rpt on utem survey · l a single loop of 800 metres by 900 metres was deemed sufficient to provide...

'l41I15SE0046 2.16925 RATHBUN 010

JReport on a UTEM Survey for Flag Resources (1985) Limited

at the Rathbun Lake Property, Sudbury District

'RECEIVEDDEC 6 - 1998

6925

LAMONTAGNE GEOPHYSICS LTD GEOPHYSIQUE LTEE

September 19,1996 Gerry Lafortune

Ben Polzer (M. Se.)

, ——J

i

Logistics Report on a UTEM Survey for Flag Resources (1985) Limited at the Rathbun Lake Property, Sudbury District.

CONTENTS

Introduction ..................................................... lProperty and Access.................................................... lSurvey Design ..................................................... lSurvey Logistics ..................................................... 4Survey Results ..................................................... 5

Figures

Figure 1: Area Location Map ............................. 2Figure 2: Loop Location Map ............................ 3

Tables

Table 1: Production Log ........................................ 6

Appendix A ..................... The UTEM SystemAppendix B ..................... UTEM Loop ProfilesAppendix C ..................... Vectorplots

41I15SE00462.16925 RATHBUN U 1UU

'l INTRODUCTIONr' -7 A UTEM III System was mobilized to RathbunTownship, to initiate a program ofJ geophysics for Flag Resources within the Sudbury District. The survey wasj initiated June 20th by Lamontagne Geophysics Ltd. using equipment and' T personnel from other projects located in and around Sudbury, Ontario. All workJ was completed June 26, 1996. The object of the survey wos to locale off-hole\ conductors in the area of the two boreholes that had previously intersected small* ~" massive sulphide occurrences.

i This report is prepared to describe the procedures used and present the survey l results.

j^ LOCATION AND ACCESS

T "* The survey area is located on the south shore of Rathbun Lake; immediately east ^ ^ of Lake Wanapitei. It is approximately 80 kilometres by road East of the base of operations located at the Northland Motel, Chelmsford, Ontario.

Daily access to the property was by a 4wheel drive 3/4 ton Truck which moved personnel and equipment between the base of operations and the work area.

Road access was along highway 144 to the junction with highway 1 7, then along Hwy 1 7 to the Kukagami Road turnoff. The Kukagami Road was then travelled for approximately 40 kilometres north to the immediate project access road. At this point a skidder road was used for about 1.6 kilometres which ended at the survey site. It should be noted that while this road was accessible lo four wheel drive vehicles, it contained a number of large rocks on the surface. These rocks caused significant delay, adding greatly to the overall travel times both into and out of the project area.

SURVEY DESIGNi

The survey consisted of two boreholes. Hole RL-96-1 is located about 20 feet East of a small shaft. It has a vertical orientation. The second hole designated RBL-96- i 2A is oriented at 270 d egrees azimuth (approx.) and is drilled at a minus 70 degree dip. It is located within approximately 100 feet of the first hole andapproximately due North from (he shaft.V-

l A single loop of 800 metres by 900 metres was deemed sufficient to providef coverage of these two boreholes. The loop was positioned so that the two1j" boreholes were located inside the loop and 200 metres from the West side. Thisj would provide the best source fields for any conductors around the holes thati were either flat lying or slightly East dipping .

j I -'lng Resources (1985) Limited, Rathbun Lake Property, Sudbury, Ontario (June 1996) pg . ll-

LAMONTAGNE GEOPHYSICS LTD. GEOPHYSIQUE LTEE.

Flag Resources (1985) Limited AREA LOCATION MAP

Sudbury, Ontario - Project 9617

l : 50,000 Figure l

Flag Resources (1985) Limited, Rathbun Lake Property, Sudbury, Ontario (June 1996) pg . 2

lf(^ i /-M^.-Y \\:/*' tV-'.:.'"-.LOOP l(800m X 900m) ';v\\^ ' " \\ f

LAMONTAGNE GEOPHYSICS LTD. GEOPHYSIQUE LTEE.

Flag Resources (1985) LimitedLOOP LOCATION MAP

Sudbury, Ontario - Project 9617

Figure 2


'"f The borehole survey measurements were to record the axial component (Hx) of- - the magnetic field for all stations. Ten windows (channels) were to be sampled representing delay times ranging from 25 microseconds to 12.8 milliseconds at "l the specified operating frequency of 30 Hz (approx.). A minimum of 4,096 half-•r* cycles of the waveform were to be stacked at each station (80 seconds per J^ component), this was to be increased if necessary, depending on the local noise encountered.

SURVEY LOGISTICS*j This survey was added to ongoing work in the Sudbury district. A 4 person crew-'r-j located in Sudbury worked on this project while completing other projects in the^ area. The loop was laid out in advance of the survey; the two boreholes werej surveyed the same day; then after initial data reduction was completed and the-*-j quality of the data was assured, the loop was picked up.

w- *

j Consequently the elapsed time of 3 working days between loop layout and pick-~""- up, was spread out over 7 calendar days due to previous committments. During. this time all sides of the loop were chained, with chaining also locating theJ boreholes into the loop location, co-ordinates.

L The survey equipment consisted of a UTEM III transmitter and one UTEM IIIj receiver, including all accessories and support equipment. The borehole systeml ~ consisted of l- 2.9 kilometre fiber optic cable, l- 3.0 kilometre fiber optic cable asU- spare and a winch system. A Macintosh model II field computer was used in allj data reduction, with all data being reduced each night.r— —

K - A minimum stacking time of 4,096 half-cycles was used for both holes, withj _ reliability being checked every 100 metres by repeating 2 readings at the sameT station and comparing the amplitudes. On BH-9601 a spacing of 10 metres was*i " used between all stations for the entire depth probed. On BH-9602 a 20 metreJ - station spacing was used down to a depth of 500 metres, the spacing was reducedl to 10 metre intervals from 500 metres to the bottom of the hole.

J A daily Production log which provides a more detailed description of eventsI forms Table l of this report.

* A description of the UTEM System and the data reduction and presentationi formats used for this work can be found in Appendix "A" attached.


'1 SURVEY RESULTS* -}

. L, Data Reduction

The data in both these holes were collected in an inside-the-loop configuration ~'-^ with the majority of the primary field along the direction of the holes. The ten^j UTEM data time channels are reduced in two ways in the accompanying plots.Channels 2-10 are plotted in channel l reduced form whereby the latest time~ t channel, channel 1 , is subtracted as a late time reference estimate of the primary^^i field (note that the UTEM channel numbering convention is that the higherj channel number corresponds to earlier time delays). The latest channel, channel "1 l is reduced by subtracting the primary field computed from the known trajectory , J of the hole and location of the transmitter loop., It appears apart from the otherj channels on the lower axis of these plots.J1

i l he use of channel l as a late time reference effectively removes any de effectsJ such as errors in our knowledge of the geometry of the survey, as well as ' "l magnetostatic responses which would show up as magnetic anomalies in an ordinary magnetic survey. The use of channel l as a late time reference will also, however, remove any extremely long time constant EM anomalies with time constants much larger than the half-period of the waveform usedO/60 s). In data treated this way, such anomalies will only be visible in channel l itself which J uses the computed primary field as a reference. Such very long time constant j anomalies are generally very rare, but are more common around Sudbury where , the Ni-Cu ores tend to be extremely conductive features.! i __

~ INTERPRETATIONl* *

J Tlie data in both holes 9601 and 9602 are remarkable for the lack of response in the mid to late channels as presented in the channel l reduced profiles attached. There are apparently no well coupled conductors of intermediate to long time decav within detectability range o f the hole. Given the low noise of the data this means that the data exclude the possibility of a conductor of intermediate to long time decay at a range Smaller than 1.5-2 times its intermediate lateral dimension.

Channel l itself, plotted on the lower axis, displays a number of "anomalies". In general "channel l only" anomalies are due to one of the following sources:(1) magnetic anomalies,

(2) errors in the location of the loop or the trajectory of the hole,

(3) conductors of extremely long time constant.


"f"' An examination of these anomalies shows that they are not due to a highly conductive source and are likely due to a combination of hole trajectory error,. . explaining the broad negative in hole 9602, and mag responses, causing the small j amplitude but sharp edged anomalies seen in both holes. The excursions in"j""' channel l a re all negative (relative to the primary field) or of in-hole polarity yet* ! there are no actual intersections of high grade massive sulphides. As well, evenf very massive zones generally have at least semi-massive or disseminatedj sulphides elsewhere nearby which would give associated decaying responses- -. clearly visible in the difference channels 2-10. None appear to be present in thses l results.

Ji

J'l

j

—o S. B

While the channel l excursions observed are not themselves indicative of exploration targets, their presence degrades the detectability of genuine extremely long time constant conductors in the vicinity. While nothing can be done about the magnetic anomalies, the geometric errors can be improved by getting the hole trajectory right.

Table l9617 Production Log

Flag Resources, Rathbun Lake

June 20 L Brian E., Yannick C., Steve B. and Jason C. laid loopt; --| for Flag Resources. Bush very bad in places, boatj needed to cross Rathbun Lake.r" -j June 23 P - 1255 Gerry L., Heidi F., Brian E. and Jason C. read hole J 9601, (O - 420m) and 9602, (O - 835m). Loop broken inj one spot extended the survey day. * ^

,.B June 26 L Guy C. and Yannick C. pick up loop l and bring out l boat, job finished.


j Appendix Ai

i JThe UTEM SYSTEM

D(3-

M *The UTEM System

^~ *UTEM Data Reduction-i and Plotting Conventions

-i *Data Presentation

r

r

:r'i r

The UTEM SYSTEM

UTEM uses a large, fixed, horizontal transmitter loop as its source. Loops range in size from 300m x 300m up to as large as 4km x 4km. Smaller loops are generally used over conductive terrain or for shallow sounding work. The larger loops are only used over resistive terrain.

The UTEM receiver is typically synchronised with the transmitter at the beginning of a survey day and operates remotely after that point. The clocks employed, one in each of the receiver and transmitter, are sufficiently accurate to maintain synchronisation for the duration of a survey day.

Measurements are routinely taken to a distance of 1.5 to twice the loop dimensions, depending on the local noise levels, and can be continued further. Lines are typically surveyed out from the edge of the loop but may also be read across the loop wire and through the centre of the loop, a configuration used mainly to detect horizontal conductors. BHUTEM, the borehole version of UTEM, surveys have been carried out to depths which exceed 3000 metres.

System Waveform

The UTEM transmitter passes a low-frequency (4 Hz to 90 Hz) current of a precisely regulated triangular waveform through the transmitter loop. The frequency can be set to any value within the operating range of the transmitter, however, it is usually set at 31 Hz to minimise power line effects (60 Hz in North America). Since a receiver coil responds to the time derivative of the magnetic field, the UTEM system really "sees" the step response of the ground. UTEM is the only time domain system which measures the step response of the ground. All other T.D.E.M. systems to date transmit a modified step current and "see" the (im)pulse response of the ground at the receiver. In practice, the transmitted UTEM waveform is tailored to optimize signal-to-noise, with Deconvolution techniques employed within the system, to produce an equivalent to the conceptual "step response" at the receiver.

System Sampling

The UTEM receiver measures the time variation of the magnetic field in the direction of the receiver coil at 10 delay times (channels). UTEM channels are spaced in a binary, geometric progression across each half-cycle of thereceived waveform. Channel 10 is the earliest channel and it is 1/2^0 of thehalf-cycle wide. Channel l, the latest channel, is 1/2^ of the half-cycle wide (see Sketch below). The measurements obtained for each of 10 channels are

Appendix "A" page 1of10

Qt3

p p p

a

accumulated over many half-cycles. Each final channel value, as stored, is the average of the measurements for that time channel. The number of half-cycles averaged generally ranges between 2048 (1024 full-cycles - IK in UTEM jargon) to 32768 half-cycles (16K) depending on the level of ambient noise and the signal strength.

The UTEM Sampling Scheme

Channel 1

Half cycle

UTEM Channels

43 Channel 1

Full cycle

jij

System Configurations

For surface work the receiver coil is mounted on a portable tripod and oriented appropriately. During a surface UTEM survey the vertical component of the magnetic field (Hz) of the transmitter loop is always measured. Horizontal in-line (Hx) and cross-line (Hy) components are also measured if more detailed information is required. The UTEM System is also capable of measuring the two horizontal components of the electric field, Ex and Ey. A dipole sensor comprised of two electrodes is used (o measure the electric field components. This is generally used for outlining resistive features to which the magnetic field is not very sensitive.

The Moving Loop array, a specialized surface configuration, has proven to be a highly cost effective method of data aquisition for reconnaissance exploration of large areas. Like the more conventional Slingram (horizontal loop) technique; it is comprised of a transmitter loop which, while fixed inAppendix "A " page 2 of 10

olo

a

j

loop) technique; it is comprised of a transmitter loop which, while fixed in size, moves with the receiver according to the station interval required for target detection. A constant separation between the loop and receivers is always maintained. As a new loop must be established for every receiver station, most of the teamwork for the moving loop array is in establishing the required series of transmitter loops. Two receivers, each measuring two field components (Hx fe Hz), are often employed with this array, at different offsets from the loop centre.

BHUTEM surveys employ a receiver coil that is smaller in diameter than the surface coil. The borehole receiver coil forms part of a down-hole receiver package used to measure the axial (along-borehole) component of the magnetic field of the transmitter loop. In BHUTEM the signal is transmitted to surface digitally using a kevlar-reinforced fibre-optic cable as a data link. Using a fibre-optic link avoids signal degradation problems usually encountered in borehole surveys where the received signal must be transmitted with high precision over large distances. This allows surveying of boreholes to depths which exceed 3000 metres. The cable is also very light, having a specific gravity of nearly 1.0, making the cable handling hardware quite portable.

The EM Induction Process

Any time-varying transmitted ("primary") field induces current flow in conductive regions of the ground below and around the transmitter loop (i.e. in the earth or "half-space"). This current flow produces a measurable EM field, the secondary field, which has an inherent "inertia" that resists the change in primary field direction. This "inertial" effect is called self- inductance; it limits the rate at which current can change and is only dependent on the shape and size of a conductive path.It takes a certain amount of time for the transmitted current flow to be redirected (reversed) and reestablished to full amplitude after the rate-of- change of the primary field reverses direction. This measurable reversal time is characteristic for a given conductor. In general, for a good conductor this time is greater than that of a poor conductor. This is because in a good conductor the terminal current level is greater, whereas its rate of change is limited by the inductance of the current path. The time-varying current causes an Emf in the sensor proportional to the time derivative of the current. This Emf decays with time - it vanishes when the reversal is complete - and the characteristic time of the Emf decay, as measured by the sensor, is referred to as the decay time of the conductor.

The large-scale current which is induced in the half-space by the primaryAppendix "A" page 3 of 10

-jjl field produces the half-space response as seen in typical UTEM profiles. This

l background response is influenced by the finite conductivity of the J surrounding rock. Other currents may be induced in locally more

J conductive zones (conductors) that have longer decay times than the half- "j space response. The responses of these conductors are superimposed upon

the background response. The result is that the UTEM receiver detects:

J

J

j

3

J J

JJ

- the primary field waveform, a square-wave- the half-space (background) response of the surrounding rock- a slight-to-large response due to any conductors present.

The result is that in the presence of conductors the primary field waveform is substantially (and anomalously) distorted.

Appendix "A" page 4 of 10

j

l

"J UTEM DATA REDUCTION and PLOTTING CONVENTIONSi The UTEM data as it appears in the data files is in total field, continuouslyJ normalized form. In this form, the magnetic field data collected by the

i receiver is expressed as a percentage (*7o) of the calculated primary magnetic--j field vector magnitude at the station. These " total field values" observed byJ the UTEM system during the system "on-time" are therefore samples of

both the primary and secondary fields at the point of observation.

J For plotting purposes/ the reduced magnetic field data (as it appears in the j data file) are transformed to other formats as required. The following is

3 provided as a description of the various plotting formats used for the display of UTEM data. A plotting format is defined by the choice of the i normalization a nd field type parameters selected for display.

j NORMALIZATION"l

w J UTEM results are always expressed as a Jo of a normalizing field at somej point in space.n

s.'-' In continuously normalized form the normalizing factor (the denominator)j is the magnitude of the computed local primary field vector. As the primary, ~j exciting field magnitude diminishes, with increasing distance from the\^ t ransmitter loop, the response is continuously amplified as a function ofj offset from the loop. Although this type of normalization considerably

: l distorts the response shape, it permits anomalies to be easily identified at a* * wide range of distances from the loop.^

j Note: An optional form of continuous normalization permits thej interpreter to normalize the response to the magnitude of the primary fieldj vector at a fixed depth below each station. This is useful for surface profilesj which come very close to the loop. Without this adjustment option, the

i normalizing field is so strong near the loop that the secondary effectst , become too small to be recognisable in the presence of such a large primary

i component. In such circumstances, interpretation is difficult. Byi "normalizing at some depth" the size of the normalizing field, near the loop' in particular, is reduced and the resulting profile can be more effectively

interpreted to a very close distance from the transmitter wire. The usuall choice for the normalization depth is the estimated target depth.

. ,^ In point normalized form the normalizing factor is the magnitude of theJ computed primary field vector at a single point in space. When data is

presented in this form, the point of normalization is displayed in the title* block of the plot. Point normalized profiles show the non-distorted shape of

! Appendix "A" page 5 of 10

~1 the field profiles. Unfortunately, the very large range in magnitude of r1 anomalies both near and far from the loop means that small anomalies,

particularly those far from the loop, may be overlooked on this type of plot ~1 in favor of presenting larger amplitude anomalies.

Note: Selecting the correct plot scales is critical to the recognition of J conductors over the entire length of a point normalized profile. Point

normalized data is often used for interpretation where an analysis of the shape of a specific anomaly is required. Point normalized profiles are

j therefore plotted selectively as required. An exception to this procedure "j occurs where surface dnta has been collected entirely inside a transmitter J loop. The primary field does not vary greatly inside the loop, therefore, the

j benefits of continuous normalization are not required in the display of such "j results. In these cases data is often point normalized to a fixed point near

the loop centre.

G[J

[J

Yfs!

FI ELD TYPE

The type of field may be either the Total field or the Secondary field. Ingeneral, it is the secondary field that is most useful for the recognition and interpretation of discrete conductors.

UTEM Results as Secondary Fields

Because the UTEM system measures during the transmitter "on-time" the determination of the secondary field requires that an estimate of the primary signal be subtracted from the observations. Two estimates of the primary signal are available:

1) UTEM Channel lJ

O One estimate of the primary signal is the value of the latest time channel observed by the UTEM System, channel 1. When Channel l is subtracted

j from the UTEM data the resulting data display is termed Channel l \ j R educed. This reduction formula is used in situations where it can be j"1 assumed that all responses from any target bodies have decayed away by

the latest time channel sampled. The Channel l value is then a reasonable estimate of the primary signal present during Channels 2....10.

gl, In practice the Channel l Reduced form is most useful when the secondary response is very small at the latest delay time. In these cases channel l is indeed a good estimate of the primary field and using it avoids problems due to geometric errors or transmitter loop current/system sensitivity errors.


2) Calculated Primary Field

An alternate estimate of the primary field is obtained by computing the primary field from the known locations of the transmitter loop and the receiver stations. When the computed primary field is subtracted from the UTEM data the resulting data display is termed Primary Field Reduced .The calculated primary field will be in error if the geometry is in error through the mislocation of either the survey stations or the loop vertices. Alternatively; if the transmitter loop current/system sensitivity is in error, an error in the calculated primary field will also result. Mislocation errors from loop/station geometry may give rise to very large secondarya field errors depending on the accuracy of the loop and station location method used. In contrast, the transmitter loop current/system sensitivity

j error is rarely greater than T.%. Primary Field Reduced data is plotted inQ situations where a large Channel l response is observed. In this case the assumption that the Channel l value is a reasonable estimate of the j "background" primary field effect is not valid.

Note: When UTEM data is plotted in the Cliannel l Reduced form the secondary field data for Channel l itself are always presented in Primary Field Reduced form and are plotted on a separate axis. This plotting format serves to show any long time-constant responses, the presence of magnetostatic anomalies and/or geometric errors in the data.

3G

j Mathematical Formulations tj-J In the following expressions:**—f

J Rnj is the result plotted for the ntri UTEM channel; j Rli is the result plotted for the latest-time UTEM channel, channel 1;lt** Chnj is the raw component sensor value for the n^ channel at station j; ! . Chlj is the raw component sensor value for channel l at station j;S H^j is the computed primary field component in the sensor direction, and;

l H l is the magnitude of the computed primary field at:- a fixed station for the entire line (point normalized data) j - the local station of observation (continuously normalized data)

Appendix "A " page 7 of 10

J-a fixed depth below the local station (continuously normalized at a

depth).

Channel l Reduced Secondary Fields : Here, the latest time channel, Channel l, is used as an "estimate" of the primary signal and channels 2-10 are expressed as:

Rnj = (Chnj- Chip l l Hp l x 1009fc

Channel l itself is reduced by subtracting a calculation of the primary field observed in the direction of the coil, Hp as follows:

Rlj ~ (Chlj - Hpj) l l Hp l x

Primary Field Reduced Secondary Fields : In this form all channels are reduced according to the equation used for channel l above:

Rnj = (Chnj- Hpj) l l Hp l x 1007*

This type of reduction is most often used in cases where very good geometric control is available (leading to low error in the calculated primary field, Hpj)and where very slowly decaying responses result in significant secondary field effects remaining in channel l observations.

UTEM Results as a Total Field

In certain cases results are presented as a 7o o f the Total Field. This display is particularly useful, in borehole surveys where the probe may actually pass through a very good conductor. In these cases the shielding effect of the conductor will cause the observed (total) field to become very small below the intersection point. This nullification due to shielding effects on the total., field is much easier to see on a separate Total Field plot. In cases where the I l amplitude of the anomalies relative to the primary field is small, suggesting\ the presence of poorly conductive bodies, the Total Field plot is less useful.

M The data contained in the UTEM reduced data files is in Total Field, l continuously normalized form if:f ] Rnj ^ Chnj l l Hp l x 1007cl*

l Appendix "A" page 8 of 10M

oB DATA PRESENTATION

All UTEM survey results are presented as profiles in Appendix "B" of this report. These results are plotted as 10 channel Secondary Field data in Channel I Reduced form continously normalized.

For all 30 Hz data the standard plotting configuration has been used (see below "Notes on Standard Plotting Formats").

The symbols used to identify the channels on all plots as well as the mean delay time for each channel is shown in the table below.

4-,

UTEM Svstem Mean Delav Times 1110 Channel

f base freq:

Channel #

1234

5

6

7

8

9

1 0

Mode @ 3130.974

Delay time (ms)12.116.0533.0271.5130.7570.3780.1 890.0950.0470.024

hz.(approx.) lhertz )

Plot Symbol

lVsa

jL7xAO

Plotting Scale: All data are plotted along the trace of the respective survey line or projected axis of a borehole at an appropriate scale. All stations are represented by tics spaced at intervals of 200 feet or 10 or 20 metres respectively.


—1JNotes on Standard Plotting Formats:

a) Surface UTEM data Profiles (various arrays)

10 channel data in Channel l Reduced form - The data are usually displayed on three separate axes. This permits scale expansion, allowing for accurate determination of signal decay rates. The standard configuration is:

Bottom axis - Channel l (latest time) is plotted alone i nPrimary Field Reduced form using the same scale as the center axis.

Center axis - The intermediate to late time channels, ch5 to ch2 are plotted on the center axis using a suitable scale.

Top axis - The early time channels, chlO to ch6 and a repeat of ch5 for comparison are plotted on the top axis at a reduced scale. The earliest channels, ch8 to chlO, may not be plotted to avoid clutter.

10 channel data in Primary field Reduced form: The data are displayed using a single axis plot format. Secondary effects are plotted using a Y axis

T on each data plot with peak to peak values up to 2009o.

b) BHUTEM data Profiles

RHUTEM data plotted as total field profiles: Data are expressed directly as a percentage of the Total Field value. The Y axis on each single axis data plot shows peak values of up to 1007o. These departures are always relative to the measured total field value at the observation station.

BHUTEM data plotted as secondary field profiles: Check the title block of the plot to determine if the data is in Channel 1 Reduced form or in Primary Field Reduced form.

Polarity Reference on all BHUTEM plots: The ratio between the axial component of the primary field of the loop and the magnitude of the total primary field strength (de) is plotted as a profile without symbols on all BHUTEM plots. In UTEM jargon this is referred to as the "primary field profile" It is plotted for use as a polarity reference tool and is a valuable aid for interpreters.

Vectorplots for BHUTEM data : For all BHUTEM surveys the requisite Vectorplots are presented as plan and section views. Each of these plots show the direction and magnitude of the calculated primary field vectors for each transmitter loop employed. They are presented in Appendix "C".


jliiiS Appendix B

UTEM PROFILES

l

ai

llllTJT

200

- 100400-

600 -:-200

800

1000 -r 300

1200

en

"400 en

i i i i r 5 -o^ O

^

en o

l l | ____ L.

100

200-

300-

400

Loop: 1 Hole: 9601Compt: Axial

Secondary, (Chn - Ch1)7IHpl Contin. Norm at depth of 0 mBase Freq. 30.974 Hz

BHUTEM Survey at: Rathbun Lake For: Flag Resources[LAMONTAGNE OT^NiffrlRfffiTTWflWffiF*^^

J

200

400

600

800

- 100

-200

1000

1200

--300

-400

l l l l l l l l l l l l l l l l l l l l

100-

200-

300-

400

Loop: 1 Hole: 9601Compt: Axial

Secondary, (Cnn - Hpc)7IHpl Contin. Norm at depth of 0 mBase Freq. 30.974 Hz

BHUTEM Survey at: Rathbun Lake For: Flag Resources[LAMONTACNFH^W^SffinKSP^S f c fflfifi?

J200-

400-

600-

800-

1000 -

1200 -

1400 ~

1600 -

1800 ~

2000 -

2200 -

2400 -

2600 -

i i i i i i i i

eg \

- 1 00 -f- i-200 j

I

-300 l

; )-400 ^-

; i7 500 r

; ^r 600

-

:700 :

-

L 800 -Cn^p n^ Ji i i i i i

}

ti

ii i i j01 '-*- o . -

^• '

• '

J-

'

'

t

en ovp vO0^ 0^

111 1 1 ^

1 1

ovp o^

O ^

l l

l l l l l l l l l l l l l l l l l l l l\

O D p

100-

200-

300-

400-

500-

600-

700-

o 800

Loop: 1 Hole: 9602 Compt: Axial

Secondary, (Chn - Ch1)7IHpl Contin. Norm at depth of O m Base Freq. 30.974 Hz

BHUTEM Survey at: Rathbun Lake For: Flag Resources

9617 Plolted : 18/8/96

\ff

200

400

600

800

- 100

en o

-200

1000 -~ 300

1200

1400

1600

1800

-500

2000 "

2200 -

2400

2600 -L

400

-600

-700

800

~i—r i — i — i — i — \ — \ — i — \ — r— i

i i i i

o o

100-

200-

300-

400

500

600-

700-

o 800 oi [ _A_ ) J l l , l l ^ _J t , l l I _l 'l l l

Loop: 1 Hole: 9602 Compt: Axial

Secondary, (Chn - Hpc)7IHpl Contin. Norm at depth of O m Base Freq. 30.974 Hz

BHUTEM Survey at: Rathbun Lake For: Flag Resources

PHYSIQUE LTESurveyed : 23/6/96 Reduced : 10/7/96

9617 Plotted : 18/8/96

jij i

Appendix C

Vectorplots

LP l BH9601, 9602

J

ooo OOD ooo

ooa OQO OCMCSJ

oooO Q O CM

ooo OOQ oooO-.JCM

ooo Ooa

f

-200 Z ~" 600 Y \

l 000 X

-200 600 800

-200-600 1000

-200-600 800

J

J

-200 600 600

-200 600 400

-200 600 200

-200600

O

-200 600-200

-200 600-400 s

ooo ooo T LO CM

\

V^•*-^-*-

s/

\

\^\-~~-^x

iraa.111**

7;

\ \\^-~

X

-^;

it\\x

;^

i1

i

f

Xs*

-*^\\l1

l ' ' f S '/r ^r _

—— -— -

-* —— -

^ ^ -

\ ^, ^

\ \ -l \ s

i l \ \ \ \ \ x\ \ \ \ \

-200-600 600

-200-600 4DO

-200-600 2DO

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160 Pinewood Park- DriveNorth Bay Ontario, Canada FIB 8H2{70S) 476-2354 FAX; ( 705) 476-S628

PHONE #:

FROM:/,

NUMBER OF PAGS3: 3

COMPANY NAME;

FAX f:

DATE:

WELNftVH BAN', ON.

'"YlvCliCOF-IC OIRI-TTl iPV MINIMUM CURVflTURf"

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****** i* A* * *

FLAG RESOURCES ****** t*******

B NUMBER!

LL NAME: DDH COLLAR -7?

CATION: KUKAftAfir t. AKI? RI?,

RYEY DATE: 07-1 O- 1996

WE Y ENSINEER: B. DM I ELL

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~-ON CHORD I NAT E S A T r O 11. D. ^F.. E'LiiVATIQN; O

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1MEMTS:

*** THIS DIRECTIONAL StJRVF.Y FiE^QRT 1.3 ****** C OR F.'E l". T 10 THt: 8E51 GF MY X.NOWL.EDGe ***

M i; r s SUP PCJR re.D BY ACTJAI/FIELD DAIAI *

t* * i LOf'PANY

t**** it

"C- MUMPER:

WELNAV NORTH BAY. ON,

IMRUN SURVEY BY MINIMUM

WELL NAMFi DDH COLLAR

BEDS,DOTH

Tftl/c VEST. L /RtLEV

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100.0200.3300.0400.0500.0

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yFLAG RESOURCES C19B5) LTD

Location Sketch

Deepened Drill Hole D: D. H. RL9B-OE-A RATHBUN TOWNSHIP

Claim 111730B S 1117309 CLJelnav Survey Data)

Scale - 1 : 2000 Aug/960 50m i ' ' -j- j— J m f T0 100ft

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FLAB RESOURCES C13B5J LTD

Location SketchtDeepened Drill KolaO'D.H. RLse-os-flRATHBUN TOWNSHIP

Claim 1U7306 S 11173OSCMelnay Survey Data)

Scale - l : EOOO Aug/96 O SOro

' *- -i ' -* FHT 100ft

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\

LAMONTAGNE GEOPHYSICS LTD l GEOPHYSIQUE LTEE

Saturday, September 21, 1996.

Mr. Murdo Macleod, President Flag Resources (1985) Limited Suite 1970 540 - 5th Ave SW, Calgary, Alberta, Canada T2P OM2

re: Final Report for UTEM survey Rathbun Lake Property, Sudbury, Ontario.

Dear Murdo:

You will find enclosed two copies of our final logistics report with an added comment regarding our thoughts and a field interpretation of these results.

This completes our "deliverables" according to our understanding with Flag Resources (1985) Limited. Our final invoice for this survey was forwarded to your attention in July and as yet remains outstanding. Immediate payment in full of this invoice would be appreciated.

I trust that you find the results of our services satisfactory and if I can provide you with any added service for your followup drilling please don't hesitate to contact me at your convenience. Good Luck with your follow-up programs throughout 1996.

Once again Murdo; Thank you for choosing to use the UTEM system.

With personal regards,

YSICS LTD

(ends) by courier

115 GRANT TIMMINS DKIVK, KINGSTON, ONTARIO K7L4V4 CANADA TEL. (613) 531-9950 * FAX (613) 531-8987

LAMONTACNF GEOPHYSICS LTD GBOPHYSIQUE LTBE

115 Grant Timmins Drive Kingston, Ontario K7L4V4 Phone 613-531-9950 Fax 613-531-8987No 2088

fTo

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FlaK Resources (1985) Limited

Suite IJ/J.Mfl^thQI^South,-r-QV" \ "* '^ "^ ft.N/- cfSRfcAib^ P&*

V f^rmoNfc*U * J

^ 1Date JulyS, 1996] Contact JohnMcCanco

Ship To

ATT: Murdo Mcleod

^ T .CI. lob # 9617

•\

J

Your Order

QUANTITY

1 Day

1 Day

1 Day

1/2 Day

2 Nights

2 Days

3 Days

TERMS:

# Date Shipped Shipped Via ,

f DESCRIPTION ;As requested the following work has been completed on

your behalf.

BH UTEM Survey ServicesProduction, 4 People

Standby, Loop Layout

Standby, 2 people, Loop Recovery ^ /-w-J! V-rcipEH^ U—————————— w^t-V-u* **^ ——— D&V ———

Vona^g.^sff r^^B. Polzer- .5Day ® 450.00*^

BH UTEM Survey ExpensesLodging in Chelmsford, 2 Rooms @ S45.00 ea.Meals, 4 People @ SMO.OO/DayTransporation 1-4x4 Truck @ S75.00/ day

ExpensesGas

SubtotalNet 30 DaysOur GST 102955747

UNIT PRICE

S2560.00S1520.00SI 280.00

S225.00

SISO.OOS280.00S225.00

S50.60

G- S. T. ^LSiLipgSKP.^.TwiO^tea"

TOTAL

S2560.00S1520.00S1280.00

S225.00

S180.00S280.00S225.00

S50.60

J|6S*0.600^442.44O |^63.04

50.00S6763.04

Ministry ofNorthern Developmentand Mines

Report of Work Conducted After Recording Claim

Mining Act

Transaction Number

OntarioPertontl Information collected on thia lorm is obtained under the authority of the Mining Act. Thla imormation will be used for corretpondence. Question* ab thia collection ahouW be directed to the Provincial Manager. Mining Land*, Mmiatry of Northern Development and Mines, Fourth Floor. 159 Cedar SIM Sudbury. Ontario, P3E 6A5. telephone (705) 670-7264

Instructions: pi A — -* ~- *'"*A J*r w* *: -*a f* r*f4 A I. Kni li . r* s4 , l r\\t S* '

R(RiA

. T(, ^ 41I15SE00462.1692SRATHBUN

gy -t f* O O C*

g assessment work or consult the Minin

900

Group.ate.jmpany this form.

Recorded Holder)*)FLAG RESOURCES (1985) LIMITED

AOdr* a^•. -e 1970-540-FTJFTH AVENUE S. W. , CALGARY, ALBERTA, T2P OM2Mining Orvtdon

SUDBURYDate* Work From: JUNE 20, 1996-7?^

Towninip/A/** RATHBUN

Client No.

(403) 262-8883M or Q Plan No.

W*/?/ TO: JULY 10, 1996Work Performed (Check One Work Group Only)

Work Group

Geotechnical Survey

Physical Work. Including Drilling

RehabilitationOther Authorized Work

Assays

Assignment from Reserve

TypeDOWNHOLE PROBE AND GYROSCOPIC DIRECTIONAT, SURVEY ( 'DH/Y&Oj

RECEIVEDDEC 6 - 1 qqfi

jfc

MINING LANDS BHANUM

Total Assessment Work Claimed on the Attached Statement of Costs S 9.363.00Note: The Minister may reject for assessment work credit all or part of the assessment work submitted if the recorded holder cannot verify expenditures claimed in the statement of costs within 30 days of a request for verification.Person* and Survey Company Who Performed the Work (Give Name and Address of Author of Report)NameIAMDNTAGUE GEOPHYSICAL LTDCBC WELNOV

Address115 GRANT TBWINS DRIVE, KINGSTON, ONT. , K7L 4V4160-PINEWDOD PARK DRIVE, NORTH BAY, ONT. , P1B 8H2

(attach a schedule If necessary)

Certification of Beneficial Interest * See Note No. 1 on reverse sidel certify that ai the time the work was performed, the claim* covered in thia work report were recorded In the current holder1 * name or held under a beneficial inter** by the current recorded holder.

Ode

OCT.18.96

Recori

1.1 fi*), MUKLAJ C.Certification of Work Reportl certify thai l have a peraonai knowledge of the fact* MI forth In ihla Work report, having performed the work or witneaatd same during tnd/or after Ka completion and annexed report la true.

Name and Addrea* of Penon CertifyingMURDO C. NCLEOD, SUITE 1970-540-FIFTH AVENUE S.W. CALGARY, ALBERTA, CANADA[Teiepooe No. 1(403) 262 8883

Dal* OCTOBER 18, 1996

flur*)

For Office Use Only MURDO C. MCLEOD

JftN-27-1997 09=58 FROM FLRG RESOURCES 262 8886 17056705681 P. 02

IO '

-.J

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ii

Fjl

1.

9.

bra* p*rtarm*J on p^inl*4 ** f

TOTflL P.02

Ontario

Ministry otNorthern Developmentand Mines

Ministere du Developpement du Nord et des mines

for Assessment Credit

Etat des couts aux fins du credit devaluation

Mining Act/Lot sur les mines

i ransacuon i

Personal information collected on this form is obtained under the authority

of the Mining Act. This information will be used to maintain a record and

ongoing status of the mining claim(s). Questions about this collection should

be directed to the Provincial Manager, Minings Lands, Ministry of Northern

Development and Mines, 4th Floor, 159 Cedar Street, Sudbury, Ontario

P3E 6A6, telephone (705) 670-7264.

Les renseignements personnels contenus dans la presente formule sont

recueillis en vertu de la Lol cur le* mine* et serviront a tenir a jour un registre

des concessions minieres. Adresser toute quesiton sur la collece de ces

renseignements au chef provincial des terrains miniers. ministere du

Developpement du Nord et des Mines, 159, rue Cedar, 4e etage. Sudbury

(Ontario) P3E 6A5, telephone (705) 670-7264.

1. Direct Costs/CoOts directs

Type

Wage* Salalres

Contractor's and Consultant's Fee*Drolts de ('entrepreneur •t d* I'expert- conaell

Supplies Used Foumltures utilities

Equipment Rental Location de materiel

Description

Labour Main-d'oeuvreField Supervision Supervision sur le terrain

Tyf^3edphysical LAMATAGUE

CBC WEXWAV

Type

Type

Amount Montant

$6763 $2600

9363

Total Direct Costs Total des couts directs

Totals Total global

9363

2. Indirect Costs/CoOts Indirects

* * Note: When claiming Rehabilitation work Indirect costs are not

allowable as assessment work.Pour le remboursement des travaux de rehabilitation, les

couts indirects ne sont pas admissibles en tant que travaux

devaluation.

Type

Transportation Transport

Food and Lodging Nourrlture et hebergementMobilization and Demobilization Mobilisation et demobilisation

Description

Type

O t r* *4 * 1 Gl

RECF \ \

;- D EC 6 - -K

1 MINING LANDS E

Amount Montant

rzi3

/ED

)96 |

RANCH

Sub Total of Indirect Costs Total partlel des couts Indirects

Amount Allowable (not greater than 20H of Direct Costs)

Montant admissible (n'excedant pas 20 H des couts directs)

Total Value of Assessment Credit Valeur totale du credit

(Total of Direct and Allowable devaluation Indirect coital (Total du coOlm dlracU

Totals Total global

•t Indirect! adiriMlbles

Note: The recorded holder will be required to verify expenditures claimed in

this statement of costs within 30 days of a request for verification. If

verification is not made, the Minister may reject for assessment work

all or part of the assessment work submitted.

Note : Le titulaire enregistre sera tenu de verifier les depenses demandees de

le present etat des couts dans les 30 jours suivant une demande A c

effet. Si la verification n'est pas effectuee, le ministre pout rejeter t*

ou une partie des travaux devaluation preserves.

Filing Discounts

1. Work filed within two years of completion is claimed at tOO'to of

the above Total Value of Assessment Credit.

2. Work filed three, four or five years after completion is claimed at

SO'Vb of the above Total Value of Assessment Credit. See

calculations below:

Total Value of Assessment Credit Total Assessment Claimed

x 0.50

Remises pour depot

1. Les travaux deposes dans les deux ans suivant leur achevement sor

rembourses a 100 'ft de la valeur totale susmentkxinee du credit d'evaluat

2. Les travaux deposes trois, quatre ou cinq ans apres leur achevem

sont rembourses a 50 "to de la valeur totale du credit d'evaluat

susmentionne. Voir les calculs ci-dessous.

Valeur totale du credit devaluationx 0,50 -

Evaluation totale demand)

Certification Verifying Statement of Costs

l hereby certify: ,that the amounts shown are as accurate as possible and these costs

were incurred while conducting assessment work on the lands shown

on the accompanying Report of Work form.

PRESIDENT that as (Recorded Holder, Agent, Position in Company)

to make this certification

Attestation deM'etat des couts

J'atteste par la presents :

que les montants indiques sont le plus exact possible et que

depenses ont ete engagees pour effectuer les travaux d'evalua

sur les terrains indiqu6s dans la formule de rapport de travail ci-ji

l am authorized Et qu'a titre de . je suis autc(titulaire enregistre, representant, poste occupe dans la oompagnie)

^ faire cette attestation._______^ ,'l

JPDO C. MCLBOD

Oat*

02t2 (W/91)

Nota : Dans cette formule, lorsqu'il designe des personnes, le masculin est utilis* au sens r

Ministry ofNorthern Developmentand Mines

January 30, 1997

Roy DenommeMining Recorder933 Ramsey Lake Road, 3rd FloorSudbury, ONP6E 6B5

Ministere du Developpement du Nord et des Mines Ontario

Geoscience Assessment Office 933 Ramsey Lake Road 6th Floor Sudbury, Ontario P3E 6B5

Telephone: Fax:

(705) (705)

670-5853 670-5863

Dear Sir or Madam:

Subject: Transaction Number(s): W9670.00156

Submission Number: 2.16925

StatusApproval After Notice

We have reviewed your Assessment Work submission with the above noted Transaction Number(s). The attached summary page(s) indicate the results of the review. WE RECOMMEND YOU READ THIS SUMMARY FOR THE DETAILS PERTAINING TO YOUR ASSESSMENT WORK.

If the status for a transaction is a 45 Day Notice, the summary will outline the reasons for the notice, and any steps you can take to remedy deficiencies. The 90-day deemed approval provision, subsection 6(7) of the Assessment Work Regulation, will no longer be in effect for assessment work which has received a 45 Day Notice.

Please note any revisions must be submitted in DUPLICATE to the Geoscience Assessment Office, by the response date on the summary.

NOTE: This correspondence may affect the status of your mining lands. Please contact the Mining Recorder to determine the available options and the status of your claims.

If you have any questions regarding this correspondence, please contact Bruce Gates by e-mail at gatesjD®ton/05.ndm.gov.on.ea or by telephone at (705) 670-5856.

Yours sincerely,

ORIGINAL SIGNED BYRon C. GashinskiSenior Manager, Mining Lands SectionMines and Minerals Division

Correspondence ID: 10524

Copy for: Assessment Library

Work Report Assessment Results

Submission Number: 2 .16925

Date Correspondence Sent: January 30, 1997 Assessor: Bruce Gates

Transaction First ClaimNumber Number Township(s) l A rea(s) Status Approval Date

W9670.00156 1117306 RATHBUN Approval After Notice January 28, 1997

Section:14 Geophysical DHGEO 19 Rehabilitation OTHER

The revisions outlined in the Notice dated January 14, 1997, have been corrected. Accordingly, assessment work credit has been approved as

outlined on the 'revised' Declaration of Assessment Work Form accompanying this submission.

Correspondence to: Recorded Holder(s) and/or Agent(s):

Mining Recorder FLAG RESOURCES (1985) LIMITED

Sudbury, ON CALGARY, ALBERTA

Resident Geologist Sudbury, ON

Assessment Files Library Sudbury, ON

Page: lCorrespondence ID: 10524

y -' ,

R IK l NN S K1 P

l l rt4- 119

Point J.......- •""' '' *' •'....•'

'••t——

RESERVE

*—'*4r-

WHINS RIGHTS OF THE LANO AND THE LAND UNDER THE WATERS OF WANAPITEI LAKE \ ARE WITHDRAWN FROM STAKING OUT UNDER SEC. 39 Of THE MIMtttt ACT,ORDER NO. S7/T*

t J DATED NOV. 17, tt?* FILE 75*4 VOL.*

A- P l T E l A K E

Portage Bay

SYMBOLS DISPOSITION OF CROWN LANDSMinistry of Ministry of Natural Northern Development

and Mines BoundaryTownship, Meridian, Baseline

Road allowance; surveyed shoreline

Pattnt. Surface A Mining Rights

Surface Rights Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9' Mining Rights Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .O

Leasei* .

Surface 4 Mining RightsSurface Rights Only . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . .HMining Rights Only . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . , , . . . , . . ./. . .Q

Resources

INDEX TO LAND DISPOSITION Lot/Concession; surveyed unsurveyed

Farced; surveyedM.N.R. ADMINISTRATIVE DISTRICTPLAN

G-4093TOWNSHIP

THE INFORMATION THAT CI tfSOl IDVAPPEARS ON THIS WAP OUUDUnTHAS BEEN COMPILED FROM VARIOUS SOURCES, AND ACCURACY IS NOT i GUARANTEED. THOSE j WISHING TO STAKE MIN ING CLAIMS SHOULD CON- LAND TITLES/REGISTRY DIVISIONSULT WITH THE MININGRECORDER, MINISTRY OF Q l l H R l l R Y NORTHERN DEVELOP- OUL/DUni MENT AND MINES, FOR AD DITIONAL INFORMATION

unsurveyed............................. —————y—Right-of-way; road ".......7.....7.........'.......

railway ...... ; ..................... 3utility........'?..^..................

' Reservation

Cliff, Pit, Pile

Licence of Occupation . . , . . . . . . . . . . . . . , , ,. . . . . , , . . . . . . . . y . . . ...Order-in-Council. . . . , . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . ."'. . : .. , OC

SUDBURY Cancelled '. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T . , . . . . . . . . . . . . .Reservation . .

Sand&Gravel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ! . . . . . . . . . . . . . ORATHBUNInterpolatedApproximateDepression

Control point (horizontal) ...................................... A

Flooded land....................:................. ------Mine head frame .............................................. a

Pipeline (above ground)

Railway; single track

2. 16925 ON THE STATUS OF THE LANDS SHOWN HEREON. AREAS WITHDRAWN FROM DISPOSITION

MRO- Mining Rights Only 9^8334SRO- Surface Rights OnlyM -i- S - Mining and Surface Rights

Description Order No. Date Disposition FM

SEC.86/80 W.67/76 17/11/78 MRO 7598 vol.92/06/84————M-6VS

FLOODING RI8HTS ALON0 THE IHORES OR WANAPITEI LAKE AND ISLANDS ^CONTAINED THEREIN TO ELEV. 100.5'(CREST OF DAM) RESERVED TO ONTARIO HYDRq. L.O.ISLANDS INWANAPITCI LAKE WITHDRAWN FROM STAKING UNDER SEC. 38(c)

OF WININO ACT R.S.O. 1970 NOV. 23, 1*26.Contour Interval 10 Metres

Road; highway, county, township access trail, bush

Shoreline (original)

Transmission line

Wooded area

Map base and land disposition drafting by Surveys and Mapping Branch, Ministry of Natural Resources.

The disposition of land, location of lot fabric and parcel boundaries on this index was compiled for administrative purposes only.

l 80 80*46'

rpt on utem survey · l a single loop of 800 metres by 900 metres was deemed sufficient to provide...

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