		AIRBORNE GEOPHYSICAL DATA

			DVD-ROM

Survey name:			Hopper and Hooch Properties 
Location:			Haines Junction, Yukon Territory
Job No.:                       	11354
Client:                        	Bonaparte Resources Inc
Survey date:     		November 22nd to January 12th, 2012
Survey company name:            Geotech Ltd.

Total line-km:               	2083
Archive creation date:		January, 2012

Aircraft type:                  Astar 350 B3 helicopter registration C-GTEQ
Base of operation:            	Haines Junction, Yukon Territory
 
Airborne Magnetometer
Model:				Geometrics 
Type:				Cesium-vapour
Sample Interval:		10 Hz (0.1 seconds); 2-3 metres
Sensitivity:			0.02 nT
Mount:                          Towed bird, 13 metres below helicopter
Height above ground:		63 metres

Airborne EM
Model:				Geotech Ltd. 
Type:				VTEM
Number of channels:		32 (0.220 -  7.036ms) 
Sample Interval:		10 Hz (0.1 seconds); 2-3 metres
Mount:				Towed ring, 42 metres below helicopter
Transmitter Loop diameter:	26 m
Transmitter Number of turns:	4
Current:			260 Amp
Peak Dipole moment:		253,016nIA
Pulse width:			3.40 ms
Receiver Loop diameter:		1.2 m
Receiver number of turns:	100
Receiver effective area:	113.04 m2
Height above ground:		41 metres

Mean terrain clearance:         76 m
																									
	
Navigation type:		NovAtel’s CDGPS enable Propak V3-RT20 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
Hooch			Traverse: 100			103		1138		1132		N 40° E / N 220° E	L3000-L4550
			Tie: 1000									N 130°E / N 310° E	T4800-T4860
Hopper			Traverse: 100			113		1239		951		N 70° E / N 250° E	L1000-T2300
			Tie: 1000									N 160° E / N 340° E	T2800-T2890
						TOTAL	216		2378		2083	 



	
		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:		metres	UTM Easting NAD83 Zone 8 North
Y:		metres	UTM Northing NAD83 Zone 8 North
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
SFz[14]:	pV/(A*m4)	Z dB/dt 96 microsecond time channel 
SFz[15]:	pV/(A*m4)	Z dB/dt 110 microsecond time channel 
SFz[16]:	pV/(A*m4)	Z dB/dt 126 microsecond time channel 
SFz[17]:	pV/(A*m4)	Z dB/dt 145 microsecond time channel 
SFz[18]:	pV/(A*m4)	Z dB/dt 167 microsecond time channel 
SFz[19]:	pV/(A*m4)	Z dB/dt 192 microsecond time channel 
SFz[20]:	pV/(A*m4)	Z dB/dt 220 microsecond time channel 
SFz[21]:	pV/(A*m4)	Z dB/dt 253 microsecond time channel 
SFz[22]:	pV/(A*m4)	Z dB/dt 290 microsecond time channel 
SFz[23]:	pV/(A*m4)	Z dB/dt 333 microsecond time channel 
SFz[24]:	pV/(A*m4)	Z dB/dt 383 microsecond time channel 
SFz[25]:	pV/(A*m4)	Z dB/dt 440 microsecond time channel 
SFz[26]:	pV/(A*m4)	Z dB/dt 505 microsecond time channel 
SFz[27]:	pV/(A*m4)	Z dB/dt 580 microsecond time channel 
SFz[28]:	pV/(A*m4)	Z dB/dt 667 microsecond time channel 
SFz[29]:	pV/(A*m4)	Z dB/dt 766 microsecond time channel 
SFz[30]:	pV/(A*m4)	Z dB/dt 880 microsecond time channel 
SFz[31]:	pV/(A*m4)	Z dB/dt 1010 microsecond time channel 
SFz[32]:	pV/(A*m4)	Z dB/dt 1161 microsecond time channel 
SFz[33]:	pV/(A*m4)	Z dB/dt 1333 microsecond time channel 
SFz[34]:	pV/(A*m4)	Z dB/dt 1531 microsecond time channel 
SFz[35]:	pV/(A*m4)	Z dB/dt 1760 microsecond time channel 
SFz[36]:	pV/(A*m4)	Z dB/dt 2021 microsecond time channel 
SFz[37]:	pV/(A*m4)	Z dB/dt 2323 microsecond time channel 
SFz[38]:	pV/(A*m4)	Z dB/dt 2667 microsecond time channel 
SFz[39]:	pV/(A*m4)	Z dB/dt 3063 microsecond time channel 
SFz[40]:	pV/(A*m4)	Z dB/dt 3521 microsecond time channel 
SFz[41]:	pV/(A*m4)	Z dB/dt 4042 microsecond time channel 
SFz[42]:	pV/(A*m4)	Z dB/dt 4641 microsecond time channel 
SFz[43]:	pV/(A*m4)	Z dB/dt 5333 microsecond time channel 
SFz[44]:	pV/(A*m4)	Z dB/dt 6125 microsecond time channel 
SFz[45]:	pV/(A*m4)	Z dB/dt 7036 microsecond time channel 
BFz		(pV*ms)/(A*m4)	Z B-Field data for time channels 14 to 45
PLM:				60 Hz power line monitor
CVG		nT/m		Calculated Magnetic Vertical Gradient 
TauSF		milliseconds	Time Constant (Tau) calculated from dB/dt data
TauBF		milliseconds	Time Constant (Tau) calculated from B-Field data
Nchan_BF			Last channel where the Tau algorithm stops calculation, B-Field data 
Nchan_SF			Last channel where the Tau algorithm stops calculation, dB/dt data   





Decay Sampling Scheme
VTEM Decay Sampling scheme 
Index	Middle	Start	End	Window
 	Microseconds
14	96	90	103	13
15	110	103	118	15
16	126	118	136	18
17	145	136	156	20
18	167	156	179	23
19	192	179	206	27
20	220	206	236	30
21	253	236	271	35
22	290	271	312	40
23	333	312	358	46
24	383	358	411	53
25	440	411	472	61
26	505	472	543	70
27	580	543	623	81
28	667	623	716	93
29	766	716	823	107
30	880	823	945	122
31	1,010	945	1,086	141
32	1,161	1,086	1,247	161
33	1,333	1,247	1,432	185
34	1,531	1,432	1,646	214
35	1,760	1,646	1,891	245
36	2,021	1,891	2,172	281
37	2,323	2,172	2,495	323
38	2,667	2,495	2,865	370
39	3,063	2,865	3,292	427
40	3,521	3,292	3,781	490
41	4,042	3,781	4,341	560
42	4,641	4,341	4,987	646
43	5,333	4,987	5,729	742
44	6,125	5,729	6,581	852
45	7,036	6,581	7,560	979

Z Component: 14-45 time gates
X Component: 20-45 time gates.



•	Database of the VTEM Waveform “11354_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:

TMI:		Total Magnetic Intensity (nT)
BFz36:		B-Field Z Component Channel 36 (Time Gate 2.021 ms)
TAUSFz:		dB/dt Calculated Time Constant (TAU)
TAUBFz:		B-Field Calculated Time Constant (TAU)
CVG:		Calculated Vertical Derivative of TMI (CVG)
DEM:		Digital Elevation Model

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 1:20,000 scale in Geosoft MAP format, as follows:

11354_20K_dBdtZ_bb: 	dB/dt profiles Z Component, Time Gates 0.220 – 7.036 ms in linear – logarithmic scale.
11354_20K_BfieldZ_bb: 	B-field profiles Z Component, Time Gates 0.220 – 7.036 ms in linear – logarithmic scale.
11354_20K_BFz36_bb: 	B-Field late time Z Component Channel 36, Time Gate 2.021 ms colour image.
11354_20K_TMI_bb:	Total Magnetic Intensity (TMI) colour image and contours.
11354_20K_TauSF_bb: 	dB/dt Calculated Time Constant (TAU) with contours of anomaly areas of the Calculated Vertical Derivative of TMI

Where bb represents the block name ie 11354_20k_TMI_Hooch


Maps are also presented in PDF format.

 		
The topographic data base was derived from 1:50,000 the NRCAN Geogratis database at; HUhttp://geogratis.gc.ca/geogratis/en/index.htmlUH.
 		
•	A Google Earth file “11354_Bonaparte.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