0
58
TQ
CLAY (UNDIFF. ORIGIN)
SAND
Med.-coarse gr. subang-subrounded sands over clay with grits
Strat Unit Name
Tertiary-Pleistocene rocks
Strat Unit Description
Undifferentiated Tertiary to Pleistocene rocks.
GIS Code
aI
58
121.6
Nhwst
SANDSTONE
SILTSTONE
Silt and siltstone over fine gr. sandstone
Strat Unit Name
Tent Hill Formation
Strat Unit Description
Shale; sandstone; quartzite. White, red and purple, slumped, laminated.
GIS Code
N-hwst
121.6
265.33
Nhunt
SILTSTONE
SILT
Siltstone, silt, dolomite, stromatolitic limestone, fine gr. sand, dolomite breccia
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
265.33
270.3
Nxcae
MAFIC EXTRUSIVE
Fine-med. gr. nonvesicular volcanics
Strat Unit Name
Beda Basalt
Strat Unit Description
Basalt, amygdaloidal to massive, tholeiitic, subaerial, flows 1-30m thick, altered by chlorite, sericite, hematite, amphibole, epidote and K-feldspar.
GIS Code
N-xcae
270.3
292.5
Nxcak
SANDSTONE
CONGLOMERATE
Fine-med. gr. sandstone and conglomerate of sdst and GRV
Strat Unit Name
Backy Point Formation
Strat Unit Description
Sandstone; conglomerate, pink to red, locally haematitic.
GIS Code
N-xcak