AIRBORNE GEOPHYSICAL DATA DVD-ROM Survey name: EL32/2010, EL46/2010, EL22/2010, EL50/2008N, EL50/2008S Location: Tullah, Tasmania, Australia Job No.: AA1362 Client: Yunnan Tin Australia TDK Resources Pty Ltd Survey date: December 10th, 2012 to February 7th, 2013 Survey company name: Geotech Ltd. Total line-km: 2334.4 Archive creation date: April, 2013 Aircraft type: Aerospatiale A-star 350 B3 VH-VTX Base of operation: Tullah, Tasmania, Australia Airborne Magnetometer Model: Geometrics Type: Cesium-vapour Sample Interval: 10 Hz (0.1 seconds); 2-3 metres Sensitivity: 0.02 nT Mount: Towed bird, 10 metres below helicopter Magnetic sensor clearance: 100 metres Airborne EM System: Geotech Time Domain EM (VTEMplus) system Type: VTEMplus, serial number 24 Number of channels: 36 (0.083 - 10.667 ms) Sample Interval: 10 Hz (0.1 seconds); 2-3 metres Mount: Towed ring, 35 metres below helicopter Transmitter Loop diameter: 26 m Transmitter Number of turns: 4 Current: 187 A Peak Dipole moment: 397,135 nIA Pulse width: 7.34 ms Receiver X Coil diameter: 0.32 m Number of turns: 245 Effective coil area: 19.69 m2 Z-Coil coil diameter: 1.2 m Number of turns: 100 Effective coil area: 113.04 m2 Actual average EM bird terrain clearance: 73 metres Mean terrain clearance: 113 m above ground Navigation system: NovAtel’s WAAS (Wide Area Augmentation System) enabled GPS receiver Radar altimeter: Terra TRA3000/TRI-40 Survey block Traverse Line spacing (m) Area (Km2) Planned Actual Line-km Flight direction Line numbers Line-km EL32/2010 Traverse: 100 56 627 577.3 N 90° E / N 270° E L1000 – L1500 Tie: 1000 56.7 N 0° E / N 180° E T1900 – L1980 EL46/2010 Traverse: 100 61 700 644.6 N 90° E / N 270° E L2000 – L3200 Tie: 1000 67.7 N 0° E / N 180° E T3800 – L3890 EL22/2010 Traverse: 100 21 235 219.6 N 90° E / N 270° E L4000 – L4700 Tie: 1000 21.3 N 0° E / N 180° E T4800 – L4830 EL50/2008N Traverse: 100 57 627 585.2 N 90° E / N 270° E L5000 – L6790 Tie: 1000 57.4 N 0° E / N 180° E T6800 – L6840 EL50/2008S Traverse: 100 9 102 95.4 N 90° E / N 270° E L7000 – L7300 Tie: 1000 9.2 N 0° E / N 180° E T7800 – L7820 TOTAL 204 2291 2334.4 AIRBORNE GEOPHYSICAL DIGITAL ARCHIVES • Two copies of the data and maps on DVD were prepared to accompany the report. Each DVD contains a digital file of the line data in GDB Geosoft Montaj format as well as the maps in Geosoft Montaj Map and PDF format. • DVD structure. There are two (2) main directories; Data contains databases, grids and maps, as described below. Report contains a copy of the report and appendices in PDF format. Databases in Geosoft GDB format; Channel name Units Description X_UTM: metres UTM Easting WGS84 Zone 55 South Y_UTM: metres UTM Northing WGS84 Zone 55 South X_MGA: metres Map Grid of Australia zone 55 - GDA94 Y_MGA: metres Map Grid of Australia zone 55 - GDA94 Z: metres GPS antenna elevation (above Geoid) Longitude: Decimal Degrees WGS 84 Longitude data Latitude: Decimal Degrees WGS 84 Latitude data Radar: metres helicopter terrain clearance from radar altimeter Radarb: metres Calculated EM bird terrain clearance from radar altimeter DEM: metres Digital Elevation Model Gtime: Seconds of the day GPS time Mag1: nT Raw Total Magnetic field data Basemag: nT Magnetic diurnal variation data TMI2: nT Diurnal corrected Total Magnetic field data TMI3: nT Levelled Total Magnetic field data CVG_RTP nT/m Calculated Vertical Derivative of Reduced To Pole of TMI TMI_RTP nT Reduced To Pole of TMI SFz[13]: pV/(A*m4) Z dB/dt 0.083 millisecond time channel SFz[14]: pV/(A*m4) Z dB/dt 0.096 millisecond time channel SFz[15]: pV/(A*m4) Z dB/dt 0.110 millisecond time channel SFz[16]: pV/(A*m4) Z dB/dt 0.126 millisecond time channel SFz[17]: pV/(A*m4) Z dB/dt 0.145 millisecond time channel SFz[18]: pV/(A*m4) Z dB/dt 0.167 millisecond time channel SFz[19]: pV/(A*m4) Z dB/dt 0.192 millisecond time channel SFz[20]: pV/(A*m4) Z dB/dt 0.220 millisecond time channel SFz[21]: pV/(A*m4) Z dB/dt 0.253 millisecond time channel SFz[22]: pV/(A*m4) Z dB/dt 0.290 millisecond time channel SFz[23]: pV/(A*m4) Z dB/dt 0.333 millisecond time channel SFz[24]: pV/(A*m4) Z dB/dt 0.383 millisecond time channel SFz[25]: pV/(A*m4) Z dB/dt 0.440 millisecond time channel SFz[26]: pV/(A*m4) Z dB/dt 0.505 millisecond time channel SFz[27]: pV/(A*m4) Z dB/dt 0.580 millisecond time channel SFz[28]: pV/(A*m4) Z dB/dt 0.667 millisecond time channel SFz[29]: pV/(A*m4) Z dB/dt 0.766 millisecond time channel SFz[30]: pV/(A*m4) Z dB/dt 0.880 millisecond time channel SFz[31]: pV/(A*m4) Z dB/dt 1.010 millisecond time channel SFz[32]: pV/(A*m4) Z dB/dt 1.161 millisecond time channel SFz[33]: pV/(A*m4) Z dB/dt 1.333 millisecond time channel SFz[34]: pV/(A*m4) Z dB/dt 1.531 millisecond time channel SFz[35]: pV/(A*m4) Z dB/dt 1.760 millisecond time channel SFz[36]: pV/(A*m4) Z dB/dt 2.021 millisecond time channel SFz[37]: pV/(A*m4) Z dB/dt 2.323 millisecond time channel SFz[38]: pV/(A*m4) Z dB/dt 2.667 millisecond time channel SFz[39]: pV/(A*m4) Z dB/dt 3.063 millisecond time channel SFz[40]: pV/(A*m4) Z dB/dt 3.521 millisecond time channel SFz[41]: pV/(A*m4) Z dB/dt 4.042 millisecond time channel SFz[42]: pV/(A*m4) Z dB/dt 4.641 millisecond time channel SFz[43]: pV/(A*m4) Z dB/dt 5.333 millisecond time channel SFz[44]: pV/(A*m4) Z dB/dt 6.125 millisecond time channel SFz[45]: pV/(A*m4) Z dB/dt 7.036 millisecond time channel SFz[46]: pV/(A*m4) Z dB/dt 8.083 millisecond time channel SFz[47]: pV/(A*m4) Z dB/dt 9.286 millisecond time channel SFz[48]: pV/(A*m4) Z dB/dt 10.667 millisecond time channel BFz (pV*ms)/(A*m4) Z B-Field data for time channels 13 to 48 NchanBF Latest time channels of TAU calculation NchanSF Latest time channels of TAU calculation TauBF milliseconds Time constant B-Field TauSF milliseconds Time constant dB/dt PLM 50 Hz power line monitor Off-Time Decay Sampling Scheme VTEM Decay Sampling Scheme Index Middle Start End Milliseconds 13 0.083 0.078 0.090 14 0.096 0.090 0.103 15 0.110 0.103 0.118 16 0.126 0.118 0.136 17 0.145 0.136 0.156 18 0.167 0.156 0.179 19 0.192 0.179 0.206 20 0.220 0.206 0.236 21 0.253 0.236 0.271 22 0.290 0.271 0.312 23 0.333 0.312 0.358 24 0.383 0.358 0.411 25 0.440 0.411 0.472 26 0.505 0.472 0.543 27 0.580 0.543 0.623 28 0.667 0.623 0.716 29 0.766 0.716 0.823 30 0.880 0.823 0.945 31 1.010 0.945 1.086 32 1.161 1.086 1.247 33 1.333 1.247 1.432 34 1.531 1.432 1.646 35 1.760 1.646 1.891 36 2.021 1.891 2.172 37 2.323 2.172 2.495 38 2.667 2.495 2.865 39 3.063 2.865 3.292 40 3.521 3.292 3.781 41 4.042 3.781 4.341 42 4.641 4.341 4.987 43 5.333 4.987 5.729 44 6.125 5.729 6.581 45 7.036 6.581 7.560 46 8.083 7.560 8.685 47 9.286 8.685 9.977 48 10.667 9.977 11.458 • Database of the VTEM Waveform “AA1362_waveform_final.gdb” in Geosoft GDB and XYZ format, containing the following channels: Time: Sampling rate interval, 5.2083 microseconds Tx_Curr: Output current of the transmitter (Amps) • Grids in Geosoft GRD, GeoTIFF and ER Mapper format, as follows: bn_BFz26: B-Field Z Component Channel 26 (Time Gate 0.505 ms) bn_BFz36: B-Field Z Component Channel 36 (Time Gate 2.021 ms) bn_DEM: Digital Elevation Model (metres) bn_TMI_RTP: Reduced To Pole TMI (nT) bn_CVG_RTP: Calculated Vertical Gradient of Reduced to Pole TMI (nT/m) bn_SFz17: dB/dt Z Component Channel 17 (Time Gate 0.145 ms) bn_SFz18: dB/dt Z Component Channel 18 (Time Gate 0.167 ms) bn_SFz26: dB/dt Z Component Channel 26 (Time Gate 0.505 ms) bn_SFz27: dB/dt Z Component Channel 27 (Time Gate 0.580 ms) bn_SFz32: dB/dt Z Component Channel 32 (Time Gate 1.161 ms) bn_SFz35: dB/dt Z Component Channel 35 (Time Gate 1.760 ms) bn_SFz37: dB/dt Z Component Channel 37 (Time Gate 2.323 ms) bn_SFz45: dB/dt Z Component Channel 45 (Time Gate 7.036 ms) bn_SFxFF23: dB/dt X Component Fraser Filter Channel 23 (Time Gate 0.333 ms) bn_SFxFF24: dB/dt X Component Fraser Filter Channel 24 (Time Gate 0.383 ms) bn_SFxFF26: dB/dt X Component Fraser Filter Channel 26 (Time Gate 0.505 ms) bn_TauBF: B-Field Calculated Time Constant (ms) bn_TauSF: dB/dt Calculated Time Constant (ms) bn_TMI: Total Magnetic Intensity (nT) bn_PLM: Power Line Monitor (50Hz) where bn represents block name. A Geosoft .GRD file has a .GI metadata file associated with it, containing grid projection information. A grid cell size of 25 metres was used. • Maps at 1:10,000 (EL22/2010, EL32/2010, EL50/2008N and EL50/2008S) and 1:20,000 (EL46/2010) in Geosoft MAP format, as follows: AA1362_scalek_bn_dBdtz: dB/dt profiles Z Component, Time Gates 0.220 - 7.036 ms in linear - logarithmic scale. AA1362_scalek_bn_Bfieldz: B-field profiles Z Component, Time Gates 0.220 - 7.036 ms in linear - logarithmic scale over reduced to pole TMI. AA1362_scalek_bn_BFz26: B-field Z Component Channel 26, Time Gate 0.505 ms colour image. AA1362_scalek_bn_BFz36: B-field Z Component Channel 36, Time Gate 2.021 ms colour image. AA1362_scalek_bn_SFxFF23: dB/dt X Component Fraser Filter Channel 23, Time Gate 0.333 ms colour image. AA1362_scalek_bn_SFxFF24: dB/dt X Component Fraser Filter Channel 24, Time Gate 0.383 ms colour image. AA1362_scalek_bn_SFxFF26: dB/dt X Component Fraser Filter Channel 26, Time Gate 0.505 ms colour image. AA1362_scalek_bn_RTP: Reduced to Pole Total Magnetic Intensity (RTP) colour image and contours. AA1362_scalek_bn_TauSF: dB/dt Calculated Time Constant (TAU) with contours of anomaly areas of the Calculated Vertical Derivative of Reduced to Pole TMI colour image. where bn represents block name. scale represents the scale of the map Maps are also presented in PDF format. The topographic vectors were taken from Australian Government - Geoscience Australia at 1:250,000 scale http://www.ga.gov.au. • A Google Earth file AA1362_FP.kml showing the flight path of the block is included. Free versions of Google Earth software from: http://earth.google.com/download-earth.html Processed by: Geotech Ltd. 245 Industrial Parkway North Aurora, Ontario, L4G 4C4 Phone: 905.841.5004 Fax: 905.841.0611 www.geotech.ca