0
14
Qpcb
CALCARENITE
CALCRETE
Calcreted calcarenite or grainstone
Strat Unit Name
Bridgewater Formation
Strat Unit Description
Coastal barrier and shallow sub-tidal sediments: bioclastic and aeolian cross-bedded calcarenite, palaeosol horizons, often capped by calcrete.
GIS Code
I---cb
14
27
Tun
GRAINSTONE
SAND
Med. gr. recrystallized sandy grainstone
Strat Unit Name
Nullarbor Limestone
Strat Unit Description
Limestone, bioclastic, micritic. Subtidal, platformal, above fair weather wave-base.
GIS Code
em-u-n
27
66
Tuw
WACKESTONE
MUDSTONE
Wackestone with mudstone, packstone
Strat Unit Name
Wilson Bluff Limestone
Strat Unit Description
Wackestone, white to grey; skeletal mudstone; rudstone and minor packstone. Locally laminations and scour channels, infilled with coarser material.
GIS Code
em-u-w
66
69
Tbp
CLAY (UNDIFF. ORIGIN)
SILT
Carbonaceous silty clay
Strat Unit Name
Pidinga Formation
Strat Unit Description
Siltstone, carbonaceous; lignite; sand, carbonaceous. Palaeochannel fill.
GIS Code
eI-ibp
69
94
Mth
CLAY (UNDIFF. ORIGIN)
SAND
Gritty and sandy clay
Strat Unit Name
Hiltaba Suite
Strat Unit Description
Granite, syenite, quartz monzonite, granodiorite, monzodiorite: coarse, megacrystic to equigranular, to fine-grained, granophyric, equigranular or porphyritic. Undeformed to locally strongly deformed. Minor mafic to ultramafic intrusive rocks. I to A-type, ~1600-1575 Ma.
GIS Code
M-th
94
94.7
Mth
GNEISS
Coarse gr. qtz/feld/biot/garnet/magn GNS
Strat Unit Name
Hiltaba Suite
Strat Unit Description
Granite, syenite, quartz monzonite, granodiorite, monzodiorite: coarse, megacrystic to equigranular, to fine-grained, granophyric, equigranular or porphyritic. Undeformed to locally strongly deformed. Minor mafic to ultramafic intrusive rocks. I to A-type, ~1600-1575 Ma.
GIS Code
M-th