利用重力资料精化大陆岩石圈热结构的理论模型  

THEORETICAL MODEL OF REFINING THERMAL STRUCTURE OF CONTINENTAL LITHOSPHERE WITH GRAVITY OBSERVATIONS

作　　者：熊熊[1] 许厚泽[1] 蒋福珍[1] 

机构地区：[1]中国科学院测量与地球物理研究所,武汉430077

出　　处：《地壳形变与地震》2000年第1期17-21,共5页Crustal Deformation and Earthquake

基　　金：国家自然科学基金!( 49874 0 0 5);国家九五攀登项目资助

摘　　要：由于地表观测大地热流值的精度较低 ,并且测点分布不均匀 ,加之我们对地球内部介质热学参数随深度分布的了解也很模糊 ,因此 ,由通常解热传导方程获得的岩石层温度模型比较粗糙。本文提出一种利用重力异常资料精化传统的单纯依赖地热资料确定岩石层温度模型的方法 ,并对方法的有效性与局限性进行了讨论。The temperature structure of continental lithosphere is not well determined by solving the equation of conduction, because of the low precision, inadequate distribution of the surface heat flow observations and the poor knowledge on the distribution of thermal parameters, such as coefficient of thermal conductivity and radiogenic heat production, with the depth in the earth's interior.With grarity data a new method refining the thermal structure of the continental lithosphere, which is derived only from the thermal observations is proposed. The validity and the limitation of the method is discussed as well.

关 键 词：重力 大陆岩石圈 温度结构 理论模型 地热流 

分 类 号：P314.2[天文地球—固体地球物理学] P31[天文地球—地球物理学]