
Geology and genesis of the Baid al Jimalah tungsten deposit, Kingdom of Saudi Arabia
Economic Geology
By: R.J. Kamilli, J.C. Cole, J.E. Elliott, and R.E. Criss
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Abstract
The Baid ad Jimalah tungsten deposit in Saudi Arabia consists predominantly of swarms of steeply dipping, subparallel, tungsten-bearing quartz veins and of less abundant, smaller stockwork veins. It is spatially, temporally, and genetically associated with a 569 Ma, highly differentiated, porphyritic, two-feldspar granite that intrudes Late Proterozoic immature sandstones. Baid al Jimalah is similar in character and origin to Phanerozoic tungsten-tin greisen deposits throughout the world, especially the Hemerdon deposit in Devon, England. It is also analogous to Climax-type molybdenum deposits, which contain virtually identical mineral assemblages, but with the relative proportions of molybdenum and tungsten mineralization reversed, primarily owing to differences in oxygen fugacity. This similarity in mineralization styles and fluid histories indicates that metallogenic processes in granite-related deposits in the late Precambrian were similar to those seen in the Phanerozoic. -from Authors
Additional publication details
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Geology and genesis of the Baid al Jimalah tungsten deposit, Kingdom of Saudi Arabia |
Series title | Economic Geology |
Volume | 88 |
Issue | 7 |
Year Published | 1993 |
Language | English |
Larger Work Type | Article |
Larger Work Subtype | Journal Article |
Larger Work Title | Economic Geology |
First page | 1743 |
Last page | 1767 |