supported by National Natural Science Foundation of China (Grant Nos. 40676038, 40730844, 40406011);the Knowledge Innovation Project of the Chinese Academy of Sciences (Grant No. KZCX2-YW-228);Guangdong Natural Science Foun-dation (Grant No. 0700420);National Basic Research Program of China (Grant No. 2007CB815904)
Aluminum is an active amphoteric metal element, but native aluminum (Al°) can be formed and preserved in special condi- tions so that its occurrence has unique geological significance. In this paper, the coarse fract...