0
3
Qpr4
SOIL
CLAY (UNDIFF. ORIGIN)
Red-bn clay-rich soil & calcrete
Strat Unit Name
Pleistocene regolith/colluvial unit 4
Strat Unit Description
Pleistocene gravel, clay, silt and sand with soft carbonate, overlying nodular/tabular calcrete.
GIS Code
I---r---04
3
36
? Tig
SAND
CLAY (UNDIFF. ORIGIN)
Sand, clay, grit & silcrete
Strat Unit Name
Garford Formation
Strat Unit Description
Mudstone, carbonate, stromatolitic, oncolitic and oolitic, gastropods, minor sandstone and grit horizons. Upward change from argillaceous to carbonate mudstone. Lacustrine to flood plain.
GIS Code
eI-i-g
36
62
KTa\dw
REGOLITH
Weath basement: clays, sand, basement fragments
Strat Unit Name
Cretaceous-Paleocene deep weathering
Strat Unit Description
Undifferentiated deep weathering.
GIS Code
Ka----dw
62
90
Yhdw
QUARTZITE
Cg quartzite
Strat Unit Name
Warrow Quartzite
Strat Unit Description
Quartzite, massive to flaggy and micaceous; pelitic schist; quartz-pebble conglomerate; minor calc-silicate gneiss and marble.
GIS Code
Y-hd-w
90
110.6
AYi
GNEISS
Retrograded graph-biot-qtz-fsp microgneiss (metasediment)
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
110.6
115.25
? Ll
GRANITE
Mg poorly foliated eq qtz-fsp-chl granite
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
115.25
124.63
AYi
SCHIST
AMPHIBOLITE
Fg graph-chl schist w/ qtzt stringers; veined amphibolite
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
124.63
126.05
? Ll
GRANITE
Mg poorly foliated qtz-fsp-?biot/hbl granite
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
126.05
139.9
AYi
METAMORPHIC ROCK
Graphitic & chloritic metagreywackes;sericitised amphibolite
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
139.9
142.05
? Ll
GRANITE
Fg-mg poorly foliated qtz-fsp-biot granite
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
142.05
154
? AYi
SCHIST
GRANITE
Schist, mixed metasediments & granite; andesite 145-146m
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
154
155.88
? Ll
GRANITE
Mg unfoliated qtz fsp granite, rare pegmatite segregations
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
155.88
161.9
AYi
GREYWACKE
SCHIST
Graphitic greywacke, graphite-?fsp-chl-(?epid) schist
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
161.9
164.7
? Ll
GRANITE
Mg unfoliated qtz-fsp granite
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
164.7
169.15
AYi
METAMORPHIC ROCK
SCHIST
Graphitic & amphibolitic metagreywacke & graphite schist
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
169.15
171.05
? Ll
GRANITE
Mg-cg qtz-fsp-biot granite, almost pegmatitic in places
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
171.05
171.97
AYi
SCHIST
Fg amphibolitic schist/hornfels
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
171.97
173.22
? Ll
GRANITE
Granite as for 169.15-171.05
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
173.22
182.47
AYi
SCHIST
Fg gy-gn amph-chl-?qtz-?fsp-?biot schist
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
182.47
183.56
? Ll
GRANITE
Fg-mg qtz-fsp-?biot granite with traces of sediments
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
183.56
235.4
AYi
SCHIST
Retrograded graph-ser-chl-biot-amph schists, brecc & alt
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
235.4
240.85
? Ll
GRANITE
Mg qtz-fsp-(biot) granite
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
240.85
287.15
AYi
METAMORPHIC ROCK
Graphite schist, amph metapelite, amphibolite, minor granite
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
287.15
296.4
? Mta
ANDESITE
Leucocratic andesite; veins of py, ser, chl, adularia
Strat Unit Name
Gawler Range Volcanics
Strat Unit Description
Dacite, rhyodacite and rhyolite lava; basalt to andesite, tholeiitic; ignimbrite; tuff; volcanic breccia. A to I-type, 1592-1591 Ma.
GIS Code
M-ta
296.4
301.6
AYi
BRECCIA (UNDIFF. ORIGIN)
Graphitic breccia: qtzose metased frags, graph/py/chl matrix
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
301.6
308.45
? Ll
GRANITE
Altered unfoliated fsp-qtz granite with schist ?xenoliths
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
308.45
319.75
AYi
AMPHIBOLITE
Fg dk gn foliated plag amphibolite, minor granite
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i
319.75
331.42
? Ll
GRANITE
Cg weakly foliated qtz-fsp granite/pegmatite; amph xenoliths
Strat Unit Name
Lincoln Complex
Strat Unit Description
Gneissic granite; granodiorite; adamellite. Veins of pegmatite and aplite.
GIS Code
L-l
331.42
340.3
AYi
METAMORPHIC ROCK
Amphibolitic metasediment/amphibolite, part veined & altered
Strat Unit Name
Middleback Subgroup
Strat Unit Description
Jaspilite; quartzite; gneiss; quartz-mica schist; dolomitic marble.
GIS Code
AY-i