中文摘要：

文章报道了金属在高温高压气相的迁移实验研究，并阐明气相中迁移金属的成矿作用。实验是使含金属的流体在高温、高压的超临界态条件下通过相分离装置，在减低温度压力下实现气液相分离过程，收集气液相分离物，研究金属在气、液两相里的再分配。含金属（如金、铜）的NaHCO3-HCl-H2O流体在250～300℃的相分离过程实验结果表明：金属可以分布到气相里。根据金铜流体的实验结果，结合矿床调查，推测金属可以在地球深部以气体形式迁移。含金属的CO2-HCl-NaCl流体（气相）可以携带金属（金、铜），从岩石圈深部运输到地壳，甚至地表。金铜矿床矿石的形成过程中气体迁移金属起着重要作用。

英文摘要：

Vapor-liquid phase separation experiments of metal-bearing supercritical fluids due to decreasing temperature or pressure indicate that metals can be redistributed in vapor and liquid phases in the sub-critical, vapor-liquid two-phase immiscibility region. Experiments show that Au and Cu-bearing NaHCO3-HCI-H2O hydrothermal fluids are separated into vapor phase and liquid phases respectively due to the reduction of pressure and temperature over the temperature range from 250℃ to 290℃ and at 22 MPa. The experiments indicate that Au（or Cu） appears in the vapor phase, experiences transportation by vapor phase and eventually reaches earth surface. This study provides vapor-liquid phase separation experimental results of Au and Cu-bearing fluids, and illustrates the Au and Cu ore geneses caused by vapor transportation of Au and Cu. This study proves that CO2-HCI-NaCI bearing aqueous fluids （in gas phase） may carry gold and copper and transport them from the deep part of the lithosphere to the surface.