Ashford 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 9139
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

Ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia supported by groundwater flow from fractured rock (e.g. Texas beds) aquifers (eMDB_RS_01J)
Channels intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia supported by groundwater flow from fractured rock (e.g. Texas beds) aquifers
Surface ecosystems dependent on the surface expression of groundwater
Alluvia supported by groundwater flow from fractured rock (e.g. Texas beds)

Derived GDE - low confidence

Ecosystems intermittently connected to aquifers with fresh salinity in fractured rock (e.g. Texas beds) (eMDB_RS_08A)
Second order channels intermittently connected to metamorphic rock aquifers with fresh salinity
Surface ecosystems dependent on the surface expression of groundwater

Ecosystems intermittently connected to aquifers with fresh salinity in fractured rock (limestone) (eMDB_RS_08B)
Channels intermittently connected to limestone aquifers with fresh salinity
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

Ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia supported by groundwater flow from fractured rock (e.g. Texas beds) aquifers (eMDB_RS_01J)
Lacustrine wetlands, palustrine wetlands, and riverine waterbodies intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia supported by groundwater flow from fractured rock (e.g. Texas beds) aquifers
Alluvia supported by groundwater flow from fractured rock (e.g. Texas beds)

81-100% GDE, derived GDE - moderate confidence

81-100% GDE, derived GDE - low confidence

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia supported by groundwater flow from fractured rock (e.g. Texas beds) aquifers (eMDB_RS_01J)
Deep rooted regional ecosystems intermittently connected to aquifers with fresh salinity and neutral pH in unconsolidated Quaternary alluvia supported by groundwater flow from fractured rock (e.g. Texas beds) aquifers
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0
Surface ecosystems dependent on the sub-surface presence of groundwater
Alluvia supported by groundwater flow from fractured rock (e.g. Texas beds)

Ecosystems intermittently connected to aquifers with fresh salinity in fractured rock (e.g. Texas beds) (eMDB_RS_08A)
Deep rooted regional ecosystems within 50 metres of a channel intermittently connected to metamorphic rock aquifers with fresh salinity
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0
Surface ecosystems dependent on the sub-surface presence of groundwater

Ecosystems intermittently connected to aquifers with fresh salinity in fractured rock (limestone) (eMDB_RS_08B)
Deep rooted regional ecosystems intermittently connected to limestone aquifers with fresh salinity
Biodiversity status of pre-clearing and remnant regional ecosystems v10.0
Surface ecosystems dependent on the sub-surface presence of groundwater

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

Subterranean GDE (caves)

Purdy, D. et al. (2007) Texas Special Sheet 9140 Part Sheets 9139 9329 9240, 1:100 000 Geological Special Map Series.
Grimes K.G. (1977) The Border Rivers Karst Region, QLD & NSW, 11th ASF Conference p131-134
RN1, RIVERTON MAIN CAVE, RN2, RIVERTON POTHOLE

Purdy, D. et al. (2007) Texas Special Sheet 9140 Part Sheets 9139 9329 9240, 1:100 000 Geological Special Map Series.
Matthews P. (1985), Australian Karst Index, ASF Inc. p4-66

Purdy, D. et al. (2007) Texas Special Sheet 9140 Part Sheets 9139 9329 9240, 1:100 000 Geological Special Map Series.

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

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

Consolidated sedimentary aquifers

Igneous rock aquifers

Metamorphic rock aquifers

Ecosystems intermittently connected to aquifers with fresh salinity in fractured rock (e.g. Texas beds) (eMDB_RS_08A)

Ecosystems intermittently connected to aquifers with fresh salinity in fractured rock (limestone) (eMDB_RS_08B)

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers