NaCl-CaCl_2-H_2O体系人工合成流体包裹体及其冷冻后的熔融行为研究

Melting and dissolution behaviors of frozen synthetic fluid inclusion for the system NaCl-CaCl_2-H_2O

在倪培等在2003年和丁俊英等在2005年成功开展人工合成包裹体研究的基础上,利用愈合人工水晶裂隙技术,在设定的实验条件下合成了 NaCl-CaCl_2-H_2O 体系的流体包裹体。对合成的包裹体进行了岩相学观察,显微测温工作,并结合相应相图分析研究——主要对合成包襄体的低温熔融行为进行探讨。结果表明合成的包裹体捕获了既定组成的流体,其低温相变过程与相应相图吻合。因此,人工合成流体包裹体与天然包裹体相似,天然流体包襄体的各种行为可以参照人工合成流体包裹体;同时,通过人工合成流体包裹体校正补充实验相图,使其更准确的被应用于天然包襄体测定分析。

After the studies on synthetic fluid inclusions by Ni et al, in 2003 and Ding et al. in 2005, synthetic fluid inclusions for the system NaCI-CaCl2-H2O were formed by healing the artificial cracks in the crystal, Petrographic and microthermometric measurements were conducted on these synthetic fluid inclusions. The melting and dissolution behavior of these inclusions were discussed based on the phase diagram. The synthetic inclusions trapped the primary solution, and the cryogenic behaviors were consistent with the phase diagram of NaCI-CaCl2-H2O system, therefore the results obtained from synthetic fluid inclusions can be applied to the natural fluid inclusions. Synthetic fluid inclusions can improve the phase diagram and on analysing the natural inclusions.