0
40
TQ
No information provided
Strat Unit Name
Tertiary-Pleistocene rocks
Strat Unit Description
Undifferentiated Tertiary to Pleistocene rocks.
GIS Code
aI
40
70.08
? Nhueh
SANDSTONE
CONGLOMERATE
Med.-coarse gr. sandstone with coarse chert and GRV grit horizons over fine sand and polymict conglomerate
Strat Unit Name
Whyalla Sandstone
Strat Unit Description
Sandstone, coarse-grained, bimodal, with large-scale crossbedding, sand grains very well rounded, spherical.
GIS Code
N-hueh
70.08
220.8
Nhunt
SHALE
? DOLOMITE ROCK
Laminated and interbedded shale and carbonate, siltstone, intraformational pebble conglomerate
Strat Unit Name
Tapley Hill Formation
Strat Unit Description
Siltstone, grey to black, dolomitic and pyritic grading upwards to calcareous, thinly laminated, locally cross-bedded; dolomite, grey, flaggy to massive; limestone conglomerate, intraformational; greywacke.
GIS Code
N-hunt
220.8
250.96
Nxcae
BASALT
fg volcanic
Strat Unit Name
Beda Basalt
Strat Unit Description
Basalt, amygdaloidal to massive, tholeiitic, subaerial, flows 1-30m thick, altered by chlorite, sericite, hematite, amphibole, epidote and K-feldspar.
GIS Code
N-xcae
250.96
252.86
Nxcak
SANDSTONE
CONGLOMERATE
Red, mg poorly bedded sandstone, grit horizons containing clasts of quartzite, schist and chert.
Strat Unit Name
Backy Point Formation
Strat Unit Description
Sandstone; conglomerate, pink to red, locally haematitic.
GIS Code
N-xcak
252.86
279.3
Nxcae
BASALT
Strat Unit Name
Beda Basalt
Strat Unit Description
Basalt, amygdaloidal to massive, tholeiitic, subaerial, flows 1-30m thick, altered by chlorite, sericite, hematite, amphibole, epidote and K-feldspar.
GIS Code
N-xcae
279.3
287.32
Nxcak
SANDSTONE
CONGLOMERATE
Strat Unit Name
Backy Point Formation
Strat Unit Description
Sandstone; conglomerate, pink to red, locally haematitic.
GIS Code
N-xcak
287.32
292.42
Nxcae
BASALT
Strat Unit Name
Beda Basalt
Strat Unit Description
Basalt, amygdaloidal to massive, tholeiitic, subaerial, flows 1-30m thick, altered by chlorite, sericite, hematite, amphibole, epidote and K-feldspar.
GIS Code
N-xcae
292.42
293.05
Nxcak
SANDSTONE
CONGLOMERATE
Strat Unit Name
Backy Point Formation
Strat Unit Description
Sandstone; conglomerate, pink to red, locally haematitic.
GIS Code
N-xcak
293.05
315.1
Nxcae
BASALT
SANDSTONE
Basalt interbedded with sandstone.
Strat Unit Name
Beda Basalt
Strat Unit Description
Basalt, amygdaloidal to massive, tholeiitic, subaerial, flows 1-30m thick, altered by chlorite, sericite, hematite, amphibole, epidote and K-feldspar.
GIS Code
N-xcae
315.1
392.93
Nxcae
BASALT
Strat Unit Name
Beda Basalt
Strat Unit Description
Basalt, amygdaloidal to massive, tholeiitic, subaerial, flows 1-30m thick, altered by chlorite, sericite, hematite, amphibole, epidote and K-feldspar.
GIS Code
N-xcae
392.93
400.4
Nxcak
SAND
CONGLOMERATE
Med.-coarse gr. subrounded sands with minor interbedded conglomerate
Strat Unit Name
Backy Point Formation
Strat Unit Description
Sandstone; conglomerate, pink to red, locally haematitic.
GIS Code
N-xcak