Gayndah 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 9246
Version 1.5
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Surface expression GDE (points)

Known GDE

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

BanBan
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

GDE (baseflow) according to local expert knowledge (KNOWN SITE)
GDE (baseflow) according to local expert knowledge
Surface ecosystems dependent on the surface expression of groundwater

Permeable geologies (Barambah Basalt) - WBB (WBB_RS_12)
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)

Derived GDE - low confidence

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

81-100% GDE, derived GDE - moderate confidence

81-100 Derived GDE - Moderate Confidence

Vegetation (RE list) fringing channels indicating seeps and soaks on alluvia
81-100 Derived GDE - Moderate Confidence

Wetlands (excluding riverine REs) on alluvia
81-100 Derived GDE - Moderate Confidence

Permeable geologies (Barambah Basalt) - WBB (WBB_RS_12)
Channels (RE 12.3.7b) on Barambah Basalt

Permeable geologies (Barambah Basalt) - WBB (WBB_RS_12)
Wetlands (excluding riverine REs) on Barambah Basalt

81-100% GDE, derived GDE - low confidence

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

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

Non-wetland vegetation on alluvia (land zone 3 REs)
Surface ecosystems dependent on the sub-surface presence of groundwater

Riverine RE vegetation fringing channels on alluvia
Surface ecosystems dependent on the sub-surface presence of groundwater

Vegetation (RE list) fringing channels indicating seeps and soaks on alluvia
Surface ecosystems dependent on the sub-surface presence of groundwater

Non-wetland vegetation on Barambah Basalt (land zone 3 and 8 REs)

Riverine RE vegetation fringing channels on Barambah Basalt

Permeable geologies including deeply weathered basalts (red soils) - WBB (WBB_RS_04)
Non-wetland vegetation on permeable geologies including deeply weathered basalts (red soils)

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

Subterranean GDE (caves)

UQSS Map 81, 1:25000 interpretation of Barambah Basalt around lava tube, 1:100,000 Geology mapping and photo interpretation
Matthews P. (1985), Australian Karst Index p4-6, ASF and Grimes K.G. (1979), UQSS Journal - Down Under Vol18 (3) p94
BH2, DUSTPIPE CAVE, 40m dry lava tunnel in basalt tuff on the side of Volcanic Vent

UQSS Map 81, 1:25000 interpretation of Barambah Basalt around lava tube, 1:100,000 Geology mapping and photo interpretation
Grimes K.G. (1979), UQSS Journal - Down Under Vol 18(3) p91-96

Bannink P. (2012), Topographic feature interpreted from SPOT imagery
Field exploration of cave and GPS of location 15 Oct 2012

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

Consolidated sedimentary aquifers

Igneous rock aquifers

Metamorphic rock aquifers

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers