Mineralization and Geology of the North Kimberley

Mineralization and Geology of the North Kimberley

GEOLOGICAL SURVEY OF WESTERN AUSTRALIA REPORT 85 PLATE 1 è00 è25 128^30' è50 è75 129^00' å00 å25 127^30' å50 å75 128^00' ê00 REFERENCE ä25 126^30' ä50 ä75 127^00' 13^30' 126^00' ä00 13^30' q Quartz veins, of various ages; youngest post-dates Devonian q æåKk KEEP INLET FORMATION: deltaic sandstone, pebbly sandstone, mudstone, and minor coal æW Weaber Group: sandstone, limestone, and minor conglomerate, shale, and siltstone ðê00 ðê00 æL Langfield Group: sandstone, limestone, shale, and siltstone æåKk çma Limestone reef complexes; oolitic, cyanobacterial, and stromatolitic limestones, and debris flow deposits; BASIN Group Kulshill marginal slope and basin facies of Famennian reef carbonate; includes PIKER HILLS FORMATION and NORTHERN BONAPARTE T I M O R S E A VIRGIN HILLS FORMATION Branch Banks æW çg Boulder, cobble, and pebble conglomerate; includes BARRAMUNDI CONGLOMERATE and STONY CREEK CONGLOMERATE çN Ningbing Group: limestone reef complexes; cyanobacterial limestone, limestone breccia, shale, and sandstone East Holothuria Reef EARLY æL çC Cockatoo Group: sandstone, conglomerate, and limestone; minor dolomite and siltstone çM Mahony Group: quartz sandstone, pebbly sandstone, and pebble to boulder conglomerate CARBONIFEROUS êéc Carlton Group: shallow marine sandstone, siltstone, shale, and stromatolitic dolomite Otway Bank Stewart Islands êG Goose Hole Group: sandstone, limestone, stromatolitic limestone, siltstone, and mudstone çma çg çN çM Troughton Passage êa Vesicular, amygdaloidal, and porphyritic basalt, and conglomerate and sandstone; minor agglomerate, sandstone, tuff, siltstone, laminated PHANEROZOIC DEVONIAN chert, and stromatolitic chert; includes ANTRIM PLATEAU VOLCANICS and LALLY CONGLOMERATE CANNING BASIN CANNING PALAEOZOIC çC d Dolerite dyke Cape Londonderry BASIN BONAPARTE SOUTHERN ALICE SPRINGS OROGENY (400Ê300 Ma) OROGENY (400Ê300 SPRINGS ALICE ìau Ultramafic rock Jones Island ORD BASIN ìL Albert Edward Group: siltstone, mudstone, sandstone, dolomite, and conglomerate ìKc ìKl MIDDLE Sandy Island CAMBRIANÊ êéc êG ìU Mount House Group: glacigene rocks; tillite, sandstone, siltstone, and minor stromatolitic dolomite Troughton Island ORDOVICIAN ðè75 ðè75 ìE Duerdin Group: siltstone, mudstone, sandstone, greywacke, dolomitic sandstone, dolomite, and tillite Cape Talbot ìf Sandstone, pebbly sandstone, conglomerate, siltstone, and mudstone; includes AHERN FORMATION and HELICOPTER SILTSTONE EARLY ìP Ruby Plains Group: sandstone, dolomite, stromatolitic dolomite, dolomitic mudstone, mudstone, and siltstone Lesueur Island êa CAMBRIAN ìlB Bow Hill lamprophyre dykes: olivineÊphlogopite lamprophyre and garnetÊphlogopite lamprophyre ORD and SOUTHERN ìkM Maude Creek kimberlitic dyke: mica peridotite BONAPARTE BASINS BONAPARTE ìiA Argyle lamproite pipe: volcaniclastic olivine lamproite intruded by olivineÊphlogopite lamproite dykes Sir Graham Moore Islands d ìau Scorpion Island KING LEOPOLD OROGENY ( c. 560 Ma) ìC Carr Boyd Group: sandstone, ferruginous sandstone, siltstone, and mudstone Eyre Reef ìs WADE CREEK FORMATION: sandstone, pebbly sandstone, conglomerate, siltstone, and mudstone Eclipse Archipelago Cape Rulhieres ìB Bastion Group: sandstone, siltstone, and mudstone Cape Bougainville Eclipse 3199 Red Island ìL ìu BUNGLE BUNGLE DOLOMITE: dolarenite, dololutite, and dolorudite, and chert breccia; commonly stromatolitic; minor dolomitic sandstone, Islands KOOLAMA siltstone, and mudstone, and stromatolitic chert Hat Point ìKl Geranium Harbour Curran Point BAY ìt MOUNT PARKER FORMATION: sandstone, pebbly sandstone, conglomerate, siltstone, mudstone, and breccia ìU ìE c. 610 MaÝâ ìcCy Yungul carbonatite: calciteÊapatiteÊanatase rock ANJO HILL Governor Islands ìdh 8735 Long Island Anjo Point 8727 HART DOLERITE: dolerite and granophyre Parry Harbour ìKp ìf ìP CREEK BASIN WOLFE PENTECOST SANDSTONE: sandstone, pebbly sandstone, siltstone, and shale Galley Point ìKe ELGEE SILTSTONE: siltstone, shale, stromatolitic dolomite, sandy dolomite, oolitic dolomite, and sandstone 3209 Cape Bernier 14^00' NEOPROTEROZOIC ìKw WARTON SANDSTONE: sandstone 14^00' FRESHWATER BAY Mary Island Louise Islands 3208 ðè50 8124 8501 ðè50 800Ê900 MaÝäÝå ìlB ìkM ìKc CARSON VOLCANICS: basalt, amygdaloidal basalt, basaltic volcaniclastic rock, sandstone, siltstone, and mudstone VANSITTART 8530 ANJO PENINSULAMacKenzie 8551 ìKl KING LEOPOLD SANDSTONE: sandstone and pebbly sandstone 10128 NAPIER 8502 Bertram Cove Anchorage IAN BAY King George Falls YAMPI OROGENY ( c. 1000 Ma) ìr REVOLVER CREEK FORMATION: sandstone, siltstone, and mudstone, and dolerite, basalt, and basaltic breccia; minor conglomerate ìx TEXAS DOWNS FORMATION: sandstone, pebbly sandstone, conglomerate, siltstone, mudstone, basalt, and basaltic breccia BAY BROOME c. 1200 MaÝä ìiA 10129 ìKc SEAFLOWER BAY ìk RED ROCK FORMATION: sandstone, feldspathic sandstone, pebbly sandstone, conglomerate, siltstone, mudstone, basalt, and basaltic breccia WEST Guy Point Bluff Point SEAPLANE BAY BAY 3221 ìa Undivided maficÊultramafic intrusions; may have interlayered metasedimentary rocks BAY RIVER BASIN VICTORIA ìgSg 8531 3222 c. 1200 MaÝâ ìC Fine- to coarse-grained biotite monzogranite, syenogranite, and granodiorite; biotite(Êhornblende) tonalite; even-textured to porphyritic; includes ìKl TIDEPOLE HILL McHALE GRANODIORITE, MABEL DOWNS TONALITE, SALLY DOWNS TONALITE, CORRARA GRANITE, KEVINS DAM MONZOGRANITE, 11667 KOONDOOLOO MONZOGRANITE, MAGOTTY SPRINGS MONZOGRANITE, SHEPHERDS BORE GRANITE, VIOLET VALLEY TONALITE, CARR BOYD BASIN CARR ìs Encounter Cove King Harman Point ìKc and WESLEY YARD MONZOGRANITE ADMIRALTY ìKl ATLANTIS BAY ìgSo Biotite-bearing norite, gabbronorite, gabbro, and tonalite with veins of intermediate hybrid rock; cut by abundant veins of granitoid rock; DEEP 8122 3223 8121 8492 Cape Whiskey includes WILD DOG CREEK GABBRO BAY 3206 c. 1500 MaÝâ ìB GULF PIM HILL RIVER 3205 3207 ìS Speewah Group: sandstone, feldspathic sandstone, siltstone, and mudstone; minor rhyolitic volcaniclastic sandstone ìam BASTION BASIN BASTION McIntosh, Armanda, and Spring Creek intrusions: layered maficÊultramafic intrusions; peridotite, troctolite, gabbro, olivine gabbro, PAULINE BAY CONE MOUNTAIN KALUMBURU ABORIGINAL RESERVE MESOPROTEROZOIC N 3316 te; RTO 8503 5245 ìKw ìu gabbronorite, magnetite gabbro, magnetite gabbronorite, magnetiteÊolivine gabbro, leucogabbro, leucogabbronorite, and anorthosi BA 3320 3988 10113 10114 5244 3319 includes LAMBOO ULTRAMAFICS 5242 3993 3315 ìay Borda Island RIVER 3318 Elsie Island Sally Malay intrusions: layered maficÊultramafic intrusions; peridotite, dunite, wehrlite, harzburgite, troctolite, olivine gabbro, olivine 5241 3999 ðè25 ìt ðè25 8508 8553 5243 OSMOND BASIN OSMOND gabbronorite, gabbronorite, and olivine leucogabbro 3323 3990 BARTON PLAIN 8507 8511 10539 8570 3998 Eric Island ìdw WOODWARD DOLERITE: fine- to medium-grained metadolerite 8284 3317 8297 OORARO HILL 8506 ìgf Hornblende-bearing rhyolite to dacite sheet-like intrusions ìdh 8552 8510 8509 10112 8283 3204 8494 3996 3321 ìcCy ìe KOONGIE PARK FORMATION: metamorphosed felsic volcanic and volcaniclastic rocks, metasedimentary rock, metabasalt, and hornfels; Middle 8295 8515 5246 3224 3322 8137 8512 SEPPELT 8493 Cape St Lambert locally migmatitic; minor chert, banded iron-formation, and carbonate; locally intimately veined by granitoid and gabbro Osborne Island POOMPANGALA HILL Kalumburu Community 8424 Creek 3987 RIVER 8399 J O S E P H B O N A P A R T E G U L F ìi WINNAMA FORMATION: low- to medium-grade, metamorphosed sandstone, siltstone, mudstone, basalt, dolerite, and carbonate ìKc MAMA HILL Andrew c. 1790 MaÝè ìdh 3225 4055 3292 ìas Springvale, Wilagee, and Foal Creek intrusions: layered maficÊultramafic intrusions; peridotite, troctolite, gabbro, olivine gabbro, olivine ìKc ìKl 8282 8555 RANGE 3294 SIR FREDERICK HILLS 3287 3285 gabbronorite, gabbronorite, leucogabbro, and anorthosite; minor chromitite layers 8120 3291 4959 Reveley Island 8490 3290 ìKp ìaa Panton intrusions: metamorphosed layered maficÊultramafic intrusions; dunite, wehrlite, lherzolite, peridotite, melagabbro, norite, gabbronorite, 8489 8556 8119 3203 8136 3227 4050 3288 gabbro, leucogabbro, anorthosite, ferrogabbro, and magnetite gabbro; minor chromitite layers Port 8281 Creek 8533 3286 3202 ìgPc Warrender 8516 8513 8571 3226 3201 4960 ìKe Fine- to coarse-grained biotite(Êhornblende) monzogranite, syenogranite, granodiorite, and tonalite; hyperstheneÊbiotiteÊhornblende granodiorite 8504 MOUNT CASUARINA and tonalite; even-textured to quartz-, plagioclase-, or K-feldspar-phyric; local rapakivi-like texture; includes AIRFIELD GRANODIORITE, 10340 8517 8514 ìKw DINNER CREEK TONALITE, NEVILLE GRANODIORITE, TOP WATER TONALITE, BEEFWOOD YARD GRANITE, CROOKED CREEK GRANITE, CHANEYS GRANITE, DYASONS GRANITE, LERIDA GRANITE, LONG HOLE GRANITE, MUSSEL CREEK GRANITE, PANDANUS YARD ìdh Beta 10516 3200 NS PUTAIRTA HILL 8425 GEORGE XAS ìKc BASIN KIMBERLEY ìr ìx MONZOGRANITE, NEIL CREEK MONZOGRANITE, SANDY DAM MONZOGRANITE, SURVEY CREEK MONZOGRANITE, TOGO MONZOGRANITE, 8147 Buckle Head Group Kimberley BASIN TE 8423 8491 5247 DOW TUMAGEE GRANITE, PAPERBARK GRANITE, GORDONS GORGE GRANITE, MULKERRINS GRANITE, MOUNT NYULASY GRANITE, ìKl RIVER 8144 4191 ðè00 ðè00 ìKl and MATCHBOX GRANITE PROTEROZOIC ìk REVOLVER CREEK BASIN REVOLVER 10522 RED ìgPo Biotite-bearing norite, gabbronorite, gabbro, quartz gabbro, and tonalite with veins of intermediate hybrid rock; cut by abundant veins of ROCK BASIN Carson River granitoid rock; includes TOBY GABBRO ROAD MOUNT LEEMING

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