Code	Description
AB	Alteration Breccia
AM	Massive sulphide
BM	High-mag Basalt
BP	Picritic Basalt
BS	Spilitic Basalt
BT	Tholeiitic Basalt
BV	Undifferentiated Mafic Etrusive
BX	NULL
C	cover
CC	Calcrete
CE	Evaporites
CF	Massive Ironstone
CH	Chert
CI	BIF
CP	Pisolites
CU	Undifferentiated - Chemical Sediment
CZ	Phosphorites
FC	Dacite
FE	Ferricrete
FO	Rhyodacite
FR	Rhyolite
FU	Undifferentiated - Acid Extrusive
FZ	Fault Zone
GA	Alkali feldspar granite
GD	Granodiorite
GG	Granite
GL	Aplite
GM	Monzogranite
GN	Gossan
GP	Porphyry
GS	Syenogranite
GT	Tonalite
GU	Undifferentiated - Acid Intrusive
GW	Greywacke/Wacke
GZ	Pegmatite
HP	Hardpan
HS	Skarn
HU	Undifferentiated - Hydrothermal
HY	Mylonite
ID	Diorite
II	Undifferentiated - Intermediate Intrusive
IM	Monzonite
IP	Porphyry
IS	Syenite
IT	Trachyte
IU	Undifferentiated Intermediate Igneous
IV	Andesite
IY	Trachy-andesite
LA	Lamprophyre
LC	Carbonatite
LK	Kimberlite
LL	Lamproite
LM	Laterite - Mottled Zone
LP	Laterite - Pisolites
LS	Laterite - Saprolite
LT	Laterite
LU	Undifferentiated - Lamprophyre
MA	Amphibolite - Unknown Protolith
MB	Marble
MG	Gneiss - Unknown Original Rock
MH	Hornfels
MI	Migmatite
ML	Slate
MN	Granulite
MS	Schist
MU	Metamorphic rock - undivided
MY	Phyllite
NR	No recognisable lithology
OA	Anorthosite
OB	Gabbronorite
OD	Dolerite
OG	Gabbro
OM	Magnetitite
ON	Norite
OT	Troctolite
OU	Undifferentiated - Mafic
PA	Amphibolite  - Sedimentary Protolith
PB	Metacarbonate/marble
PE	Semipelite
PG	Gneiss - Sedimentary Origin
PH	Hornfels
PL	Slate
PM	Psammite
PN	Granulite
PP	Pelite
PQ	Quartzite
PS	Schist
PX	Calcsilicate
QL	Laminated Qtz
QT	quartz
RA	Amphibolite - Igneous Protolith
RF	Metafelsic
RG	Gneiss
RM	Metamafic
RN	Granulite
RS	Schist
RU	Meta-ultramafic
SB	Breccia
SC	Conglomerate
SD	Dolomite
SE	Sericitic sheared
SF	Interbedded - mud & silt
SK	Coal
SL	Limestone 
SM	Mudstone
SN	Interbedded - sand & silt
SR	Silcrete
SS	Sandstone
ST	Siltstone
SU	Undifferentiated - Sediment
TB	Tertiary? From Tanami database
UB	Basaltic Komatiite
UC	Unconsolidated Clay
UD	Dunite
UG	Unconsolidated Gravel
UH	Hornblendeite
UK	Komatiite
UM	Uncolsolidated Mud
UP	Peridotite
US	Unconsoildated Sand
USA	Alluvium
USC	Colluvium
UU	Undifferentiated Ultramafic
UX	Pyroxenite
VN	Vein
WB	Backfill
WC	cavity
WL	Lost Core
WP	Stockpile
WS	Stope
WT	Tailings
WW	Mullock/Waste
XX	Contamination
YC	Cataclasite
YM	Mylonite