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人们正在直径30公里的瑞典锡利延陨石坑挖掘,目标是7500米的地层深处,以便证实一个设想:石油和天然气的起源是地球内部的无机物地幔。 在靠近苏芬边界的苏联科拉半岛,正在进行15000米深的学术钻探,耗时十年,井深已达12066米,所窥视到的地底层完全不是地震学家和地质学家所预想的世界。从地震波的观测,一般将地球“表皮”厚30公里左右的大陆地壳,分成花岗岩质的上部地壳和玄武岩质的下部地壳。按照这个常识,在科拉半岛地下7公里处就应该达到下部地壳玄武岩层。但是,实际上挖掘出来的全是花岗岩和变质岩。因而,与天空和海洋相比,地球对于我们来说,实际上是一个谜。
People are digging in the 30-kilometer cradle of the Silithyan, Sweden, with a target depth of 7500 meters in order to confirm the idea that oil and gas originate from the inorganic mantle inside the Earth. In the Soviet Union Kola Peninsula, near the Sufen border, 15,000-meter deep academic drilling is taking place, taking 10 years to reach a depth of 12,066 meters. The ground floor to be peeped is completely beyond the world foreseen by seismologists and geologists . From the observation of seismic waves, the continental crust, which is about 30 kilometers thick on the Earth’s “epidermis,” is generally divided into granitic upper crust and basaltic lower crust. According to this common sense, the lower crust basalts should have been reached 7 km below the Kola Peninsula. However, in fact all excavated granite and metamorphic rocks. Thus, the Earth is actually a mystery for us compared to the sky and the ocean.