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Bergvesenet

Rapportarkivet

Postboks3021. N-7441Trondheim

f

Bergvesenet rapport nr 1 Intern Journal nr Internt arkiv nr ' Rapport lokalisefing Gradering

7195

Kommer fra ..arkiv Ekstern rapport nr Oversendt fra Fortrolig pga Fortrolig fra dato:

Ni & Ol A/S Ni & Ol A/S

Tittel

I Geophysical Surveys at Nikkel og Olivin Mine in Ballangen, NORWAY

Forfatter

Launla, Tero Dato dkr

Bedrift (Oppdragsgiverogieller oppdragstaker) Soumen Malmi OY Kommune Fylke Ballangen Nordland Bergdistrikt €1: 50 000 kartblad 11331 1 1: 250 000 kartblad Narvik Fagområde Geofysikk

Dokument type Forekomster (forekomst, gruvefelt, undersokelsesfelt) Bruvannsfeltet Rana Rastoffgruppe Malm/metall Råstofftype Cu, Ni SWAXIMMSNWSW,W, MW,V,

Sarnrnendrag, innholdsfortegnelseeller innholdsbeskrivelse

Rapporten beskriver magnetiske-, slingram Max-Min, borhullslogging av motstand og ledningsevne, samt magnetisme og susceptibilitet. Til slutt misse-a -la-masse.

Måleresultatene er overlevert som kart uten kommentar. For tolkning, se BV-rapp 7196 Det er vedlagt diskett med maleresultater

(2)

NIKKEL OG OLIVIN AS

GEOPHYSICALSURVEYSAT NIKKEL OG

OLIVIN MINE IN BALLANGEN, NORWAll

Espoo, 5 January, 1996

SUOMEN MALMI

Box 10, F1N - 02921 ESPOO TEL + 358-0-8524 010 FAX + 358-0-8524 0123

(3)

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7*;.-NIKKEL OG OLIVIN AS

GEOPHYSICALSURVEYSAT NIKKEL OG

OIIVIN MINE IN RALIANGEN, NORWAY

(5)

GEOPHYSICAL SURVEYS AT NIKKEL OG OLIVIN MINE IN BALLANGEN,

NORWAY

1NDEX

GENERAL

2

SURVEY AREA

STAKING

4

MAGNETIC SURVEY

5

SLINGRAM SURVEY

BOREFIOLE LOGGINGS

MISE-A-LA- MASSE SURVEY

APPENDICES

(6)

GENERAL

This report describes geophysical surveys at Nikkel og Olivin Mine in Ballangen, Norway. The surveys were carried out on behalf of Nikkel og Olivin AS (the Corporation) by Suomen Malmi Oy (the Contractor) during the period 13

11-18.12.1995.

The aim of the survey was to delineate geological structures.

The work consisted of geophysical surveys according to the invitation of tender dated on 23rd October 1995 (0MR) and order dated on 1st November 1995 (Nikkel og Olivin AS). The survey plan was made by the Corporation. The field crew consisted of one foreman and two observers. The duration of the field work was 29 days

SURVEY AREA

The survey area is located at Nikkel og Olivin Mine in Ballangen about 35 km west of the city of Narvik in northern Norway. The size of the area where slingram and magnetic surveys were carried out is about 1.7 km x 1 km. The borehole loggings and the mise-å-la-masse survey were made at the mine site.

STAKING

The lining was made by using a Sokkisha theodolite and a measuring tape The survey lines were orientated by using compass. Totally 1000 m of E-W base line and 3600 m of N-S rapid base line were staked.

MAGNETIC SURVEY

An automatically reading Scintrex Envi-Mag proton magnetometer was used in the survey. As a base station a Scintrex MP-2 magnetometer equipped with a KTP data logger was used

A standard procedure for magnetic total field survey was applied. The station interval was 10 m and the line spacing was 50 m. Totally 3,475 points were measured.

The results are presented as total field magnetic profile maps and as color maps in appendices 2, 3, 13 and 14. Digital field data on a data diskette in Geosoft format is enclosed to this report.

(7)

SLINGRAM SURVEY

An APEX Max Min I HLEM system was used in the survey. Measuring frequencies

were 220 Hz, 1,760Hz and 7,040 Hz and the coil separation was 100 meters.

The station interval was 20 m and the line spacing was 50 m. Totally 1,723 points

were measured.

The results are presented as profile maps and color maps in appendices 4 - 12 and

5 - 23. Digital field data on a data diskette in Geosoft fonnat is enclosed to this

report.

BOREHOLE LOGGINGS

In the borehole survey, an OMS-logg borehole logging system consisting of a

hand-held computer and a drill hole interface was used. The measured parameters were

galvanic resistivity (wenner array), conductivity, susceptibilityand 3-components of

the magnetic field.

The survey interval for the 3-component magnetic survey was 5 m, for the other

components the survey interval was 0,1 m. The loggings were made in two holes.

Totally 2,793 m were logged.

The results are presented in appendices 24 - 31. Digital field data on a data diskette

is enclosed to this report.

MISE-K-LA-MASSE SURVEY

In mise-å-la-masse (MAM) measurements, a Gefinex 100 system made by

Outokumpu Oy was used.

The field work was done according to the client's instructions. The amount of the

work was 208 man hours.

The results were delivered as data sheets to the client on the field.

Espoo, 5th January, 1996

n

LL,C

jkaLut

(

c

Tero Laurila, Eng

Suomen Malmi Oy

(8)

8. APPENDICES

I.

Location map of the survey area

GROUND SURVEYS

Magnetic profile map

Magnetic color map

Slingram profile map

Slingram color map

Slingram color map

Slingram profile map

Slingram color map

Slingram color map

Slingram profile map

Slingram color map

Slingram color map

Magnetic profile map

Magnetic color map

Slingram profile map

Slingram color map

Sfingram color map

Slingram profile map

Slingram color map

Slingram color map

Slingram profile rnap

Slingram color map

Slingram color map

BOREHOLE LOGGINGS

Susceptibility

Conductivity

Resistivity

3-component magnetic

Susceptibility

Susceptibility

Conductivity

Conductivity

Resistivity

3-component magnetic

1:10 000

1:5 000

1 5 000

Re- and Im- cornponent

1:5 000

Re- component

1:5 000

Im- cornponent

1:5 000

Re- and Im- components

1:5 000

Re- component

1:5 000

Im- component

1:5 000

Re- and Im- components

1:5 000

Re- component

1:5 000

Im- component

1:5 000

1:10 000

1:10 000

Re- and Im- components

1:10 000

Re- component

1:10 000

Im- component

1:10 000

Re- and Im- components

1:10 000

Re- component

1:10 000

Im- component

1:10 000

Re- and Im- components

1:10 000

Re- component

1:10 000

Im- component

1:10 000

hole 235-120

1:2 000

hole 235-120

1.2 000

hole 235-120

1:2 000

hole 235-120

1:2 000

hole 245-125

1:2 000

hole 245-125

1:2 000

hole 245-125

1:2 000

hole 245-125

1:2 000

hole 245- I25

1:2 000

hole 245-125

1:2 000

f = 220 Hz

f = 220 Hz

f=

220 Hz

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f = 1760 Hz

f = 1760 Hz

f= 7040 Hz

f = 7040 Hz

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f=

220 Hz

f = 220 Hz

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220 Hz

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f = 1760 Hz

f = 1760 Hz

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f = 7040 Hz

f = 7040 Hz

(9)

\PIT

B \I I \\GEV \ORW\l' \ikkel oLt Olnin \ Local RIll map of the

CN d 10 000 I tn. ';\101 aml - \;. N / 711 o re

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777-1 BOUNDARY OF SURVEY AREA MEASURING DIRECTION

I

TX 300 500 C o N , 300 o o re

(10)
(11)

APPENDIX

3

52196 52184 52176 52168 52162 52158 52152 52148 52142 52138 52134 52130 52126 52120 52118 52110 52104 52094 52082 52064 wr

(12)

APPENDIX 4

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APPENDIX

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APPEND1X 10

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(25)
(26)
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(32)

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JJ

Piir:

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(34)

lg 0-m

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200

111

250

300

350

400

(36)

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4000

3000

2000

1000

6

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SUSCEPTIB

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1

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Piir:

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=

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Mitt:

19.11.95

JJ

Piir:

04.01.96

SMOY/aml

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SZ

XICINHeldV

(38)

mV

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80

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1

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Mitt:

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Piir:

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2

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rnV

1000

800

600

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200

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Mitt:

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Piir:

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19.11.95

JJ

Piir:

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ni tjj 0

(41)

APPENDIX 31

BALLANGEN

HOLE

245-125

DIP=90.0°

DEG=131.8°

1: 2000

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field

52650

nT

INK=76.4°

DEG=

0.00

2000

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-200

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0

100

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300

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