0
2
Q
SILT
SAND
Red-bn silt, sand & calcrete
Strat Unit Name
Quaternary rocks
Strat Unit Description
Undifferentiated Quaternary rocks.
GIS Code
IH
2
18
Tbe
SAND
CLAY (UNDIFF. ORIGIN)
Off-wh fg-mg sands & clays, trace silt
Strat Unit Name
Poelpena Formation
Strat Unit Description
Sand, silt, clay, carbonaceous, micaceous, pyritic, frequent interbeds of dark brown lignite.
GIS Code
eI-ibe
18
188
J-o
MUDSTONE
SANDSTONE
18-112.4 sandstone, 112.4-188 interbedded mudstone, sandstone & coal; traces muscovite & pyrite, minor claystone
Strat Unit Name
Polda Formation
Strat Unit Description
Sand, clayey, grey, brown and black; silt, carbonaceous, grey; clay; lignite; coal. Sandstone, conglomerate in outcrop.
GIS Code
J----o
188
369
CP-o
MUDSTONE
CONGLOMERATE
Conglomeratic mudstone with thin interbeds of sandstone, conglomerate, claystone & siltstone
Strat Unit Name
Coolardie Formation
Strat Unit Description
Glacial, glacially derived sediments, lithic fragments, with cobbles, pebbles, and sand fragments of igneous, metamorphic and sedimentary origin.
GIS Code
CP---o