LITHOLOGICAL LEGEND Colour Felsic Intermediate Mafic Ultramafic Sediment lt light FOO felsic (undiff.) IOO intermediate (undiff.) MOO mafic (undiff.) UOO ultramafic (undiff.) SAR arenite md medium FGO granite (undiff.) IDO diorite (undiff.) MGO gabbro (undiff.) UDO dunite (undiff.) SAK arkose dk dark FGD granodiorite IMO monzonite MGN norite UDA olivine adcumulate SBI banded iron fmn bk black FGA adamelite ISO syenite (undiff.) MDO dolerite (undiff.) UDM olivine mesocumulate SBS black shale bl blue FGT tonalite IDM microdiorite MBO basalt (undiff.) UDR olivine orthocumulate SCH chert br brown FGP pegmatite ISM microsyenite MBT tholeiitic basalt UXO pyroxenite (undiff.) SCS claystone cr cream FRO rhyolite IAO andesite (undiff.) MBH high mag basalt UPO peridotite (undiff.) SCG conglomerate gn green FRD rhyodacite IAT trachyandesite MTA mafic tuff UPK kimberlite SDM dolomite gy grey FSO felsite ITO trachyte UPS serpentinite SEV evaporite kh khaki FGP aplite ITP phonolite UKO komatiite SLI lignite mv mauve FPQ quartz porphyry IVO intermediate volcaniclastics ULP lamprophyre SLS limestone or orange FPF feldspar porphyry UCB carbonatite SML marl pi pink PRY porphyry (undiff.) UTC talc-chlorite SST sandtone pu purple FTA felsic tuff UTMC talc-magnesite-chlorite SSH shale rb red brn FDC dacite UATC amphibole-talc-chlorite SSI siltstone rd red FVO felsic volcaniclastics SMS mudstone tn tan SWK wacke wt white yw yellow Other Oxidation Grainsize Comments OAB amphibolite co completely oxidised vf very fine-grained damp "clays sticky, forms balls" OAG argillite so strongly oxidised fg fine-grained wet sample liquid sloppy clays OBX breccia po partially oxidised mg medium grained very wet "water flow, sample dominantly water" OGN gneiss wo weakly oxidised cg coarse grained OGA granulite uo unoxidised vc very coarse grained OHF hornfels OMB marble Mineralisation Style Hardness Descriptor OMI migmatite st stringer 1 Very Soft it intensely OMY mylonite ds disseminated 2 Soft st strongly OPH phyllite go gossanous 3 medium md moderately OPO porphyry (undiff.) bs blebs 4 Hard wk weakly OQZ quartzite mv massive 5 Very Hard OSH schist fl flooding Recovery % OSK skarn vn veined OSL slate bd bedded Veining OSM sample missing mx matrix 2 character mineral OQV quartz vein abbreviation and % Regolith Mineralisation Minerals SO soil general as arsenopyrite aa adularia go geothite qz quartz AL alluvium az azurite ab albite gt graphite se sericite CO colluvium ba barite ag agate gr grunerite sp serpentine SW sheetwash (mapping) bo bornite al alunite gy gypsum sd siderite LP lag/pisoliths cc chalcocite am amphibole he haematite si silica LT laterite cp chalcopyrite ad andalusite ha halite sl sillimanite LD lateritic duricrut cr chromite an anhydrite hb hornblende se sphene LG lateritic gravels cb cobaltite ak ankerite im ilmenite sr staurolite LR lateritic residuum cu copper ap anthophyllite js jarpsite tc talc MZ mottled zone cv covellite ao anorthite ka kaolin tm tourmaline RCY leached clay cr chrysocolla at apatite ky kyanite tr tremolite PP plasmic horizon ci cuprite bt biotite lx leucoxene wf wolframite PA arenose zone (granite) dd diamond ca calcite lg lignite zc zircon RSP saprolite gn galena cb carbonate li limonite RSU upper saprolite au gold cd chalcedony mh maghemite RSL lower saprolite mt magnetite ch chrysoprase ms magnesite RSR saprock ml malachite cl chlorite mt magnetite RSG saprock (grus.. ma marcasite cy clay mn manganese granitic origin) mo molybdenite cd cordierite mg manganite SA sand (other) mz monazite cs chrysotile mi mica AS Aeolian sand pn pentiandite cm cummingtonite mu muscovite CL clay (eg Tert) po pyrrhotite di diopside ol olivine PC playa clay py pyrite dm dolomite or orthoclase EV evaporites ru rutile em electrum ph phlogopite HP hardpan (trans.cem) sh scheelite ep epidote pl plagioclase FC ferricrete (FeO repl) ag silver fp feldspar pi prhenite SC silcrete sp sphalerite fs fuchsite ps psilomelane CC calcrete pedogenic sb stibnite ga garnet pr pyrolusite th tetrahedrite gl glauconite px pyroxene Texture al acicular cc concretionary fo foliated li lithic pi pisolitic sw stockwork ag agglomerate ct contorted fr fractured lm laminated pk poikilitic sa subangular ap amorphous cv convolute fm fragmental lu leuocratic pm polymictic sr subrounded am amygdaloidal cr crenulated gn gneissic ln lineated po porphyritic su subhedral as anastomosing cb cross-bedded gs gossanous mv massive pb porphyroblastic sg sugary an angular cf crutiform gd graded bedding ml melanocratic py pyroclastic tb tabular ah anhedral cs crystal gb granoblatic me mesocratic ra radiating tl translucent at aphanitic cx crystalline gp granophyric mm migmatitic rc recrystallied tf tuffaceous ba banded cu cumulate gr granular mc monomictic rd rounded un uniform bd bedded df deformed gv gravelly mo mottled rb rubbly vr variolitic ba bladed ds disseminated gs greasy my mylonitic sy sandy vv varved bl bleached dx detextured ht heterogeneous nb nebulitic sc schistose vn veined by blocky el elongated ho homogeneous no nodular sh sheared vs vesicular bu boudinaged eq equigranular hc hyaloclastic oc ocellar si silicious vt vitreous bx brecciated eu euhedral il inclusions oo oolitic sl slaty vo volcanic cm cemented fe ferruginous in indurated ol opaline sk slickensided vc volcaniclastic ct clastic fb fibrous ib interbedded op ophitic so soft vg vuggy cy clayey fs fissile is interstitial pl perlitic sd sorted wx waxy co conchoidal fg flaggy jo jointed pv pervasive sx spinifex wd weathered cf colloform fb flow banded kn knotted pw pillowed sp spotted we welded