0
32.7
CP-b
CLAYSTONE
Brown claystone.
Strat Unit Name
Boorthanna Formation
Strat Unit Description
Diamictite with shale intercalations in the basal unit, the upper unit with rhythmically bedded coarse and fine-grained clastics. Subaqueous deposition of glacial debris transported as mud flows.
GIS Code
CP---b
32.7
155.14
Erha
DOLOMITIC LIMESTONE
SHALE
Massive dolomitic limestone and shaly carbonate rock. Pelletal limestone, mudclasts and quartz grit at base.
Strat Unit Name
Andamooka Limestone
Strat Unit Description
Limestone, grey, off-white, brown, buff, pink, recrystallised, commonly dolomitised, locally sandy or pyritic. Intraclastic or oolitic interbeds; siliciclastics at base. Local trilobite fragments, archaeocyatha, calcimicrobes. Peritidal/subtidal shelf.
GIS Code
E-rh-a
155.14
437.79
Nhwstt
SHALE
SANDSTONE
Laminated red-brown shale and siltstone with minor fine-grained sandstone and carbonate interlayers. Between 201 and 257.5 m also coarse intraclast (mud and carbonate clasts) conglomerates and fine- to medium-grained, partly quartzitic sandstones.
Strat Unit Name
Tregolana Shale Member
Strat Unit Description
Shale, red and green; siltstone.
GIS Code
N-hwstt
437.79
438.18
Nhwsn
DOLOMITE ROCK
Massive dolomite.
Strat Unit Name
Nuccaleena Formation
Strat Unit Description
Dolomite, thin, laminated, micritic, with interbedded shale near the top.
GIS Code
N-hwsn
438.18
442.41
? MN
CONGLOMERATE
SANDSTONE
Conglomerate and pebbly sandstone.
Strat Unit Name
Mesoproterozoic-Neoproterozoic rocks
Strat Unit Description
Undifferentiated Meso-Neoproterozoic rocks.
GIS Code
MN
442.41
586
M-p
SANDSTONE
SILTSTONE
Red-brown feldspathic sandstone with siltstone interlayers, minor quartzitic sandstone.
Strat Unit Name
Pandurra Formation
Strat Unit Description
Sandstone, quartz and lithic, m.g.-c.g., poorly sorted; sandstone, well-sorted, v.f.g.-m.g.; conglomerate, granule to pebble; mudstone; siltstone. Red, brown or purple with reduction spotting or mottling. Fluvial, large-scale cross-bedding and liesegang banding. Maximum deposition 1424±51 Ma (Rb-Sr).
GIS Code
M----p