摘要
古地温曲线是岩石圈在特定地质时期热结构的集中体现。采用矿物地质温压计是建立古地温曲线的基本途径。对比研究发现，适于建立古地温曲线的温压计有Ｂｒｅｙ和Ｋｏｈｌｅｒ（１９９０）、Ｂｅｒｔｒａｎｄ和Ｍｅｒｃｉｅｒ（１９８５）的二辉石温度计，Ｅｌｉｓ和Ｇｒｅｅｎ（１９７９）、Ｋｒｏｇｈ（１９８８）、Ｂｅｒｍａｎ等（１９９５）的石榴石单斜辉石Ｆｅ２＋—Ｍｇ交换反应温度计，Ｎｉｃｋｅｌ和Ｇｒｅｅｎ（１９８５）、Ｂｒｅｙ和Ｋｏｈｌｅｒ（１９９０）的石榴石斜方辉石Ａｌ压力计。
Paleogeotherm is important for understanding the thermal structure of lithosphere at a specific geological time.Geothermobarometry is a fundamental way for constructing a paleogeotherm.By comparison of existing thermobarometers,it is found that the optimal geothermobarometers for constructing paleogeotherm include the twopyroxene thermometers of Brey and Kohler(1990),Bertrand and Mercier(1985),thermometers of Ellis and Green(1979),Krogh(1988),and Berman et al(1995)based on Fe^2+Mg exchange between garnet and clinopyroxene,barometers of Nickel and Green(1985),Brey and Kohler(1990)based on Al exchange between garnet and orthopyroxene.The thermobarometer based on clinopyroxenebasaltic melt equilibrium presented by Putrika et al(1996)is also promising for establishing a geotherm.
出处
《地质科技情报》
CAS
CSCD
北大核心
1997年第4期93-100,共8页
Geological Science and Technology Information
基金
国家教委<跨世纪优秀人才计划>基金
