Diamond Exploration and Resource Evaluation of Kimberlites
| Autor: | Nicole Januszczak, Johann Stiefenhofer, Bruce A. Kjarsgaard |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Resource (biology)
010504 meteorology & atmospheric sciences Geochemistry and Petrology Earth science Earth and Planetary Sciences (miscellaneous) engineering Diamond engineering.material 010502 geochemistry & geophysics 01 natural sciences Kimberlite Geology 0105 earth and related environmental sciences |
| Zdroj: | Elements. 15:411-416 |
| ISSN: | 1811-5217 1811-5209 |
| DOI: | 10.2138/gselements.15.6.411 |
| Popis: | Kimberlites are the main source of natural gem-quality diamonds. The intrepid diamond explorer faces three major problems. First, finding a small, usually less than 300 m diameter, kimberlite, which is often highly weathered. Second, evaluating the quantity of diamonds within a kimberlite that often consists of multiple phases of intrusive and extrusive kimberlite, each with potentially different diamond grades. Third, evaluating the rough diamonds, the value of which is dependent on carat-weight, shape, colour, and clarity. Modern advances in mantle petrology, geophysics, geochemistry, geomorphology, and geostatistics now complement historical exploration knowledge and aid in selecting prospective target areas, resource estimation, and evaluating kimberlite-hosted diamond deposits. |
| Databáze: | OpenAIRE |
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