AIRBORNE GEOPHYSICAL DATA DVD-ROM Survey name: Daguilar, Moores and WartHill Blocks Location: Strathgordon, Tasmania, Australia Job No.: AA926 Client: Frontier Resources Ltd. Survey date: February 1st-23rd 2012 Survey company name: Geotech Ltd. Total line-km: 955 Archive creation date: April, 2012 Aircraft type: Astar 315 Lama helicopter registration VH-VTN Base of operation: Strathgordon, Tasmania Mean terrain clearance: 79 m Airborne Magnetometer Model: Geometrics Type: Cesium-vapour Sample Interval: 0.1 seconds Sensitivity: 0.02 nT Mount: Towed bird, 13 metres below helicopter Actual average magnetic sensor clearance : 66 metres Airborne EM Model: Geotech Time Domain EM system Type: versatile time domain electromagnetic (VTEMplus) system Number of channels: 32 (0.096 - 7.036 ms) Sample Interval: 0.1 seconds Mount: Towed ring, 35 metres below helicopter Transmitter Transmitter Loop diameter: 26 m Effective Transmitter coil area: 2123 m2 Number of turns: 4 Transmitter base frequency: 25 Hz Peak current: 189 A Pulse width: 8.37 ms Peak dipole moment: 401,382 nIA Actual Average EM Bird terrain clearance: 43 metres 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 Navigation type: NovAtel’s WAAS (Wide Area Augmentation System) enable GPS receiver (on the tail of the helicopter) Radar altimeter: Terra TRA3000/TRI-40 Survey block Traverse Line spacing (m) Area (Km2) Planned Line-km Actual Line-km Flight direction Line numbers Daguilar Traverse: 150 59 403 403.2 N 90° E / N 270° E L10010 – L11190 Tie: 1500 35.6 N 0° E / N 180° E T91010 – T91020 Moores Traverse: 150 18 135 133.1 N 90° E / N 270° E L30010 – L30370 Tie: 1500 13 N 0° E / N 180° E T93010 – T93030 WartHill Traverse: 150 58 417 392.1 N 90° E / N 270° E L20010 – L21260 Tie: 1400 37.6 N 0° E / N 180° E T92010– T92030 TOTAL 135 955 1014.6 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. 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 Mag2: nT Diurnal corrected Total Magnetic field data Mag3: nT Levelled Total Magnetic field data CVG nT/m Calculated Vertical Derivative of TMI RTP nT Reduced To Pole of TMI RTP_CVG nT/m Calculated Vertical Derivative of 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 BFz (pV*ms)/(A*m4) Z B-Field data for time channels 14 to 47 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 60 Hz power line monitor VTEM Decay Sampling Scheme Index Middle Start End Milliseconds 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 • Database of the VTEM Waveform “AA926_Waveform_Final.gdb” in Geosoft GDB format, containing the following channels: Time: Sampling rate interval, 5.2083 microseconds Rx_Volt: Output voltage of the receiver coil (Volt) Tx_Curr: Output current of the transmitter (Amp) • Grids in Geosoft GRD format, as follows: BFz**: B-Field Z Component Mag3: Total Magnetic Intensity (nT) RTP: Reduced To Pole of TMI (nT) CVG: Calculated Vertical Derivative of TMI (nT/m) TauBF: B-Field Calculated Time Constant 0.02 threshold (ms) TauSF: dB/dt Calculated Time Constant 0.08 threshold (ms) SFxFF**:Fraser Filter X Component dB/dt A Geosoft .GRD file has a .GI metadata file associated with it, containing grid projection information. A grid cell size of 37.5 metres was used. • Maps at 1:10,000 & 1:25,000 scale in Geosoft MAP format, as follows: AA926_scalek_dBdtz_bb: dB/dt profiles Z Component, Time Gates 0.220 – 7.036 ms in linear – logarithmic scale. AA926_scalek_Bfield_bb: B-field profiles Z Component, Time Gates 0.220 – 7.036 ms in linear – logarithmic scale over total magnetic intensity. AA926_scalek_BFz_bb: B-field late time Z Component color image. AA926_scalek_SFxFF_bb: dB/dt early time X Component Fraser Filter color image. AA926_scalek_RTP_bb: Reduced To Pole of TMI (RTP) color image. AA926_scalek_TauSF_bb: dB/dt Calculated Time Constant (TAU) with contours of anomaly areas of the Calculated Vertical Derivative of TMI AA926_scalek_AS_bb: Analytic Signal Maps are also presented in PDF format. The topographic data base was derived from 1:50,000 the NRCAN Geogratis database at; http://geogratis.gc.ca/geogratis/en/index.htmlUH. • A Google Earth file “AA926_flightpath.kml” is included, showing the flight path of each block. Free versions of Google Earth software from: HUhttp://earth.google.com/download-earth.html Flown and processed by: Geotech Ltd. 245 Industrial Parkway North Aurora, Ontario, L4G 4C4 Phone: 905.841.5004 Fax: 905.841.0611 www.geotech.ca