摘要
大地热流是地球内部热作用过程最直接的地表显示 ,其中蕴涵着丰富的地质、地球物理和地球动力学信息 .我国大陆地区已定期进行了 6次热流汇编 ,其中第一、二次汇编的热流数据已正式公布 (第一、二版 ) ,此后 4次汇编仅发表了统计结果 .而未再公布汇编数据 .本文基于第六次热流数据汇编 ,将自第二版以来新增的 45 0个热流数据汇编成中国大陆地区大地热流数据第三版 .新版热流数据的统计结果表明 ,中国大陆地区实测热流值变化于2 3— 3 1 9mW/m2 ,平均 6 3± 2 4 .2mW/m2 ;剔除与地表热异常相关的数据后 ,热流值变化范围为 3 0— 1 40mW/m2 ,平均 6 1± 1 5 .5mW/m2 .
Terrestrial heat flow is the direct surface indication of the thermal process in the Earth's interior. It provides important information for geological,geophysical and geodynamical considerations. Since 1988,compilation of heat flow data have been regularly performed for 6 times in the continental area of China. The data from the first and the second compilations were reported as the 1st and 2nd editions,while the data from the later compilations were no more presented but the statistic results. Based on the sixth compilation of heat flow,this paper presents, as the 3rd edition,the 450 new heat flow data since the 2nd edition. Statistical analysis of the new data set indicates that the measured heat flow values range from 30 to 319mW/m 2 with a mean of 62.6±24.2mW/m 2;if the heat flow data related with local geothermal anomalies are excluded,the range will be reduced to be between 30 to 140mW/m 2 with a mean of 61±5.5mW/m 2.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第5期611-626,共16页
Chinese Journal of Geophysics
基金
国家基础研究发展规划项目 (G1 9990 75 5 0 4)
中国科学院知识创新项目 (KZCX1 -0 7)
