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本文描述了俄罗斯阿尔泰山Tongulack山的中压高温带状变质杂岩,讨论了应用岩浆侵入和流体模式解释其成因的方法。这个前寒武纪杂岩形成于500～700C和300～550 MPa。它是一个25～30 km宽的线状对称的变质带,是一个轴线弯曲的“热背斜”。岩石化学成分统计证明变质作用是等化学的。在这个变质杂岩中可分出4个带:绿泥石带(边缘)、堇青石带、夕线石带和无十字石带(中心)。这些带被等梯度带所分隔:堇青石、十字石出现或夕线石和十字石消失。可以认为,变质分带
This paper describes the medium-pressure and high-temperature banded metamorphic complexes in the Tongulack Mountains of the Altai, Russia, and discusses the methods of using magmatic intrusions and fluid models to explain their genesis. This Precambrian complex was formed at 500-700 C and 300-550 MPa. It is a 25-30 km wide linear symmetric metamorphic belt, is a curved axis of the “thermal anticline.” Petrochemical composition statistics show metamorphism is metamorphic. In this metamorphic complex, there are four zones that can be divided into chlorite zone (edge), cordierite zone, sillimanite zone and non-cross-belt zone (center). These bands are separated by an isometric band: cordierite, the presence of a cross-stone, or the disappearance of sillimanite and cross-stone. It can be said that metamorphism banding