As temperature and pressure sharply drop, oxidization speed multiplies, and the acidity or alkalinity changes, the hydrides decompose, hydrolyze, oxidize, sulfurize, settle down and enrich into various mineral deposits. 由于压力、温度骤降,氧逸度剧增,酸碱度发生变化,上述氢化物分解、水解、氧化、硫化沉淀富集形成各种矿床。