Application of complex trace analysis for improved target identification in gem-tourmaline-bearing pegmatites in the Himalaya mine, San Diego County, California

Jeffrey E. Patterson; Frederick A. Cook

doi:10.1117/12.383537

27 April 2000 Application of complex trace analysis for improved target identification in gem-tourmaline-bearing pegmatites in the Himalaya mine, San Diego County, California

Jeffrey E. Patterson, Frederick A. Cook

Author Affiliations +

Proceedings Volume 4084, Eighth International Conference on Ground Penetrating Radar; (2000) https://doi.org/10.1117/12.383537
Event: 8th International Conference on Ground Penetrating Radar, 2000, Gold Coast, Australia

Abstract

Gem bearing miarolitic cavities in rare metal, lithium enriched, granitic pegmatites pose challenging exploration targets, as they are not readily identifiable using normal geophysical methods. Application of ground penetrating radar (GPR) has been successful in delineating gem-bearing zones in the Himalaya pegmatite mine in San Diego County, California. Careful setup and data processing, using complex signal analysis, have so far allowed us to distinguish between gem- bearing pockets, non-gem bearing pockets, and barren/frozen dike. Each of us independently hypothesized, in 1995, that GPR could be an appropriate tool for gemstone exploration in the subsurface exposures in adits, drifts and stopes of many gem mines (Patterson, 1996; Cook, 1997). The culmination of these efforts was reached in June, 1998, with the first documented discovery of gem tourmaline pockets using this technique.

Citation Download Citation

Jeffrey E. Patterson and Frederick A. Cook "Application of complex trace analysis for improved target identification in gem-tourmaline-bearing pegmatites in the Himalaya mine, San Diego County, California", Proc. SPIE 4084, Eighth International Conference on Ground Penetrating Radar, (27 April 2000); https://doi.org/10.1117/12.383537

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