Generation of uranium was closely related to migration and escaping of natural gas and may be also relevant to hydrothermal solution activities during epigenesis period.

铀的形成主要与天然气的运移和逸散有关，也可能与后生阶段的热液活动有关。

In this paper the relationship between the crystal forms and the growth mechanism of quartz and tinstone under the hydrothermal solution conditions has been studied.

本文研究了热液条件下，水晶和锡石的结晶形态和生长机制的关系，提出了水晶和锡石的生长基元为配位负离子多面体结构。