Abstract Interactions between meteoric water and ultramafic rocks in the Oman Ophiolite generate waters of variable physicochemical characteristics. The discharge of these waters forms complex alkaline pool networks, in which mineral precipitation is triggered by mixing, evaporation, and uptake of atmospheric CO2. A systematic and co-localized sampling of waters and solids in two individual spring sites allowed us to determine the saturation state of a range of minerals and correlate them to the different water and precipitate types. We subdivided the waters of the spring sites into three distinctive types: i) Mg-type; moderately alkaline (7.9 11.6), Ca2+–OH−-rich waters, and iii) Mix-type; alkaline to hyperalkaline (9.6

中文翻译：

---

关于碱性泉中矿物组合和质地的控制，萨迈尔蛇绿岩，阿曼

摘要 阿曼蛇绿岩中的大气水和超镁铁质岩石之间的相互作用产生了具有不同物理化学特征的水。这些水的排放形成复杂的碱性池网络，其中矿物沉淀由大气 CO2 的混合、蒸发和吸收引发。在两个单独的泉水地点对水和固体进行系统和共定位的采样，使我们能够确定一系列矿物质的饱和状态，并将它们与不同的水和沉淀物类型相关联。我们将泉水分为三种不同的类型：i) Mg 型；中度碱性 (7.9 11.6)，富含 Ca2+–OH− 的水，和 iii) 混合型；碱性至高碱性 (9.6