3
13.75
Maf2
SILTSTONE
SANDSTONE
sequence of interbedded siltstone, medium-grained sandstone and granule sandstone
Strat Unit Name
Fresh Well Formation unit 2
Strat Unit Description
Upper Fresh Well Formation, between lower Roopena Basalt and upper Roopena Basalt.
GIS Code
M-a--f--02
13.75
19.7
Maf2
TUFF
very fine-grained, cream tuff (tuff 3)
Strat Unit Name
Fresh Well Formation unit 2
Strat Unit Description
Upper Fresh Well Formation, between lower Roopena Basalt and upper Roopena Basalt.
GIS Code
M-a--f--02
19.7
55.2
Maf2
SANDSTONE
SILTSTONE
sequence of interbedded siltstone, fine-grained sandstone, medium-grained to granule lithic sandstone amd fime-grained calcareous sediments
Strat Unit Name
Fresh Well Formation unit 2
Strat Unit Description
Upper Fresh Well Formation, between lower Roopena Basalt and upper Roopena Basalt.
GIS Code
M-a--f--02
55.2
61.6
Maf2
TUFF
SILTSTONE
pink very fine-grained tuff 58.1-61.6m grading to light grey-brown silty tuff 55.2-58.1m (tuff 2)
Strat Unit Name
Fresh Well Formation unit 2
Strat Unit Description
Upper Fresh Well Formation, between lower Roopena Basalt and upper Roopena Basalt.
GIS Code
M-a--f--02
61.6
64.85
Maf2
SANDSTONE
SILTSTONE
interbedded fine-grained sandstone and siltstone
Strat Unit Name
Fresh Well Formation unit 2
Strat Unit Description
Upper Fresh Well Formation, between lower Roopena Basalt and upper Roopena Basalt.
GIS Code
M-a--f--02
64.85
65.5
Maf2
TUFF
pink, very fine-grained tuff (tuff 1)
Strat Unit Name
Fresh Well Formation unit 2
Strat Unit Description
Upper Fresh Well Formation, between lower Roopena Basalt and upper Roopena Basalt.
GIS Code
M-a--f--02
65.5
80.3
Mar1
BASALT
basalt with amygdaloidal flow top 65.50-69.40m; flow 1
Strat Unit Name
Roopena Basalt unit 1
Strat Unit Description
Lower Roopena Basalt:1 to 2 basalt flows, below upper Fresh Well Formation.
GIS Code
M-a--r--01
80.3
81.15
Maf1
CONGLOMERATE
cobble conglomerate
Strat Unit Name
Fresh Well Formation unit 1
Strat Unit Description
Lower Fresh Well Formation, below the lower Roopena Basalt.
GIS Code
M-a--f--01
81.15
124.6
Mag
RHYODACITE
composed of pink feldspar and green altered amphibole phenocrysts in purple fine-grained matrix
Strat Unit Name
Angle Dam Volcanics
Strat Unit Description
Rhyolite to dacite, porphyritic, tabular feldspar phenocrysts, lesser quartz and biotite phenocrysts, dark red to purple-red fine-grained groundmass, often brecciated and affected by sericite-haematite-carbonate alteration.
GIS Code
M-a--g
124.6
132.5
Lmm
SANDSTONE
fine- to medium-grained arkosic sandstone composed of quartz and feldspar in an argillaceous matrix
Strat Unit Name
Moonabie Formation
Strat Unit Description
Massive grey to purplish volcaniclastic grit with pebble beds and heavy mineral laminae. Bedding rarely visible.
GIS Code
L--m-m