0
5.5
Qa
SAND
CLAY (UNDIFF. ORIGIN)
Clayey & gypsiferous sands
Strat Unit Name
Quaternary alluvial/fluvial sediments
Strat Unit Description
Undifferentiated Quaternary alluvial/fluvial sediments.
GIS Code
IH--a
5.5
21.1
? Qpav
CLAY (UNDIFF. ORIGIN)
SAND
Brown clays, locally mottled; minor sand
Strat Unit Name
Avondale Clay
Strat Unit Description
Clay, grey; sandy clay, with vertical mottling.
GIS Code
I---av
21.1
131
Topn
CLAY (UNDIFF. ORIGIN)
SAND
Clay & sand, locally carbonaceous & pyritic; silty sandstone at top (?silcrete)
Strat Unit Name
Namba Formation
Strat Unit Description
Sand, fine to medium-grained, poorly sorted, angular, silt, thin dolomite, oolitic dolomite interbeds. Shallow, brackish to fresh water lakes.
GIS Code
op---n
131
200
Taee
SANDSTONE
SILTSTONE
Fine white quartz sandstone & silty sandstone, carbonaceous & pyritic; carbonaceous micaceous siltstone at top; no sample recovery 190-200m, suspected coal this interval
Strat Unit Name
Eyre Formation
Strat Unit Description
Pyritic, carbonaceous sand, grain-size ranges from silt to small cobble, with beds of lignite and clay. Clays are montmorillonite, kaolinite and illite. Braided streams.
GIS Code
ae---e
200
307
Krmo
SILTSTONE
SAND
Grey sandy carbonaceous pyritic siltstone with shelly fossil fragments to 254m, then massive micaceous pyritic siltstone & minor thin fine quartz sandstone interbeds; shelly fossil fragments including ammonoids
Strat Unit Name
Oodnadatta Formation
Strat Unit Description
Claystone and siltstone, interbedded; with fine-grained sandstone, calcareous and ferruginous concretions; limestone with celestite and barite veins.
GIS Code
K--rmo
307
316
Krmc
SANDSTONE
MUDSTONE
Grey pebbly carbonaceous quartz sandstone & minor interbedded mudstone
Strat Unit Name
Coorikiana Sandstone
Strat Unit Description
Sandstone, very fine to fine-grained, calcareous, clayey; sandy siltstone; minor siltstone.
GIS Code
K--rmc
316
511.6
Krmb
MUDSTONE
SANDSTONE
Grey silty & sandy mudstone, silty sandstone, shale, claystone, minor local limestone; carbonaceous, pyritic; bivalve, echinoid, gastropod fossils
Strat Unit Name
Bulldog Shale
Strat Unit Description
Mudstone, grey, bioturbated, fossiliferous and shaly; minor silt to very fine-grained sandstone intervals.
GIS Code
K--rmb
511.6
567
K-c
SANDSTONE
SILTSTONE
Transition zone: grey micaceous feldspathic silty sandstone, locally pebbly & coarse, above grey micaceous siltstone & interbedded silty part calcareous sandstone; shelly fossils
Strat Unit Name
Cadna-owie Formation
Strat Unit Description
Sandstone, fine-grained, with coarse-grained sandstone beds, and pale grey siltstone, minor conglomerate.
GIS Code
K----c
567
602
JK-a
SANDSTONE
SILTSTONE
Grey-green silty sandstone with minor interbedded siltstone, micaceous & carbonaceous, above medium to coarse quartz sandstone with interbedded shale/siltstone & thin intraformational conglomerates; coal fragments
Strat Unit Name
Algebuckina Sandstone
Strat Unit Description
Sandstone, fine to coarse-grained, with granule and pebble layers, and shale intraclasts. Cross-bedded.
GIS Code
JK---a
602
750
? Erf
SANDSTONE
SHALE
Redbed sequence: red-brown to white fine to medium quartz sandstone, minor interbedded red & green shales, local intraformational (shale-flake) conglomerates; crossbeds, scour & fill structs; locally calcareous; palaeosols 710m & ?726m
Strat Unit Name
Lake Frome Group
Strat Unit Description
Sandstone; siltstone; shale; limestone; conglomerate.
GIS Code
E-rf