| 1 | Studies show that the three largest types of mineral deposits in China are deposits related to alkaline rocks, granitic rocks and granitic pegmatites respectively. | |
| 2 | Ore-bearing rock body is located at the top of" magma tree" within the belt of dimicaceous granite-granitic pegmatite. | |
| 3 | The results of this study are significant in understanding the compositions, forming mechanisms and origins of pegmatites. | |
| 4 | There is high tantalite grade for certain large scale granite-pegmatite pattern tantalite -columbite mine in our country. | |
| 5 | The types of deposits basically are differential metasomatism in the later magma, pneumatolytic hydrothermal process, pegmatite process, residual deposits and placer deposits. |
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