论文部分内容阅读
引言一般认为,太古代期间地球内部的发热量比现代高3—4倍。然而,这种高发热量是否会产生较高的地热梯度,这是一个值得认真讨论的有争议的课题。Burke和Kidd(1978)指出,太古代的大陆地热梯度与现代大陆的相近,而且太古代多有的地热是由于洋脊系统的总长度较长或扩张速度较大而释放出来的,或者是由于这两种作用共同作用而释放出来的。太古代大陆下面的地热梯度与现代的类似,自
Introduction It is generally believed that during the Archean period, the heat inside the earth is 3-4 times higher than that of modern times. However, it is a controversial topic worthy of serious discussion whether this high heat will produce a higher geothermal gradient. Burke and Kidd (1978) pointed out that the geothermal gradient of the Archean continent is similar to that of the modern continent and that the more archeological geothermal energy is released due to the longer or more extensive expansion of the ocean ridge system, or due to The two roles are released together. The geothermal gradient below the Archean continent is similar to that of the modern one