The ore - forming fluid is derived from magma activity , with rich co2 and alkali materials , in a weak reduction and medium - high temperature environment 金矿成矿热液主要来源于岩浆,为具有富含co2等挥发组分的富碱质、弱还原的中高温流体。
The analyses of oxygen and hydrogen isotope indicate that the hydrothermal fluid is dominated by magmatic water with input of a lot of meteoric and underground water in the later stage 包裹体的氧、氢同位素特征表明,成矿热液虽以岩浆水为主,但在晚期有较多天水及地下水的混入。
Deep and sub fissures were advantageous fields for ascending and assembling of the ore - forming thermal fluid . in addition , gritstone and mudstone provided the condition for the atmospheric water ' s descending 深大断裂及次级断裂是深部成矿热液上升和汇集的优良场所,周围砂岩和泥岩又为大气降水的渗透提供了条件。
Now , sr isotopes can be used not only to constrain the origin and evolution of magma and hydrothermal ore - forming solutions , calculate the scale and degree of lithogenesis and ascertain the relations between fluids and rocks , but also to study sea - level fluctuation , plate movement , ocean - floor spreading and lithogenic evolution 现在,锶同位素不仅在示踪岩浆及成矿热液的来源和演化、计算晚期成岩改造作用的规模和程度及流体/岩石比等方面已趋于成熟,并且越来越广泛运用于海平面变化、板块活动、海底扩张、成岩演化等方面的研究。