riverine wetlands on alluvia overlying sandstone ranges with fluctuating, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fluctuating, intermittent groundwater connectivity regime (LEB_RS_01S)
Treed regional ecosystems on alluvia overlying sandstone ranges with fluctuating, intermittent flow

Quaternary alluvial aquifers overlying sandstone ranges with fresh, intermittent groundwater connectivity regime (LEB_RS_01B)
Treed regional ecosystems 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

Ecosystems intermittently connected to aquifers with fresh salinity in relatively homogenous consolidated sedimentary rock (eMDB_RS_05A)
Deep rooted regional ecosystems within 50 metres of a channel and intermittently connected to aquifers with fresh salinity in relatively homogenous consolidated sedimentary rock
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0
Consolidated sedimentary rocks (e.g. Gubberamunda Sandstone, Hooray Sandstone, Hutton Sandstone, Precipice Sandstone, Springbok Sandstone)

Ecosystems intermittently connected to aquifers with fresh salinity in permeable rock (basalt) (eMDB_RS_06C)
Deep rooted regional ecosystems within 50 metres of a channel and intermittently connected to basalt aquifers with fresh salinity
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0

Ecosystems intermittently connected to aquifers with fresh salinity in permeable rock (basalt) (eMDB_RS_06C)
Deep rooted regional ecosystems within 50 metres of the edge of basalt plains and hills and intermittently connected to basalt aquifers with fresh salinity

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 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 (LEB_RS_01P)
Specific regional ecosystems containing Eucalyptus species on alluvia with fluctuating, intermittent flow

Quaternary alluvial aquifers with fresh, intermittent groundwater connectivity regime (LEB_RS_01D)
Riverine wetlands on alluvia with fresh, intermittent flow in the Warrego River catchment

Quaternary alluvial aquifers with fresh, intermittent groundwater connectivity regime (LEB_RS_01D)
Treed regional ecosystems on alluvia with fresh, intermittent flow in the Warrego River catchment

Ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia (eMDB_RS_01A)
Deep rooted regional ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia

Riverine wetlands intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia

Riverine wetlands within 50 metres of a channel on sandstone ranges with fluctuating, intermittent flow

Specific regional ecosystems containing Moreton Bay Ash on sandstone ranges with fluctuating, intermittent flow

Riverine wetlands on alluvia overlying sandstone ranges with fluctuating, intermittent flow

Treed regional ecosystems on alluvia overlying sandstone ranges with fluctuating, intermittent flow

Riverine wetlands on alluvia overlying sandstone ranges with fresh, intermittent flow

Subterranean GDE (caves)

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

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

Quaternary alluvial aquifers with fluctuating, intermittent groundwater connectivity regime (LEB_RS_01P)

Consolidated sedimentary aquifers

Permeable consolidated sedimentary rock aquifers with fresh, intermittent groundwater connectivity regime (SURAT_RS_03A)
Quartzose sandstones (e.g. Boxvale Sandstone, Clematis Sandstone, Hutton Sandstone, Precipice Sandstone)

Ecosystems intermittently connected to aquifers with fresh salinity in relatively homogenous consolidated sedimentary rock (eMDB_RS_05A)
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0; Detailed Surface Geology 2015; Geology 250K
Consolidated sedimentary rocks (e.g. Gubberamunda Sandstone, Hooray Sandstone, Hutton Sandstone, Precipice Sandstone, Springbok Sandstone)

Igneous rock aquifers

Permeable rock aquifers (basalts) (less than 100 hectares) with fresh, episodic groundwater connectivity regime (SURAT_RS_02B)

Metamorphic rock aquifers

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers

Detailed Surface Geology 2015; Geology 250K