ROW: Experimental and Theoretical Investigations of GraniticPhase Equilibria

ROW：花岗质相平衡的实验和理论研究

• 批准号: 8916050
• 负责人: Hanna Nekvasil
• 金额: $ 10万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-01-01 至 1992-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8916050&HistoricalAwards=false
• 关键词: ROW; Experimental; Theoretical; Investigations; GraniticPhase

Low-calcium, high temperature granitic magmas are common where the earth's crust has been extended. The crystallization of such high temperature magmas cannot be completely characterized by the usual approaches. It is proposed here to conduct a theoretical and experimental investigation of this kind of magma. As the first stage of a major experimental and thermodynamic investigation of the effect of Fe on the phase relations in the sodic regions of the feldspar system, phase relations in a system containing the mineral fayalite will be determined. These results will be used to evaluate of the thermoynamic mixing behavior of fayalite in melts and the stability relations in many granite magmas.

在地壳伸展的地方，低钙高温花岗岩浆很常见。这种高温岩浆的结晶不能完全用通常的方法来描述。建议对这类岩浆进行理论和实验研究。作为主要的实验和热力学研究的第一阶段，铁对长石体系钠碱区的相关系的影响，将确定含有铁闪石矿物的体系的相关系。这些结果将用于评价铁闪石在熔体中的热力学混合行为和许多花岗岩岩浆中的稳定性关系。