0
6
Qpe
SAND
GRIT
Fine grained well consolidated red aeolian sand with grits + minor clay and rock fragments.
Strat Unit Name
Pleistocene aeolian sediments
Strat Unit Description
Undifferentiated Pleistocene aeolian sediments.
GIS Code
I---e
6
12
T\po1
PORCELLANITE
GRIT
Fine grained well consolidated red aeolian sand with grits + minor clay, CaCO3 and rock fragments.
Strat Unit Name
Tertiary porcellanite unit 1
Strat Unit Description
Tertiary white, vitreous, translucent silicified claystone (porcellanite). Based on Tap, Eateringinna 1:100 000.
GIS Code
ap----po01
12
20
M23
DOLERITE
ANORTHOSITE
Very fine grained dolerite dyke with blue-black fine-medium grained weathered anorthosite and tan-brown clay (product of weathereing)
Strat Unit Name
Mesoproterozoic unit 23
Strat Unit Description
Undifferentiated doleritic/gabbroic dykes of the Musgrave Block.
GIS Code
M-------23
20
40
Mrg3
ANORTHOSITE
Fresh blue-black very medium grained feldspar/pyroxene anorthosite with trace pyrite and chlorite alteration. Very coarse grained feldpsar crystals.
Strat Unit Name
Giles Complex unit 3
Strat Unit Description
Anorthosite. Based on plum-coloured unit on MANN and dark red unit on Davies 1-mile.
GIS Code
M-rg----03
40
65
Mrg2
? NORITE
Blue/grey with a minor green, tinge well foliated medium-very coarse grained plagioclase(65%)/pyroxene(35%) mafic? with minor psuedotachylite veining + trace disseminated pyrite, chlorite veining.
Strat Unit Name
Giles Complex unit 2
Strat Unit Description
Basic rocks: norite, gabbro, anorthosite, troctolite; norite dykes. Based on pale mauve units on WOODROFFE.
GIS Code
M-rg----02
65
85
? Mp
GNEISS
Pink-green/grey medium-coarse grained feldspar/quartz/biotite granite gneiss with a strong quartz/biotite foliation and red rock alteration. Possible trace chlorite alteration.
Strat Unit Name
Pitjantjatjara Supersuite
Strat Unit Description
Alkali granite to diorite, primarily quartz monzonite, with orthopyroxene, clinopyroxene, hornblende or biotite, commonly porphyritic, foliated to massive. A to I-type, ~1220-1120 Ma, syn- and post-Musgravian Orogeny.
GIS Code
M-p