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Geophysical Surveys for Gold Exploration in The Gunung Ledang Area, Johore : RAK (C11) (Record no. 892)

000 -LEADER
fixed length control field 01571nam a22001217a 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 170111t1987 my 000 0 eng
245 ## - TITLE STATEMENT
Title Geophysical Surveys for Gold Exploration in The Gunung Ledang Area, Johore : RAK (C11)
250 ## - EDITION STATEMENT
Edition statement GF 01/1987
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of publication, distribution, etc. Ipoh, Perak:
Name of publisher, distributor, etc. Makmal Penyiasatan Kajibumi,
Date of publication, distribution, etc. 1987
300 ## - PHYSICAL DESCRIPTION
Extent ill. 15 p., 29.8 cm
500 ## - GENERAL NOTE
Executive Summary Summary.<br/>Geophysical measurements have been made in an area within the Gunung Ledang map sheet which has been delineated as anomalous in gold by geochemical stream sediment and concentrate sampling. This was done in order to investigate its structure, and in particular, to delinated fracture zones within which the gold is likely to occur. VLF-EM and resistivity measurements have detected linear NNE and NNW trending conductive structures which probably represent theses fractures. The magnetic survey showed an absence of strongly magnetic mineralization and rock types in the area. Futher geophysical measurements would only be justified if subsequent investigation shows that there is a correlation between gold content and the geophysical anomalies.<br/><br/>The line spacing of 200m is larger than desirable to give reliable continuity of structures from one line to the next, but the geophysical survey was designed to cover as large an area as possible within the time available and to test the usefulness of a variety of methods. The tests showed that the VLF method alone is sufficient to detect conductive structures in this area, so additional lines could be surveyed quickly and cheaply.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
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