Development work in the field of mineral borehole logging was made in the areas of instrumentation, field testing, data processing and interpretation. / Instrumentation work included a VLF logging tool compatible with a field digital computer configured to perform log instrumentation control, numerical data acquisition and recording together with video screen graphic display. Significant improvements in the overall precision and reliability of the logging operation has been realized through the use of digital technology. / The field tests included the measurements of the following parameters: electrical resistivity, induced polarization, spontaneous polarization, electromagnetic field ratio and phase difference and temperature. The tests were performed for a wide variety of environments and targets including massive and disseminated sulfides, structural problems, coal and gold fields on properties located in Eastern Canada from Sudbury to Cape Breton Island. / The interpretation of the data yields information complementing core information such as detection of materials with some electric property contrast, localization of off-hole mineralization both in massive and disseminated form and determination of absolute value of specific in-situ rock physical properties. A better understanding of several underground processes (such as SP, uniform field induction, etc.) has resulted from the project.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.76741 |
| Date | January 1984 |
| Creators | Roy, Jean, 1943- |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Mining and Metallurgical Engineering.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000216828, proquestno: AAINK66602, Theses scanned by UMI/ProQuest. |
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