2. L e wan t 0 A. E. - A three - component magne-tometer for small drill-holes and its use in ore . prospecting. Geophysical Prospecting Vol.
vIi,
1959,nr 2.
3. Le wan t
0
A. E. - On magnetic measurements in drill~holes. Geoexploration 1963, nr 2.4. Z u b e r J. A. - Magnetische Bohrlochmessungen
SUMMARY
The article discusses the usefulness of magnetic logg-· ing in reconnaissance and in search for iron ore depo-sits. As an example a comparison is presented of the results of magnetic logging measurements. Moreover, . the article contains a short characteristic of bore-hole magnetometer used in the USSR.
On the other hand, the usefulness of Swedish bore--hole magnetometer HBM-III in search for iron ore deposits is broadly discussed and its range and accu" racy are presented. In addition, the construction of this magnetometer is illustrated and the way of using measurement results is given, as well. Furthermore, author's conclusions are quoted emphasizing all the advantages that result from application of magnetic logging in Poland.
als Hilfsmittel bei der Erzprospektierung. Berg- und Hilttenmannische Monatshefte, Stockholm 107, Jahr • gang, 1962, H. 8.
5. I n· s t r u k c j a magnetometru otworowego trzech skladowych Hetona HBM 2. ABElVI Geophysical In-strument Bulletin BM. 0862. Stockholm.
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