The solubility of alumina in orthopyroxene coexisting with garnet
The solubility of alumina in orthopyroxene coexisting with garnet
复制标题
DOI：
10.1007/bf00377989
复制
发表时间：
1974-03
影响因子：
3.5
通讯作者：
B. Wood
中科院分区：
文献类型：
--
作者：
B. Wood
在8-30 Kb和800-1250° C的压力-温度范围内，测定了氧化铝在与石榴石平衡结晶的复杂斜方辉石中的溶解度。计算结果与Wood和Banno（1973）用简单热力学模型所作的预测吻合得很好。该模型已被改进使用的新数据的组合，约En 60 Fs 40（可变钙含量）和以前发表的数据，更多的镁系统的正辉石。通过对天然组合中共存的斜方辉石和石榴石的分析，可以计算出岩石的aP-T曲线，在大多数情况下，该曲线应精确到2或3 kbar。
The solubility of alumina in complex orthopyroxenes crystallised in equilibrium with garnet has been determined over the pressure-temperature range 8–30 Kb and 800–1250° C. The results are in good agreement with predictions made using the simple thermodynamic model of Wood and Banno (1973). The model has been refined using a combination of the new data on orthopyroxenes of about En60Fs40(with variable calcium content) and previously published data on more magnesian systems. Given analyses of coexisting Orthopyroxene and garnet in natural assemblages it is possible to calculate aP-Tcurve for the rock which should, in most cases, be accurate to within 2 or 3 kbar.