高压超高压变泥质岩适用的地质温压计评述

摘要

高压超高压变泥质岩形成温压条件及p-T演化轨迹是高压超高压变质作用研究的重要内容.本文介绍了高压超高压变泥质岩适用的几种地质温压计,包括石榴子石-多硅白云母Fe2+-Mg交换温度计、石榴子石-绿泥石Fe2+-Mg交换温度计、硬绿泥石-绿泥石Fe2+-Mg交换温度计、多硅白云母Si含量压力计、金红石Zr含量温度计、榍石Zr含量温压计、锆石Ti含量温度计、石英Ti含量温度计以及氧同位素温度计,并对上述温压计的适用条件及使用时的注意事项做了简要评述.%p-T conditions and p-T paths of (ultra) high-pressure metapelites are important aspects in the study of (ultra) high-pressure metamorphism.This paper introduces several kinds of geothermobarometers applicable to (ultra) high-pressure metapelites,which include the garnet-phengite Fe2+-Mg exchange geothermometer,garnet-chlorite Fe2 +-Mg exchange geothermometer,chloritoid-chlorite Fe2+-Mg exchange geothermometer,Si-in-phengite geobarometer,Zr-in-rutile geothermometer,Zr-in-titanite geothermobarometer,Ti-in-zircon geothermobarometer,Tiin-quartz geothermobarometer and oxygen isotope geothermometer.In addition,a review is given concerning the applicable conditions and points for attention in use of the above geothermobarometers.