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地球是一个庞大的热库,其内部蕴藏着数字惊人的热能。这些热能,主要是由组成地球物质中的放射性元素蜕变而产生的。据统计,如果地球硅铝层平均厚20公里,那么仅这个壳层所含的放射性元素每年就产生10~(21)焦耳的热能。热能以干热岩体、岩浆、气体、蒸汽和地下热水的形式赋存于地球中,构成地球的热场。热能不断地产生,不断地向地球表面散
The Earth is a huge thermal reservoir with a surprising amount of thermal energy inside. These heat, mainly by the formation of radioactive elements in Earth’s metamorphosis produced. According to statistics, if the Earth’s average thickness of silicon-aluminum layer 20 km, then only the shell contains radioactive elements each year to produce 10 ~ (21) joules of thermal energy. Thermal energy in dry hot rock, magma, gas, steam and underground hot water in the form of earth, constitute the Earth’s thermal field. Heat is constantly generated, constantly scattered to the surface of the earth