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地球内部天然放射性元素在不断衰变过程中所产生的地热能对地壳运动和地球演化必然要发生重大影响,甚至是决定性的影响。国内外学者早就注意到这个问题。侯德封等综合国外研究结果计算出地球中四种主要放射性同位素~(238)U、~(235)U、~(232)Th和~(40)K通过衰变每年所产生的热量为6.435×10~(20)卡。虽然这种计算不可能很准确,国外各家计算结果也有一定出入,但可以肯定衰变所产生的热量是非常巨大的。按照他们的计算,只要经过几亿年的积累,就可使整个地壳达到溶化程度。其所以没有出现这种情况,是因为地
The geothermal energy generated by the decay of natural radioactive elements in Earth’s interior inevitably has a significant and even decisive influence on crustal movement and the evolution of the earth. Scholars at home and abroad have long noticed this problem. Hou Defeng and other comprehensive foreign study results calculated that the Earth’s four major radioisotopes ~ (238) U, ~ (235) U, ~ (232) Th and ~ (40) K through the decay of the annual heat generated by 6.435 × 10 ~ (20) card. Although this kind of calculation can not be very accurate, there are certain discrepancies in the calculation results of various countries abroad, but it can be affirmed that the heat generated by decay is very huge. According to their calculations, as long as hundreds of millions of years of accumulation, the entire crust can reach the level of melting. So it did not happen because of the ground