0
2
Qhe
SAND
GRAVEL
Sand, red brown, aeolian, minor fine gravel
Strat Unit Name
Holocene aeolian sediments
Strat Unit Description
Undifferentiated Holocene aeolian sediments.
GIS Code
H---e
2
8
Qp\ca
CALCRETE
SANDSTONE
Sandstone, carbonate cemented. Minor ferricrete
Strat Unit Name
Pleistocene calcrete
Strat Unit Description
Undifferentiated Pleistocene calcrete.
GIS Code
I-----ca
8
28
Qhe
SAND
SILT
Sand, vf-f, silty with fragments, calcareous sandstone and minor semi indurated ferruginous sandstone fragments.
Strat Unit Name
Holocene aeolian sediments
Strat Unit Description
Undifferentiated Holocene aeolian sediments.
GIS Code
H---e
28
30
? Qhe
GRAVEL
CLAY (UNDIFF. ORIGIN)
Gravel, subangular - subrounded up to 2 cm, clayey, mostly mafic bedrock fragments with minor ferruginous sandstone.
Strat Unit Name
Holocene aeolian sediments
Strat Unit Description
Undifferentiated Holocene aeolian sediments.
GIS Code
H---e
30
36
? T\dw1
CLAY (REGOLITH)
SILT
Clay, silty with abundant fragments v. weathered ?feldspar. Minor ferruginous sandstone
Strat Unit Name
Tertiary deep weathering unit 1
Strat Unit Description
Tertiary kaolinisation in which relict granitic/gneissic texture is preserved. Based on Tin, Eateringinna 1:100 000.
GIS Code
ap----dw01
36
78
? T\dw1
SILT
CLAY (REGOLITH)
Silt, slightly clayey with +/- fragments, very weathered ?feldspar.
Strat Unit Name
Tertiary deep weathering unit 1
Strat Unit Description
Tertiary kaolinisation in which relict granitic/gneissic texture is preserved. Based on Tin, Eateringinna 1:100 000.
GIS Code
ap----dw01
78
88
Mrg
? PYROXENITE
? ANORTHOSITE
Pyroxenite/anorthosite, weathered, v. limonitic
Strat Unit Name
Giles Complex
Strat Unit Description
Layered mafic-ultramafic intrusions: gabbro, norite, peridotite, pyroxenite, anorthosite and troctolite. ~1085–1040 Ma.
GIS Code
M-rg
88
98
? YMb-w
GNEISS
Yellow brown to clear-grey, fine grained to medium grained quartzite with minor limonite, biotite and orthopyroxene and trace chlorite veins +/- rare epidote alteration.
Strat Unit Name
Wataru Gneiss
Strat Unit Description
Gneiss, granitic, medium-grained, with hornblende, biotite and lesser orthopyroxene and clinopyroxene. Amphibolite to granulite facies.
GIS Code
YMb--w
98
106
? YMb-w
GNEISS
Black, fine grained, orthopyroxene/biotite gneiss and clear-grey, fine grained to medium grained quartzite with minor chlorite veins and alteration? and minor black, very fine grained, pseudotachylite/igneous veins.
Strat Unit Name
Wataru Gneiss
Strat Unit Description
Gneiss, granitic, medium-grained, with hornblende, biotite and lesser orthopyroxene and clinopyroxene. Amphibolite to granulite facies.
GIS Code
YMb--w
106
114.55
Mrg1
? NORITE
? ANORTHOSITE
Grey/blue-green caorse grained plagioclase/pyroxene deformed norite with rare chlorite and possible bronzite? associated with pyroxene crystals. Late stage phenocrystic pyroxene (>6cm) seems to crosscut the foliations? Contains minor plagioclase rich laye
Strat Unit Name
Giles Complex unit 1
Strat Unit Description
Ultrabasic rocks: pyroxenite, picrite. Based on purple unit on WOODROFFE.
GIS Code
M-rg----01
114.55
128.2
M23
DOLERITE
? NORITE
Grey/Blue medium grained plagioclase/pyroxene gabbro dyke with rare chlorite and bronzite? Bronzite? and chlorite associated with pyroxene. Trace chlorite veining. Contains minor deformed norite as above.
Strat Unit Name
Mesoproterozoic unit 23
Strat Unit Description
Undifferentiated doleritic/gabbroic dykes of the Musgrave Block.
GIS Code
M-------23