%0 Journal Article
%T The high-pressure structure of kaersutite and its geological importance<br>钛闪石的高压结构及其地质意义
%A ZHU XiangPing
%A QIN Shan~ HAN BaoFu~
%A LIU Jing~
%A LI XiaoDong~
%A WU Xiang~
%A WU ZhongHua~
%A <br>祝向平
%A 秦善
%A 韩宝福
%A 刘景
%A 李晓东
%A 巫翔
%A 吴忠华
%J 岩石学报
%D 2004
%I 
%X The in-situ tigh-pressure structure of natural kaersutite, obtained from the mantle xenolith in alkali basalt of southwestern Tiandhan in Xinjiang, has been studied using synchrotron radiation energy dispersive X-ray diffraction and diamond anvil cell at the pressures up to 25.4 GPa. At room temperature, the lattice constants a. b, c of kaersutite are compressed continuously with increasing pressure and at the pressure of 18.9 GPa, a phase transition occurs probably due to the dehydration. Considering the geological occurrence of kaersutite, the experimental results indicate that kaersutite could be stable with rather a depth in the upper mantle, and it must be a rapid process when kaersulite is brought to the earth's surface. In addition, this research would be potentially helpful for the understanding of high-pressure behaviors of other Ti-bearing minerals.
%K kaersutite
%K high-pressure
%K structure
%K synchrotron radiation<br>钛闪石
%K 高压
%K 结构
%K 同步辐射
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=621CF755B1A341E5&jid=2013B5467E3054B1614CEC199353FCED&aid=63B645E5C8FE1586&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=B31275AF3241DB2D&sid=E5EC537789D37C32&eid=A31FC75D5A96DC31&journal_id=1000-0569&journal_name=岩石学报&referenced_num=1&reference_num=18