0
4
TQ
LOAM
CLAY (UNDIFF. ORIGIN)
Clayey loam with silt and sand
Strat Unit Name
Tertiary-Pleistocene rocks
Strat Unit Description
Undifferentiated Tertiary to Pleistocene rocks.
GIS Code
aI
4
108
Nhunt
SHALE
SILTSTONE
Black shale with carbonate, graphite, fspar, qtz and minor pyrite over dolomitic siltstone
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
108
112
Nxcak
CONGLOMERATE
Conglomerate with well rounded pebbles of BIF, sandstone, qtzt, qtz
Strat Unit Name
Backy Point Formation
Strat Unit Description
Sandstone; conglomerate, pink to red, locally haematitic.
GIS Code
N-xcak
112
143.2
M-p
QUARTZITE
SANDSTONE
Fine gr. hematitic sandstone over siltstone over feldspathic quartzite
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