【摘要】 对安基山、盘龙岗燕山期中酸性侵入岩由早期到晚期化学组分逐渐向基性过渡,陈思松称之为岩浆逆向演化。作者认为是岩浆液态不混熔的表现形式,遂通过模拟熔融实验验证了这一认识。更多还原

【Abstract】 Simulated experimental melting of granodiorite-porphyry corífirms that the chemical com- position of Yenshanian intermediate-acidic intrusive rocks in Anjishan and Panlonggang distri- cts exist a transitional trend from intermediate-acidic to basic from early to late.And this trend is,in fact,a form of immiscible liquid magma. The experimental results point out:1.that the converse evolution of some intrusive roc- ks in the districts result in the liquid immiscibility of the magma melts rich in volatile com- ponents;2.that the homogenization temperature could stand for the temperature of primi- tive magma and the temperature of primary liquid inclusion in quartz is near the consolida- tion temperature of the magma;3.that the intergranular solution produced in the crystalline evolution of magma has mineralization ability to a certain degree.更多还原