By J. H. Reedman B.Sc., M.Phil., M.I.M.M. (auth.)
For a few years i've got felt there has been a necessity for a unmarried, comprehen sive, reference ebook on exploration geology. quite a few textbooks can be found on topics akin to geophysical prospecting, exploration geochemistry, mining geology, photogeology and basic monetary geology, yet, for the geologist operating in mineral exploration, who doesn't require a specialist's wisdom, a common publication on explora tion concepts is required. Many undergraduate college classes are inclined to forget monetary geology and few care for the extra prac tical facets in any aspect. Graduate geologists embarking on a profession in fiscal geology or mineral exploration are accordingly frequently poorly built and feature to profit a substantial quantity 'on the job'. via offering a ebook that incorporates fabric that are present in many of the general texts including a couple of sensible elements to not be chanced on in different places, i am hoping that either fresh graduates and more matured exploration geologists will locate it an invaluable reference paintings and guide. additionally, scholars of monetary geology and group of workers operating in similar fields within the mining and mineral extraction in dustries will locate it informative. J. H. REEDMAN v Acknowledgements the writer wish to thank Dr ok. Fletcher, geochemist with the dep. of Geology, college of British Columbia, and Kari Savario, geophysicist with Finnish Technical reduction to Zambia, for studying the unique drafts and delivering confident feedback and suggestion at the chapters on geochemical and geophysical prospecting respectively.
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Additional info for Techniques in Mineral Exploration
BERYLLIUM 2. Pneumatolytic 1. Pegmatites Beryl and other beryllium minerals OCCURS IN GRANITIC occur in quartz-muscovite and PEGMATITES AS BERYL quartz-topaz greisens associated (Be3AhS~018)-also as other with cassiterite and wolfram. Not an berylosilicates which may be of economic source of beryllium at importance. Beryllium minerals also present. occur in alkaline pegmatites, but none of the associations with alkaline rocks has proved economic. (Saleable ore> 10% BeO, grades worked> 0·1% BeO) 3.
Hydrothermal 2. Magmatic Molybdenite often occurs MOLYBDENITE OCCURS IN disseminated in acid igneous DEPOSITS IMTIMATELY intrusives. ASSOCIATED WITH ACID IGNEOUS INTRUSIONS SUCH 3. Pegmatites AS AT CLIMAX, COLORADO, Molybdenite may occur in WHERE MOLYBDENITE pegmatites which are often rich and OCCURS IN QUARTZ VEINLETS may contain large, coarse IN GRANITE. MANY PORPHYRY molybdenite crystals. Due to the COPPER DEPOSITS ALSO small size of such deposits they are CONT AIN MOLYBDENUM not an important source and are WHICH IS A VALUABLE BYgenerally sub-economic.
Occasionally secondary minerals in oxidized zones are important ores. ) 2. Sedimentary STRATIFORM LEAD-ZINC DEPOSITS IN CARBONATE ROCKS ARE IMPORTANT SOURCES OF ZINC. 4. Metamorphic Sphalerite may occur with other sulphides in contact metamorphic deposits-CAN BE IMPORTANT SOURCE. Franklinite and secondary zinc minerals such as zincite (ZnO) and willemite (Zn2 Si04) occur in 3. Volcanogenic unique deposits at Franklin Sphalerite occurs in massive sulphide Fumance, New Jersey. deposits in volcano-sedimentary sequences.
Techniques in Mineral Exploration by J. H. Reedman B.Sc., M.Phil., M.I.M.M. (auth.)