0
12
TQ
SAND
CLAY (UNDIFF. ORIGIN)
Red-br. clayey sands
Strat Unit Name
Tertiary-Pleistocene rocks
Strat Unit Description
Undifferentiated Tertiary to Pleistocene rocks.
GIS Code
aI
12
84.21
Nst
SANDSTONE
SAND
Brown and green fine and med. gr. partly calcareous and lithic sandstone, fine sand, intraformational carbonate conglom.
Strat Unit Name
Tent Hill Formation
Strat Unit Description
Shale; sandstone; quartzite. White, red and purple, slumped, laminated.
GIS Code
N-hwst
84.21
208.5
Nnt
SILT
LIMESTONE
Partly calc. & pyritic silt showing cross bed., slumping & ripples, stylolitic carbonate, calcarenite, basal volc grit
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
208.5
237.12
Nae
MAFIC EXTRUSIVE
Partly vesicular fine gr. basic volcanics with calcite, epidote and chlorite infillings
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-wcae