H0002 Version 4 H0003 Date_generated 17-Jan-17 H0004 Reporting_period_end_date 31-Jan-17 H0005 State NT H0100 Tenement_no EL24305 H0101 Tenement_holder Rio Tinto Exploration Pty Ltd H0102 Project_name Walker River H0106 Tenement_operator DPG Resources Australia Pty Ltd H0200 Start_date_of_data_acquisition 08-Aug-16 H0201 End_date_of_data_acquisition 05-Nov-16 H0202 Template_format DL1 H0203 Number_of_data_records 89 H0204 Date_of_metadata_update 17-Jan-17 H0300 Downhole_lithology_data_file WalkerGossan_2016_F_05_Lithologs.txt H0301 Location_data_file WalkerGossan_2016_F_02_Drillcollars.txt H0302 Downhole_lithology_data_file WalkerGossan_2016_F_05_Lithologs.txt H0307 Lithology_code_file WalkerGossan_2016_F_06_Lithologycodes.txt H0400 Drill_code RC DIA H0402 Description RC Reverse Circulation DIA Diamond Bit - Coring H1000 Hole_ID Depfrom Depto Drill_code Recovery Lithology Description H1001 metres metres % H1004 D WD#1 0 5 DIA SAP Red saprolite. Fe Mn nodules. D WD#1 5 32.5 DIA SLTST SLTSTone D WD#1 32.5 44 DIA SLTST Fe siliceous dolostone D WD#1 44 54.4 DIA SST Carbonaceous fine sandstone D WD#1 54.4 61.7 DIA SST SLTSTone to fine sandstone. D WD#1 61.7 103 DIA SLTST SLTSTone D WD#1 103 110 DIA SST Fine to medium sandstone D WD#1 110 127.4 DIA SST Fine to medium sandstone D WD#1 127.4 131.8 DIA SLTST Increasing dark carbonaceous component in SLTSTone. Minor fine sandstone D WD#1 131.8 147.8 DIA SLTST Alternating carbonaceous grey SLTSTones to black shales D WD#1 147.8 175 DIA SST Siliceous white sst. Dark ?carbonaceous fine sandstone beds and matrix to sst. D WD#1 175 206.7 DIA SST ?Arkosic green to pink fine to medium ?sandstone D WD#2 0 6.6 DIA SLTST Fe siliceous dolostone D WD#2 6.6 7.2 DIA CH Chert D WD#2 7.2 27.4 DIA SLTST Siliceous oxidised carbonate SLTSTone with minor fine sandstone D WD#2 27.4 29.6 DIA N/A Total core loss. D WD#2 29.6 82.5 DIA SST "SLTSTone to fine sandstone, soft sedimentary deformation and mud cracks." D WD#2 82.5 91.3 DIA SST "Fine sandstone, notable fracture related alt. fracturing related to core sub parallel structure." D WD#2 91.3 108.9 DIA SST Carbonaceous SLTSTone to fine sandstone. Graphitic bedding partings. Minor fine sandstone D WD#2 108.9 140 DIA SST Fine to medium sandstone D WD#2 140 145.1 DIA CGL Conglomerate D WD#3 0 0.8 DIA SLT Silt D WD#3 0.8 11.6 DIA SLTST Fe siliceous SLTSTone D WD#3 11.6 18.2 DIA SLTST Carbonaceous shale / SLTSTone D WD#3 18.2 22.4 DIA SST SLTSTone / fine sandstone and chert D WD#3 22.4 23.4 DIA SST Sandy grit / coarse sandstone D WD#3 23.4 24 DIA SLTST Fe ?SLTSTone D WD#3 24 28.2 DIA SST SLTSTone to fine sandstone D WD#3 28.2 32.7 DIA SST Grit / coarse sandstone D WD#3 32.7 32.9 DIA SST Clayey SLTSTone to fine sandstone D WD#3 32.9 33.9 DIA SST SLTSTone to fine sandstone D WD#3 33.9 41.3 DIA SST "SLTSTone with minor fine sandstone, oolitic beds." D WD#3 41.3 56.7 DIA SST SLTSTone with minor fine sandstone D WD#3 56.7 68.2 DIA SST SLTSTone with minor fine sandstone / shale beds. Sedimentary deformation D WD#3 68.2 72.3 DIA SST Siliceously altered sandstone D WD#3 72.3 91 DIA SST Carbonaceous SLTSTone / fine sandstone D WD#3 91 108.4 DIA SLTST Carbonaceous shale/SLTSTone D WD#3 108.4 114 DIA SST Carbonaceous SLTSTone/fine sandstone D WD#3 114 115.57 DIA SST Pitted sandstone D WD#3 115.57 115.77 DIA CGL Conglomerate D WD#3 115.77 117.9 DIA SLTST "Dark coloured sandstone beds, minor SLTSTone " D WD#3 117.9 129.1 DIA SST White sandstone D WD#4 0 3.7 DIA SLTST Fe siliceous dolostone. D WD#4 3.7 5.1 DIA SLTST Fe siliceous SLTSTone D WD#4 5.1 15.7 DIA SLTST "Carbonaceous silstone, minor fine sandstone" D WD#4 15.7 21.4 DIA SST Fine - med sandstone. Fe & Mn nodules. D WD#4 21.4 27.7 DIA SST SLTSTone / fine sandstone D WD#4 27.7 75.2 DIA SLTST SLTSTone with 30% fine-medium sandstone D WD#4 75.2 85 DIA SST Fine to medium sst with 40% silstone. D WD#4 85 99.62 DIA SST Carbonaceous SLTSTone / fine sandstone with graphite on bedding planes. Fine pyrite. D WD#4 99.62 102.3 DIA CGL Pebble-cobble conglomerate. Well rounded. Matrix is carbonaceous silt/mud. Fine pyrite and pyritic replacement of silt clasts. D WD#4 102.3 121.36 DIA SST "White, siliceous fine sandstone. Minor 1 cm beds of SLTSTone rip up clasts, weathered to yellow clay." D WD#4 121.36 127.7 DIA SST Fe - epidote altered ?arkose or Mafic intrusion. Basement. D WD#5 0 2.7 DIA SLT Red silt D WD#5 2.7 4.2 DIA SLTST "White to red, clayey, SLTSTone" D WD#5 4.2 7 DIA SLTST Fe SLTSTone with white clay D WD#5 7 46 DIA SST SLTSTone / fine sandstone. Ferruginous in places with liesegang type weathering. Fractures sub parallel to core axis or steep striking ~ 070 mag. D WD#5 46 61.8 DIA SLTST Alternating carbonaceous grey SLTSTones to black shales D WD#5 61.8 65 DIA SST Fine sandstone with Fe oxide in pits. Minor dark SLTSTone / fine sandstone and yellow clayey SLTSTone on bedding planes D WD#6 0 2 DIA SHL Light brown to purple soft weathered carbonaceous shales D WD#6 2 39.25 DIA SST "Red to white SLTSTone to fine sandstone, in part siliceous" D WD#6 39.25 39.4 DIA SST "Light brown to grey, SLTSTone / fine sandstone. Bedding at 15 deg core axis" D WD#6 39.4 40.6 DIA SST SLTSTone to fine sandstone with fault gouge D WD#6 40.6 72.5 DIA SST fine to medium sandstone D WD#6 72.5 93.2 DIA SST Carbonaceous SLTSTone / fine sandstone D WD#6 93.2 94.6 DIA SST "Fine sandstone, vuggy fe ox. " D WD#6 94.6 96.5 DIA CGL Conglomerate D WD#6 96.5 97.7 DIA SST White silicified sandstone. D WD#7 0 51.45 DIA SLTST Light grey / green SLTSTone with maroon Fe beds. D WD#7 51.45 54.95 DIA SLTST "Light grey, siliceous, leached vuggy SLTSTone" D WD#7 54.95 55.05 DIA SST Dark grey SLTSTone to fine sandstone D WD#7 55.05 56.75 DIA SLTST "Light grey, SLTSTone with soft sedimentary deformaton and rip up clasts (gypsum ), minor visible pyrite." D WD#7 56.75 57 DIA SST Sideritic altered SLTSTones / fine sandstones D WD#7 57 60.2 DIA SLTST "Dolostone, stromatolitic" D WD#7 60.2 60.85 DIA SLTST "Dolostone stromatolitic, vuggy with ?sideritic alteration" D WD#7 60.85 63.7 DIA SST "SLTSTone, fine sandstone, yellow altered and stylolites" D WD#7 63.7 64.5 DIA SST "Stromatolitic SLTSTone / fine sandstone, with yellow alteration and dark grey SLTSTone" D WD#7 64.5 66.58 DIA SLTST "Dark grey SLTSTone, stromatolites. Carbonaceous stylolites." D WD#7 66.58 67.3 DIA SST Light brown to grey-yellow altered SLTSTone / fine sandstone D WD#7 67.3 76.7 DIA SST "Light grey to dark grey, SLTSTone / fine sandstone with carbonaceous partings." D WD#7 76.7 77 DIA SST "SLTSTone / fine sandstone, leached, ?folded" D WD#7 77 78 DIA SST SLTSTone with fine sandstone and sideritic alteration D WD#7 78 82 DIA SST Light grey SLTSTone / fine sandstone with yellow alteration on fracture planes D WD#7 82 84.4 DIA SST SLTSTone / fine sandstone D WD#7 84.4 92.1 DIA SST SLTSTone / fine sandstone with oolitic beds D WD#7 92.1 117 DIA SST SLTSTone / fine sandstone D WD#7 117 148 DIA SST "SLTSTone / fine sandstone with sideritic alteration, increasing carbonaceous content down hole" D WD#7 148 166.9 DIA SST Carbonaceous SLTSTone / fine sandstone D WD#7 166.9 175 DIA SST Fine to medium sandstone EOF